Starting March 27, 2025, we recommend using android-latest-release instead of aosp-main to build and contribute to AOSP. For more information, see Changes to AOSP.

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.
AbiFormatter	Utility class for abi.
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.
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.
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.
AltDirBehavior	An enum to define alternative directory behaviors for various test artifact installers/pushers
AppBuildInfo	A `IBuildInfo` that represents an Android application and its test package(s).
AppDeviceBuildInfo	This class is deprecated. Use `IDeviceBuildInfo` directly.
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.
ATestFileSystemLogSaver	This LogSaver class is used by ATest to save logs in a specific path.
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.
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.
BinaryState	Enum used to record ON/OFF state with a IGNORE no-op state.
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, i.e.
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.
BuildInfo	Generic implementation of a `IBuildInfo` that should be associated with a `ITestDevice`.
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.
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.

C

CecControllerTokenProvider	Token provider for Consumer Electronics Control (CEC) related tokens.
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`
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
CollectingByteOutputReceiver	A `IShellOutputReceiver` which collects the whole shell output into a `byte[]`.
CollectingOutputReceiver	A `IShellOutputReceiver` which collects the whole shell output into one `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
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.
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
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.
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 (e.g. if a config has the same object twice, the first one will have the first appearance number).
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.
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
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 `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.
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`.
CoverageOptions	Tradefed object to hold coverage options.
CoverageOptions.Toolchain
CreateAvdPreparer
CreateUserPreparer	Target preparer for creating user and cleaning it up at the end.

D

DebugHostLogOnFailureCollector	Collector that will gather and log the host-side logs when a test case failure occurs.
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.
DeviceAvailableChecker	Checker to ensure a module doesn't leave the device in an offline state.
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 (e.g.
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.
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.
DeviceFlashPreparer.EncryptionOptions	Enum of options for handling the encryption of userdata image
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.
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.
DeviceProperties	Common constant definitions for device side property names
DeviceRecoveryModeUtil
DeviceResetFeature	Server side implementation of device reset.
DeviceResetHandler	Utility handling generically device resetting.
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.
DeviceStorageStatusChecker	Check if device has enough disk space for the given partitions.
DeviceUnavailableMonitor	This listener attempts to capture a test case level DNAE only.
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.
DirectedGraph<V>	A directed unweighted graphs implementation.
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`.

E

EmmaXmlConstants	Constants used when parsing emma xml report.
EmulatorMemoryCpuCapturer
EnforcedSeLinuxChecker	Status checker that ensures the status of Selinux.
EventsLoggerListener	Listener that logs all the events it receives into a file
ExistingBuildProvider	A `IBuildProvider` that returns an already constructed `IBuildInfo`.
ExtendedFile	A extension of standard file to carry a build related metadata.

F

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
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.
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 (i.e.
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.
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.
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`.
FormattedGeneratorReporter	Reporter that allows to generate reports in a particular format.

G

GceAvdInfo	Structure to hold relevant data for a given GCE AVD instance.
GceAvdInfo.GceStatus
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.
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.
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.
GetPreviousPassedHelper	Helper to get the previous passed test filters.
GkiDeviceFlashPreparer	A target preparer that flash the device with android common kernel generic image.
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.
GranularRetriableTestWrapper	A wrapper class works on the `IRemoteTest` to granulate the IRemoteTest in testcase level.
GsiDeviceFlashPreparer	A target preparer that flashes the device with android generic system image.

H

HelloWorldMultiTargetPreparer	An example implementation of a `IMultiTargetPreparer`.
HistoryLogger	TF History Logger, special log that contains only some specific events.
HprofAllocSiteParser	Helper class to parse info from an Allocation Sites section of hprof reports.
HttpRemoteFileResolver	Implementation of `IRemoteFileResolver` that allows downloading remote file via http
HttpsRemoteFileResolver	Implementation of `IRemoteFileResolver` that allows downloading remote file via https

I

IAbiReceiver	A test that needs the ABI under test.
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.
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.
IConfiguration	Configuration information for a TradeFederation invocation.
IConfigurationFactory	Factory for creating `IConfiguration`s
IConfigurationReceiver	Simple interface to represent object that accepts an `IConfiguration`.
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.
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 `Runnable`-like class that should return the known devices and their states.
IDeviceSelection	Interface for device selection criteria.
IDeviceTest	Interface for object that needs a reference to a `ITestDevice`.
IDisableable	Interface that describes a Tradefed object that can be disabled.
IFileDownloader	Interface for downloading a remote file.
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`.
IHostCleaner	Cleans up the host after the test run has finished.
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.
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
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.
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.
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.
INativeDeviceTest	Interface for object that needs a reference to a `INativeDevice`.
InstallApexModuleTargetPreparer
InstantAppHandler	Handler for `ModuleParameters#INSTANT_APP`.
InstrumentationResultProtoParser	Parses the instrumentation result proto collected during instrumentation test run and informs ITestRunListener of the results.
InvocationContext	Generic implementation of a `IInvocationContext`.
InvocationExecution	Class that describes all the invocation steps: build download, target_prep, run tests, clean up.
InvocationScope	Scopes a single Tradefed invocation.
InvocationScoped
InvocationScopeModule	Guice module that can be used anywhere in a TF invocation to requests the Guice-Tradefed supported objects.
InvocationStatus	A class to store invocation status.
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.
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
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`.
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.
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.
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.
ITestSuite	Abstract class used to run Test Suite.
ITestSuiteResultLoader	Interface describing an helper to load previous results in a way that can be re-run.
ITestsZipInstaller	Installs tests from a tests zip file (as outputted by the build system) on a device.

J

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.
JsonHttpTestResultReporter	A result reporter that encode test metrics results and branch, device info into JSON and POST into an HTTP service endpoint
JUnit4TestFilter	Helper Class that provides the filtering for JUnit4 runner by extending the `Filter`.
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

KeyguardStatusChecker	Checks the keyguard status after module execution.
KillExistingEmulatorPreparer	A `ITargetPreparer` that shuts down a running emulator.

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 (e.g. 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
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
LocalFileResolver	Implementation of `IRemoteFileResolver` that allows linking local files
LocalFolderBuildProvider	A `IBuildProvider` that constructs a `IFolderBuildInfo` based on a provided local path
LocalRunInstructionBuilder	Utility to compile the instruction to run test locally.
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.
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 `ThreadGroup` of the thread making the call.
LogSaverResultForwarder	A `ResultForwarder` for saving logs with the global file saver.

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
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.
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.
ModuleDefinition	Container for the test run configuration.
ModuleListener	Listener attached to each `IRemoteTest` of each module in order to collect the list of results.
ModuleMerger	Helper class for operation related to merging `ITestSuite` and `ModuleDefinition` after a split.
ModuleOemTargetPreparer
ModuleOemTargetPreparer.ModuleInfo	A simple struct class to store information about a module
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.
ModuleSplitter	Helper to split a list of modules represented by `IConfiguration` into a list of execution units represented by `ModuleDefinition`.

N

NameMangleListener	A proxy listener to translate test method, class, and package names as results are reported.
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 `DeviceAction` for running a OS 'adb ....' command.
NativeDevice.AdbShellAction
NativeDevice.RebootDeviceAction	`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.
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.
NoDeviceException	Thrown when there's no device to execute a given command.
NoisyDryRunTest	Run noisy dry run on a command file.
NotMultiAbiHandler	Special handler that notify the `SuiteModuleLoader` that the secondary abi should not create a module.

O

OpenObjectLoader	Loader for the default objects available in AOSP.
OptionCopier	A helper class that can copy `Option` field values with same names from one object to another.
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.
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.

P

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.
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
PrettyPrintDelimiter	Helper utility that helps to print delimited message that stands out.
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

Q

QuotationAwareTokenizer

R

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`
RemoteFileUtil	Utility class to handle file from a remote instance
RemoteInvocationExecution	Implementation of `InvocationExecution` that drives a remote execution.
RemoteManager	Class that receives `RemoteOperation`s via a socket.
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.
ReportPassedTests	Report in a file possible filters to exclude passed test.
ResourceMetricUtil	Utility functions for composing metrics.
RestApiHelper	A helper class for performing REST API calls.
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.
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`.
RunCommandTargetPreparer
RunConfigDeviceRecovery	Generic base `IMultiDeviceRecovery` to run a tradefed configuration to do the recovery step.
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.

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.
SecondaryUserHandler	Handler for `ModuleParameters#SECONDARY_USER`.
SerializationUtil	Utility to serialize/deserialize an object that implements `ERROR(/Serializable)`.
ServiceAccountKeyCredentialFactory	A credential factory to create service account key based oauth `Credential`.
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.
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.
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.
StatusCheckerResult	Contains the result of a `ISystemStatusChecker` execution.
StatusCheckerResult.CheckStatus
StdoutLogger	A `ILeveledLogOutput` that directs log messages to stdout.
StreamProtoReceiver	A receiver that translates proto TestRecord received into Tradefed events.
StreamProtoResultReporter	An implementation of `ProtoResultReporter`
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`.
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.
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.
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
TarUtil	Utility to manipulate a tar file.
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.
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.
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
TestEnvironment	A class to model a TestEnvironment message returned by TFC API.
TestFailureListener	Listener used to take action such as screenshot, bugreport, logcat collection upon a test failure when requested.
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.
TestInvocation	Default implementation of `ITestInvocation`.
TestInvocation.RunMode	The different mode an invocation can run into.
TestInvocation.Stage
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	A class to upload test output files to GCS/HTTP.
TestRecordInterpreter	Utility to convert a `TestRecord` proto into a more easily manipulable format in Tradefed.
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.
TestResultListener	A simplification of ITestLifecycleListener for implementers that only care about individual test results.
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
TextResultReporter	A test result reporter that forwards results to the JUnit text result printer.
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.
TimeVal	This class is deprecated. use `Duration` instead.
TokenProviderHelper	Helper that gives the provider associated to a particular token, in order to find out if a device supports the token.
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

UnexecutedTestReporterThread	Threads that takes care of reporting all unexecuted tests.
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.

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
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.
WifiHelper	Helper class for manipulating wifi services on device.

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.