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类别索引

这些是 API 类。查看所有API 包。

A

解析器	通过解析“aapt dump badging”的输出从 apk 中提取信息的类。
AaptParser.Aapt版本	用于解析 APK 文件的 AAPT 版本的选项枚举。
阿比	表示 ABI 的类。
格式化程序	abi 的实用程序类。
能力工具	用于处理设备 ABI 的实用程序类
抽象连接	抽象连接表示。
抽象主机监视器	主机健康监控的典型类。
抽象XML解析器	用于解析 xml 文件的帮助器基类
抽象 XmlParser.ParseException	如果无法解析 XML 输入，则抛出
AcloudConfigParser	解析 Acloud 配置的助手类（用于启动云设备实例）。
AcloudConfigParser.AcloudKeys	可以从配置中搜索的键集。
行动进行中	正在进行的一般操作。
主动跟踪	帮助描述和管理活动跟踪的主类。
活动状态检查器	在模块末尾运行的遗留活动的状态检查器。
Adb根电梯	一个`AutoCloseable` ，它在需要时在构建时启用 adb root，并在完成时恢复 root 状态。
AdbSsh连接	通过 ssh 桥接的 Adb 连接。
AdbStopServerPreparer	目标准备器在运行 adb 测试之前和之后停止主机上的 adb 服务器。
AdbTcpConnection	设备的默认连接表示，假定为设备的标准 adb 连接。
AdbUtils	用于 adb 操作的实用程序类。
课后信息	与`AfterClass`类似的保证，但注释的方法必须需要一个`TestInformation`参数。
聚合后处理器	一个度量聚合器，它为在多次迭代测试运行期间收集的数字度量提供最小值、最大值、平均值、方差、标准差、总数、计数和可选的百分位数，将它们视为双精度数。
所有测试应用程序安装设置	将`IDeviceBuildInfo#getTestsDir()`文件夹中的所有应用程序安装到设备上的`ITargetPreparer` 。
AltDir行为	为各种测试工件安装程序/推送程序定义替代目录行为的枚举
AndroidJ单元测试	使用 android.support.test.runner.AndroidJUnitRunner 在给定设备上运行仪器测试包的测试。
Aoa目标准备器	`ITargetPreparer`使用 Android Open Accessory (AOAv2) 协议执行一系列操作（例如点击和滑动）。
应用构建信息	代表 Android 应用程序及其测试包的`IBuildInfo` 。
AppDeviceBuildInfo	此类已弃用。直接使用`IDeviceBuildInfo` 。
应用设置	安装 apk 及其测试的`ITargetPreparer` 。
AppVersionFetcher	用于从设备获取应用程序版本字符串的实用程序类。
AppVersionFetcher.AppVersionInfo	应用版本信息类型。
ArchModule控制器	模块控制器在不匹配任何给定架构时不运行测试。
参数选项解析器	从解析的命令行参数填充`Option`字段。
数组工具	数组的实用方法
ArtChrootPreparer	为 ART 测试创建 chroot 目录。
艺术测试
ArtRun测试	运行 ART 运行测试的测试运行器。
ArtRunTest.AdbShellCommandException异常	一个异常类，用于报告在执行 ADB shell 命令期间发生的错误。
ATestFileSystemLogSaver	ATest 使用这个 LogSaver 类将日志保存在特定路径中。
测试跑者	`ITestSuite`的实施
跟踪收集器	在测试期间运行 atrace 并收集结果并将其记录到调用中的`IMetricCollector` 。
AtraceRunMetricCollector	从测试设备的给定目录下的所有测试目录中收集跟踪，记录测试目录并后处理测试目录下的跟踪文件并聚合指标。
自动日志收集器	描述线束可以自动处理哪个收集器的枚举。
自动化记者	定义来自 Tradefed 自动报告程序的映射的类。
平均后处理器	计算指标列表平均值的后处理器的实现。

乙

背景设备动作	在给定设备上根据需要重复运行命令，直到操作被取消。
BaseDeviceMetricCollector	`IMetricCollector`的基本实现，允许在`onTestRunStart(com.android.tradefed.device.metric.DeviceMetricData)`和`ERROR(/#onTestRunEnd(com.android.tradefed.device.metric.DeviceMetricData,Map))`上开始和停止收集。
BaseEmulatorPreparer	用于启动本地模拟器的通用准备器。
BaseHostJUnit4Test	用于运行主机 JUnit4 样式测试的基础测试类。
基础水平对数输出	`ILeveledLogOutput`的基本实现，允许根据名称或组件过滤某些标签。
基础模块控制器	`IModuleController`的基本实现，应该实现以检查模块是否应该运行。
BaseMultiTargetPreparer	允许禁用对象的`IMultiTargetPreparer`的基本实现。
基础后处理器	每个实现都应该扩展的基础`IPostProcessor` 。
基础重试决定	`IRetryDecision`的基础实现。
BaseStreamLogger <OS 扩展 OutputStream>	将日志消息定向到输出流和标准输出的`ILeveledLogOutput` 。
基础目标准备者	`ITargetPreparer`的基本实现类，允许控制对象是否被禁用。
基础测试套件	使用新套件系统运行兼容性测试套件的测试。
电池控制器	允许控制设备电池充电状态的实用程序类。
电池充电设备恢复	允许在设备的电池电量低于给定阈值时触发命令。
电池温度
电池不可用设备恢复	如果电池电量不可用，将触发配置的恢复检查器。
BeforeClassWithInfo	与`BeforeClass`类似的保证，但注释的方法必须需要一个`TestInformation`参数。
二元状态	Enum 用于记录 ON/OFF 状态和 IGNORE 无操作状态。
BluetoothConnectionLatencyCollector	收集器会将预定义的 statsd 持续时间指标配置推送到设备，并收集每个配置文件的蓝牙连接持续时间。
蓝牙连接状态收集器	此收集器将收集 BluetoothConnectionStateChanged 指标并记录每个配置文件的连接状态数。
蓝牙连接成功率后处理器	计算蓝牙配置文件成功率的后处理器的实现使用“metric-key-match”指定包含数字数组示例 [0, 1, 2, 3, 0, 1, 2, 3] 中的蓝牙连接状态的指标。
蓝牙HciSnoopLog收集器	收集器，用于在 DUT 上启用蓝牙 HCI 侦听日志记录并收集每个测试的日志。
蓝牙工具	用于在设备上调用 BluetoothInstrumentation 的实用函数设备端 BluetoothInstrumentation 代码可以在 AOSP 中找到： `frameworks/base/core/tests/bluetoothtests`
BootstrapBuildProvider	从测试设备引导构建信息的`IDeviceBuildProvider` 这通常用于具有外部提供构建的设备，即
BootstrapServiceFileResolverLoader	使用服务加载工具加载解析器。
错误报告	包含错误报告文件引用的对象，与平面错误报告和压缩错误报告 (bugreportz) 兼容。
错误报告收集器	一个传递`ITestInvocationListener` ，它在发生可配置事件时收集错误报告，然后在收集每个错误报告后对其子项调用`ITestInvocationListener#testLog` 。
错误报告收集器.过滤器
错误报告收集器.Freq
错误报告收集器.名词
错误报告收集器谓词	描述何时捕获错误报告的完整谓词。
错误报告收集器关系
错误报告收集器.SubPredicate
BugreportzOnFailureCollector	当测试用例失败时收集错误报告。
错误报告 zOnTestCaseFailureCollector	当运行中的测试用例失败时收集错误报告。
构建错误	如果提供的构建无法运行，则抛出。
构建信息	应与`ITestDevice`关联的`IBuildInfo`的通用实现。
BuildInfoKey	与构建信息查询相关的类持有枚举。
BuildInfoKey.BuildInfoFileKey	描述可通过`IBuildInfo.getFile(com.android.tradefed.build.BuildInfoKey.BuildInfoFileKey)`查询的所有已知文件类型的枚举。
构建信息记录器	将构建信息元数据写入指定文件的`ITargetPreparer` 。
BuildInfoUtil	帮助操作`IBuildInfo`实用程序类
构建检索错误	检索构建以进行测试时发生致命错误。
构建序列化版本	包含所有`IBuildInfo`的当前序列化版本的类。
BuildTestsZipUtils	一个帮助程序类，用于与 Android 构建系统生成的测试 zip 相关的操作
群发邮件	允许以下配置的电子邮件发件人实用程序：发送间隔、初始突发大小、收件人和消息总数。
捆绑工具工具	使用 bundletool 命令行在设备上安装 .apks 的实用程序类。
字节数组输入流源
字节数组列表	一个表示轻量级字节数组的类。
字节数组工具	对字节数组进行操作的实用程序，例如，将字节转换为整数。

C

汽车模块控制器	该控制器可防止在非汽车设备上执行测试用例。
携带DNA错误	通过JUnit4框架携带`DeviceNotAvailableException`内部`ERROR(/RuntimeException)` 。
携带中断异常	当触发测试阶段超时，需要将InterruptedException从测试执行线程携带到调用执行线程时抛出。
CdmaDeviceFlasher	在具有 CDMA 收音机的物理 Android 设备上闪烁图像的类。
CecControllerTokenProvider	消费电子控制 (CEC) 相关令牌的令牌提供商。
中央目录信息	CentralDirectoryInfo 是一个包含 zip 文件中文件/文件夹信息的类。
检查配对准备器	一个`CompanionAwarePreparer` ，用于验证主要设备和配套设备之间的 BT 绑定
CircularAtraceUtil	atrace 实用程序主要用于在 Monkey 测试期间识别 ANR 的根本原因。
循环字节数组	用于保存作为循环缓冲区运行的固定大小数组的数据结构，并跟踪数组中所有值的总和。
ClangCodeCoverageCollector	一个`BaseDeviceMetricCollector` ，它将从设备中提取 Clang 覆盖测量并将它们记录为测试工件。
类未找到配置异常	`ConfigurationException`用于当找不到对象的类时。
类路径扫描器	在类路径中查找条目。
ClassPathScanner.ClassNameFilter	过滤和转换 java 类名的`IClassPathFilter` 。
ClassPathScanner.ExternalClassNameFilter	拒绝内部类的`ClassNameFilter`
类路径扫描仪.IClassPathFilter	类路径入口路径的过滤器在`FileFilter`之后模式化
发条工具	用于共享多设备逻辑的发条实用程序
CloseableTraceScope	允许通过 try-with-resources 报告跟踪部分的作用域类
集群构建信息	用于从 TFC 通过管道传输的构建的`IBuildInfo`类。
ClusterBuildProvider	用于下载 TFC 测试资源的`IBuildProvider` 。
集群客户端	用于与 TFC 后端交互的`IClusterClient`实现。
集群命令	表示从 TF 集群中获取的任务的类。
ClusterCommand.RequestType
ClusterCommand.State	命令在 TF 集群中的状态。
ClusterCommandConfigBuilder	为集群命令构建配置文件的类。
集群命令事件	封装要上传的集群命令事件的类。
ClusterCommandEvent.Builder
ClusterCommandEvent.类型
ClusterCommandLauncher	一个`IRemoteTest`类，用于通过子进程 TF 从 TFC 启动命令。
ClusterCommandScheduler	支持 TFC (Tradefed Cluster) 的`ICommandScheduler` 。
集群命令状态	代表来自 TF 集群的命令的状态和取消原因的类。
集群设备信息	封装要上传的集群设备信息的类。
ClusterDeviceInfo.Builder
集群设备监控器	向 Tradefed 集群服务报告结果的`IDeviceMonitor`实施。
ClusterEventUploader <T extends IClusterEvent >	ClusterEventUploader类，将`IClusterEvent`上传到TFC。
集群主机事件	封装要上传的集群主机事件的类。
ClusterHostEvent.Builder
ClusterHostEvent.HostEventType	不同类型的主机事件的枚举。
ClusterHostUtil	TF Cluster 的静态 util 函数，用于获取全局配置实例、主机信息等。
ClusterLogSaver	用于将测试输出上传到 TFC 的`ILogSaver`类。
ClusterLogSaver.FilePickingStrategy	文件选择策略。
集群选项
代码覆盖测试	在给定设备上运行仪器测试包并生成代码覆盖率报告的测试。
收集字节输出接收器	将整个 shell 输出收集到`byte[]`中的`IShellOutputReceiver` 。
收集输出接收器	一个`IShellOutputReceiver` ，它将整个 shell 输出收集到一个`ERROR(/String)`中。
收集测试监听器	将收集所有测试结果的`ITestInvocationListener` 。
收集助手	在几个地方需要做一些`IMetricCollector`操作的助手。
命令文件解析器	包含命令行集的文件的解析器。
CommandFileParser.CommandLine
命令中断器	允许中断 TradeFederation 命令或将其标记为不可中断的服务。
CommandLineBuildInfoBuilder	实用程序旨在从命令行捕获常用的构建信息参数并从中创建`IBuildInfo` 。
命令选项	`ICommandOptions`的实施。
命令选项获取器	返回给定调用的命令选项值的服务实现。
命令结果	包含命令的结果。
命令运行器	将运行命令行参数中指定的命令然后退出的备用 TradeFederation 入口点。
CommandRunner.ExitCode	可能退出的错误代码。
命令调度程序	用于在所有可用设备上运行 TradeFederation 命令的调度程序。
CommandScheduler.HostState	主机不同状态的枚举
命令状态	表示定时操作的状态。
命令状态处理器	帮助监视和更新调用状态的处理程序。
CommonLogRemoteFileUtil	此实用程序允许避免代码重复跨不同的远程设备表示常见文件的远程日志提取逻辑。
CommonLogRemoteFileUtil.KnownLogFileEntry	远程设备的已知日志条目的表示。
同伴分配器	负责分配和释放配套设备的基类应该实施`getCompanionDeviceSelectionOptions()`来描述分配配套设备所需的标准
CompanionAware准备者	一个`ITargetPreparer` ，它封装了获取已分配的配套设备的逻辑。
同伴意识测验	封装获取和检查配套设备样板的基础测试类子类可以调用`getCompanion()`来检索分配的同伴。
配套设备追踪器	用于分配和释放配套设备的类
CompanionRunCommandTargetPreparer	在分配的配套设备上运行指定命令的`ITargetPreparer`
CompanionTestAppInstallSetup	一个`ITargetPreparer` ，它将`IDeviceBuildInfo#getTestsDir()`文件夹中的一个或多个应用程序安装到分配的配套设备上。
CompileBootImageWithSpeedTargetPreparer	使用编译器过滤器“speed”重新编译引导类路径和系统服务器。
条件故障监视器	监视调用是否有任何失败。
条件优先级阻塞队列<T>	具有类似`ERROR(/PriorityBlockingQueue)`的操作的线程安全类，可以检索符合特定条件的对象。
ConditionPriorityBlockingQueue.AlwaysMatch <T>	匹配任何对象的`ConditionPriorityBlockingQueue.IMatcher` 。
ConditionPriorityBlockingQueue.IMatcher <T>	用于确定元素是否匹配某种条件的接口。
配置完成器	为我们的 TF 配置实施`Completer` 。
配置	将加载的配置对象存储在映射中的具体`IConfiguration`实现。
配置定义	保存配置、其关联对象及其选项的记录。
ConfigurationDef.ConfigObjectDef	保存类名信息及其外观编号的对象（例如，如果一个配置两次具有相同的对象，则第一个将具有第一个外观编号）。
配置描述符	描述配置本身某些方面的配置对象。
配置描述符.LocalTestRunner	用于指示本地测试运行器的枚举。
配置异常	如果无法加载配置则抛出。
配置工厂	用于创建`IConfiguration`工厂。
配置工厂.ConfigLoader	`IConfigDefLoader`的实现，它从一个根配置跟踪包含的配置，并在循环包含时抛出异常。
配置工厂.ExceptionLoader
配置工具	处理配置文件的实用函数。
配置XmlParserSettings	接受 ConfigurationXmlParser 设置的简单类要将设置传递给此类，别名是必需的。
配置 YamlParser	YAML 样式 Tradefed 配置的解析器
配置工具	用于创建、交互和推送 statsd 配置文件的实用程序类。
安慰	TradeFederation 主控制台为用户提供交互界面目前支持操作如添加命令进行测试列出设备及其状态列出正在进行的调用列出队列中的命令将调用日志转储到文件/stdout 关闭
控制台.ArgRunnable <T>	带有可以带参数的`run`方法的`ERROR(/Runnable)`
控制台.CaptureList	`List<List<String>>`的便利类型
ConsoleReaderOutputStream	一个 OutputStream，可用于使`System.out.print()`与用户的`LineReader` unfinishedLine 配合得很好。
控制台结果报告器	结果报告器将测试结果打印到控制台。
ContentProvider处理程序	抽象内容提供者交互并允许使用设备端内容提供者进行不同操作的处理程序。
计数测试结果监听器	通过`TestStatus`跟踪测试总数的`TestResultListener`
计数测试用例收集器	计算并报告给定`IRemoteTest`测试用例数。
覆盖测量转发器	将覆盖测量从构建提供程序转发到记录器的占位符测试。
覆盖选项	Tradefed 反对持有覆盖选项。
CoverageOptions.工具链
CpuThrottlingWaiter	`ITargetPreparer`等待所有内核的最大频率恢复到可用的最高级别
创建AvdPreparer
创建用户准备者	用于创建用户并在最后清理它的目标准备器。
当前调用	一个跟踪并提供当前调用信息的类，该信息在调用内部的任何地方都很有用。
CurrentInvocation.InvocationInfo	我们将始终为调用填充的一些特殊命名键。
CurrentInvocation.IsolationGrade	描述隔离级别

丁

DebugHostLogOnFailureCollector	发生测试用例失败时收集并记录主机端日志的收集器。
默认连接	设备的默认连接表示，假定为设备的标准 adb 连接。
默认连接.ConnectionBuilder	Builder 用于描述连接。
默认远程AndroidTestRunner	ddmlib `RemoteAndroidTestRunner`的扩展，用于为 Tradefed 用例设置一些默认值。
DefaultTestsZipInstaller	测试 zip 安装程序的默认实现。
委托调用执行	`InvocationExecution`将执行委托给另一个 Tradefed 二进制文件。
依赖解析器	一种新型提供程序，允许获取测试的所有依赖项。
设备分配结果	表示命令分配尝试的结果。
设备分配状态	从 IDeviceManager 角度表示设备的分配状态
设备可用检查器	检查器以确保模块不会使设备处于离线状态。
设备基线检查器	在每个模块之前设置设备基线设置。
设备基线设定器	用于创建设备基线设置的抽象类。
DeviceBatteryLevelChecker	`IRemoteTest`检查最低电池电量，如果不存在最低电量，则等待电池达到第二个充电阈值。
DeviceBatteryResourceMetricCollector	此收集器收集设备电池指标。
设备构建描述符	`IBuildInfo`的包装类，其中包含用于检索设备平台构建信息的辅助方法。
设备构建信息	代表完整 Android 设备构建和（可选）其测试的`IBuildInfo` 。
DeviceBuildInfoBootStrapper	用从设备读取的属性替换构建信息字段的`ITargetPreparer` 这对于测试具有从外部源生成的构建的设备很有用（例如
DeviceBuildInfoInjector	将`DeviceBuildDescriptor`元数据插入`IBuildInfo` `ITargetPreparer` 。
设备清理器	在测试后执行重启或格式化作为清理操作，并可选择关闭屏幕
DeviceCleaner.CleanupAction
DeviceCleaner.PostCleanupAction
DeviceConcurrentUtil	包含用于并发设备端命令执行的实用方法和类使用`ERROR(/ExecutorService)`运行作为`ShellCommandCallable`实现的命令，并使用`ERROR(/#joinFuture(String,Future,long))`与`ERROR(/ExecutorService)`返回的`ERROR(/Future)`同步以执行命令。
DeviceConcurrentUtil.ShellCommandCallable <V>	一个`ERROR(/Callable)`包装了在`ITestDevice`上执行 shell 命令的细节。
设备配置持有人	将加载的设备配置对象存储在其属性中的具体`IDeviceConfiguration`实现。
设备描述符	包含描述被测设备的信息的类。
设备断开异常	当设备不再可通过其传输类型访问时抛出，例如，如果设备不再通过 USB 或 TCP/IP 连接可见
设备错误标识符	来自设备错误和设备报告错误的错误标识符。
设备启动失败错误	如果设备在使用构建刷新后无法启动，则抛出。
设备功能模块控制器	不支持某些功能时不运行测试的模块控制器。
设备文件报告器	一个实用程序类，用于检查设备中的文件并将它们发送到`ITestInvocationListener#testLog(String, LogDataType, InputStreamSource)`如果找到）。
DeviceFlashPreparer	在物理 Android 硬件上闪烁图像的`ITargetPreparer` 。
设备可折叠状态	“cmd device_state print-states”返回的设备可折叠状态的表示。
设备文件夹构建信息	一个`IDeviceBuildInfo` ，它还包含本地文件系统目录中包含的其他构建工件。
DeviceImageZipFlashingTargetPreparer	一个目标准备器，它使用通过特定格式提供的设备映像刷新设备。
DeviceInternetAccessibilityResourceMetricCollector	收集器 ping google.com 以检查设备是否可以访问互联网。
DeviceJUnit4ClassRunner	也适用于`IDeviceTest` JUnit4 测试运行器。
DeviceJUnit4ClassRunner.LogAnnotation	假注意在向记者携带日志。
DeviceJUnit4ClassRunner.MetricAnnotation	虚假注释意味着向记者提供指标。
DeviceJUnit4ClassRunner.TestLogData	`ExternalResource`和`TestRule`的实现。
DeviceJUnit4ClassRunner.TestMetrics	`ExternalResource`和`TestRule`的实现。
设备管理GrpcServer	GRPC 服务器允许从 Tradefed 保留设备。
装置经理
DeviceManager.FastbootDevice	Fastboot 模式下设备的表示。
设备指标数据	用于保存指标收集器收集的所有数据的对象。
DeviceMonitor多路复用器	将请求传播到多个`IDeviceMonitor`代理类。
DeviceNotAvailableException	当设备不再可用于测试时抛出。
设备所有者目标准备者	设置设备所有者组件的`ITargetPreparer` 。
设备参数化运行器	JUnit4 风格的参数化运行器，用于主机端驱动的参数化测试。
设备属性	设备端属性名称的通用常量定义
DeviceRecoveryModeUtil
DeviceReleaseReporter	处理与父进程通信的设备发布报告器处理要发布的设备。
设备重置功能	设备重置的服务器端实现。
设备重置处理程序	一般处理设备重置的实用程序。
设备运行时异常	当设备操作未产生预期结果时抛出。
设备选择选项	设备选择标准的容器。
DeviceSelectionOptions.DeviceRequestedType	支持的不同可能类型的占位符设备。
设备设置检查器	检查模块运行期间设备设置是否已更改。
设备设置	一个`ITargetPreparer` ，它根据提供的`Option`配置设备进行测试。
设备状态监视器	用于监视`IDevice`状态的辅助类。
DeviceStorageAgeResourceMetricCollector	从 logcat 解析存储年龄。
设备存储填充器	目标准备器填满存储空间，以便有一些可用空间可用。
设备存储状态检查器	检查设备是否有足够的磁盘空间用于给定的分区。
设备字符串推送器	目标准备器将字符串写入文件。
设备套件	扩展 JUnit4 容器`Suite` ，以便为需要它的测试提供`ITestDevice` 。
设备同步助手	帮助将新设备映像同步到设备的助手。
设备测试用例	提供`IRemoteTest`和`IDeviceTest`服务的 Helper JUnit 测试用例。
设备测试结果	`TestResult`的特化，当`DeviceNotAvailableException`发生时将中止
DeviceTestResult.RuntimeDeviceNotAvailableException
设备测试运行选项	与通过 BaseHostJUnit4Test 运行设备测试相关的选项的构建器类。
设备测试套件	提供`IRemoteTest`和`IDeviceTest`服务的 Helper JUnit 测试套件。
设备跟踪收集器	收集器将在测试运行开始时启动 perfetto trace 并在结束时记录跟踪文件。
设备不可用监视器	此侦听器仅尝试捕获测试用例级别的 DNAE。
设备无响应异常	`DeviceNotAvailableException`的特化，指示设备对 adb 可见，但没有响应（即命令超时、无法启动等）
设备更新目标准备器	一个抽象的`ITargetPreparer` ，它负责使用来自外部源（与构建服务相对）的设备映像文件更新设备的常见步骤。
DeviceWifiResourceMetricCollector	收集器收集当前连接的 wifi 信号强度和链接速度指标。
设备刮水器	擦除用户数据的`ITargetPreparer`
有向图<V>	有向未加权图的实现。
禁用 SELinuxTargetPreparer	如果启用，则禁用 SELinux 的目标准备器。
DryRunKeyStore	用于试运行的密钥库，其中始终正确替换和找到任何密钥库值。
干流器	透明地试运行测试而不是实际执行它们。
动态文件存根测试	这是一个 tradefed 测试，用于测试 tradefed 是否可以正确解析动态文件。
动态远程文件解析器	帮助解析远程文件路径的类。
DynamicRemoteFileResolver.FileResolverLoader	加载`IRemoteFileResolver`的实现。
动态系统准备器	一个`ITargetPreparer` ，它在使用动态系统更新构建的设备之上设置系统映像。

乙

早期设备发布功能	用于早期设备发布的功能服务器实现。
电子邮件	发送电子邮件的助手类。
电子邮件主机健康代理	用于从主机监视器报告发送电子邮件的`IHostHealthAgent`实现
EmmaXml 常量	解析 emma xml 报告时使用的常量。
模拟器内存CpuCapturer
结束中央目录信息	EndCentralDirectoryInfo 是一个包含 zip 文件的整体信息的类。
EnforcedSeLinuxChecker	确保 Selinux 状态的状态检查器。
擦除用户数据准备者	擦除设备上的用户数据的`ITargetPreparer` 。
错误标识符	此接口描述特定错误及其属性。
错误存储工具	用于处理错误以与公共存储对齐的辅助类。
事件记录器监听器	将接收到的所有事件记录到文件中的侦听器
ExceptionThrowingRunnerWrapper
可执行基础测试	可执行测试样式的基类。
可执行主机测试	在主机上运行的可执行文件的测试运行器。
可执行目标测试	在目标上运行的可执行文件的测试运行器。
执行文件	测试或调用执行过程中产生的文件依赖，需要携带进行测试。
ExecutionFiles.FilesKey	地图已知标准键的枚举。
执行属性	在执行测试或调用期间生成的属性。
现有构建提供者	返回已构建的`IBuildInfo` `IBuildProvider` 。
扩展文件	标准文件的扩展，用于携带构建相关的元数据。

F

故障描述	描述 Trade Federation 中的失败信息的类。
假测试	一种假测试，其目的是轻松生成可重复的测试结果。
假测试 Zip 文件夹	一个测试装置，它根据内容列表创建一个假的解压缩测试文件夹。
FakeTestsZipFolder.ItemType
FastbootCommandPreparer	触发 fastboot 并发送 fastboot 命令的目标准备器。
FastbootDeviceFlasher	依赖 fastboot 在物理 Android 硬件上刷新图像的类。
快速启动助手	用于快速启动操作的辅助类。
FastbootUpdateBootstrapPreparer	一个`ITargetPreparer`将指定文件（引导加载程序、无线电、设备映像 zip）暂存到`IDeviceBuildInfo`中以使用`FastbootDeviceFlasher`刷新设备，然后将启动后设备属性注入构建信息以用于结果报告目的。
致命主机错误	指示运行 TradeFederation 的主机上发生了致命的不可恢复错误的异常，应关闭 TradeFederation 实例。
FeatureFlagTargetPreparer	更新 DeviceConfig（由远程服务调整的功能标志）。
文件下载缓存	维护下载文件的本地文件系统 LRU 缓存的辅助类。
文件下载缓存工厂	用于创建`FileDownloadCache`工厂
文件下载缓存包装器	一个包装类，它在实现`IFileDownloader`接口时提供`FileDownloadCache`设施。
文件空闲监视器	监视文件并在它们空闲时执行回调（即
文件输入流源	采用输入文件的`InputStreamSource` 。
文件记录器	`ILeveledLogOutput`将日志消息定向到文件和标准输出。
FileProtoResultReporter	将`TestRecord`转储到文件中的原型记者。
FilePullerDeviceMetricCollector	一个`BaseDeviceMetricCollector` ，它侦听来自设备的指标键并将它们作为文件从设备中提取。
FilePuller日志收集器	设备端上报文件的Logger。
文件系统日志保存器	将日志保存到文件系统。
文件工具	文件相关操作的辅助类
FileUtil.HarnessIOException 异常	利用有助于携带文件问题的异常。
FileUtil.LowDiskSpaceException	如果可用磁盘空间低于最小阈值则抛出。
FilteredResultForwarder	`ResultForwarder`的变体，它只允许报告`TestDescription`的白名单。
固定字节数组输出流	仅保留最大数据量的内存中`ERROR(/OutputStream)` 。
闪烁方式	描述用于闪存被测设备的方法的枚举
FlashingResourcesParser	一个解析出闪存设备所需的辅助图像文件所需版本的类。
FlashingResourcesParser.AndroidInfo	A typedef for `Map<String, MultiMap<String, String>>` .
FlashingResourcesParser.Constraint	A filtering interface, intended to allow `FlashingResourcesParser` to ignore some resources that it otherwise might use
FlashingResourceUtil	This utility helps setting the appropriate version of artifacts so they can be flashed via `DeviceFlashPreparer` .
FoldableExpandingHandler	A `IModuleParameterHandler` expanding into more for each non-primary foldable configuration.
FoldableHandler	Generic foldable handler that can take the foldable parameters to create a specialized module.
FoldableModePreparer	A target preparer that can switch the foldable state of a device.
FolderBuildInfo	Concrete implementation of a `IFolderBuildInfo` .
FolderSaver	A `ITargetPreparer` that pulls directories off device, compresses and saves it into logging backend.
FormattedGeneratorReporter	Reporter that allows to generate reports in a particular format.
FreeDeviceState
FuseUtil	A helper class for FUSE operations.

G

GceAvdInfo	Structure to hold relevant data for a given GCE AVD instance.
GceAvdInfo.GceStatus
GceAvdInfo.LogFileEntry
GceManager	Helper that manages the GCE calls to start/stop and collect logs from GCE.
GceRemoteCmdFormatter	Utility class to format commands to reach a remote gce device.
GceRemoteCmdFormatter.ScpMode	SCP can be used to push or pull file depending of the structure of the args.
GceSshTunnelMonitor	Thread Monitor for the Gce ssh tunnel.
GcovCodeCoverageCollector	A `BaseDeviceMetricCollector` that will pull gcov coverage measurements off of the device and log them as test artifacts.
GcovKernelCodeCoverageCollector	A `BaseDeviceMetricCollector` that will pull gcov kernel coverage measurements out of debugfs and off of the device and then finally logs them as test artifacts.
GCSBucketUtil	File manager to download and upload files from Google Cloud Storage (GCS).
GCSBucketUtil.GCSFileMetadata	Simple wrapper for file info in GCS.
GCSCommon	Base class for Gcs operation like download and upload.
GCSConfigurationFactory	A `ConfigurationFactory` loads configs from Google Cloud Storage.
GCSConfigurationFactory.GCSConfigLoader	Extension of `ConfigurationFactory.ConfigLoader` that loads config from GCS, tracks the included configurations from one root config, and throws an exception on circular includes.
GCSConfigurationServer	Config server loads configs from Google Cloud Storage (GCS).
GCSDownloaderHelper	Downloader for GCS bucket that takes care of caching and resolving the global config.
GCSFileDownloader	File downloader to download file from google cloud storage (GCS).
GCSFileUploader	File uploader to upload file data to google cloud storage (GCS).
GCSHostResourceManager	Download host resource from GCS (Google cloud storage).
GcsRemoteFileResolver	Implementation of `IRemoteFileResolver` that allows downloading from a GCS bucket.
GenericLogcatEventParser <LogcatEventType>	Parse logcat input for events.
GenericLogcatEventParser.LogcatEvent	Struct to hold a logcat event with the event type and triggering logcat message
GetPreviousPassedHelper	Helper to get the previous passed test filters.
GkiDeviceFlashPreparer	A target preparer that flash the device with android common kernel generic image.
GlobalConfiguration	An `IGlobalConfiguration` implementation that stores the loaded config objects in a map
GlobalFilterGetter	Service implementation that returns the filters of a given invocation.
GlobalTestFilter	Filter options applied to the invocation.
GoogleApiClientUtil	Utils for create Google API client.
GoogleBenchmarkResultParser	Parses the results of Google Benchmark that run from shell, and return a map with all the results.
GoogleBenchmarkTest	A Test that runs a Google benchmark test package on given device.
GranularRetriableTestWrapper	A wrapper class works on the `IRemoteTest` to granulate the IRemoteTest in testcase level.
GranularRetriableTestWrapper.StartEndCollector	Class helper to catch missing run start and end.
GsiDeviceFlashPreparer	A target preparer that flashes the device with android generic system image.
GTest	A Test that runs a native test package on given device.
GTestBase	The base class of gTest
GTestListTestParser	A result parser for gtest dry run mode with "--gtest_list_tests" parameter.
GTestResultParser	Parses the 'raw output mode' results of native tests using GTest that run from shell, and informs a ITestInvocationListener of the results.
GTestXmlResultParser	Parses the 'xml output mode' results of native tests using GTest that run from shell, and informs a ITestRunListener of the results.

H

HarnessException	Base exception class for exception thrown within the harness.
HarnessRuntimeException
HeapHostMonitor	`AbstractHostMonitor` implementation that monitors the heap memory on the host and log it periodically to the history log.
HelloWorldMultiTargetPreparer	An example implementation of a `IMultiTargetPreparer` .
HistoryLogger	TF History Logger, special log that contains only some specific events.
HostGTest	A Test that runs a native test package.
HostMetric	This class represents a host metric sample to be reported.
HostOptions	Host options holder class.
HostStatsdMetricCollector	A `IMetricCollector` that collects statsd metrics from host side using statsd utility commands.
HostTest	A test runner for JUnit host based tests.
HostUtils	Implements some useful utility methods for running host tests.
HprofAllocSiteParser	Helper class to parse info from an Allocation Sites section of hprof reports.
HttpHelper	Contains helper methods for making http requests
HttpHelper.RequestRunnable	Runnable for making requests with `IRunUtil#runEscalatingTimedRetry(long, long, long, long, IRunnableResult)` .
HttpMultipartPost	Helper class for making multipart HTTP post requests.
HttpRemoteFileResolver	Implementation of `IRemoteFileResolver` that allows downloading remote file via http
HttpsRemoteFileResolver	Implementation of `IRemoteFileResolver` that allows downloading remote file via https

I

IAbi	Interface representing the ABI under test.
IAbiReceiver	A test that needs the ABI under test.
IAndroidDebugBridge	Interface definition for `AndroidDebugBridge` methods used in this package.
IAppBuildInfo	This interface is deprecated. Use `IBuildInfo` directly.
IAutoRetriableTest	Interface for an `IRemoteTest` that doesn't implement `ITestFilterReceiver` but still wishes to support auto-retry.
IBatteryInfo	The interface defining the interaction with a battery of a device.
IBatteryInfo.BatteryState	Describes the current battery charging state.
IBuildInfo	Holds information about the build under test.
IBuildInfo.BuildInfoProperties	Some properties that a `IBuildInfo` can have to tweak some handling of it.
IBuildProvider	Responsible for providing info regarding the build under test.
IBuildReceiver	A test that needs reference to the build under test.
IClusterClient	An interface for interacting with the TFC backend.
IClusterEvent	Interface for any cluster event to be uploaded to TFC.
IClusterEventUploader <T extends IClusterEvent >	Interface for ClusterEventUploader
IClusterOptions	An interface for getting cluster-related options.
ICommandOptions	Container for execution options for commands.
ICommandScheduler	A scheduler for running TradeFederation commands.
ICommandScheduler.IScheduledInvocationListener	Listener for invocation events when invocation completes.
ICompressionStrategy	An interface representing a compression algorithm that can be selected at runtime.
IConfigOptionValueTransformer	An interface for manipulating config option value
IConfigurableVirtualDevice	An interface to provide information about a possibly preconfigured virtual device info (host ip, host user, ports offset and etc.).
IConfiguration	Configuration information for a TradeFederation invocation.
IConfigurationFactory	Factory for creating `IConfiguration` s
IConfigurationReceiver	Simple interface to represent object that accepts an `IConfiguration` .
IConfigurationServer	An interface for config server.
ICredentialFactory	An interface for credential factory to create oauth2 `Credential` .
IDefaultObjectLoader	Interface for loading the default objects that should be part of our YAML configuration.
IDefaultObjectLoader.LoaderConfiguration	The loading configuration object to pass information to the loader.
IDeviceActionReceiver	Provides an API to receive device events.
IDeviceBuildInfo	A `IBuildInfo` that represents a complete Android device build and (optionally) its tests.
IDeviceBuildProvider	A `IBuildProvider` that uses information from a `ITestDevice` to retrieve a build.
IDeviceConfiguration	Device Configuration Holder Interface.
IDeviceFlasher	Flashes a device image on a device.
IDeviceFlasher.UserDataFlashOption	Enum of options for handling the userdata image
IDeviceManager	Interface for managing the set of available devices for testing.
IDeviceManager.IFastbootListener	A listener for fastboot state changes.
IDeviceMonitor	Interface for monitoring state of devices.
IDeviceMonitor.DeviceLister	A `ERROR(/Runnable)` -like class that should return the known devices and their states.
IDeviceRecovery	Interface for recovering a device that has gone offline.
IDeviceSelection	Interface for device selection criteria.
IDeviceSelection.BaseDeviceType
IDeviceStateMonitor	Provides facilities for monitoring the state of a `IDevice` .
IDeviceTest	Interface for object that needs a reference to a `ITestDevice` .
IDisableable	Interface that describes a Tradefed object that can be disabled.
IEmail	Interface for sending email.
IEmail.Message	Container for email message data.
IFileDownloader	Interface for downloading a remote file.
IFileEntry	Interface definition that provides simpler, mockable contract to `FileEntry` methods.
IFileResolverLoader	Loads implementations of `IRemoteFileResolver` .
IFileResolverLoader.ResolverLoadingException	Exception thrown if a resolver cannot be loaded or initialized.
IFlashingResourcesParser	Interface for providing required versions of auxiliary image files needed to flash a device.
IFlashingResourcesRetriever	Interface for retrieving auxiliary image files needed to flash a device.
IFolderBuildInfo	A simple abstract `IBuildInfo` whose build artifacts are containing in a local filesystem directory.
IFormatterGenerator	Interface describing a formatter for `SuiteResultHolder` .
IGlobalConfiguration	A class to encompass global configuration information for a single Trade Federation instance (encompassing any number of invocations of actual configurations).
IHarnessException	Description of the harness exception interface that will be implemented by harness exceptions.
IHostCleaner	Cleans up the host after the test run has finished.
IHostHealthAgent	An interface to emit host or device metrics.
IHostMonitor	Interface to dispatch host data
IHostMonitor.HostDataPoint	Generic class for data to be reported.
IHostMonitor.HostMetricType
IHostOptions	Host options holder interface.
IHostOptions.PermitLimitType	Enum describing the possible permit limiters
IHostResourceManager	Interface to manager host resource.
IHttpHelper	Helper methods for performing http requests.
IHttpHelper.DataSizeException
IInvocationContext	Holds information about the Invocation for the tests to access if needed.
IInvocationContext.TimingEvent
IInvocationContextReceiver	A test that needs reference to the context of the invocation.
IInvocationExecution	Interface describing the actions that will be done as part of an invocation.
IKeyStoreClient	Interface to access a key store for password or sensitive data.
IKeyStoreFactory	Factory for creating `IKeyStoreClient` .
ILabPreparer	Marker interface for lab preparers See `ITargetPreparer` for a description of what these interfaces are intended.
ILeveledLogOutput	Classes which implement this interface provides methods that deal with outputting log messages.
ILogcatReceiver	A class that provides the output of a device's logcat as an `InputStreamSource` .
ILogRegistry	An interface for a `ILogOutput` singleton logger that multiplexes and manages different loggers.
ILogRegistry.EventType	Events that are useful to be logged
ILogSaver	Classes which implement this interface provide methods for storing logs to a central location.
ILogSaverListener	Allows for `ITestInvocationListener` s to listen for when log files are saved.
IManagedTestDevice	A ITestDevice whose lifecycle is managed.
IManagedTestDevice.DeviceEventResponse	Container for a response to a `IManagedTestDevice#handleAllocationEvent(DeviceEvent)` call
IManagedTestDeviceFactory	Creator interface for `IManagedTestDevice` s
IMetricCollector	This interface will be added as a decorator when reporting tests results in order to collect matching metrics.
IMetricCollectorReceiver	Interface for `IRemoteTest` s to implement if they need to get the list of `IMetricCollector` s for the test run.
IMoblyYamlResultHandler	Interface of mobly yaml result handler.
IMoblyYamlResultHandler.ITestResult	Interface of mobly yaml result
IModuleController	Interface for controlling if a module should be executed or not.
IModuleController.RunStrategy	Enum describing how the module should be executed.
IModuleParameterHandler	The interface for parameters of suites modules.
IMultiDeviceRecovery	Interface for recovering multiple offline devices.
IMultiDeviceTest	This interface is deprecated. This interface is kept temporarily for compatibility but is not actually used anymore. Please do not implement it.
IMultiTargetPreparer	Prepares the test environment for several devices together.
INativeDevice	Provides an reliable and slightly higher level API to a ddmlib `IDevice` .
INativeDeviceTest	Interface for object that needs a reference to a `INativeDevice` .
InfraErrorIdentifier	Error Identifiers from Trade Federation infra, and dependent infra (like Build infra).
InputStreamSource	This interface basically wraps an `ERROR(/InputStream)` to make it clonable.
InstallAllTestZipAppsSetup	A `ITargetPreparer` that installs all apps in a test zip.
InstallApexModuleTargetPreparer
InstallApkSetup	A `ITargetPreparer` that installs one or more apks located on the filesystem.
InstallBuildEnvApkSetup	A `ITargetPreparer` that installs one or more test apks from an Android platform build env.
InstalledInstrumentationsTest	Runs all instrumentation found on current device.
InstantAppHandler	Handler for `ModuleParameters#INSTANT_APP` .
InstrumentationPreparer	A `ITargetPreparer` that runs instrumentation
InstrumentationTest	A Test that runs an instrumentation test package on given device.
InvocationContext	Generic implementation of a `IInvocationContext` .
InvocationExecution	Class that describes all the invocation steps: build download, target_prep, run tests, clean up.
InvocationLocal <T>	This class provides invocation-scope variables.
InvocationMetricLogger	A utility class for an invocation to log some metrics.
InvocationMetricLogger.InvocationGroupMetricKey	Grouping allows to log several groups under a same key.
InvocationMetricLogger.InvocationMetricKey	Some special named key that we will always populate for the invocation.
InvocationStatus	A class to store invocation status.
InvocationStatus	A helper enum to represent the invocation status
InvocationSummaryHelper	Helper class for gathering and reporting `TestSummary` for set of listeners
InvocationToJUnitResultForwarder	A class that listens to `ITestInvocationListener` events and forwards them to a `TestListener` .
IPostProcessor	Post processors is a Trade Federation object meant to allow the processing of metrics and logs AFTER the tests and BEFORE result reporting.
IRemoteFeature	Interface describing a feature in Tradefed that can be executed based on the request.
IRemoteFileResolver	Interface for objects that can resolve a remote file into a local one.
IRemoteFileResolver.RemoteFileResolverArgs	The args passed to the resolvers
IRemoteFileResolver.ResolvedFile	Class holding information about the resolved file and some metadata.
IRemoteScheduledListenersFeature	Extension of `IRemoteFeature` to support passing in `IScheduledInvocationListener` s.
IRemoteTest	A test that reports results directly to a `ITestInvocationListener` .
IReportNotExecuted	In case of an incomplete execution, `IRemoteTest` that implements this interface may report their non-executed tests for improved reporting.
IRescheduler	Interface for rescheduling a config for future execution.
IResourceMetricCollector	The interface for user to implement customized resource collectors.
IRestApiHelper	A helper interface for performing REST API calls.
IResumableTest	This interface is deprecated. No need for this anymore
IRetryDecision	Interface driving the retry decision and applying the filter on the class for more targeted retry.
IRuntimeHintProvider
IRunUtil	Interface for running timed operations and system commands.
IRunUtil.EnvPriority	Enum that defines whether setting or unsetting a particular env.
IRunUtil.IRunnableResult	An interface for asynchronously executing an operation that returns a boolean status.
ISandbox	Interface defining a sandbox that can be used to run an invocation.
ISandboxFactory	Factory for creating `ISandbox` .
ISetOptionReceiver	Implementation of this interface should have an `Option` with a "set-option" name linked to `HostTest#SET_OPTION_NAME` .
IShardableListener	A `ITestInvocationListener` that can be sharded.
IShardableTest	A `IRemoteTest` that can be split into separately executable sub-tests.
IShardHelper	Interface of an object that describes the sharding strategy to adopt for a configuration.
IsolatedHostTest	Implements a TradeFed runner that uses a subprocess to execute the tests in a low-dependency environment instead of executing them on the main process.
ISupportGranularResults	Interface specifying whether a `ITestInvocationListener` supports receiving the granular results or not.
ISystemStatusChecker	An checker that performs checks on system status and returns a boolean to indicate if the system is in an expected state.
ISystemStatusCheckerReceiver	A `IRemoteTest` that requires access to the `ISystemStatusChecker` from the configuration.
ITargetCleaner	This interface is deprecated. tearDown has been moved to the base ITargetPreparer interface.
ITargetPreparer	Prepares the test environment for the test run.
ITerribleFailureHandler	An interface to handle terrible failures from `LogUtil.CLog.wtf(String, Throwable)`
ITestAnnotationFilterReceiver	A runner that can filter which tests to run based on annotations.
ITestCollector	Provides support for test collection; when set, test runner must perform a dry run to collect test cases without actually executing them.
ITestDevice	Provides an reliable and slightly higher level API to a ddmlib `IDevice` .
ITestDevice.ApexInfo	A simple struct class to store information about a single APEX
ITestDevice.MountPointInfo	A simple struct class to store information about a single mountpoint
ITestDevice.RecoveryMode
ITestFileFilterReceiver	A runner that can receive a file specifying which tests to run and/or not to run.
ITestFilterReceiver	A runner that can filter which tests to run.
ITestInformationReceiver	Interface to receive the `TestInformation` for some classes.
ITestInvocation	Handles one TradeFederation test invocation.
ITestInvocation.ExitInformation	Represents some exit information for an invocation.
ITestInvocationListener	Listener for test results from the test invocation.
ITestLifeCycleReceiver	Receives event notifications during instrumentation test runs.
ITestLogger	An entity that can perform logging of data streams of various types.
ITestLoggerReceiver	An entity that can be injected with an `ITestLogger` instance so that it can be used for logging purposes.
ITestsPool	Interface describing a pool of tests that we can access and run
ITestSuite	Abstract class used to run Test Suite.
ITestSuite.MultiDeviceModuleStrategy
ITestSuiteResultLoader	Interface describing an helper to load previous results in a way that can be re-run.
ITestSummaryListener	Interface that allows `ITestInvocationListener` to exchange some limited information via summaries.
ITestsZipInstaller	Installs tests from a tests zip file (as outputted by the build system) on a device.
ITokenProvider	Interface describing an object that can provide the tokens of a particular device.
ITokenRequest	Interface a `IRemoteTest` can implement to expose the fact that it requires a device with a special token.

J

JarHostTest	Test runner for host-side JUnit tests.
JarHostTest.HostTestListener	Wrapper listener that forwards all events except testRunStarted() and testRunEnded() to the embedded listener.
JavaCodeCoverageCollector	A `BaseDeviceMetricCollector` that will pull Java coverage measurements off of the device and log them as test artifacts.
JavaCodeCoverageFlusher	A utility class that resets and forces a flush of Java code coverage measurements from processes running on the device.
JSONFileKeyStoreClient	A sample implementation where a local JSON file acts a key store.
JSONFileKeyStoreFactory	Implementation of a JSON KeyStore Factory, which provides a `JSONFileKeyStoreClient` for accessing a JSON Key Store File.
JsonHttpTestResultReporter	A result reporter that encode test metrics results and branch, device info into JSON and POST into an HTTP service endpoint
JUnit4ResultForwarder	Result forwarder from JUnit4 Runner.
JUnit4TestFilter	Helper Class that provides the filtering for JUnit4 runner by extending the `Filter` .
JUnitRunUtil	A helper class for directing a `IRemoteTest#run(TestInformation, ITestInvocationListener)` call to a `Test#run(TestResult)` call.
JUnitToInvocationResultForwarder	A class that listens to `TestListener` events and forwards them to an `ITestInvocationListener` .
JUnitXmlParser	Parser that extracts test result data from JUnit results stored in ant's XMLJUnitResultFormatter and forwards it to a ITestInvocationListener.

K

KeyguardControllerState	A container for the keyguard states.
KeyguardStatusChecker	Checks the keyguard status after module execution.
KeyStoreException	Thrown when a fatal key store error happens.
KillExistingEmulatorPreparer	A `ITargetPreparer` that shuts down a running emulator.
KnownFailurePreparer	Target preparer to skip retrying known failure.

L

LabResourceDeviceMonitor	The lab resource monitor which initializes/manages the gRPC server for LabResourceService.
LargeOutputReceiver	A class designed to help run long running commands collect output.
LastShardDetector	When running local sharding, sometimes we only want to execute some actions when the last shard reaches `invocationEnded(long)` .
LaunchCvdHelper	Utility helper to control Launch_cvd in the Cuttlefish VM.
LeakedThreadStatusChecker	Status checker to ensure a module does not leak a running Thread.
LegacySubprocessResultsReporter	A frozen implementation of the subprocess results reporter which should remain compatible with earlier versions of TF/CTS (eg 8+), despite changes in its superclass.
ListInstrumentationParser	A `IShellOutputReceiver` that parses the output of a 'pm list instrumentation' query
ListInstrumentationParser.InstrumentationTarget
LocalAndroidVirtualDevice	The class for local virtual devices running on TradeFed host.
LocalAppBuildProvider	A `IBuildProvider` that constructs a `IBuildInfo` based on a provided local path
LocalDeveloper	Detects and returns whether this is a local developer running Tradefed.
LocalDeviceBuildProvider	A `IBuildProvider` that constructs a `IDeviceBuildInfo` based on a provided filesystem directory path.
LocalEmulatorLaunch	A TargetPreparer that launches an emulator locally from an android build environment.
LocalEmulatorSnapshot	A TargetPreparer intended for generating a clean emulator snapshot from a android build/development environment
LocalFileHeader	LocalFileHeader is a class containing the information of a file/folder inside a zip file.
LocalFileResolver	Implementation of `IRemoteFileResolver` that allows linking local files
LocalFolderBuildProvider	A `IBuildProvider` that constructs a `IFolderBuildInfo` based on a provided local path
LocalHostResourceManager	Manager host resource.
LocalPool	Implementation of a pool of local tests
LocalRunInstructionBuilder	Utility to compile the instruction to run test locally.
LockSettingsBaselineSetter	A setter to remove screen lock settings.
LogcatCrashResultForwarder	Special listener: on failures (instrumentation process crashing) it will attempt to extract from the logcat the crash and adds it to the failure message associated with the test.
LogcatEventParser
LogcatEventType	Event types for `LogcatEventParser` .
LogcatOnFailureCollector	Collector that will capture and log a logcat when a test case fails.
LogcatReceiver	Class that collects logcat in background.
LogcatTimingMetricCollector	A metric collector that collects timing information (eg user switch time) from logcat during one or multiple repeated tests by using given regex patterns to parse start and end signals of an event from logcat lines.
LogDataType	Represents the data type of log data.
LogFile	Class to hold the metadata for a saved log file.
LogFileSaver	A helper for `ITestInvocationListener` 's that will save log data to a file
LogReceiver
LogRegistry	A `ILogRegistry` implementation that multiplexes and manages different loggers, using the appropriate one based on the `ERROR(/ThreadGroup)` of the thread making the call.
LogSaverResultForwarder	A `ResultForwarder` for saving logs with the global file saver.
LogUtil	A logging utility class.
LogUtil.CLog	A shim class for `Log` that automatically uses the simple classname of the caller as the log tag

M

MainlineModuleHandler	A simple handler class for Mainline Modules that creates a InstallApexModuleTargetPreparer and injects the dynamic link into it based on the given mainline modules to automatically retrieve those modules.
MainlineTestModuleController	Base class for a module controller to run tests based on the preloaded mainline modules on the device under test.
ManagedRemoteDevice	A device running inside a virtual machine that we manage remotely via a Tradefed instance inside the VM.
ManagedTestDeviceFactory	Factory to create the different kind of devices that can be monitored by Tf
MaxSdkModuleController	Base class for a module controller to not run tests on versions above a specified SDK version number.
MergedZipEntryCollection	Merge individual zip entries in a large zip file into blocks to minimize the download attempts.
MergeMultiBuildTargetPreparer	A `IMultiTargetPreparer` that allows to pass information from one build to another by naming them and the file key to copy to the other build.
MergeStrategy	Describes how the results should be aggregated when multiple attempts are present.
MetricFilePostProcessor	Used for uploading the metrics log file collected during the test and run level.
MetricOption	Annotation for test methods annotated with `@Test` , or if the annotation is part of the annotation list of `TestDescription` that allows to specify some extra parameters useful for: Tuning the behavior of the collectors, filtering some methods.
MetricsXMLResultReporter	MetricsXMLResultReporter writes test metrics and run metrics to an XML file in a folder specified by metrics-folder parameter at the invocationEnded phase of the test.
MetricTestCase	Extension of `TestCase` that allows to log metrics when running as part of TradeFed.
MetricTestCase.LogHolder	Structure to hold a log file to be reported.
MetricUtil	Utility class for pulling metrics from pushed statsd configurations.
MetricUtility	Contains common utility methods for storing the test metrics, aggregating the metrics in similar tests and writing the metrics to a file.
MinApiLevelModuleController	Base class for a module controller to not run tests when it below a specified API Level.
MinSdkModuleController	Base class for a module controller to not run tests on versions below a specified SDK version number.
MixImageZipPreparer	An `IMultiTargetPreparer` that mixes a system build's images in a device build.
MixKernelTargetPreparer	A `ITargetPreparer` that allows to mix a kernel image with the device image.
MoblyBinaryHostTest	Host test meant to run a mobly python binary file from the Android Build system (Soong)
MoblyYamlResultControllerInfoHandler	Mobly yaml result 'Controller Info' element handler.
MoblyYamlResultControllerInfoHandler.ControllerInfo
MoblyYamlResultControllerInfoHandler.ControllerInfo.Builder
MoblyYamlResultHandlerFactory	Mobly yaml result handler factory which generates appropriate handler based on result type.
MoblyYamlResultHandlerFactory.InvalidResultTypeException
MoblyYamlResultHandlerFactory.Type
MoblyYamlResultParser	Mobly yaml test results parser.
MoblyYamlResultRecordHandler	Mobly yaml result 'Record' element handler.
MoblyYamlResultRecordHandler.Record
MoblyYamlResultRecordHandler.Record.Builder
MoblyYamlResultRecordHandler.RecordResult
MoblyYamlResultSummaryHandler	Mobly yaml result 'Summary' element handler.
MoblyYamlResultSummaryHandler.Summary
MoblyYamlResultSummaryHandler.Summary.Builder
MoblyYamlResultTestNameListHandler	Mobly yaml result 'Test Name List' element handler.
MoblyYamlResultTestNameListHandler.TestNameList
MoblyYamlResultTestNameListHandler.TestNameList.Builder
MoblyYamlResultUserDataHandler	Mobly yaml result 'User Data' element handler.
MoblyYamlResultUserDataHandler.UserData
MoblyYamlResultUserDataHandler.UserData.Builder
ModifiedFilesParser	Class responsible to parse and extract information from modified_files.json.
ModuleDefinition	Container for the test run configuration.
ModuleListener	Listener attached to each `IRemoteTest` of each module in order to collect the list of results.
ModuleLogcatCollector	Version of logcat collector but for module.
ModuleMerger	Helper class for operation related to merging `ITestSuite` and `ModuleDefinition` after a split.
ModuleOemTargetPreparer
ModuleParameters	Special values associated with the suite "parameter" keys in the metadata of each module.
ModuleParametersHelper	Helper to get the `IModuleParameterHandler` associated with the parameter.
ModulePusher
ModulePusher.ModulePushError	Fatal error during Mainline module push.
ModuleSplitter	Helper to split a list of modules represented by `IConfiguration` into a list of execution units represented by `ModuleDefinition` .
MultiFailureDescription	Collect multiple `FailureDescription` in one holder.
MultiMap <K, V>	A `ERROR(/Map)` that supports multiple values per key.

N

NameMangleListener	A proxy listener to translate test method, class, and package names as results are reported.
NativeBenchmarkTest	A Test that runs a native benchmark test executable on given device.
NativeBenchmarkTestParser	A `IShellOutputReceiver` that parses the benchmark test data output, collecting metrics on average time per operation.
NativeBridgeModuleController	A module controller to check if a device support native bridge.
NativeCodeCoverageFlusher	A utility class that clears native coverage measurements and forces a flush of native coverage data from processes on the device.
NativeDevice	Default implementation of a `ITestDevice` Non-full stack android devices.
NativeDevice.AdbAction	A `ERROR(DeviceAction/com.android.tradefed.device.NativeDevice.DeviceAction DeviceAction)` for running a OS 'adb ....' command.
NativeDevice.AdbShellAction
NativeDevice.RebootDeviceAction	`ERROR(DeviceAction/com.android.tradefed.device.NativeDevice.DeviceAction DeviceAction)` for rebooting a device.
NativeDevice.RebootMode	A mode of a reboot.
NativeDeviceStateMonitor	Helper class for monitoring the state of a `IDevice` with no framework support.
NativeLeakCollector	A `ITargetPreparer` that runs 'dumpsys meminfo --unreachable -a' to identify the unreachable native memory currently held by each process.
NativeStressTest	A Test that runs a native stress test executable on given device.
NativeStressTestParser	A `IShellOutputReceiver` that parses the stress test data output, collecting metrics on number of iterations complete and average time per iteration.
NegativeHandler	Handler that specify that nothing should be done and the parameter should not create any extra module.
NestedDeviceStateMonitor	Device state monitor that executes extra checks on nested device to accommodate the specifics of the virtualized environment.
NestedRemoteDevice	Representation of the device running inside a remote Cuttlefish VM.
NetworkNotAvailableException	Thrown when a device is not able to connect to network for testing.
NoApkTestSkipper	Special preparer that allows to skip an invocation completely (preparation and tests) if there are no apks to tests.
NoDeviceException	Thrown when there's no device to execute a given command.
NoisyDryRunTest	Run noisy dry run on a command file.
NoOpConfigOptionValueTransformer	An no-op `IConfigOptionValueTransformer`
NotMultiAbiHandler	Special handler that notify the `SuiteModuleLoader` that the secondary abi should not create a module.
NullDevice	A placeholder `IDevice` used by `DeviceManager` to allocate when `IDeviceSelection#nullDeviceRequested()` is `true`

O

OpenObjectLoader	Loader for the default objects available in AOSP.
Option	Annotates a field as representing a `IConfiguration` option.
Option.Importance
OptionClass	Annotates a class as representing a `IConfiguration` object.
OptionCopier	A helper class that can copy `Option` field values with same names from one object to another.
OptionDef	Holds the details of an `Option` .
OptionFetcher	Helper to get the test options from the parent process.
OptionNotAllowedException	Specific `ConfigurationException` when an option is not allowed to be passed in the command line.
OptionSetter	Populates `Option` fields.
OptionSetter.OptionFieldsForName	Container for the list of option fields with given name.
OptionUpdateRule	Controls the behavior when an option is specified multiple times.
OtaDeviceBuildInfo	A `IDeviceBuildInfo` used for over-the-air update testing.
OtatoolsBuildInfo	An `IBuildInfo` that contains otatools artifacts.
OtaZipfileBuildProvider	Provides a `IBuildInfo` based on a local OTA zip file.
OxygenClient	A class that manages the use of Oxygen client binary to lease or release Oxygen device.
OxygenUtil	Utility to interact with Oxygen service.

P

PackageInfo	Container for an application's package info parsed from device.
PackageInstalledModuleController	Module controller to not run tests when the device has not got the given packages installed.
Pair <A, B>	Define our own Pair class which contains two objects.
PairingMultiTargetPreparer	A multi-target preparer helps make Bluetooth pairing (and connection) between two devices.
ParallelDeviceExecutor <V>	Wrapper of `ERROR(/ExecutorService)` to execute a function in parallel.
ParentSandboxInvocationExecution	Version of `InvocationExecution` for the parent invocation special actions when running a sandbox.
ParentShardReplicate	Replicate a setup for one device to all other devices that will be part of sharding.
PassingTestFileReporter	A `ITestInvocationListener` that saves the list of passing test cases to a test file
PerfettoGenericPostProcessor	A post processor that processes text/binary metric perfetto proto file into key-value pairs by recursively expanding the proto messages and fields with string values until the field with numeric value is encountered.
PerfettoGenericPostProcessor.AlternativeParseFormat
PerfettoGenericPostProcessor.METRIC_FILE_FORMAT
PerfettoPreparer	Perfetto preparer pushes the config file in to the device at a standard location to which perfetto have access to.
PerfettoPullerMetricCollector	Base implementation of `FilePullerDeviceMetricCollector` that allows pulling the perfetto files from the device and collect the metrics from it.
PerfettoPullerMetricCollector.METRIC_FILE_FORMAT
PerfettoTraceRecorder	A utility class for recording perfetto trace on a `ITestDevice` .
PrettyPrintDelimiter	Helper utility that helps to print delimited message that stands out.
PrettyTestEventLogger	Logger matching the events and logging them in order to make it easier to debug.
ProcessInfo	Used to store process related(USER, PID, NAME, START TIME IN SECOND SINCE EPOCH) information.
ProfileParameterHandler	Base parameter handler for any profile user.
ProfileTargetPreparer	Base class for setting up target preparer for any profile user `android.os.usertype.profile.XXX` .
PropertyChanger	A utility class for changing (or adding) items in an Android property file
ProtoResultParser	Parser for the Tradefed results proto format.
ProtoResultParser.TestLevel	Enumeration representing the current level of the proto being processed.
ProtoResultReporter	Result reporter build a `TestRecord` protobuf with all the results inside.
ProtoUtil	Utility methods for dealing with protobuf messages type-agnostically.
ProxyConfiguration	Object that allows pointing to a remote configuration to execute.
PsParser	Utility used to parse(USER,PID and NAME) from the "ps" command output
PtsBotTest	Run PTS-bot tests.
PushFileInvoker	This class is deprecated. Use `PushFilePreparer` instead
PushFilePreparer	A `ITargetPreparer` that attempts to push any number of files from any host path to any device path.
PythonBinaryHostTest	Host test meant to run a python binary file from the Android Build system (Soong) The test runner supports include-filter and exclude-filter.
PythonBinaryHostTest.PythonForwarder	Result forwarder to replace the run name by the binary name.
PythonUnitTestResultParser	Interprets the output of tests run with Python's unittest framework and translates it into calls on a series of `ITestInvocationListener` s.
PythonUnitTestRunner	This class is deprecated. Use `PythonBinaryHostTest` instead.
PythonVirtualenvHelper	A helper class for activating Python 3 virtual environment.
PythonVirtualenvPreparer	Sets up a Python virtualenv on the host and installs packages.

Q

QuotationAwareTokenizer

R

RebootReasonCollector	Collector that collects device reboot during the test run and report them by reason and counts.
RebootTargetPreparer	Target preparer that reboots the device.
RecoveryLogPreparer	A target preparer used to collect logs before recovery.
RegexTrie <V>	The RegexTrie is a trie where each stored segment of the key is a regex `ERROR(/Pattern)` .
RemoteAndroidDevice	Implementation of a `ITestDevice` for a full stack android device connected via adb connect.
RemoteAndroidVirtualDevice	Extends `RemoteAndroidDevice` behavior for a full stack android device running in the Google Compute Engine (Gce).
RemoteAvdIDevice	A placeholder `IDevice` used by `DeviceManager` to allocate when `DeviceSelectionOptions.gceDeviceRequested()` is `true`
RemoteFileResolver	A simple class that allows one to load files from a variety of places using URIs and the service provider functionality.
RemoteFileUtil	Utility class to handle file from a remote instance
RemoteInvocationExecution	Implementation of `InvocationExecution` that drives a remote execution.
RemoteInvocationExecution.FileOptionValueTransformer
RemoteSshUtil	Utility to execute ssh commands on remote instances.
RemoteTestTimeOutEnforcer	Listeners that allows to check the execution time of a given test config and fail it if it goes over a given timeout.
RemoteZip	Utilities to unzip individual files inside a remote zip file.
RemoveSystemAppPreparer	A `ITargetPreparer` for removing an apk from the system partition before a test run.
ReportPassedTests	Report in a file possible filters to exclude passed test.
ResolvePartialDownload	Resolve a partial download request.
ResourceMetricUtil	Utility functions for composing metrics.
ResourceUtil	Utility for reading configuration resources.
RestApiHelper	A helper class for performing REST API calls.
RestartSystemServerTargetPreparer	Target preparer that restarts the system server without rebooting the device.
ResultAggregator	Special forwarder that aggregates the results when needed, based on the retry strategy that was taken.
ResultAndLogForwarder	Forwarder for results and logs events.
ResultForwarder	A `ITestInvocationListener` that forwards invocation results to a list of other listeners.
ResultsPlayer	Special runner that replays the results given to it.
RetentionFileSaver	Helper class for creating a .retention file in a directory.
RetryConfigurationFactory	Factory that handles retrying a command.
RetryLogSaverResultForwarder	Forwarder that also handles passing the current attempt we are at.
RetryPreparationDecision	A Class to describe the decisions about whether or not to retry preparation and to fail the module run.
RetryRescheduler	A special runner that allows to reschedule a previous run tests that failed or where not executed.
RetryRescheduler.RetryType	The types of the tests that can be retried.
RetryResultForwarder	An Extension of `ResultForwarder` that always push to a given attempt number.
RetryResultHelper	Helper class to determine which module or test should run or not.
RetryStatistics	Structure holding the statistics for a retry session of one `IRemoteTest` .
RetryStrategy	The Retry Strategy to be used when re-running some tests.
RootTargetPreparer	Target preparer that performs "adb root" or "adb unroot" based on option "force-root".
RunAftersWithInfo
RunBeforesWithInfo
RunCommandTargetPreparer
RunConfigDeviceRecovery	Generic base `IMultiDeviceRecovery` to run a tradefed configuration to do the recovery step.
RunHostCommandTargetPreparer	Target preparer to run arbitrary host commands before and after running the test.
RunHostScriptTargetPreparer	Target preparer which executes a script before running a test.
RunInterruptedException	Thrown when a run operation is interrupted by an external request.
RunNotifierWrapper	Wrapper of `RunNotifier` so we can carry the `DeviceNotAvailableException` .
RunOnCloneProfileParameterHandler
RunOnCloneProfileTargetPreparer
RunOnSdkSandboxHandler	Handler for `ModuleParameters#RUN_ON_SDK_SANDBOX` .
RunOnSdkSandboxTargetPreparer	An `ITargetPreparer` to marks that tests should run in the sdk sandbox.
RunOnSecondaryUserParameterHandler
RunOnSecondaryUserTargetPreparer	An `ITargetPreparer` that creates a secondary user in setup, and marks that tests should be run in that user.
RunOnSystemUserTargetPreparer	An `ITargetPreparer` that marks that tests should be run on the user (rather than the current user).
RunOnWorkProfileParameterHandler
RunOnWorkProfileTargetPreparer	An `ITargetPreparer` that creates a work profile in setup, and marks that tests should be run in that user.
RuntimeRestartCollector	Collector that collects timestamps of runtime restarts (system server crashes) during the test run, if any.
RunUtil	A collection of helper methods for executing operations.
RustBenchmarkResultParser	Interprets the output of tests run with Criterion benchmarking framework and translates it into calls on a series of `ITestInvocationListener` s.
RustBinaryHostTest	Host test meant to run a rust binary file from the Android Build system (Soong)
RustBinaryTest	A Test that runs a rust binary on given device.
RustTestBase	Base class of RustBinaryHostTest and RustBinaryTest
RustTestBase.EnvPair
RustTestBase.Invocation
RustTestResultParser	Interprets the output of tests run with Rust's unittest framework and translates it into calls on a series of `ITestInvocationListener` s.

S

SandboxConfigDump	Runner class that creates a `IConfiguration` based on a command line and dump it to a file.
SandboxConfigDump.DumpCmd
SandboxConfigurationException	Special Configuration Exception coming from the Sandbox setup.
SandboxConfigurationFactory	Special Configuration factory to handle creation of configurations for Sandboxing purpose.
SandboxConfigUtil	A utility class for managing `IConfiguration` when doing sandboxing.
SandboxedInvocationExecution	Special sandbox execution of the invocation: This is the InvocationExection for when we are inside the sandbox running the command.
SandboxInvocationRunner	Run the tests associated with the invocation in the sandbox.
SandboxOptions	Class that can receive and provide options to a `ISandbox` .
ScreenshotOnFailureCollector	Collector that will capture and log a screenshot when a test case fails.
Sdk28ModuleController	A module controller to check if a device is on SDK 28 (Android 9) or above.
Sdk29ModuleController	Only run tests if the device under test is SDK version 29 or above.
Sdk30ModuleController	Only run tests if the device under test is SDK version 30 or above.
Sdk31ModuleController	Only run tests if the device under test is SDK version 31 or above.
Sdk32ModuleController	Only run tests if the device under test is SDK version 32 or above.
Sdk33ModuleController	Only run tests if the device under test is SDK version 33 or above.
SecondaryUserHandler	Handler for `ModuleParameters#SECONDARY_USER` .
SecondaryUserOnDefaultDisplayHandler	Handler for `ModuleParameters#SECONDARY_USER_ON_DEFAULT_DISPLAY` .
SecondaryUserOnSecondaryDisplayHandler	Handler for `ModuleParameters#SECONDARY_USER_ON_SECONDARY_DISPLAY` .
SemaphoreTokenTargetPreparer	This is a preparer used to use token to serialize test excution in tradefed host.
SerializationUtil	Utility to serialize/deserialize an object that implements `ERROR(/Serializable)` .
ServiceAccountKeyCredentialFactory	A credential factory to create service account key based oauth `Credential` .
SettingsBaselineSetter	A common setter to handle device baseline settings via ITestDevice.setSetting.
ShardBuildCloner	Helper class that handles cloning a build info from the command line.
ShardHelper	Helper class that handles creating the shards and scheduling them for an invocation.
ShardListener	A `ITestInvocationListener` that collects results from a invocation shard (aka an invocation split to run on multiple resources in parallel), and forwards them to another listener.
ShardMainResultForwarder	A `ResultForwarder` that combines the results of a sharded test invocations.
ShellOutputReceiverStream	Utility subclass of OutputStream that writes into an IShellOutputReceiver.
ShellStatusChecker	Check if the shell status is as expected before and after a module run.
ShippingApiLevelModuleController	Run tests if the device meets the following conditions: If `min-api-level` is defined: The device shipped with the `min-api-level` or later.
ShowmapPullerMetricCollector	Base implementation of `FilePullerDeviceMetricCollector` that allows pulling the showmap files from the device and collect the metrics from it.
SideloadOtaTargetPreparer	A target preparer that performs sideload of a specified OTA package, applies the package, waits for device to boot up, and injects the device build properties to use as build info This target preparer assumes that the device will be in regular adb mode when started, and will ensure that the device exits in the same mode but with the newer build applied.
SimpleFileLogger	A `ILeveledLogOutput` that directs log messages to stdout and to a single log file.
SimplePerfResult	Object to hold all simpleperf test results
SimplePerfStatResultParser	A utility class to parse simpleperf result.
SimplePerfUtil	Utility class to dispatch simple command and collect results
SimplePerfUtil.SimplePerfType	Enum of simpleperf command options
SimpleStats	A small utility class that calculates a few statistical measures given a numerical dataset.
SizeLimitedOutputStream	A thread safe file backed `ERROR(/OutputStream)` that limits the maximum amount of data that can be written.
SkipHWASanModuleController	Base class for a module controller to not run tests on HWASan builds.
Sl4aBluetoothUtil	A utility class provides Bluetooth operations on one or two devices using SL4A
Sl4aBluetoothUtil.BluetoothAccessLevel	Enums for Bluetooth device access level which are based on `BluetoothDevice.java`
Sl4aBluetoothUtil.BluetoothConnectionState	Enums for Bluetooth connection states which are based on `BluetoothProfile.java`
Sl4aBluetoothUtil.BluetoothPriorityLevel	Enums for Bluetooth profile priority level which are based on `BluetoothProfile.java`
Sl4aBluetoothUtil.BluetoothProfile	Enums for Bluetooth profiles which are based on `BluetoothProfile.java`
Sl4aClient	Sl4A client to interact via RPC with SL4A scripting layer.
Sl4aEventDispatcher	Event dispatcher polls for event and queue them by name to be queried.
Sl4aEventDispatcher.EventSl4aObject	Object returned by the event poller.
SnapshotInputStreamSource	A File-backed InputStreamSource.
SparseImageUtil	Utility to unsparse sparse images.
SparseImageUtil.SparseInputStream	SparseInputStream read from upstream and detects the data format.
StatsdBeforeAfterGaugeMetricPostProcessor	A post processor that processes gauge metrics collected in a "before/after" approach, ie
StatsdEventMetricPostProcessor	A post processor that processes event metrics in statsd reports into key-value pairs, using the formatters specified on the processor.
StatsdGenericPostProcessor	A post processor that processes binary proto statsd reports into key-value pairs by expanding the report as a tree structure.
StatusCheckerResult	Contains the result of a `ISystemStatusChecker` execution.
StatusCheckerResult.CheckStatus
StdoutLogger	A `ILeveledLogOutput` that directs log messages to stdout.
StopServicesSetup	A `ITargetPreparer` that stops services on the device.
StreamProtoReceiver	A receiver that translates proto TestRecord received into Tradefed events.
StreamProtoResultReporter	An implementation of `ProtoResultReporter`
StreamUtil	Utility class for managing input streams.
StrictShardHelper	Sharding strategy to create strict shards that do not report together,
StringEscapeUtils	Utility class for escaping strings for specific formats.
StringUtil	Utility class for escaping strings for common string manipulation.
StubBuildProvider	No-op empty implementation of a `IBuildProvider` .
StubDevice	Stub placeholder implementation of a `IDevice` .
StubKeyStoreClient	Default stub implementation for KeyStore Client.
StubKeyStoreFactory	Default stub implementation for KeyStore Factory
StubLocalAndroidVirtualDevice	A placeholder `IDevice` used by `DeviceManager` to allocate when `DeviceSelectionOptions.localVirtualDeviceRequested()` is `true`
StubMultiTargetPreparer	Placeholder empty implementation of a `IMultiTargetPreparer` .
StubTargetPreparer	Placeholder empty implementation of a `ITargetPreparer` .
StubTest	No-op empty test implementation.
StubTestRunListener	Stub implementation of `ITestRunListener`
SubprocessCommandException	A subprocess command failed to run.
SubprocessConfigBuilder	Build a wrapper TF config XML for an existing TF config.
SubprocessEventHelper	Helper to serialize/deserialize the events to be passed to the log.
SubprocessEventHelper.BaseTestEventInfo	Base Helper for TestIgnored information.
SubprocessEventHelper.FailedTestEventInfo	Helper for testFailed information.
SubprocessEventHelper.InvocationEndedEventInfo	Helper for invocation ended information.
SubprocessEventHelper.InvocationFailedEventInfo	Helper for InvocationFailed information.
SubprocessEventHelper.InvocationStartedEventInfo	Helper for invocation started information.
SubprocessEventHelper.LogAssociationEventInfo	Helper for logAssociation information.
SubprocessEventHelper.TestEndedEventInfo	Helper for testEnded information.
SubprocessEventHelper.TestLogEventInfo	Helper for testLog information.
SubprocessEventHelper.TestModuleStartedEventInfo	Helper for test module started information.
SubprocessEventHelper.TestRunEndedEventInfo	Helper for testRunEnded Information.
SubprocessEventHelper.TestRunFailedEventInfo	Helper for testRunFailed information
SubprocessEventHelper.TestRunStartedEventInfo	Helper for testRunStarted information
SubprocessEventHelper.TestStartedEventInfo	Helper for testStarted information
SubprocessExceptionParser	Helper to handle the exception output from standard Tradefed command runners.
SubprocessReportingHelper	A class to build a wrapper configuration file to use subprocess results reporter for a cluster command.
SubprocessResultsReporter	Implements `ITestInvocationListener` to be specified as a result_reporter and forward from the subprocess the results of tests, test runs, test invocations.
SubprocessTestResultsParser	Extends `ERROR(/FileOutputStream)` to parse the output before writing to the file so we can generate the test events on the launcher side.
SubprocessTestResultsParser.StatusKeys	Relevant test status keys.
SubprocessTfLauncher	A `IRemoteTest` for running tests against a separate TF installation.
SuiteApkInstaller	Installs specified APKs for Suite configuration: either from $ANDROID_TARGET_OUT_TESTCASES variable or the ROOT_DIR in build info.
SuiteModuleLoader	Retrieves Compatibility test module definitions from the repository.
SuiteModuleLoader.ConfigFilter	A `ERROR(/FilenameFilter)` to find all the config files in a directory.
SuiteResultHolder	Helper object to ease up serializing and deserializing the invocation results.
SuiteResultReporter	Collect test results for an entire suite invocation and output the final results.
SuiteResultReporter.ModulePrepTimes	Object holder for the preparation and tear down time of one module.
SuiteTestFilter	Represents a filter for including and excluding tests.
SwitchUserTargetPreparer	A `ITargetPreparer` that switches to the specified user kind in setUp.
SystemServerFileDescriptorChecker	Checks if system server appears to be running out of FDs.
SystemServerStatusChecker	Check if the pid of system_server has changed from before and after a module run.
SystemUpdaterDeviceFlasher	A `IDeviceFlasher` that relies on the system updater to install a system image bundled in a OTA update package.
SystemUtil	Utility class for making system calls.
SystemUtil.EnvVariable

T

TableBuilder	Helper class to display a matrix of String elements in a table.
TableFormatter	Helper class to display a matrix of String elements so each element column is lined up
TargetFileUtils
TargetFileUtils.FilePermission
TargetSetupError	A fatal error occurred while preparing the target for testing.
TarUtil	Utility to manipulate a tar file.
TcpDevice	A placeholder `IDevice` used by `DeviceManager` to allocate when `DeviceSelectionOptions.tcpDeviceRequested()` is `true`
TearDownPassThroughPreparer	Allows for running tearDown on preparers that are included in a config as an object.
TelephonyHelper	A utility to use and get information related to the telephony.
TelephonyHelper.SimCardInformation	An information holder for the sim card related information.
TelephonyTokenProvider	Token provider for telephony related tokens.
TemperatureThrottlingWaiter	An `ITargetPreparer` that waits until device's temperature gets down to target
TemplateResolutionError	Class extending `ConfigurationException` for template related error during configuration parsing.
TerribleFailureEmailHandler	A simple handler class that sends an email to interested people when a WTF (What a Terrible Failure) error occurs within a Trade Federation instance.
TestAppInstallSetup	A `ITargetPreparer` that installs one or more apps from a `IDeviceBuildInfo.getTestsDir()` folder onto device.
TestContext	A class to model a TestContext message of TFC API.
TestDependencyResolver	Helper to resolve dependencies if needed.
TestDescription	Class representing information about a test case.
TestDescriptionsFile	A utility class for marshalling and unmarshalling a list of TestDescriptions to a test file.
TestDevice	Implementation of a `ITestDevice` for a full stack android device
TestDevice.MicrodroidBuilder	A builder used to create a Microdroid TestDevice.
TestDeviceOptions	Container for `ITestDevice` `Option` s
TestDeviceOptions.InstanceType
TestDeviceState	A more fully featured representation of device state than `DeviceState` .
TestEnvironment	A class to model a TestEnvironment message returned by TFC API.
TestErrorIdentifier	Error identifier from tests and tests runners.
TestFailureListener	Listener used to take action such as screenshot, bugreport, logcat collection upon a test failure when requested.
TestFailureModuleController	Controller for module that simply want to tune how the tests failures log collected are behaving.
TestFilePushSetup	A `ITargetPreparer` that pushes one or more files/dirs from a `IDeviceBuildInfo.getTestsDir()` folder onto device.
TestFilterHelper	Helper class for filtering tests
TestGroupStatus	A class to store status of a test group.
TestInfo	Stores the test information set in a TEST_MAPPING file.
TestInformation	Holder object that contains all the information and dependencies a test runner or test might need to execute properly.
TestInformation.Builder	Builder to create a `TestInformation` instance.
TestInvocation	Default implementation of `ITestInvocation` .
TestInvocation.RunMode	The different mode an invocation can run into.
TestInvocation.Stage
TestInvocationManagementServer	GRPC server helping to management test invocation and their lifecycle.
TestInvocationManagementServer.InvocationInformation
TestMapping	A class for loading a TEST_MAPPING file.
TestMappingSuiteRunner	Implementation of `BaseTestSuite` to run tests specified by option include-filter, or TEST_MAPPING files from build, as a suite.
TestOption	Stores the test option details set in a TEST_MAPPING file.
TestOutputUploader	Uploads test output files to local file system, GCS, or an HTTP(S) endpoint.
TestRecordInterpreter	Utility to convert a `TestRecord` proto into a more easily manipulable format in Tradefed.
TestRecordProtoUtil	Utility to read the `TestRecord` proto from a file.
TestResource	A class to model a TestResource message returned by TFC API.
TestResourceDownloader	A class to download test resource files from file system/GCS/HTTP.
TestResult	Container for a result of a single test.
TestResultListener	A simplification of ITestLifecycleListener for implementers that only care about individual test results.
TestRunnerUtil	A utility class to help various test runners.
TestRunResult	Holds results from a single test run.
TestRunToTestInvocationForwarder	Forwarder from ddmlib `ITestRunListener` to `ITestLifeCycleReceiver` .
TestsPoolPoller	Tests wrapper that allow to execute all the tests of a pool of tests.
TestSuiteInfo	A class that resolves loading of build related metadata for test suite To properly expose related info, a test suite must include a `test-suite-info.properties` file in its jar resources
TestSummary	A class to represent a test summary.
TestSummary.Type
TestSummary.TypedString
TestSystemAppInstallSetup	A `ITargetPreparer` that installs one or more apps from a `IDeviceBuildInfo.getTestsDir()` folder onto the /system partition on device.
TestTimeoutEnforcer	Listeners that allows to check the execution time of a given test case and fail it if it goes over a given timeout.
TextResultReporter	A test result reporter that forwards results to the JUnit text result printer.
TfMetricProtoUtil	Utility class to help with the Map to Map transition.
TfObjectTracker	A utility to track the usage of the different Trade Fedederation objects.
TfSuiteRunner	Implementation of `ITestSuite` which will load tests from TF jars res/config/suite/ folder.
TfTestLauncher	A `IRemoteTest` for running unit or functional tests against a separate TF installation.
TimeStatusChecker	Status checker to ensure that the device and host time are kept in sync.
TimeUtil	Contains time related utility methods.
TimeVal	This is a sentinel type which wraps a `Long` .
TimeWaster	A simple target preparer to waste time and potentially restart the device.
TokenProperty	Supported token with dynamic sharding.
TokenProviderHelper	Helper that gives the provider associated to a particular token, in order to find out if a device supports the token.
TraceCmdCollector	A `IMetricCollector` that collects traces during the test using trace-cmd, and logs them to the invocation.
TracePropagatingExecutorService	An executor service that forwards tasks to an underlying implementation while propagating the tracing context.
TracingLogger	Class that helps to manage tracing for each test invocation.
TradefedConfigObject	A class to model a TradefedConfigObject message of TFC API.
TradefedConfigObject.Type	A list of configuration object types which can be injected to a cluster command config.
TradefedDelegator	Objects that helps delegating the invocation to another Tradefed binary.
TradefedFeatureClient	A grpc client to request feature execution from the server.
TradefedFeatureServer	A server that responds to requests for triggering features.
TradefedSandbox	Sandbox container that can run a Trade Federation invocation.
TradefedSandboxFactory	Default implementation for SandboxFactory
TradefedSandboxRunner	Runner associated with a `TradefedSandbox` that will allow executing the sandbox.
TradefedSandboxRunner.StubScheduledInvocationListener	A stub `IScheduledInvocationListener` that does nothing.

U

UiAutomatorRunner	Runs UI Automator test on device and reports results.
UiAutomatorTest
UiAutomatorTest.LoggingOption
UiAutomatorTest.TestFailureAction
UnexecutedTestReporterThread	Threads that takes care of reporting all unexecuted tests.
UniqueMultiMap <K, V>	A `MultiMap` that ensures unique values for each key.
UsbResetMultiDeviceRecovery	A `IMultiDeviceRecovery` which resets USB buses for offline devices.
UsbResetRunConfigRecovery	Allow to trigger a command to reset the USB of a device
UsbResetTest	An `IRemoteTest` that reset the device USB and checks whether the device comes back online afterwards.
UserChecker	Checks if users have changed during the test.
UserCleaner	A `ITargetPreparer` that removes secondary users on teardown.
UserInfo	Similar to UserInfo class from platform.
UserInfo.UserType	Supported variants of a user's type in external APIs.

V

ValidateSuiteConfigHelper	This class will help validating that the `IConfiguration` loaded for the suite are meeting the expected requirements: - No Build providers - No Result reporters
VersionedFile	Data structure representing a file that has an associated version.
VersionParser	Fetch the version of the running tradefed artifacts.
VisibleBackgroundUserPreparer	Target preparer for running tests in a user that is started in the visible in the background.
VmRemoteDevice	A Remote virtual device that we will manage from inside the Virtual Machine.

W

WaitDeviceRecovery	A simple implementation of a `IDeviceRecovery` that waits for device to be online and respond to simple commands.
WaitForDeviceDatetimePreparer	A `ITargetPreparer` that waits for datetime to be set on device Optionally this preparer can force a `TargetSetupError` if datetime is not set within timeout, or force host datetime onto device,
WifiHelper	Helper class for manipulating wifi services on device.
WifiPreparer	A `ITargetPreparer` that configures wifi on the device if necessary.

X

XmlFormattedGeneratorReporter	Implementation of the `FormattedGeneratorReporter` which format the suite results in an xml format.
XmlResultReporter	Writes JUnit results to an XML files in a format consistent with Ant's XMLJUnitResultFormatter.
XmlSuiteResultFormatter	Utility class to save a suite run as an XML.
XmlSuiteResultFormatter.RunHistory	Helper object for JSON conversion.

Y

YamlClassOptionsParser Helper to parse test runner information from the YAML Tradefed Configuration.

Z

ZipCompressionStrategy	An `ICompressionStrategy` for creating zip archives.
ZipUtil	A helper class for compression-related operations
ZipUtil2	A helper class for zip extraction that takes POSIX file permissions into account

Class Index

These are the API classes. See all API packages .

A

AaptParser	Class that extracts info from apk by parsing output of 'aapt dump badging'.
AaptParser.AaptVersion	Enum of options for AAPT version used to parse APK files.
Abi	A class representing an ABI.
AbiFormatter	Utility class for abi.
AbiUtils	Utility class for handling device ABIs
AbstractConnection	Abstract connection representation.
AbstractHostMonitor	Typical class for Host Health Monitoring.
AbstractXmlParser	Helper base class for parsing xml files
AbstractXmlParser.ParseException	Thrown if XML input could not be parsed
AcloudConfigParser	Helper class that parse an Acloud config (used to start a Cloud device instance).
AcloudConfigParser.AcloudKeys	Sets of key that can be searched from the configuration.
ActionInProgress	The general action in progress.
ActiveTrace	Main class helping to describe and manage an active trace.
ActivityStatusChecker	Status checker for left over activities running at the end of a module.
AdbRootElevator	An `AutoCloseable` that enables adb root when constructed if needed and restores root state when complete.
AdbSshConnection	Adb connection over an ssh bridge.
AdbStopServerPreparer	Target preparer to stop adb server on the host before and after running adb tests.
AdbTcpConnection	Default connection representation of a device, assumed to be a standard adb connection of the device.
AdbUtils	A utility class for adb operations.
AfterClassWithInfo	Similar guarantees as `AfterClass` but method annotated must require a `TestInformation` parameter.
AggregatePostProcessor	A metric aggregator that gives the min, max, mean, variance, standard deviation, total, count and optionally percentiles for numeric metrics collected during multiple-iteration test runs, treating them as doubles.
AllTestAppsInstallSetup	A `ITargetPreparer` that installs all apps from a `IDeviceBuildInfo#getTestsDir()` folder onto device.
AltDirBehavior	An enum to define alternative directory behaviors for various test artifact installers/pushers
AndroidJUnitTest	A Test that runs an instrumentation test package on given device using the android.support.test.runner.AndroidJUnitRunner.
AoaTargetPreparer	`ITargetPreparer` that executes a series of actions (eg clicks and swipes) using the Android Open Accessory (AOAv2) protocol.
AppBuildInfo	A `IBuildInfo` that represents an Android application and its test package(s).
AppDeviceBuildInfo	This class is deprecated. Use `IDeviceBuildInfo` directly.
AppSetup	A `ITargetPreparer` that installs an apk and its tests.
AppVersionFetcher	Utility class to get app version string from device.
AppVersionFetcher.AppVersionInfo	App version info types.
ArchModuleController	Module controller to not run tests when it doesn't match any given architectures.
ArgsOptionParser	Populates `Option` fields from parsed command line arguments.
ArrayUtil	Utility methods for arrays
ArtChrootPreparer	Create chroot directory for ART tests.
ArtGTest
ArtRunTest	A test runner to run ART run-tests.
ArtRunTest.AdbShellCommandException	An exception class to report an error that occurred during the execution of an ADB shell command.
ATestFileSystemLogSaver	This LogSaver class is used by ATest to save logs in a specific path.
AtestRunner	Implementation of `ITestSuite`
AtraceCollector	A `IMetricCollector` that runs atrace during a test and collects the result and log them to the invocation.
AtraceRunMetricCollector	Collects the traces from all the test directory under the given directory from the test device, log the test directory and post process the trace files under the test directory and aggregate the metrics.
AutoLogCollector	Enumeration describing which collector can automatically be handled by the harness.
AutomatedReporters	Class that defines the mapping from Tradefed automated reporters.
AveragePostProcessor	Implementation of post processor that calculate the average of the list of metrics.

B

BackgroundDeviceAction	Runs a command on a given device repeating as necessary until the action is canceled.
BaseDeviceMetricCollector	Base implementation of `IMetricCollector` that allows to start and stop collection on `onTestRunStart(com.android.tradefed.device.metric.DeviceMetricData)` and `ERROR(/#onTestRunEnd(com.android.tradefed.device.metric.DeviceMetricData,Map))` .
BaseEmulatorPreparer	Common preparer for launching a local emulator.
BaseHostJUnit4Test	Base test class for running host JUnit4 style tests.
BaseLeveledLogOutput	A base implementation for `ILeveledLogOutput` that allows to filtering some tags based on their name or components.
BaseModuleController	Basic implementation of `IModuleController` that should be implemented for checking if a module should run or not.
BaseMultiTargetPreparer	Base implementation of `IMultiTargetPreparer` that allows to disable the object.
BasePostProcessor	The base `IPostProcessor` that every implementation should extend.
BaseRetryDecision	Base implementation of `IRetryDecision` .
BaseStreamLogger <OS extends OutputStream>	A `ILeveledLogOutput` that directs log messages to an output stream and to stdout.
BaseTargetPreparer	Base implementation class for `ITargetPreparer` that allows to control whether the object is disabled or not.
BaseTestSuite	A Test for running Compatibility Test Suite with new suite system.
BatteryController	Utility class that allows to control the battery charging state of a device.
BatteryRechargeDeviceRecovery	Allow to trigger a command when the battery level of the device goes under a given threshold.
BatteryTemperature
BatteryUnavailableDeviceRecovery	Recovery checker that will trigger a configuration if the battery level is not available.
BeforeClassWithInfo	Similar guarantees as `BeforeClass` but method annotated must require a `TestInformation` parameter.
BinaryState	Enum used to record ON/OFF state with a IGNORE no-op state.
BluetoothConnectionLatencyCollector	The collector will push a pre-defined statsd duration metric config to devices and collect Bluetooth connection duration for each profile.
BluetoothConnectionStateCollector	This collector will collect BluetoothConnectionStateChanged metrics and record connection state number for each profile.
BluetoothConnectionSuccessRatePostProcessor	Implementation of postprocessor which calculates success rate for a bluetooth profile Use "metric-key-match" to specify metrics which contain bluetooth connection states in numeric array Example [0, 1, 2, 3, 0, 1, 2, 3].
BluetoothHciSnoopLogCollector	Collector to enable Bluetooth HCI snoop logging on the DUT and to collect the log for each test.
BluetoothUtils	Utility functions for calling BluetoothInstrumentation on device Device side BluetoothInstrumentation code can be found in AOSP at: `frameworks/base/core/tests/bluetoothtests`
BootstrapBuildProvider	A `IDeviceBuildProvider` that bootstraps build info from the test device This is typically used for devices with an externally supplied build, ie
BootstrapServiceFileResolverLoader	Loads resolvers using the service loading facility.
Bugreport	Object holding the bugreport files references, compatible of flat bugreport and zipped bugreport (bugreportz).
BugreportCollector	A pass-through `ITestInvocationListener` that collects bugreports when configurable events occur and then calls `ITestInvocationListener#testLog` on its children after each bugreport is collected.
BugreportCollector.Filter
BugreportCollector.Freq
BugreportCollector.Noun
BugreportCollector.Predicate	A full predicate describing when to capture a bugreport.
BugreportCollector.Relation
BugreportCollector.SubPredicate
BugreportzOnFailureCollector	Collect a bugreportz when a test case fails.
BugreportzOnTestCaseFailureCollector	Collect a bugreportz when a test case in a run fails.
BuildError	Thrown if the provided build fails to run.
BuildInfo	Generic implementation of a `IBuildInfo` that should be associated with a `ITestDevice` .
BuildInfoKey	Class holding enumeration related to build information queries.
BuildInfoKey.BuildInfoFileKey	Enum describing all the known file types that can be queried through `IBuildInfo.getFile(com.android.tradefed.build.BuildInfoKey.BuildInfoFileKey)` .
BuildInfoRecorder	An `ITargetPreparer` that writes build info meta data into a specified file.
BuildInfoUtil	A util class to help manipulate `IBuildInfo`
BuildRetrievalError	A fatal error occurred while retrieving the build for testing.
BuildSerializedVersion	Class that contains the current serialization version of all `IBuildInfo` .
BuildTestsZipUtils	A helper class for operations related to tests zip generated by Android build system
BulkEmailer	A email sender utility that allows the following configuration: sent interval,initial burst size, recipients and the total number messages.
BundletoolUtil	Utility class that uses bundletool command line to install the .apks on deivce.
ByteArrayInputStreamSource
ByteArrayList	A class to represent a lightweight byte array.
ByteArrayUtil	Utilities to operate on byte array, eg, convert bytes to integer.

C

CarModuleController	This controller prevents execution of tests cases on non-automotive devices.
CarryDnaeError	Internal `ERROR(/RuntimeException)` to carry `DeviceNotAvailableException` through the JUnit4 framework.
CarryInterruptedException	Thrown when test phase timeout is triggered and an InterruptedException needs to be carried from test execution thread to invocation execution thread.
CdmaDeviceFlasher	A class that flashes an image on a physical Android device with a CDMA radio.
CecControllerTokenProvider	Token provider for Consumer Electronics Control (CEC) related tokens.
CentralDirectoryInfo	CentralDirectoryInfo is a class containing the information of a file/folder inside a zip file.
CheckPairingPreparer	A `CompanionAwarePreparer` that verifies BT bonding between primary and companion devices
CircularAtraceUtil	An atrace utility developed primarily for identifying the root causes of ANRs during Monkey testing.
CircularByteArray	Data structure for holding a fixed size array that operates as a circular buffer, and tracks the total sum of all values in the array.
ClangCodeCoverageCollector	A `BaseDeviceMetricCollector` that will pull Clang coverage measurements off of the device and log them as test artifacts.
ClassNotFoundConfigurationException	`ConfigurationException` for when the class of an object is not found.
ClassPathScanner	Finds entries on classpath.
ClassPathScanner.ClassNameFilter	A `IClassPathFilter` that filters and transforms java class names.
ClassPathScanner.ExternalClassNameFilter	A `ClassNameFilter` that rejects inner classes
ClassPathScanner.IClassPathFilter	A filter for classpath entry paths Patterned after `FileFilter`
ClockworkUtils	A clockwork utility for sharing multi-device logic
CloseableTraceScope	A scoped class that allows to report tracing section via try-with-resources
ClusterBuildInfo	A `IBuildInfo` class for builds piped from TFC.
ClusterBuildProvider	A `IBuildProvider` to download TFC test resources.
ClusterClient	A `IClusterClient` implementation for interacting with the TFC backend.
ClusterCommand	A class that represents a task fetched from TF Cluster.
ClusterCommand.RequestType
ClusterCommand.State	Command's status in the TF cluster.
ClusterCommandConfigBuilder	A class to build a configuration file for a cluster command.
ClusterCommandEvent	A class to encapsulate cluster command events to be uploaded.
ClusterCommandEvent.Builder
ClusterCommandEvent.Type
ClusterCommandLauncher	A `IRemoteTest` class to launch a command from TFC via a subprocess TF.
ClusterCommandScheduler	A `ICommandScheduler` to support TFC (Tradefed Cluster).
ClusterCommandStatus	A class that represents the state and the cancel reason for a command from TF Cluster.
ClusterDeviceInfo	A class to encapsulate cluster device info to be uploaded.
ClusterDeviceInfo.Builder
ClusterDeviceMonitor	An `IDeviceMonitor` implementation that reports results to the Tradefed Cluster service.
ClusterEventUploader <T extends IClusterEvent >	ClusterEventUploader class, which uploads `IClusterEvent` to TFC.
ClusterHostEvent	A class to encapsulate cluster host events to be uploaded.
ClusterHostEvent.Builder
ClusterHostEvent.HostEventType	Enums of the different types of host events.
ClusterHostUtil	Static util functions for TF Cluster to get global config instances, host information, etc.
ClusterLogSaver	A `ILogSaver` class to upload test outputs to TFC.
ClusterLogSaver.FilePickingStrategy	File picking strategies.
ClusterOptions
CodeCoverageTest	A Test that runs an instrumentation test package on a given device and generates the code coverage report.
CollectingByteOutputReceiver	A `IShellOutputReceiver` which collects the whole shell output into a `byte[]` .
CollectingOutputReceiver	A `IShellOutputReceiver` which collects the whole shell output into one `ERROR(/String)` .
CollectingTestListener	A `ITestInvocationListener` that will collect all test results.
CollectorHelper	Helper to do some `IMetricCollector` operations needed in several places.
CommandFileParser	Parser for file that contains set of command lines.
CommandFileParser.CommandLine
CommandInterrupter	Service allowing TradeFederation commands to be interrupted or marked as uninterruptible.
CommandLineBuildInfoBuilder	Utility meant to capture the usual build information arguments from a command line and create a `IBuildInfo` from them.
CommandOptions	Implementation of `ICommandOptions` .
CommandOptionsGetter	Service implementation that returns the command options value of a given invocation.
CommandResult	Contains the result of a command.
CommandRunner	An alternate TradeFederation entry point that will run command specified in command line arguments and then quit.
CommandRunner.ExitCode	Error codes that are possible to exit with.
CommandScheduler	A scheduler for running TradeFederation commands across all available devices.
CommandScheduler.HostState	Enums of different status of host
CommandStatus	Represents the status of an timed operation.
CommandStatusHandler	Handler helping to monitor and update the status of an invocation.
CommonLogRemoteFileUtil	This utility allows to avoid code duplication across the different remote device representation for the remote log fetching logic of common files.
CommonLogRemoteFileUtil.KnownLogFileEntry	A representation of a known log entry for remote devices.
CompanionAllocator	Base class that takes care of allocating and freeing companion device `getCompanionDeviceSelectionOptions()` should be implemented to describe the criteria needed to allocate the companion device
CompanionAwarePreparer	An `ITargetPreparer` that encapsulates the logic of getting an already allocated companion device.
CompanionAwareTest	Base test class that encapsulates boilerpate of getting and checking companion device Subclass may call `getCompanion()` to retrieve the allocated companion.
CompanionDeviceTracker	A class for allocating and freeing companion devices
CompanionRunCommandTargetPreparer	A `ITargetPreparer` that runs specified commands on the allocated companion device
CompanionTestAppInstallSetup	A `ITargetPreparer` that installs one or more apps from a `IDeviceBuildInfo#getTestsDir()` folder onto an allocated companion device.
CompileBootImageWithSpeedTargetPreparer	Recompiles the boot classpath and system server with the compiler filter 'speed'.
ConditionFailureMonitor	Monitor for any failures from the invocation.
ConditionPriorityBlockingQueue <T>	A thread-safe class with `ERROR(/PriorityBlockingQueue)` -like operations that can retrieve objects that match a certain condition.
ConditionPriorityBlockingQueue.AlwaysMatch <T>	A `ConditionPriorityBlockingQueue.IMatcher` that matches any object.
ConditionPriorityBlockingQueue.IMatcher <T>	An interface for determining if elements match some sort of condition.
ConfigCompleter	Implementation of the `Completer` for our TF configurations.
Configuration	A concrete `IConfiguration` implementation that stores the loaded config objects in a map.
ConfigurationDef	Holds a record of a configuration, its associated objects and their options.
ConfigurationDef.ConfigObjectDef	Object to hold info for a className and the appearance number it has (eg if a config has the same object twice, the first one will have the first appearance number).
ConfigurationDescriptor	Configuration Object that describes some aspect of the configuration itself.
ConfigurationDescriptor.LocalTestRunner	Enum used to indicate local test runner.
ConfigurationException	Thrown if configuration could not be loaded.
ConfigurationFactory	Factory for creating `IConfiguration` .
ConfigurationFactory.ConfigLoader	Implementation of `IConfigDefLoader` that tracks the included configurations from one root config, and throws an exception on circular includes.
ConfigurationFactory.ExceptionLoader
ConfigurationUtil	Utility functions to handle configuration files.
ConfigurationXmlParserSettings	A simple class to accept settings for the ConfigurationXmlParser To pass settings to this class, the alias is mandatory.
ConfigurationYamlParser	Parser for YAML style Tradefed configurations
ConfigUtil	Utility class for creating, interacting with, and pushing statsd configuration files.
Console	Main TradeFederation console providing user with the interface to interact Currently supports operations such as add a command to test list devices and their state list invocations in progress list commands in queue dump invocation log to file/stdout shutdown
Console.ArgRunnable <T>	A `ERROR(/Runnable)` with a `run` method that can take an argument
Console.CaptureList	A convenience type for `List<List<String>>`
ConsoleReaderOutputStream	An OutputStream that can be used to make `System.out.print()` play nice with the user's `LineReader` unfinishedLine.
ConsoleResultReporter	Result reporter to print the test results to the console.
ContentProviderHandler	Handler that abstract the content provider interactions and allow to use the device side content provider for different operations.
CountingTestResultListener	A `TestResultListener` that tracks the total number of tests by `TestStatus`
CountTestCasesCollector	Count and report the number of test cases for a given `IRemoteTest` .
CoverageMeasurementForwarder	A placeholder test that forwards coverage measurements from the build provider to the logger.
CoverageOptions	Tradefed object to hold coverage options.
CoverageOptions.Toolchain
CpuThrottlingWaiter	An `ITargetPreparer` that waits until max frequency on all cores are restored to highest level available
CreateAvdPreparer
CreateUserPreparer	Target preparer for creating user and cleaning it up at the end.
CurrentInvocation	A class that tracks and provides the current invocation information useful anywhere inside the invocation.
CurrentInvocation.InvocationInfo	Some special named key that we will always populate for the invocation.
CurrentInvocation.IsolationGrade	Describes the level of isolation

D

DebugHostLogOnFailureCollector	Collector that will gather and log the host-side logs when a test case failure occurs.
DefaultConnection	Default connection representation of a device, assumed to be a standard adb connection of the device.
DefaultConnection.ConnectionBuilder	Builder used to described the connection.
DefaultRemoteAndroidTestRunner	Extension of the ddmlib `RemoteAndroidTestRunner` to set some default for Tradefed use cases.
DefaultTestsZipInstaller	A default implementation of tests zip installer.
DelegatedInvocationExecution	`InvocationExecution` which delegate the execution to another Tradefed binary.
DependenciesResolver	A new type of provider that allows to get all the dependencies for a test.
DeviceAllocationResult	Represents the results of an allocation attempt for a command.
DeviceAllocationState	Represents the allocation state of the device from the IDeviceManager perspective
DeviceAvailableChecker	Checker to ensure a module doesn't leave the device in an offline state.
DeviceBaselineChecker	Set device baseline settings before each module.
DeviceBaselineSetter	Abstract class used to create a device baseline setting.
DeviceBatteryLevelChecker	An `IRemoteTest` that checks for a minimum battery charge, and waits for the battery to reach a second charging threshold if the minimum charge isn't present.
DeviceBatteryResourceMetricCollector	This collector collects device battery metrics.
DeviceBuildDescriptor	A wrapper class for a `IBuildInfo` , that contains helper methods to retrieve device platform build information.
DeviceBuildInfo	A `IBuildInfo` that represents a complete Android device build and (optionally) its tests.
DeviceBuildInfoBootStrapper	A `ITargetPreparer` that replaces build info fields with attributes read from device This is useful for testing devices with builds generated from an external source (eg
DeviceBuildInfoInjector	A `ITargetPreparer` that inserts `DeviceBuildDescriptor` metadata into the `IBuildInfo` .
DeviceCleaner	Performs reboot or format as cleanup action after test, and optionally turns screen off
DeviceCleaner.CleanupAction
DeviceCleaner.PostCleanupAction
DeviceConcurrentUtil	Contains utility methods and classes for concurrent device side command execution Use `ERROR(/ExecutorService)` to run commands implemented as `ShellCommandCallable` , and use `ERROR(/#joinFuture(String,Future,long))` for synchronization against the `ERROR(/Future)` as returned by `ERROR(/ExecutorService)` for the command execution.
DeviceConcurrentUtil.ShellCommandCallable <V>	A `ERROR(/Callable)` that wraps the details of executing shell command on an `ITestDevice` .
DeviceConfigurationHolder	A concrete `IDeviceConfiguration` implementation that stores the loaded device configuration objects in its attributes.
DeviceDescriptor	A class containing information describing a device under test.
DeviceDisconnectedException	Thrown when a device is no longer reachable via it's transport type, eg if the device is no longer visible via USB, or TCP/IP connection
DeviceErrorIdentifier	Error Identifiers from Device errors and device reported errors.
DeviceFailedToBootError	Thrown if a device fails to boot after being flashed with a build.
DeviceFeatureModuleController	A module controller to not run tests when it doesn't support certain feature.
DeviceFileReporter	A utility class that checks the device for files and sends them to `ITestInvocationListener#testLog(String, LogDataType, InputStreamSource)` if found.
DeviceFlashPreparer	A `ITargetPreparer` that flashes an image on physical Android hardware.
DeviceFoldableState	Representation of device foldable state as returned by "cmd device_state print-states".
DeviceFolderBuildInfo	A `IDeviceBuildInfo` that also contains other build artifacts contained in a directory on the local filesystem.
DeviceImageZipFlashingTargetPreparer	A target preparer that flashes the device with device images provided via a specific format.
DeviceInternetAccessibilityResourceMetricCollector	The collector pings google.com to check if the device has internet accessibility or not.
DeviceJUnit4ClassRunner	JUnit4 test runner that also accommodates `IDeviceTest` .
DeviceJUnit4ClassRunner.LogAnnotation	Fake annotation meant to carry logs to the reporters.
DeviceJUnit4ClassRunner.MetricAnnotation	Fake annotation meant to carry metrics to the reporters.
DeviceJUnit4ClassRunner.TestLogData	Implementation of `ExternalResource` and `TestRule` .
DeviceJUnit4ClassRunner.TestMetrics	Implementation of `ExternalResource` and `TestRule` .
DeviceManagementGrpcServer	GRPC server allowing to reserve a device from Tradefed.
DeviceManager
DeviceManager.FastbootDevice	Representation of a device in Fastboot mode.
DeviceMetricData	Object to hold all the data collected by metric collectors.
DeviceMonitorMultiplexer	A proxy class to propagate requests to multiple `IDeviceMonitor` s.
DeviceNotAvailableException	Thrown when a device is no longer available for testing.
DeviceOwnerTargetPreparer	An `ITargetPreparer` that sets up a device owner component.
DeviceParameterizedRunner	JUnit4 style parameterized runner for host-side driven parameterized tests.
DeviceProperties	Common constant definitions for device side property names
DeviceRecoveryModeUtil
DeviceReleaseReporter	Device release reporter that handles communicating with the parent process the device(s) to be released.
DeviceResetFeature	Server side implementation of device reset.
DeviceResetHandler	Utility handling generically device resetting.
DeviceRuntimeException	Thrown when a device action did not results in the expected results.
DeviceSelectionOptions	Container for for device selection criteria.
DeviceSelectionOptions.DeviceRequestedType	The different possible types of placeholder devices supported.
DeviceSettingChecker	Check if device settings have changed during a module run.
DeviceSetup	A `ITargetPreparer` that configures a device for testing based on provided `Option` s.
DeviceStateMonitor	Helper class for monitoring the state of a `IDevice` .
DeviceStorageAgeResourceMetricCollector	Parse storage age from logcat.
DeviceStorageFiller	Target preparer to fill up storage so some amount of free space is available.
DeviceStorageStatusChecker	Check if device has enough disk space for the given partitions.
DeviceStringPusher	Target preparer to write a string to a file.
DeviceSuite	Extends the JUnit4 container `Suite` in order to provide a `ITestDevice` to the tests that requires it.
DeviceSyncHelper	Helper that helps syncing a new device image to the device.
DeviceTestCase	Helper JUnit test case that provides the `IRemoteTest` and `IDeviceTest` services.
DeviceTestResult	An specialization of `TestResult` that will abort when a `DeviceNotAvailableException` occurs
DeviceTestResult.RuntimeDeviceNotAvailableException
DeviceTestRunOptions	A builder class for options related to running device tests through BaseHostJUnit4Test.
DeviceTestSuite	Helper JUnit test suite that provides the `IRemoteTest` and `IDeviceTest` services.
DeviceTraceCollector	Collector that will start perfetto trace when a test run starts and log trace file at the end.
DeviceUnavailableMonitor	This listener attempts to capture a test case level DNAE only.
DeviceUnresponsiveException	A specialization of `DeviceNotAvailableException` that indicates device is visible to adb, but is unresponsive (ie, commands timing out, won't boot, etc)
DeviceUpdateTargetPreparer	An abstract `ITargetPreparer` that takes care of common steps around updating devices with a device image file from an external source (as opposed to a build service).
DeviceWifiResourceMetricCollector	The collector collects current connected wifi signal strength and link speed metrics.
DeviceWiper	A `ITargetPreparer` that wipes userdata
DirectedGraph <V>	A directed unweighted graphs implementation.
DisableSELinuxTargetPreparer	Target preparer that disables SELinux if enabled.
DryRunKeyStore	A keystore for dry-run where any keystore value is always properly replaced and found.
DryRunner	Transparently dry runs tests instead of actually executing them.
DynamicFileStubTest	This is a tradefed test to test tradefed can resolve dynamic file correctly.
DynamicRemoteFileResolver	Class that helps resolving path to remote files.
DynamicRemoteFileResolver.FileResolverLoader	Loads implementations of `IRemoteFileResolver` .
DynamicSystemPreparer	An `ITargetPreparer` that sets up a system image on top of a device build with the Dynamic System Update.

E

EarlyDeviceReleaseFeature	Feature server implementation for early device release.
Email	A helper class to send an email.
EmailHostHealthAgent	A `IHostHealthAgent` implementation to send email from Host monitor reports
EmmaXmlConstants	Constants used when parsing emma xml report.
EmulatorMemoryCpuCapturer
EndCentralDirectoryInfo	EndCentralDirectoryInfo is a class containing the overall information of a zip file.
EnforcedSeLinuxChecker	Status checker that ensures the status of Selinux.
EraseUserDataPreparer	A `ITargetPreparer` that wipes user data on the device.
ErrorIdentifier	This interface describes a specific error and its properties.
ErrorStorageUtil	Helper class for manipulating the errors to align with the common storage.
EventsLoggerListener	Listener that logs all the events it receives into a file
ExceptionThrowingRunnerWrapper
ExecutableBaseTest	Base class for executable style of tests.
ExecutableHostTest	Test runner for executable running on the host.
ExecutableTargetTest	Test runner for executable running on the target.
ExecutionFiles	Files dependencies generated during the execution of a test or invocation that need to be carried for testing.
ExecutionFiles.FilesKey	Enumeration of known standard key for the map.
ExecutionProperties	Properties generated during the execution of a test or invocation.
ExistingBuildProvider	A `IBuildProvider` that returns an already constructed `IBuildInfo` .
ExtendedFile	A extension of standard file to carry a build related metadata.

F

FailureDescription	The class describing a failure information in Trade Federation.
FakeTest	A fake test whose purpose is to make it easy to generate repeatable test results.
FakeTestsZipFolder	A testing fixture that creates a fake unzipped tests folder based on a list of content.
FakeTestsZipFolder.ItemType
FastbootCommandPreparer	Target preparer that triggers fastboot and sends fastboot commands.
FastbootDeviceFlasher	A class that relies on fastboot to flash an image on physical Android hardware.
FastbootHelper	A helper class for fastboot operations.
FastbootUpdateBootstrapPreparer	An `ITargetPreparer` that stages specified files (bootloader, radio, device image zip) into `IDeviceBuildInfo` to get devices flashed with `FastbootDeviceFlasher` , then injects post-boot device attributes into the build info for result reporting purposes.
FatalHostError	An exception that indicates a fatal unrecoverable error has occurred on the host machine running TradeFederation, and that the TradeFederation instance should be shut down.
FeatureFlagTargetPreparer	Updates the DeviceConfig (feature flags tuned by a remote service).
FileDownloadCache	A helper class that maintains a local filesystem LRU cache of downloaded files.
FileDownloadCacheFactory	A factory for creating `FileDownloadCache`
FileDownloadCacheWrapper	A wrapper class that provides `FileDownloadCache` facilities while implementing the `IFileDownloader` interface.
FileIdleMonitor	Monitors files and executes a callback if they have been idle (ie
FileInputStreamSource	A `InputStreamSource` that takes an input file.
FileLogger	A `ILeveledLogOutput` that directs log messages to a file and to stdout.
FileProtoResultReporter	Proto reporter that dumps the `TestRecord` into a file.
FilePullerDeviceMetricCollector	A `BaseDeviceMetricCollector` that listen for metrics key coming from the device and pull them as a file from the device.
FilePullerLogCollector	Logger of the file reported by the device-side.
FileSystemLogSaver	Save logs to a file system.
FileUtil	A helper class for file related operations
FileUtil.HarnessIOException	Harness exception that helps carrying file issues.
FileUtil.LowDiskSpaceException	Thrown if usable disk space is below minimum threshold.
FilteredResultForwarder	Variant of `ResultForwarder` that only allows an allowlist of `TestDescription` to be reported.
FixedByteArrayOutputStream	An in-memory `ERROR(/OutputStream)` that only keeps a maximum amount of data.
FlashingMethod	An enum to describe the method used to flash device under test
FlashingResourcesParser	A class that parses out required versions of auxiliary image files needed to flash a device.
FlashingResourcesParser.AndroidInfo	A typedef for `Map<String, MultiMap<String, String>>` .
FlashingResourcesParser.Constraint	A filtering interface, intended to allow `FlashingResourcesParser` to ignore some resources that it otherwise might use
FlashingResourceUtil	This utility helps setting the appropriate version of artifacts so they can be flashed via `DeviceFlashPreparer` .
FoldableExpandingHandler	A `IModuleParameterHandler` expanding into more for each non-primary foldable configuration.
FoldableHandler	Generic foldable handler that can take the foldable parameters to create a specialized module.
FoldableModePreparer	A target preparer that can switch the foldable state of a device.
FolderBuildInfo	Concrete implementation of a `IFolderBuildInfo` .
FolderSaver	A `ITargetPreparer` that pulls directories off device, compresses and saves it into logging backend.
FormattedGeneratorReporter	Reporter that allows to generate reports in a particular format.
FreeDeviceState
FuseUtil	A helper class for FUSE operations.

G

GceAvdInfo	Structure to hold relevant data for a given GCE AVD instance.
GceAvdInfo.GceStatus
GceAvdInfo.LogFileEntry
GceManager	Helper that manages the GCE calls to start/stop and collect logs from GCE.
GceRemoteCmdFormatter	Utility class to format commands to reach a remote gce device.
GceRemoteCmdFormatter.ScpMode	SCP can be used to push or pull file depending of the structure of the args.
GceSshTunnelMonitor	Thread Monitor for the Gce ssh tunnel.
GcovCodeCoverageCollector	A `BaseDeviceMetricCollector` that will pull gcov coverage measurements off of the device and log them as test artifacts.
GcovKernelCodeCoverageCollector	A `BaseDeviceMetricCollector` that will pull gcov kernel coverage measurements out of debugfs and off of the device and then finally logs them as test artifacts.
GCSBucketUtil	File manager to download and upload files from Google Cloud Storage (GCS).
GCSBucketUtil.GCSFileMetadata	Simple wrapper for file info in GCS.
GCSCommon	Base class for Gcs operation like download and upload.
GCSConfigurationFactory	A `ConfigurationFactory` loads configs from Google Cloud Storage.
GCSConfigurationFactory.GCSConfigLoader	Extension of `ConfigurationFactory.ConfigLoader` that loads config from GCS, tracks the included configurations from one root config, and throws an exception on circular includes.
GCSConfigurationServer	Config server loads configs from Google Cloud Storage (GCS).
GCSDownloaderHelper	Downloader for GCS bucket that takes care of caching and resolving the global config.
GCSFileDownloader	File downloader to download file from google cloud storage (GCS).
GCSFileUploader	File uploader to upload file data to google cloud storage (GCS).
GCSHostResourceManager	Download host resource from GCS (Google cloud storage).
GcsRemoteFileResolver	Implementation of `IRemoteFileResolver` that allows downloading from a GCS bucket.
GenericLogcatEventParser <LogcatEventType>	Parse logcat input for events.
GenericLogcatEventParser.LogcatEvent	Struct to hold a logcat event with the event type and triggering logcat message
GetPreviousPassedHelper	Helper to get the previous passed test filters.
GkiDeviceFlashPreparer	A target preparer that flash the device with android common kernel generic image.
GlobalConfiguration	An `IGlobalConfiguration` implementation that stores the loaded config objects in a map
GlobalFilterGetter	Service implementation that returns the filters of a given invocation.
GlobalTestFilter	Filter options applied to the invocation.
GoogleApiClientUtil	Utils for create Google API client.
GoogleBenchmarkResultParser	Parses the results of Google Benchmark that run from shell, and return a map with all the results.
GoogleBenchmarkTest	A Test that runs a Google benchmark test package on given device.
GranularRetriableTestWrapper	A wrapper class works on the `IRemoteTest` to granulate the IRemoteTest in testcase level.
GranularRetriableTestWrapper.StartEndCollector	Class helper to catch missing run start and end.
GsiDeviceFlashPreparer	A target preparer that flashes the device with android generic system image.
GTest	A Test that runs a native test package on given device.
GTestBase	The base class of gTest
GTestListTestParser	A result parser for gtest dry run mode with "--gtest_list_tests" parameter.
GTestResultParser	Parses the 'raw output mode' results of native tests using GTest that run from shell, and informs a ITestInvocationListener of the results.
GTestXmlResultParser	Parses the 'xml output mode' results of native tests using GTest that run from shell, and informs a ITestRunListener of the results.

H

HarnessException	Base exception class for exception thrown within the harness.
HarnessRuntimeException
HeapHostMonitor	`AbstractHostMonitor` implementation that monitors the heap memory on the host and log it periodically to the history log.
HelloWorldMultiTargetPreparer	An example implementation of a `IMultiTargetPreparer` .
HistoryLogger	TF History Logger, special log that contains only some specific events.
HostGTest	A Test that runs a native test package.
HostMetric	This class represents a host metric sample to be reported.
HostOptions	Host options holder class.
HostStatsdMetricCollector	A `IMetricCollector` that collects statsd metrics from host side using statsd utility commands.
HostTest	A test runner for JUnit host based tests.
HostUtils	Implements some useful utility methods for running host tests.
HprofAllocSiteParser	Helper class to parse info from an Allocation Sites section of hprof reports.
HttpHelper	Contains helper methods for making http requests
HttpHelper.RequestRunnable	Runnable for making requests with `IRunUtil#runEscalatingTimedRetry(long, long, long, long, IRunnableResult)` .
HttpMultipartPost	Helper class for making multipart HTTP post requests.
HttpRemoteFileResolver	Implementation of `IRemoteFileResolver` that allows downloading remote file via http
HttpsRemoteFileResolver	Implementation of `IRemoteFileResolver` that allows downloading remote file via https

I

IAbi	Interface representing the ABI under test.
IAbiReceiver	A test that needs the ABI under test.
IAndroidDebugBridge	Interface definition for `AndroidDebugBridge` methods used in this package.
IAppBuildInfo	This interface is deprecated. Use `IBuildInfo` directly.
IAutoRetriableTest	Interface for an `IRemoteTest` that doesn't implement `ITestFilterReceiver` but still wishes to support auto-retry.
IBatteryInfo	The interface defining the interaction with a battery of a device.
IBatteryInfo.BatteryState	Describes the current battery charging state.
IBuildInfo	Holds information about the build under test.
IBuildInfo.BuildInfoProperties	Some properties that a `IBuildInfo` can have to tweak some handling of it.
IBuildProvider	Responsible for providing info regarding the build under test.
IBuildReceiver	A test that needs reference to the build under test.
IClusterClient	An interface for interacting with the TFC backend.
IClusterEvent	Interface for any cluster event to be uploaded to TFC.
IClusterEventUploader <T extends IClusterEvent >	Interface for ClusterEventUploader
IClusterOptions	An interface for getting cluster-related options.
ICommandOptions	Container for execution options for commands.
ICommandScheduler	A scheduler for running TradeFederation commands.
ICommandScheduler.IScheduledInvocationListener	Listener for invocation events when invocation completes.
ICompressionStrategy	An interface representing a compression algorithm that can be selected at runtime.
IConfigOptionValueTransformer	An interface for manipulating config option value
IConfigurableVirtualDevice	An interface to provide information about a possibly preconfigured virtual device info (host ip, host user, ports offset and etc.).
IConfiguration	Configuration information for a TradeFederation invocation.
IConfigurationFactory	Factory for creating `IConfiguration` s
IConfigurationReceiver	Simple interface to represent object that accepts an `IConfiguration` .
IConfigurationServer	An interface for config server.
ICredentialFactory	An interface for credential factory to create oauth2 `Credential` .
IDefaultObjectLoader	Interface for loading the default objects that should be part of our YAML configuration.
IDefaultObjectLoader.LoaderConfiguration	The loading configuration object to pass information to the loader.
IDeviceActionReceiver	Provides an API to receive device events.
IDeviceBuildInfo	A `IBuildInfo` that represents a complete Android device build and (optionally) its tests.
IDeviceBuildProvider	A `IBuildProvider` that uses information from a `ITestDevice` to retrieve a build.
IDeviceConfiguration	Device Configuration Holder Interface.
IDeviceFlasher	Flashes a device image on a device.
IDeviceFlasher.UserDataFlashOption	Enum of options for handling the userdata image
IDeviceManager	Interface for managing the set of available devices for testing.
IDeviceManager.IFastbootListener	A listener for fastboot state changes.
IDeviceMonitor	Interface for monitoring state of devices.
IDeviceMonitor.DeviceLister	A `ERROR(/Runnable)` -like class that should return the known devices and their states.
IDeviceRecovery	Interface for recovering a device that has gone offline.
IDeviceSelection	Interface for device selection criteria.
IDeviceSelection.BaseDeviceType
IDeviceStateMonitor	Provides facilities for monitoring the state of a `IDevice` .
IDeviceTest	Interface for object that needs a reference to a `ITestDevice` .
IDisableable	Interface that describes a Tradefed object that can be disabled.
IEmail	Interface for sending email.
IEmail.Message	Container for email message data.
IFileDownloader	Interface for downloading a remote file.
IFileEntry	Interface definition that provides simpler, mockable contract to `FileEntry` methods.
IFileResolverLoader	Loads implementations of `IRemoteFileResolver` .
IFileResolverLoader.ResolverLoadingException	Exception thrown if a resolver cannot be loaded or initialized.
IFlashingResourcesParser	Interface for providing required versions of auxiliary image files needed to flash a device.
IFlashingResourcesRetriever	Interface for retrieving auxiliary image files needed to flash a device.
IFolderBuildInfo	A simple abstract `IBuildInfo` whose build artifacts are containing in a local filesystem directory.
IFormatterGenerator	Interface describing a formatter for `SuiteResultHolder` .
IGlobalConfiguration	A class to encompass global configuration information for a single Trade Federation instance (encompassing any number of invocations of actual configurations).
IHarnessException	Description of the harness exception interface that will be implemented by harness exceptions.
IHostCleaner	Cleans up the host after the test run has finished.
IHostHealthAgent	An interface to emit host or device metrics.
IHostMonitor	Interface to dispatch host data
IHostMonitor.HostDataPoint	Generic class for data to be reported.
IHostMonitor.HostMetricType
IHostOptions	Host options holder interface.
IHostOptions.PermitLimitType	Enum describing the possible permit limiters
IHostResourceManager	Interface to manager host resource.
IHttpHelper	Helper methods for performing http requests.
IHttpHelper.DataSizeException
IInvocationContext	Holds information about the Invocation for the tests to access if needed.
IInvocationContext.TimingEvent
IInvocationContextReceiver	A test that needs reference to the context of the invocation.
IInvocationExecution	Interface describing the actions that will be done as part of an invocation.
IKeyStoreClient	Interface to access a key store for password or sensitive data.
IKeyStoreFactory	Factory for creating `IKeyStoreClient` .
ILabPreparer	Marker interface for lab preparers See `ITargetPreparer` for a description of what these interfaces are intended.
ILeveledLogOutput	Classes which implement this interface provides methods that deal with outputting log messages.
ILogcatReceiver	A class that provides the output of a device's logcat as an `InputStreamSource` .
ILogRegistry	An interface for a `ILogOutput` singleton logger that multiplexes and manages different loggers.
ILogRegistry.EventType	Events that are useful to be logged
ILogSaver	Classes which implement this interface provide methods for storing logs to a central location.
ILogSaverListener	Allows for `ITestInvocationListener` s to listen for when log files are saved.
IManagedTestDevice	A ITestDevice whose lifecycle is managed.
IManagedTestDevice.DeviceEventResponse	Container for a response to a `IManagedTestDevice#handleAllocationEvent(DeviceEvent)` call
IManagedTestDeviceFactory	Creator interface for `IManagedTestDevice` s
IMetricCollector	This interface will be added as a decorator when reporting tests results in order to collect matching metrics.
IMetricCollectorReceiver	Interface for `IRemoteTest` s to implement if they need to get the list of `IMetricCollector` s for the test run.
IMoblyYamlResultHandler	Interface of mobly yaml result handler.
IMoblyYamlResultHandler.ITestResult	Interface of mobly yaml result
IModuleController	Interface for controlling if a module should be executed or not.
IModuleController.RunStrategy	Enum describing how the module should be executed.
IModuleParameterHandler	The interface for parameters of suites modules.
IMultiDeviceRecovery	Interface for recovering multiple offline devices.
IMultiDeviceTest	This interface is deprecated. This interface is kept temporarily for compatibility but is not actually used anymore. Please do not implement it.
IMultiTargetPreparer	Prepares the test environment for several devices together.
INativeDevice	Provides an reliable and slightly higher level API to a ddmlib `IDevice` .
INativeDeviceTest	Interface for object that needs a reference to a `INativeDevice` .
InfraErrorIdentifier	Error Identifiers from Trade Federation infra, and dependent infra (like Build infra).
InputStreamSource	This interface basically wraps an `ERROR(/InputStream)` to make it clonable.
InstallAllTestZipAppsSetup	A `ITargetPreparer` that installs all apps in a test zip.
InstallApexModuleTargetPreparer
InstallApkSetup	A `ITargetPreparer` that installs one or more apks located on the filesystem.
InstallBuildEnvApkSetup	A `ITargetPreparer` that installs one or more test apks from an Android platform build env.
InstalledInstrumentationsTest	Runs all instrumentation found on current device.
InstantAppHandler	Handler for `ModuleParameters#INSTANT_APP` .
InstrumentationPreparer	A `ITargetPreparer` that runs instrumentation
InstrumentationTest	A Test that runs an instrumentation test package on given device.
InvocationContext	Generic implementation of a `IInvocationContext` .
InvocationExecution	Class that describes all the invocation steps: build download, target_prep, run tests, clean up.
InvocationLocal <T>	This class provides invocation-scope variables.
InvocationMetricLogger	A utility class for an invocation to log some metrics.
InvocationMetricLogger.InvocationGroupMetricKey	Grouping allows to log several groups under a same key.
InvocationMetricLogger.InvocationMetricKey	Some special named key that we will always populate for the invocation.
InvocationStatus	A class to store invocation status.
InvocationStatus	A helper enum to represent the invocation status
InvocationSummaryHelper	Helper class for gathering and reporting `TestSummary` for set of listeners
InvocationToJUnitResultForwarder	A class that listens to `ITestInvocationListener` events and forwards them to a `TestListener` .
IPostProcessor	Post processors is a Trade Federation object meant to allow the processing of metrics and logs AFTER the tests and BEFORE result reporting.
IRemoteFeature	Interface describing a feature in Tradefed that can be executed based on the request.
IRemoteFileResolver	Interface for objects that can resolve a remote file into a local one.
IRemoteFileResolver.RemoteFileResolverArgs	The args passed to the resolvers
IRemoteFileResolver.ResolvedFile	Class holding information about the resolved file and some metadata.
IRemoteScheduledListenersFeature	Extension of `IRemoteFeature` to support passing in `IScheduledInvocationListener` s.
IRemoteTest	A test that reports results directly to a `ITestInvocationListener` .
IReportNotExecuted	In case of an incomplete execution, `IRemoteTest` that implements this interface may report their non-executed tests for improved reporting.
IRescheduler	Interface for rescheduling a config for future execution.
IResourceMetricCollector	The interface for user to implement customized resource collectors.
IRestApiHelper	A helper interface for performing REST API calls.
IResumableTest	This interface is deprecated. No need for this anymore
IRetryDecision	Interface driving the retry decision and applying the filter on the class for more targeted retry.
IRuntimeHintProvider
IRunUtil	Interface for running timed operations and system commands.
IRunUtil.EnvPriority	Enum that defines whether setting or unsetting a particular env.
IRunUtil.IRunnableResult	An interface for asynchronously executing an operation that returns a boolean status.
ISandbox	Interface defining a sandbox that can be used to run an invocation.
ISandboxFactory	Factory for creating `ISandbox` .
ISetOptionReceiver	Implementation of this interface should have an `Option` with a "set-option" name linked to `HostTest#SET_OPTION_NAME` .
IShardableListener	A `ITestInvocationListener` that can be sharded.
IShardableTest	A `IRemoteTest` that can be split into separately executable sub-tests.
IShardHelper	Interface of an object that describes the sharding strategy to adopt for a configuration.
IsolatedHostTest	Implements a TradeFed runner that uses a subprocess to execute the tests in a low-dependency environment instead of executing them on the main process.
ISupportGranularResults	Interface specifying whether a `ITestInvocationListener` supports receiving the granular results or not.
ISystemStatusChecker	An checker that performs checks on system status and returns a boolean to indicate if the system is in an expected state.
ISystemStatusCheckerReceiver	A `IRemoteTest` that requires access to the `ISystemStatusChecker` from the configuration.
ITargetCleaner	This interface is deprecated. tearDown has been moved to the base ITargetPreparer interface.
ITargetPreparer	Prepares the test environment for the test run.
ITerribleFailureHandler	An interface to handle terrible failures from `LogUtil.CLog.wtf(String, Throwable)`
ITestAnnotationFilterReceiver	A runner that can filter which tests to run based on annotations.
ITestCollector	Provides support for test collection; when set, test runner must perform a dry run to collect test cases without actually executing them.
ITestDevice	Provides an reliable and slightly higher level API to a ddmlib `IDevice` .
ITestDevice.ApexInfo	A simple struct class to store information about a single APEX
ITestDevice.MountPointInfo	A simple struct class to store information about a single mountpoint
ITestDevice.RecoveryMode
ITestFileFilterReceiver	A runner that can receive a file specifying which tests to run and/or not to run.
ITestFilterReceiver	A runner that can filter which tests to run.
ITestInformationReceiver	Interface to receive the `TestInformation` for some classes.
ITestInvocation	Handles one TradeFederation test invocation.
ITestInvocation.ExitInformation	Represents some exit information for an invocation.
ITestInvocationListener	Listener for test results from the test invocation.
ITestLifeCycleReceiver	Receives event notifications during instrumentation test runs.
ITestLogger	An entity that can perform logging of data streams of various types.
ITestLoggerReceiver	An entity that can be injected with an `ITestLogger` instance so that it can be used for logging purposes.
ITestsPool	Interface describing a pool of tests that we can access and run
ITestSuite	Abstract class used to run Test Suite.
ITestSuite.MultiDeviceModuleStrategy
ITestSuiteResultLoader	Interface describing an helper to load previous results in a way that can be re-run.
ITestSummaryListener	Interface that allows `ITestInvocationListener` to exchange some limited information via summaries.
ITestsZipInstaller	Installs tests from a tests zip file (as outputted by the build system) on a device.
ITokenProvider	Interface describing an object that can provide the tokens of a particular device.
ITokenRequest	Interface a `IRemoteTest` can implement to expose the fact that it requires a device with a special token.

J

JarHostTest	Test runner for host-side JUnit tests.
JarHostTest.HostTestListener	Wrapper listener that forwards all events except testRunStarted() and testRunEnded() to the embedded listener.
JavaCodeCoverageCollector	A `BaseDeviceMetricCollector` that will pull Java coverage measurements off of the device and log them as test artifacts.
JavaCodeCoverageFlusher	A utility class that resets and forces a flush of Java code coverage measurements from processes running on the device.
JSONFileKeyStoreClient	A sample implementation where a local JSON file acts a key store.
JSONFileKeyStoreFactory	Implementation of a JSON KeyStore Factory, which provides a `JSONFileKeyStoreClient` for accessing a JSON Key Store File.
JsonHttpTestResultReporter	A result reporter that encode test metrics results and branch, device info into JSON and POST into an HTTP service endpoint
JUnit4ResultForwarder	Result forwarder from JUnit4 Runner.
JUnit4TestFilter	Helper Class that provides the filtering for JUnit4 runner by extending the `Filter` .
JUnitRunUtil	A helper class for directing a `IRemoteTest#run(TestInformation, ITestInvocationListener)` call to a `Test#run(TestResult)` call.
JUnitToInvocationResultForwarder	A class that listens to `TestListener` events and forwards them to an `ITestInvocationListener` .
JUnitXmlParser	Parser that extracts test result data from JUnit results stored in ant's XMLJUnitResultFormatter and forwards it to a ITestInvocationListener.

K

KeyguardControllerState	A container for the keyguard states.
KeyguardStatusChecker	Checks the keyguard status after module execution.
KeyStoreException	Thrown when a fatal key store error happens.
KillExistingEmulatorPreparer	A `ITargetPreparer` that shuts down a running emulator.
KnownFailurePreparer	Target preparer to skip retrying known failure.

L

LabResourceDeviceMonitor	The lab resource monitor which initializes/manages the gRPC server for LabResourceService.
LargeOutputReceiver	A class designed to help run long running commands collect output.
LastShardDetector	When running local sharding, sometimes we only want to execute some actions when the last shard reaches `invocationEnded(long)` .
LaunchCvdHelper	Utility helper to control Launch_cvd in the Cuttlefish VM.
LeakedThreadStatusChecker	Status checker to ensure a module does not leak a running Thread.
LegacySubprocessResultsReporter	A frozen implementation of the subprocess results reporter which should remain compatible with earlier versions of TF/CTS (eg 8+), despite changes in its superclass.
ListInstrumentationParser	A `IShellOutputReceiver` that parses the output of a 'pm list instrumentation' query
ListInstrumentationParser.InstrumentationTarget
LocalAndroidVirtualDevice	The class for local virtual devices running on TradeFed host.
LocalAppBuildProvider	A `IBuildProvider` that constructs a `IBuildInfo` based on a provided local path
LocalDeveloper	Detects and returns whether this is a local developer running Tradefed.
LocalDeviceBuildProvider	A `IBuildProvider` that constructs a `IDeviceBuildInfo` based on a provided filesystem directory path.
LocalEmulatorLaunch	A TargetPreparer that launches an emulator locally from an android build environment.
LocalEmulatorSnapshot	A TargetPreparer intended for generating a clean emulator snapshot from a android build/development environment
LocalFileHeader	LocalFileHeader is a class containing the information of a file/folder inside a zip file.
LocalFileResolver	Implementation of `IRemoteFileResolver` that allows linking local files
LocalFolderBuildProvider	A `IBuildProvider` that constructs a `IFolderBuildInfo` based on a provided local path
LocalHostResourceManager	Manager host resource.
LocalPool	Implementation of a pool of local tests
LocalRunInstructionBuilder	Utility to compile the instruction to run test locally.
LockSettingsBaselineSetter	A setter to remove screen lock settings.
LogcatCrashResultForwarder	Special listener: on failures (instrumentation process crashing) it will attempt to extract from the logcat the crash and adds it to the failure message associated with the test.
LogcatEventParser
LogcatEventType	Event types for `LogcatEventParser` .
LogcatOnFailureCollector	Collector that will capture and log a logcat when a test case fails.
LogcatReceiver	Class that collects logcat in background.
LogcatTimingMetricCollector	A metric collector that collects timing information (eg user switch time) from logcat during one or multiple repeated tests by using given regex patterns to parse start and end signals of an event from logcat lines.
LogDataType	Represents the data type of log data.
LogFile	Class to hold the metadata for a saved log file.
LogFileSaver	A helper for `ITestInvocationListener` 's that will save log data to a file
LogReceiver
LogRegistry	A `ILogRegistry` implementation that multiplexes and manages different loggers, using the appropriate one based on the `ERROR(/ThreadGroup)` of the thread making the call.
LogSaverResultForwarder	A `ResultForwarder` for saving logs with the global file saver.
LogUtil	A logging utility class.
LogUtil.CLog	A shim class for `Log` that automatically uses the simple classname of the caller as the log tag

M

MainlineModuleHandler	A simple handler class for Mainline Modules that creates a InstallApexModuleTargetPreparer and injects the dynamic link into it based on the given mainline modules to automatically retrieve those modules.
MainlineTestModuleController	Base class for a module controller to run tests based on the preloaded mainline modules on the device under test.
ManagedRemoteDevice	A device running inside a virtual machine that we manage remotely via a Tradefed instance inside the VM.
ManagedTestDeviceFactory	Factory to create the different kind of devices that can be monitored by Tf
MaxSdkModuleController	Base class for a module controller to not run tests on versions above a specified SDK version number.
MergedZipEntryCollection	Merge individual zip entries in a large zip file into blocks to minimize the download attempts.
MergeMultiBuildTargetPreparer	A `IMultiTargetPreparer` that allows to pass information from one build to another by naming them and the file key to copy to the other build.
MergeStrategy	Describes how the results should be aggregated when multiple attempts are present.
MetricFilePostProcessor	Used for uploading the metrics log file collected during the test and run level.
MetricOption	Annotation for test methods annotated with `@Test` , or if the annotation is part of the annotation list of `TestDescription` that allows to specify some extra parameters useful for: Tuning the behavior of the collectors, filtering some methods.
MetricsXMLResultReporter	MetricsXMLResultReporter writes test metrics and run metrics to an XML file in a folder specified by metrics-folder parameter at the invocationEnded phase of the test.
MetricTestCase	Extension of `TestCase` that allows to log metrics when running as part of TradeFed.
MetricTestCase.LogHolder	Structure to hold a log file to be reported.
MetricUtil	Utility class for pulling metrics from pushed statsd configurations.
MetricUtility	Contains common utility methods for storing the test metrics, aggregating the metrics in similar tests and writing the metrics to a file.
MinApiLevelModuleController	Base class for a module controller to not run tests when it below a specified API Level.
MinSdkModuleController	Base class for a module controller to not run tests on versions below a specified SDK version number.
MixImageZipPreparer	An `IMultiTargetPreparer` that mixes a system build's images in a device build.
MixKernelTargetPreparer	A `ITargetPreparer` that allows to mix a kernel image with the device image.
MoblyBinaryHostTest	Host test meant to run a mobly python binary file from the Android Build system (Soong)
MoblyYamlResultControllerInfoHandler	Mobly yaml result 'Controller Info' element handler.
MoblyYamlResultControllerInfoHandler.ControllerInfo
MoblyYamlResultControllerInfoHandler.ControllerInfo.Builder
MoblyYamlResultHandlerFactory	Mobly yaml result handler factory which generates appropriate handler based on result type.
MoblyYamlResultHandlerFactory.InvalidResultTypeException
MoblyYamlResultHandlerFactory.Type
MoblyYamlResultParser	Mobly yaml test results parser.
MoblyYamlResultRecordHandler	Mobly yaml result 'Record' element handler.
MoblyYamlResultRecordHandler.Record
MoblyYamlResultRecordHandler.Record.Builder
MoblyYamlResultRecordHandler.RecordResult
MoblyYamlResultSummaryHandler	Mobly yaml result 'Summary' element handler.
MoblyYamlResultSummaryHandler.Summary
MoblyYamlResultSummaryHandler.Summary.Builder
MoblyYamlResultTestNameListHandler	Mobly yaml result 'Test Name List' element handler.
MoblyYamlResultTestNameListHandler.TestNameList
MoblyYamlResultTestNameListHandler.TestNameList.Builder
MoblyYamlResultUserDataHandler	Mobly yaml result 'User Data' element handler.
MoblyYamlResultUserDataHandler.UserData
MoblyYamlResultUserDataHandler.UserData.Builder
ModifiedFilesParser	Class responsible to parse and extract information from modified_files.json.
ModuleDefinition	Container for the test run configuration.
ModuleListener	Listener attached to each `IRemoteTest` of each module in order to collect the list of results.
ModuleLogcatCollector	Version of logcat collector but for module.
ModuleMerger	Helper class for operation related to merging `ITestSuite` and `ModuleDefinition` after a split.
ModuleOemTargetPreparer
ModuleParameters	Special values associated with the suite "parameter" keys in the metadata of each module.
ModuleParametersHelper	Helper to get the `IModuleParameterHandler` associated with the parameter.
ModulePusher
ModulePusher.ModulePushError	Fatal error during Mainline module push.
ModuleSplitter	Helper to split a list of modules represented by `IConfiguration` into a list of execution units represented by `ModuleDefinition` .
MultiFailureDescription	Collect multiple `FailureDescription` in one holder.
MultiMap <K, V>	A `ERROR(/Map)` that supports multiple values per key.

N

NameMangleListener	A proxy listener to translate test method, class, and package names as results are reported.
NativeBenchmarkTest	A Test that runs a native benchmark test executable on given device.
NativeBenchmarkTestParser	A `IShellOutputReceiver` that parses the benchmark test data output, collecting metrics on average time per operation.
NativeBridgeModuleController	A module controller to check if a device support native bridge.
NativeCodeCoverageFlusher	A utility class that clears native coverage measurements and forces a flush of native coverage data from processes on the device.
NativeDevice	Default implementation of a `ITestDevice` Non-full stack android devices.
NativeDevice.AdbAction	A `ERROR(DeviceAction/com.android.tradefed.device.NativeDevice.DeviceAction DeviceAction)` for running a OS 'adb ....' command.
NativeDevice.AdbShellAction
NativeDevice.RebootDeviceAction	`ERROR(DeviceAction/com.android.tradefed.device.NativeDevice.DeviceAction DeviceAction)` for rebooting a device.
NativeDevice.RebootMode	A mode of a reboot.
NativeDeviceStateMonitor	Helper class for monitoring the state of a `IDevice` with no framework support.
NativeLeakCollector	A `ITargetPreparer` that runs 'dumpsys meminfo --unreachable -a' to identify the unreachable native memory currently held by each process.
NativeStressTest	A Test that runs a native stress test executable on given device.
NativeStressTestParser	A `IShellOutputReceiver` that parses the stress test data output, collecting metrics on number of iterations complete and average time per iteration.
NegativeHandler	Handler that specify that nothing should be done and the parameter should not create any extra module.
NestedDeviceStateMonitor	Device state monitor that executes extra checks on nested device to accommodate the specifics of the virtualized environment.
NestedRemoteDevice	Representation of the device running inside a remote Cuttlefish VM.
NetworkNotAvailableException	Thrown when a device is not able to connect to network for testing.
NoApkTestSkipper	Special preparer that allows to skip an invocation completely (preparation and tests) if there are no apks to tests.
NoDeviceException	Thrown when there's no device to execute a given command.
NoisyDryRunTest	Run noisy dry run on a command file.
NoOpConfigOptionValueTransformer	An no-op `IConfigOptionValueTransformer`
NotMultiAbiHandler	Special handler that notify the `SuiteModuleLoader` that the secondary abi should not create a module.
NullDevice	A placeholder `IDevice` used by `DeviceManager` to allocate when `IDeviceSelection#nullDeviceRequested()` is `true`

O

OpenObjectLoader	Loader for the default objects available in AOSP.
Option	Annotates a field as representing a `IConfiguration` option.
Option.Importance
OptionClass	Annotates a class as representing a `IConfiguration` object.
OptionCopier	A helper class that can copy `Option` field values with same names from one object to another.
OptionDef	Holds the details of an `Option` .
OptionFetcher	Helper to get the test options from the parent process.
OptionNotAllowedException	Specific `ConfigurationException` when an option is not allowed to be passed in the command line.
OptionSetter	Populates `Option` fields.
OptionSetter.OptionFieldsForName	Container for the list of option fields with given name.
OptionUpdateRule	Controls the behavior when an option is specified multiple times.
OtaDeviceBuildInfo	A `IDeviceBuildInfo` used for over-the-air update testing.
OtatoolsBuildInfo	An `IBuildInfo` that contains otatools artifacts.
OtaZipfileBuildProvider	Provides a `IBuildInfo` based on a local OTA zip file.
OxygenClient	A class that manages the use of Oxygen client binary to lease or release Oxygen device.
OxygenUtil	Utility to interact with Oxygen service.

P

PackageInfo	Container for an application's package info parsed from device.
PackageInstalledModuleController	Module controller to not run tests when the device has not got the given packages installed.
Pair <A, B>	Define our own Pair class which contains two objects.
PairingMultiTargetPreparer	A multi-target preparer helps make Bluetooth pairing (and connection) between two devices.
ParallelDeviceExecutor <V>	Wrapper of `ERROR(/ExecutorService)` to execute a function in parallel.
ParentSandboxInvocationExecution	Version of `InvocationExecution` for the parent invocation special actions when running a sandbox.
ParentShardReplicate	Replicate a setup for one device to all other devices that will be part of sharding.
PassingTestFileReporter	A `ITestInvocationListener` that saves the list of passing test cases to a test file
PerfettoGenericPostProcessor	A post processor that processes text/binary metric perfetto proto file into key-value pairs by recursively expanding the proto messages and fields with string values until the field with numeric value is encountered.
PerfettoGenericPostProcessor.AlternativeParseFormat
PerfettoGenericPostProcessor.METRIC_FILE_FORMAT
PerfettoPreparer	Perfetto preparer pushes the config file in to the device at a standard location to which perfetto have access to.
PerfettoPullerMetricCollector	Base implementation of `FilePullerDeviceMetricCollector` that allows pulling the perfetto files from the device and collect the metrics from it.
PerfettoPullerMetricCollector.METRIC_FILE_FORMAT
PerfettoTraceRecorder	A utility class for recording perfetto trace on a `ITestDevice` .
PrettyPrintDelimiter	Helper utility that helps to print delimited message that stands out.
PrettyTestEventLogger	Logger matching the events and logging them in order to make it easier to debug.
ProcessInfo	Used to store process related(USER, PID, NAME, START TIME IN SECOND SINCE EPOCH) information.
ProfileParameterHandler	Base parameter handler for any profile user.
ProfileTargetPreparer	Base class for setting up target preparer for any profile user `android.os.usertype.profile.XXX` .
PropertyChanger	A utility class for changing (or adding) items in an Android property file
ProtoResultParser	Parser for the Tradefed results proto format.
ProtoResultParser.TestLevel	Enumeration representing the current level of the proto being processed.
ProtoResultReporter	Result reporter build a `TestRecord` protobuf with all the results inside.
ProtoUtil	Utility methods for dealing with protobuf messages type-agnostically.
ProxyConfiguration	Object that allows pointing to a remote configuration to execute.
PsParser	Utility used to parse(USER,PID and NAME) from the "ps" command output
PtsBotTest	Run PTS-bot tests.
PushFileInvoker	This class is deprecated. Use `PushFilePreparer` instead
PushFilePreparer	A `ITargetPreparer` that attempts to push any number of files from any host path to any device path.
PythonBinaryHostTest	Host test meant to run a python binary file from the Android Build system (Soong) The test runner supports include-filter and exclude-filter.
PythonBinaryHostTest.PythonForwarder	Result forwarder to replace the run name by the binary name.
PythonUnitTestResultParser	Interprets the output of tests run with Python's unittest framework and translates it into calls on a series of `ITestInvocationListener` s.
PythonUnitTestRunner	This class is deprecated. Use `PythonBinaryHostTest` instead.
PythonVirtualenvHelper	A helper class for activating Python 3 virtual environment.
PythonVirtualenvPreparer	Sets up a Python virtualenv on the host and installs packages.

Q

QuotationAwareTokenizer

R

RebootReasonCollector	Collector that collects device reboot during the test run and report them by reason and counts.
RebootTargetPreparer	Target preparer that reboots the device.
RecoveryLogPreparer	A target preparer used to collect logs before recovery.
RegexTrie <V>	The RegexTrie is a trie where each stored segment of the key is a regex `ERROR(/Pattern)` .
RemoteAndroidDevice	Implementation of a `ITestDevice` for a full stack android device connected via adb connect.
RemoteAndroidVirtualDevice	Extends `RemoteAndroidDevice` behavior for a full stack android device running in the Google Compute Engine (Gce).
RemoteAvdIDevice	A placeholder `IDevice` used by `DeviceManager` to allocate when `DeviceSelectionOptions.gceDeviceRequested()` is `true`
RemoteFileResolver	A simple class that allows one to load files from a variety of places using URIs and the service provider functionality.
RemoteFileUtil	Utility class to handle file from a remote instance
RemoteInvocationExecution	Implementation of `InvocationExecution` that drives a remote execution.
RemoteInvocationExecution.FileOptionValueTransformer
RemoteSshUtil	Utility to execute ssh commands on remote instances.
RemoteTestTimeOutEnforcer	Listeners that allows to check the execution time of a given test config and fail it if it goes over a given timeout.
RemoteZip	Utilities to unzip individual files inside a remote zip file.
RemoveSystemAppPreparer	A `ITargetPreparer` for removing an apk from the system partition before a test run.
ReportPassedTests	Report in a file possible filters to exclude passed test.
ResolvePartialDownload	Resolve a partial download request.
ResourceMetricUtil	Utility functions for composing metrics.
ResourceUtil	Utility for reading configuration resources.
RestApiHelper	A helper class for performing REST API calls.
RestartSystemServerTargetPreparer	Target preparer that restarts the system server without rebooting the device.
ResultAggregator	Special forwarder that aggregates the results when needed, based on the retry strategy that was taken.
ResultAndLogForwarder	Forwarder for results and logs events.
ResultForwarder	A `ITestInvocationListener` that forwards invocation results to a list of other listeners.
ResultsPlayer	Special runner that replays the results given to it.
RetentionFileSaver	Helper class for creating a .retention file in a directory.
RetryConfigurationFactory	Factory that handles retrying a command.
RetryLogSaverResultForwarder	Forwarder that also handles passing the current attempt we are at.
RetryPreparationDecision	A Class to describe the decisions about whether or not to retry preparation and to fail the module run.
RetryRescheduler	A special runner that allows to reschedule a previous run tests that failed or where not executed.
RetryRescheduler.RetryType	The types of the tests that can be retried.
RetryResultForwarder	An Extension of `ResultForwarder` that always push to a given attempt number.
RetryResultHelper	Helper class to determine which module or test should run or not.
RetryStatistics	Structure holding the statistics for a retry session of one `IRemoteTest` .
RetryStrategy	The Retry Strategy to be used when re-running some tests.
RootTargetPreparer	Target preparer that performs "adb root" or "adb unroot" based on option "force-root".
RunAftersWithInfo
RunBeforesWithInfo
RunCommandTargetPreparer
RunConfigDeviceRecovery	Generic base `IMultiDeviceRecovery` to run a tradefed configuration to do the recovery step.
RunHostCommandTargetPreparer	Target preparer to run arbitrary host commands before and after running the test.
RunHostScriptTargetPreparer	Target preparer which executes a script before running a test.
RunInterruptedException	Thrown when a run operation is interrupted by an external request.
RunNotifierWrapper	Wrapper of `RunNotifier` so we can carry the `DeviceNotAvailableException` .
RunOnCloneProfileParameterHandler
RunOnCloneProfileTargetPreparer
RunOnSdkSandboxHandler	Handler for `ModuleParameters#RUN_ON_SDK_SANDBOX` .
RunOnSdkSandboxTargetPreparer	An `ITargetPreparer` to marks that tests should run in the sdk sandbox.
RunOnSecondaryUserParameterHandler
RunOnSecondaryUserTargetPreparer	An `ITargetPreparer` that creates a secondary user in setup, and marks that tests should be run in that user.
RunOnSystemUserTargetPreparer	An `ITargetPreparer` that marks that tests should be run on the user (rather than the current user).
RunOnWorkProfileParameterHandler
RunOnWorkProfileTargetPreparer	An `ITargetPreparer` that creates a work profile in setup, and marks that tests should be run in that user.
RuntimeRestartCollector	Collector that collects timestamps of runtime restarts (system server crashes) during the test run, if any.
RunUtil	A collection of helper methods for executing operations.
RustBenchmarkResultParser	Interprets the output of tests run with Criterion benchmarking framework and translates it into calls on a series of `ITestInvocationListener` s.
RustBinaryHostTest	Host test meant to run a rust binary file from the Android Build system (Soong)
RustBinaryTest	A Test that runs a rust binary on given device.
RustTestBase	Base class of RustBinaryHostTest and RustBinaryTest
RustTestBase.EnvPair
RustTestBase.Invocation
RustTestResultParser	Interprets the output of tests run with Rust's unittest framework and translates it into calls on a series of `ITestInvocationListener` s.

S

SandboxConfigDump	Runner class that creates a `IConfiguration` based on a command line and dump it to a file.
SandboxConfigDump.DumpCmd
SandboxConfigurationException	Special Configuration Exception coming from the Sandbox setup.
SandboxConfigurationFactory	Special Configuration factory to handle creation of configurations for Sandboxing purpose.
SandboxConfigUtil	A utility class for managing `IConfiguration` when doing sandboxing.
SandboxedInvocationExecution	Special sandbox execution of the invocation: This is the InvocationExection for when we are inside the sandbox running the command.
SandboxInvocationRunner	Run the tests associated with the invocation in the sandbox.
SandboxOptions	Class that can receive and provide options to a `ISandbox` .
ScreenshotOnFailureCollector	Collector that will capture and log a screenshot when a test case fails.
Sdk28ModuleController	A module controller to check if a device is on SDK 28 (Android 9) or above.
Sdk29ModuleController	Only run tests if the device under test is SDK version 29 or above.
Sdk30ModuleController	Only run tests if the device under test is SDK version 30 or above.
Sdk31ModuleController	Only run tests if the device under test is SDK version 31 or above.
Sdk32ModuleController	Only run tests if the device under test is SDK version 32 or above.
Sdk33ModuleController	Only run tests if the device under test is SDK version 33 or above.
SecondaryUserHandler	Handler for `ModuleParameters#SECONDARY_USER` .
SecondaryUserOnDefaultDisplayHandler	Handler for `ModuleParameters#SECONDARY_USER_ON_DEFAULT_DISPLAY` .
SecondaryUserOnSecondaryDisplayHandler	Handler for `ModuleParameters#SECONDARY_USER_ON_SECONDARY_DISPLAY` .
SemaphoreTokenTargetPreparer	This is a preparer used to use token to serialize test excution in tradefed host.
SerializationUtil	Utility to serialize/deserialize an object that implements `ERROR(/Serializable)` .
ServiceAccountKeyCredentialFactory	A credential factory to create service account key based oauth `Credential` .
SettingsBaselineSetter	A common setter to handle device baseline settings via ITestDevice.setSetting.
ShardBuildCloner	Helper class that handles cloning a build info from the command line.
ShardHelper	Helper class that handles creating the shards and scheduling them for an invocation.
ShardListener	A `ITestInvocationListener` that collects results from a invocation shard (aka an invocation split to run on multiple resources in parallel), and forwards them to another listener.
ShardMainResultForwarder	A `ResultForwarder` that combines the results of a sharded test invocations.
ShellOutputReceiverStream	Utility subclass of OutputStream that writes into an IShellOutputReceiver.
ShellStatusChecker	Check if the shell status is as expected before and after a module run.
ShippingApiLevelModuleController	Run tests if the device meets the following conditions: If `min-api-level` is defined: The device shipped with the `min-api-level` or later.
ShowmapPullerMetricCollector	Base implementation of `FilePullerDeviceMetricCollector` that allows pulling the showmap files from the device and collect the metrics from it.
SideloadOtaTargetPreparer	A target preparer that performs sideload of a specified OTA package, applies the package, waits for device to boot up, and injects the device build properties to use as build info This target preparer assumes that the device will be in regular adb mode when started, and will ensure that the device exits in the same mode but with the newer build applied.
SimpleFileLogger	A `ILeveledLogOutput` that directs log messages to stdout and to a single log file.
SimplePerfResult	Object to hold all simpleperf test results
SimplePerfStatResultParser	A utility class to parse simpleperf result.
SimplePerfUtil	Utility class to dispatch simple command and collect results
SimplePerfUtil.SimplePerfType	Enum of simpleperf command options
SimpleStats	A small utility class that calculates a few statistical measures given a numerical dataset.
SizeLimitedOutputStream	A thread safe file backed `ERROR(/OutputStream)` that limits the maximum amount of data that can be written.
SkipHWASanModuleController	Base class for a module controller to not run tests on HWASan builds.
Sl4aBluetoothUtil	A utility class provides Bluetooth operations on one or two devices using SL4A
Sl4aBluetoothUtil.BluetoothAccessLevel	Enums for Bluetooth device access level which are based on `BluetoothDevice.java`
Sl4aBluetoothUtil.BluetoothConnectionState	Enums for Bluetooth connection states which are based on `BluetoothProfile.java`
Sl4aBluetoothUtil.BluetoothPriorityLevel	Enums for Bluetooth profile priority level which are based on `BluetoothProfile.java`
Sl4aBluetoothUtil.BluetoothProfile	Enums for Bluetooth profiles which are based on `BluetoothProfile.java`
Sl4aClient	Sl4A client to interact via RPC with SL4A scripting layer.
Sl4aEventDispatcher	Event dispatcher polls for event and queue them by name to be queried.
Sl4aEventDispatcher.EventSl4aObject	Object returned by the event poller.
SnapshotInputStreamSource	A File-backed InputStreamSource.
SparseImageUtil	Utility to unsparse sparse images.
SparseImageUtil.SparseInputStream	SparseInputStream read from upstream and detects the data format.
StatsdBeforeAfterGaugeMetricPostProcessor	A post processor that processes gauge metrics collected in a "before/after" approach, ie
StatsdEventMetricPostProcessor	A post processor that processes event metrics in statsd reports into key-value pairs, using the formatters specified on the processor.
StatsdGenericPostProcessor	A post processor that processes binary proto statsd reports into key-value pairs by expanding the report as a tree structure.
StatusCheckerResult	Contains the result of a `ISystemStatusChecker` execution.
StatusCheckerResult.CheckStatus
StdoutLogger	A `ILeveledLogOutput` that directs log messages to stdout.
StopServicesSetup	A `ITargetPreparer` that stops services on the device.
StreamProtoReceiver	A receiver that translates proto TestRecord received into Tradefed events.
StreamProtoResultReporter	An implementation of `ProtoResultReporter`
StreamUtil	Utility class for managing input streams.
StrictShardHelper	Sharding strategy to create strict shards that do not report together,
StringEscapeUtils	Utility class for escaping strings for specific formats.
StringUtil	Utility class for escaping strings for common string manipulation.
StubBuildProvider	No-op empty implementation of a `IBuildProvider` .
StubDevice	Stub placeholder implementation of a `IDevice` .
StubKeyStoreClient	Default stub implementation for KeyStore Client.
StubKeyStoreFactory	Default stub implementation for KeyStore Factory
StubLocalAndroidVirtualDevice	A placeholder `IDevice` used by `DeviceManager` to allocate when `DeviceSelectionOptions.localVirtualDeviceRequested()` is `true`
StubMultiTargetPreparer	Placeholder empty implementation of a `IMultiTargetPreparer` .
StubTargetPreparer	Placeholder empty implementation of a `ITargetPreparer` .
StubTest	No-op empty test implementation.
StubTestRunListener	Stub implementation of `ITestRunListener`
SubprocessCommandException	A subprocess command failed to run.
SubprocessConfigBuilder	Build a wrapper TF config XML for an existing TF config.
SubprocessEventHelper	Helper to serialize/deserialize the events to be passed to the log.
SubprocessEventHelper.BaseTestEventInfo	Base Helper for TestIgnored information.
SubprocessEventHelper.FailedTestEventInfo	Helper for testFailed information.
SubprocessEventHelper.InvocationEndedEventInfo	Helper for invocation ended information.
SubprocessEventHelper.InvocationFailedEventInfo	Helper for InvocationFailed information.
SubprocessEventHelper.InvocationStartedEventInfo	Helper for invocation started information.
SubprocessEventHelper.LogAssociationEventInfo	Helper for logAssociation information.
SubprocessEventHelper.TestEndedEventInfo	Helper for testEnded information.
SubprocessEventHelper.TestLogEventInfo	Helper for testLog information.
SubprocessEventHelper.TestModuleStartedEventInfo	Helper for test module started information.
SubprocessEventHelper.TestRunEndedEventInfo	Helper for testRunEnded Information.
SubprocessEventHelper.TestRunFailedEventInfo	Helper for testRunFailed information
SubprocessEventHelper.TestRunStartedEventInfo	Helper for testRunStarted information
SubprocessEventHelper.TestStartedEventInfo	Helper for testStarted information
SubprocessExceptionParser	Helper to handle the exception output from standard Tradefed command runners.
SubprocessReportingHelper	A class to build a wrapper configuration file to use subprocess results reporter for a cluster command.
SubprocessResultsReporter	Implements `ITestInvocationListener` to be specified as a result_reporter and forward from the subprocess the results of tests, test runs, test invocations.
SubprocessTestResultsParser	Extends `ERROR(/FileOutputStream)` to parse the output before writing to the file so we can generate the test events on the launcher side.
SubprocessTestResultsParser.StatusKeys	Relevant test status keys.
SubprocessTfLauncher	A `IRemoteTest` for running tests against a separate TF installation.
SuiteApkInstaller	Installs specified APKs for Suite configuration: either from $ANDROID_TARGET_OUT_TESTCASES variable or the ROOT_DIR in build info.
SuiteModuleLoader	Retrieves Compatibility test module definitions from the repository.
SuiteModuleLoader.ConfigFilter	A `ERROR(/FilenameFilter)` to find all the config files in a directory.
SuiteResultHolder	Helper object to ease up serializing and deserializing the invocation results.
SuiteResultReporter	Collect test results for an entire suite invocation and output the final results.
SuiteResultReporter.ModulePrepTimes	Object holder for the preparation and tear down time of one module.
SuiteTestFilter	Represents a filter for including and excluding tests.
SwitchUserTargetPreparer	A `ITargetPreparer` that switches to the specified user kind in setUp.
SystemServerFileDescriptorChecker	Checks if system server appears to be running out of FDs.
SystemServerStatusChecker	Check if the pid of system_server has changed from before and after a module run.
SystemUpdaterDeviceFlasher	A `IDeviceFlasher` that relies on the system updater to install a system image bundled in a OTA update package.
SystemUtil	Utility class for making system calls.
SystemUtil.EnvVariable

T

TableBuilder	Helper class to display a matrix of String elements in a table.
TableFormatter	Helper class to display a matrix of String elements so each element column is lined up
TargetFileUtils
TargetFileUtils.FilePermission
TargetSetupError	A fatal error occurred while preparing the target for testing.
TarUtil	Utility to manipulate a tar file.
TcpDevice	A placeholder `IDevice` used by `DeviceManager` to allocate when `DeviceSelectionOptions.tcpDeviceRequested()` is `true`
TearDownPassThroughPreparer	Allows for running tearDown on preparers that are included in a config as an object.
TelephonyHelper	A utility to use and get information related to the telephony.
TelephonyHelper.SimCardInformation	An information holder for the sim card related information.
TelephonyTokenProvider	Token provider for telephony related tokens.
TemperatureThrottlingWaiter	An `ITargetPreparer` that waits until device's temperature gets down to target
TemplateResolutionError	Class extending `ConfigurationException` for template related error during configuration parsing.
TerribleFailureEmailHandler	A simple handler class that sends an email to interested people when a WTF (What a Terrible Failure) error occurs within a Trade Federation instance.
TestAppInstallSetup	A `ITargetPreparer` that installs one or more apps from a `IDeviceBuildInfo.getTestsDir()` folder onto device.
TestContext	A class to model a TestContext message of TFC API.
TestDependencyResolver	Helper to resolve dependencies if needed.
TestDescription	Class representing information about a test case.
TestDescriptionsFile	A utility class for marshalling and unmarshalling a list of TestDescriptions to a test file.
TestDevice	Implementation of a `ITestDevice` for a full stack android device
TestDevice.MicrodroidBuilder	A builder used to create a Microdroid TestDevice.
TestDeviceOptions	Container for `ITestDevice` `Option` s
TestDeviceOptions.InstanceType
TestDeviceState	A more fully featured representation of device state than `DeviceState` .
TestEnvironment	A class to model a TestEnvironment message returned by TFC API.
TestErrorIdentifier	Error identifier from tests and tests runners.
TestFailureListener	Listener used to take action such as screenshot, bugreport, logcat collection upon a test failure when requested.
TestFailureModuleController	Controller for module that simply want to tune how the tests failures log collected are behaving.
TestFilePushSetup	A `ITargetPreparer` that pushes one or more files/dirs from a `IDeviceBuildInfo.getTestsDir()` folder onto device.
TestFilterHelper	Helper class for filtering tests
TestGroupStatus	A class to store status of a test group.
TestInfo	Stores the test information set in a TEST_MAPPING file.
TestInformation	Holder object that contains all the information and dependencies a test runner or test might need to execute properly.
TestInformation.Builder	Builder to create a `TestInformation` instance.
TestInvocation	Default implementation of `ITestInvocation` .
TestInvocation.RunMode	The different mode an invocation can run into.
TestInvocation.Stage
TestInvocationManagementServer	GRPC server helping to management test invocation and their lifecycle.
TestInvocationManagementServer.InvocationInformation
TestMapping	A class for loading a TEST_MAPPING file.
TestMappingSuiteRunner	Implementation of `BaseTestSuite` to run tests specified by option include-filter, or TEST_MAPPING files from build, as a suite.
TestOption	Stores the test option details set in a TEST_MAPPING file.
TestOutputUploader	Uploads test output files to local file system, GCS, or an HTTP(S) endpoint.
TestRecordInterpreter	Utility to convert a `TestRecord` proto into a more easily manipulable format in Tradefed.
TestRecordProtoUtil	Utility to read the `TestRecord` proto from a file.
TestResource	A class to model a TestResource message returned by TFC API.
TestResourceDownloader	A class to download test resource files from file system/GCS/HTTP.
TestResult	Container for a result of a single test.
TestResultListener	A simplification of ITestLifecycleListener for implementers that only care about individual test results.
TestRunnerUtil	A utility class to help various test runners.
TestRunResult	Holds results from a single test run.
TestRunToTestInvocationForwarder	Forwarder from ddmlib `ITestRunListener` to `ITestLifeCycleReceiver` .
TestsPoolPoller	Tests wrapper that allow to execute all the tests of a pool of tests.
TestSuiteInfo	A class that resolves loading of build related metadata for test suite To properly expose related info, a test suite must include a `test-suite-info.properties` file in its jar resources
TestSummary	A class to represent a test summary.
TestSummary.Type
TestSummary.TypedString
TestSystemAppInstallSetup	A `ITargetPreparer` that installs one or more apps from a `IDeviceBuildInfo.getTestsDir()` folder onto the /system partition on device.
TestTimeoutEnforcer	Listeners that allows to check the execution time of a given test case and fail it if it goes over a given timeout.
TextResultReporter	A test result reporter that forwards results to the JUnit text result printer.
TfMetricProtoUtil	Utility class to help with the Map to Map transition.
TfObjectTracker	A utility to track the usage of the different Trade Fedederation objects.
TfSuiteRunner	Implementation of `ITestSuite` which will load tests from TF jars res/config/suite/ folder.
TfTestLauncher	A `IRemoteTest` for running unit or functional tests against a separate TF installation.
TimeStatusChecker	Status checker to ensure that the device and host time are kept in sync.
TimeUtil	Contains time related utility methods.
TimeVal	This is a sentinel type which wraps a `Long` .
TimeWaster	A simple target preparer to waste time and potentially restart the device.
TokenProperty	Supported token with dynamic sharding.
TokenProviderHelper	Helper that gives the provider associated to a particular token, in order to find out if a device supports the token.
TraceCmdCollector	A `IMetricCollector` that collects traces during the test using trace-cmd, and logs them to the invocation.
TracePropagatingExecutorService	An executor service that forwards tasks to an underlying implementation while propagating the tracing context.
TracingLogger	Class that helps to manage tracing for each test invocation.
TradefedConfigObject	A class to model a TradefedConfigObject message of TFC API.
TradefedConfigObject.Type	A list of configuration object types which can be injected to a cluster command config.
TradefedDelegator	Objects that helps delegating the invocation to another Tradefed binary.
TradefedFeatureClient	A grpc client to request feature execution from the server.
TradefedFeatureServer	A server that responds to requests for triggering features.
TradefedSandbox	Sandbox container that can run a Trade Federation invocation.
TradefedSandboxFactory	Default implementation for SandboxFactory
TradefedSandboxRunner	Runner associated with a `TradefedSandbox` that will allow executing the sandbox.
TradefedSandboxRunner.StubScheduledInvocationListener	A stub `IScheduledInvocationListener` that does nothing.

U

UiAutomatorRunner	Runs UI Automator test on device and reports results.
UiAutomatorTest
UiAutomatorTest.LoggingOption
UiAutomatorTest.TestFailureAction
UnexecutedTestReporterThread	Threads that takes care of reporting all unexecuted tests.
UniqueMultiMap <K, V>	A `MultiMap` that ensures unique values for each key.
UsbResetMultiDeviceRecovery	A `IMultiDeviceRecovery` which resets USB buses for offline devices.
UsbResetRunConfigRecovery	Allow to trigger a command to reset the USB of a device
UsbResetTest	An `IRemoteTest` that reset the device USB and checks whether the device comes back online afterwards.
UserChecker	Checks if users have changed during the test.
UserCleaner	A `ITargetPreparer` that removes secondary users on teardown.
UserInfo	Similar to UserInfo class from platform.
UserInfo.UserType	Supported variants of a user's type in external APIs.

V

ValidateSuiteConfigHelper	This class will help validating that the `IConfiguration` loaded for the suite are meeting the expected requirements: - No Build providers - No Result reporters
VersionedFile	Data structure representing a file that has an associated version.
VersionParser	Fetch the version of the running tradefed artifacts.
VisibleBackgroundUserPreparer	Target preparer for running tests in a user that is started in the visible in the background.
VmRemoteDevice	A Remote virtual device that we will manage from inside the Virtual Machine.

W

WaitDeviceRecovery	A simple implementation of a `IDeviceRecovery` that waits for device to be online and respond to simple commands.
WaitForDeviceDatetimePreparer	A `ITargetPreparer` that waits for datetime to be set on device Optionally this preparer can force a `TargetSetupError` if datetime is not set within timeout, or force host datetime onto device,
WifiHelper	Helper class for manipulating wifi services on device.
WifiPreparer	A `ITargetPreparer` that configures wifi on the device if necessary.

X

XmlFormattedGeneratorReporter	Implementation of the `FormattedGeneratorReporter` which format the suite results in an xml format.
XmlResultReporter	Writes JUnit results to an XML files in a format consistent with Ant's XMLJUnitResultFormatter.
XmlSuiteResultFormatter	Utility class to save a suite run as an XML.
XmlSuiteResultFormatter.RunHistory	Helper object for JSON conversion.

Y

YamlClassOptionsParser Helper to parse test runner information from the YAML Tradefed Configuration.

Z

ZipCompressionStrategy	An `ICompressionStrategy` for creating zip archives.
ZipUtil	A helper class for compression-related operations
ZipUtil2	A helper class for zip extraction that takes POSIX file permissions into account