Spectatio: Automotive Test Framework

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Spectatio is an open source test framework developed for testing Android Automotive OS (AAOS) on real and virtual devices. Spectatio provides APIs for testing apps on an automotive device and is an extendable and scalable solution used for verifying the functionality and performance of AAOS and its apps.

High-level design

The Spectatio framework is adaptable and expandable for various AAOS UI implementations. It's used for testing the functionality and performance of AAOS on device hardware, emulators, and virtualized environments.

The following figure explains the high-level design of the Spectatio framework.

spectatio-design

Figure 1. Spectatio framework high-level design

Built on top of UI Automator, the Spectatio framework provides a set of APIs to build UI tests that interact with user and system apps on AAOS. Automotive tests use the APIs provided by the Spectatio framework for testing, which makes these tests independent of the device under test (DUT) and scalable to test varied devices, if supported.

Figure 1 shows that the Spectatio framework is modularized based on reference apps such as Dialer, Medicenter, and Settings using app-specific interfaces and helpers, making it easily extendable for new apps. The Spectatio framework reuses the common standard and utility helper classes. The standard helper class is the parent class for all the application helper functions and provides standard functions that are device specific or applicable across apps. The utility helper classes provide utilities such as reading or writing files from the device.

Architecture

In order to provide a set of APIs to build UI tests, the Spectatio framework implements app-specific interfaces and helpers while extending the existing standard helper class and importing the utility helper classes.

The following figure explains the high-level architecture of the Spectatio framework and all the entities involved in implementing APIs for testing an app.

spectatio-arch

Figure 2. Spectatio framework high-level architecture

The application helper interface provides a blueprint for the implementation of an application helper. It consists of various helper functions that are needed for testing apps. Each app has its own interface, such as IAutoSettingHelper and IAutoDialHelper. For more information and a list of interface functions, see the application helper interface functions on AOSP.

The standard helper class consists of standard attributes and functions that are required for device setup but aren’t specific to any app, such as pressHome and scroll. The standard helper class is defined in AbstractAutoStandardAppHelper.java.

The utility helper classes are used by the framework. For example, AutoJsonUtility.java is a
utility class that loads the given device JSON configuration file and updates the framework configurations at runtime.

The application helper implementation module is the core of the Spectatio framework. It contains the implementation for the helper functions defined in the application helper interface, which are required for testing apps on an automotive device. Each app has its own implementation, such as SettingHelperImpl and DialHelperImpl, used by the Automotive tests for testing the apps. For more information and a list of implementations, see the application helper implementation functions 'on AOSP.

Automotive Tests use the application helper implementation functions to test various operations related to the app. Use the HelperAccessor class to gain access to the application helper implementation functions.

The following code shows the setup, cleanup, and execution of a sample automotive test.

@RunWith(AndroidJUnit4.class)
public class AutoApplicationTest {
  static HelperAccessor<IAutoApplicationHelper> autoApplicationHelper =
          new HelperAccessor<>(IAutoApplicationHelper.class);

  public AutoApplicationTest() {
    // constructor
    // Initialize any attributes that are required for the test execution
  }

  @Before
  public void beforeTest() {
    // Initial setup before each test
    // For example - open the application
    autoApplicationHelper.open();
  }

  @After
  public void afterTest() {
    // Cleanup after each test.
    // For example - exit the application
    autoApplicationHelper.exit();
  }

  @Test
  public void testApplicationFeature() {
    // Test
    // For example - Test if application is open
    assertTrue("Application is not open.", autoApplicationHelper.isOpen());
  }
}

Customization

The Spectatio framework is independent of the device UI, so it’s scalable for testing devices with varied UIs and hardware. To achieve this scalability, Spectatio uses default device configurations based on the reference device. To support nondefault device configurations, the framework uses a JSON configuration file at runtime to set the desired UI changes for the device. A JSON configuration file supports UI elements like TEXT, DESCRIPTION, and RESOURCE_ID, along with path settings and must contain only the information about the UI changes for the DUT. The rest of the UI elements use the default configuration values provided in the framework.

Default device configurations

The following sample JSON configuration file shows the available device configurations and their default values.

Click the plus sign to see a sample JSON configuration file

    {
        "SETTINGS": {
                "APPLICATION_CONFIG": {
                        "SETTINGS_TITLE_TEXT": "Settings",
                        "SETTINGS_PACKAGE": "com.android.car.settings",
                        "SETTINGS_RRO_PACKAGE": "com.android.car.settings.googlecarui.rro",
                        "OPEN_SETTINGS_COMMAND": "am start -a android.settings.SETTINGS",
                        "OPEN_QUICK_SETTINGS_COMMAND": "am start -n com.android.car.settings/com.android.car.settings.common.CarSettingActivity"
                },
                "QUICK_SETTINGS": {
                        "OPEN_MORE_SETTINGS": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "toolbar_menu_item_1",
                                "PACKAGE": "com.android.car.settings"
                        },
                        "NIGHT_MODE": {
                                "TYPE": "TEXT",
                                "VALUE": "Night mode"
                        }
                },
                "DISPLAY": {
                        "PATH": "Settings > Display",
                        "OPTIONS": [
                                "Brightness level"
                        ],
                        "BRIGHTNESS_LEVEL": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "seekbar",
                                "PACKAGE": "com.android.car.settings"
                        }
                },
                "SOUND": {
                        "PATH": "Settings > Sound",
                        "OPTIONS": [
                                "Media volume",
                                "Alarm volume"
                        ]
                },
                "NETWORK_AND_INTERNET": {
                        "PATH": "Settings > Network & internet",
                        "OPTIONS": [
                        ],
                        "TOGGLE_WIFI": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "master_switch",
                                "PACKAGE": "com.android.car.settings"
                        }
                },
                "BLUETOOTH": {
                        "PATH": "Settings > Bluetooth",
                        "OPTIONS": [
                        ],
                        "TOGGLE_BLUETOOTH": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "car_ui_toolbar_menu_item_switch",
                                "PACKAGE": "com.android.car.settings"
                        }
                },
                "APPS_AND_NOTIFICATIONS": {
                        "PATH": "Settings > Apps & notifications",
                        "OPTIONS": [
                        ],
                        "SHOW_ALL_APPS": {
                                "TYPE": "TEXT",
                                "VALUE": "Show all apps"
                        },
                        "ENABLE_DISABLE_BUTTON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "car_ui_toolbar_menu_item_text",
                                "PACKAGE": "com.android.car.settings"
                        },
                        "DISABLE_BUTTON_TEXT": {
                                "TYPE": "TEXT",
                                "VALUE": "Disable"
                        },
                        "ENABLE_BUTTON_TEXT": {
                                "TYPE": "TEXT",
                                "VALUE": "Enable"
                        },
                        "DISABLE_APP_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "DISABLE APP"
                        },
                        "FORCE_STOP_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "Force stop"
                        },
                        "OK_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "OK"
                        },
                        "PERMISSIONS_MENU": {
                                "TYPE": "TEXT",
                                "VALUE": "Permissions"
                        },
                        "ALLOW_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "Allow"
                        },
                        "DENY_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "Deny"
                        },
                        "DENY_ANYWAY_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "Deny anyway"
                        }
                },
                "DATE_AND_TIME": {
                        "PATH": "Settings > Date & time",
                        "OPTIONS": [
                                "Automatic date & time",
                "Automatic time zone"
                        ],
                        "AUTOMATIC_DATE_AND_TIME": {
                                "TYPE": "TEXT",
                                "VALUE": "Automatic date & time"
                        },
                        "AUTOMATIC_TIME_ZONE": {
                                "TYPE": "TEXT",
                                "VALUE": "Automatic time zone"
                        },
                        "SET_DATE": {
                                "TYPE": "TEXT",
                                "VALUE": "Set date"
                        },
                        "SET_TIME": {
                                "TYPE": "TEXT",
                                "VALUE": "Set time"
                        },
                        "SELECT_TIME_ZONE": {
                                "TYPE": "TEXT",
                                "VALUE": "Select time zone"
                        },
                        "USE_24_HOUR_FORMAT": {
                                "TYPE": "TEXT",
                                "VALUE": "Use 24-hour format"
                        },
                        "OK_BUTTON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "toolbar_menu_item_0",
                                "PACKAGE": "com.android.car.settings"
                        },
                        "NUMBER_PICKER_WIDGET": {
                                "TYPE": "CLASS",
                                "VALUE": "android.widget.NumberPicker"
                        },
                        "EDIT_TEXT_WIDGET": {
                                "TYPE": "CLASS",
                                "VALUE": "android.widget.EditText"
                        }
                },
                "USERS": {
                        "PATH": "Settings > Users",
                        "OPTIONS": [
                                "Guest"
                        ]
                },
                "ACCOUNTS": {
                        "PATH": "Settings > Accounts",
                        "OPTIONS": [
                                "Automatically sync data"
                        ],
                        "ADD_ACCOUNT": {
                                "TYPE": "TEXT",
                                "VALUE": "ADD ACCOUNT"
                        },
                        "ADD_GOOGLE_ACCOUNT": {
                                "TYPE": "TEXT",
                                "VALUE": "Google"
                        },
                        "SIGN_IN_ON_CAR_SCREEN": {
                                "TYPE": "TEXT",
                                "VALUE": "Sign in on car screen"
                        },
                        "GOOGLE_SIGN_IN_SCREEN": {
                                "TYPE": "TEXT",
                                "VALUE": "Sign in to your Google Account"
                        },
                        "ENTER_EMAIL": {
                                "TYPE": "CLASS",
                                "VALUE": "android.widget.EditText"
                        },
                        "ENTER_PASSWORD": {
                                "TYPE": "CLASS",
                                "VALUE": "android.widget.EditText"
                        },
                        "NEXT_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "Next"
                        },
                        "DONE_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "Done"
                        },
                        "REMOVE_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "Remove"
                        },
                        "REMOVE_ACCOUNT_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "Remove Account"
                        }
                },
                "SYSTEM": {
                        "PATH": "Settings > System",
                        "OPTIONS": [
                                "About", "Legal information"
                        ],
                        "ABOUT_MENU": {
                                "TYPE": "TEXT",
                                "VALUE": "About"
                        },
                        "RESET_OPTIONS_MENU": {
                                "TYPE": "TEXT",
                                "VALUE": "Reset options"
                        },
                        "LANGUAGES_AND_INPUT_MENU": {
                                "TYPE": "TEXT",
                                "VALUE": "Languages & input"
                        },
                        "DEVICE_MODEL": {
                                "TYPE": "TEXT",
                                "VALUE": "Model"
                        },
                        "ANDROID_VERSION": {
                                "TYPE": "TEXT",
                                "VALUE": "Android version"
                        },
                        "ANDROID_SECURITY_PATCH_LEVEL": {
                                "TYPE": "TEXT",
                                "VALUE": "Android security patch level"
                        },
                        "KERNEL_VERSION": {
                                "TYPE": "TEXT",
                                "VALUE": "Kernel version"
                        },
                        "BUILD_NUMBER": {
                                "TYPE": "TEXT",
                                "VALUE": "Build number"
                        },
                        "RECYCLER_VIEW_WIDGET": {
                                "TYPE": "CLASS",
                                "VALUE": "androidx.recyclerview.widget.RecyclerView"
                        },
                        "RESET_NETWORK": {
                                "TYPE": "TEXT",
                                "VALUE": "Reset network"
                        },
                        "RESET_SETTINGS": {
                                "TYPE": "TEXT",
                                "VALUE": "RESET SETTINGS"
                        },
                        "RESET_APP_PREFERENCES": {
                                "TYPE": "TEXT",
                                "VALUE": "Reset app preferences"
                        },
                        "RESET_APPS": {
                                "TYPE": "TEXT",
                                "VALUE": "RESET APPS"
                        },
                        "LANGUAGES_MENU": {
                                "TYPE": "TEXT",
                                "VALUE": "Languages"
                        },
                        "LANGUAGES_MENU_IN_SELECTED_LANGUAGE": {
                                "TYPE": "TEXT",
                                "VALUE": "Idiomas"
                        }
                },
                "SECURITY": {
                        "PATH": "Settings > Security",
                        "OPTIONS": [
                        ],
                        "TITLE": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "car_ui_toolbar_title",
                                "PACKAGE": "com.android.car.settings.googlecarui.rro"
                        },
                        "CHOOSE_LOCK_TYPE": {
                                "TYPE": "TEXT",
                                "VALUE": "Choose a lock type"
                        },
                        "LOCK_TYPE_PASSWORD": {
                                "TYPE": "TEXT",
                                "VALUE": "Password"
                        },
                        "LOCK_TYPE_PIN": {
                                "TYPE": "TEXT",
                                "VALUE": "PIN"
                        },
                        "LOCK_TYPE_NONE": {
                                "TYPE": "TEXT",
                                "VALUE": "None"
                        },
                        "CONTINUE_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "Continue"
                        },
                        "CONFIRM_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "Confirm"
                        },
                        "ENTER_PASSWORD": {
                                "TYPE": "CLASS",
                                "VALUE": "android.widget.EditText"
                        },
                        "PIN_PAD": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "pin_pad",
                                "PACKAGE": "com.android.car.settings"
                        },
                        "ENTER_PIN_BUTTON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "key_enter",
                                "PACKAGE": "com.android.car.settings"
                        },
                        "REMOVE_BUTTON": {
                                "TYPE": "TEXT",
                                "VALUE": "Remove"
                        }
                }
        },
        "PHONE": {
                "APPLICATION_CONFIG": {
                        "DIAL_PACKAGE": "com.android.car.dialer",
                        "PHONE_ACTIVITY": "com.android.car.dialer/.ui.TelecomActivity",
                        "OPEN_DIAL_PAD_COMMAND": "am start -a android.intent.action.DIAL"
                },
                "IN_CALL_VIEW": {
                        "DIALED_CONTACT_TITLE": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "user_profile_title",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "DIALED_CONTACT_NUMBER": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "user_profile_phone_number",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "END_CALL": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "end_call_button",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "MUTE_CALL": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "mute_button",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "SWITCH_TO_DIAL_PAD": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "toggle_dialpad_button",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "CHANGE_VOICE_CHANNEL": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "voice_channel_view",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "VOICE_CHANNEL_CAR": {
                                "TYPE": "TEXT",
                                "VALUE": "Car speakers"
                        },
                        "VOICE_CHANNEL_PHONE": {
                                "TYPE": "TEXT",
                                "VALUE": "Phone"
                        }
                },
                "DIAL_PAD_VIEW": {
                        "DIAL_PAD_MENU": {
                                "TYPE": "TEXT",
                                "VALUE": "Dial Pad"
                        },
                        "DIAL_PAD_FRAGMENT": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "dialpad_fragment",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "DIALED_NUMBER": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "title",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "MAKE_CALL": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "call_button",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "DELETE_NUMBER": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "delete_button",
                                "PACKAGE": "com.android.car.dialer"
                        }
                },
                "CONTACTS_VIEW": {
                        "CONTACTS_MENU": {
                                "TYPE": "TEXT",
                                "VALUE": "Contacts"
                        },
                        "CONTACT_INFO": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "call_action_id",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "CONTACT_NAME": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "title",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "CONTACT_DETAIL": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "show_contact_detail_id",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "ADD_CONTACT_TO_FAVORITE": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "contact_details_favorite_button",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "SEARCH_CONTACT": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "menu_item_search",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "CONTACT_SEARCH_BAR": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "car_ui_toolbar_search_bar",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "SEARCH_RESULT": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "contact_name",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "CONTACT_SETTINGS": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "menu_item_setting",
                                "PACKAGE": "com.android.car.dialer"
                        },
                        "CONTACT_ORDER": {
                                "TYPE": "TEXT",
                                "VALUE": "Contact order"
                        },
                        "SORT_BY_FIRST_NAME": {
                                "TYPE": "TEXT",
                                "VALUE": "First name"
                        },
                        "SORT_BY_LAST_NAME": {
                                "TYPE": "TEXT",
                                "VALUE": "Last Name"
                        },
                        "CONTACT_TYPE_WORK": {
                                "TYPE": "TEXT",
                                "VALUE": "Work"
                        },
                        "CONTACT_TYPE_MOBILE": {
                                "TYPE": "TEXT",
                                "VALUE": "Mobile"
                        },
                        "CONTACT_TYPE_HOME": {
                                "TYPE": "TEXT",
                                "VALUE": "Home"
                        }
                },
                "CALL_HISTORY_VIEW": {
                        "CALL_HISTORY_MENU": {
                                "TYPE": "TEXT",
                                "VALUE": "Recents"
                        },
                        "CALL_HISTORY_INFO": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "call_action_id",
                                "PACKAGE": "com.android.car.dialer"
                        }
                },
                "FAVORITES_VIEW": {
                        "FAVORITES_MENU": {
                                "TYPE": "TEXT",
                                "VALUE": "Favorites"
                        }
                }
        },
        "NOTIFICATIONS": {
                "APPLICATION_CONFIG": {
                        "OPEN_NOTIFICATIONS_COMMAND": "service call statusbar 1"
                },
                "EXPANDED_NOTIFICATIONS_SCREEN": {
                        "NOTIFICATION_VIEW": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "notification_view",
                                "PACKAGE": "com.android.systemui"
                        },
                        "CLEAR_ALL_BUTTON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "clear_all_button",
                                "PACKAGE": "com.android.systemui"
                        },
                        "STATUS_BAR": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "car_top_navigation_bar_container",
                                "PACKAGE": "com.android.systemui"
                        },
                        "APP_ICON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "app_icon",
                                "PACKAGE": "com.android.systemui"
                        },
                        "APP_NAME": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "header_text",
                                "PACKAGE": "com.android.systemui"
                        },
                        "NOTIFICATION_TITLE": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "notification_body_title",
                                "PACKAGE": "com.android.systemui"
                        },
                        "NOTIFICATION_BODY": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "notification_body_content",
                                "PACKAGE": "com.android.systemui"
                        },
                        "CARD_VIEW": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "card_view",
                                "PACKAGE": "com.android.systemui"
                        }
                }
        },
        "MEDIA_CENTER": {
                "APPLICATION_CONFIG": {
                        "MEDIA_CENTER_PACKAGE": "com.android.car.media",
                        "MEDIA_ACTIVITY": "com.android.bluetooth/com.android.bluetooth.avrcpcontroller.BluetoothMediaBrowserService"
                },
                "MEDIA_CENTER_SCREEN": {
                        "PLAY_PAUSE_BUTTON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "play_pause_stop",
                                "PACKAGE": "com.android.car.media"
                        },
                        "NEXT_BUTTON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "skip_next",
                                "PACKAGE": "com.android.car.media"
                        },
                        "PREVIOUS_BUTTON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "skip_prev",
                                "PACKAGE": "com.android.car.media"
                        },
                        "SHUFFLE_BUTTON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "overflow_on",
                                "PACKAGE": "com.android.car.media"
                        },
                        "PLAY_QUEUE_BUTTON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "play_queue",
                                "PACKAGE": "com.android.car.media"
                        },
                        "MINIMIZED_MEDIA_CONTROLS": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "minimized_playback_controls",
                                "PACKAGE": "com.android.car.media"
                        },
                        "TRACK_NAME": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "title",
                                "PACKAGE": "com.android.car.media"
                        },
                        "TRACK_NAME_MINIMIZED_CONTROL": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "minimized_control_bar_title",
                                "PACKAGE": "com.android.car.media"
                        },
                        "BACK_BUTTON": {
                                "TYPE": "DESCRIPTION",
                                "VALUE": "Back"
                        }
                },
                "MEDIA_CENTER_ON_HOME_SCREEN": {
                        "PLAY_PAUSE_BUTTON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "play_pause_stop",
                                "PACKAGE": "com.android.car.carlauncher"
                        },
                        "NEXT_BUTTON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "skip_next",
                                "PACKAGE": "com.android.car.carlauncher"
                        },
                        "PREVIOUS_BUTTON": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "skip_prev",
                                "PACKAGE": "com.android.car.carlauncher"
                        },
                        "TRACK_NAME": {
                                "TYPE": "RESOURCE_ID",
                                "VALUE": "title",
                                "PACKAGE": "com.android.car.carlauncher"
                        }
                }
        }
}
  

Nondefault device configurations

The following code sample shows an example of the JSON configuration file where default settings are overridden by the settings on the DUT. In this example:

  • Internet settings are named Network & internet on reference devices and Connectivity on the DUT.
  • The date and time settings are available at Settings > Date and time for reference devices and at Settings > System > Date and time for the DUT.
# JSON configuration file for Reference Device
{
       ....
        "NETWORK_AND_INTERNET_SETTINGS": {
             "path": "Settings > Network & internet"
        },
        "DATE_AND_TIME_SETTINGS": {
             "path": "Settings > Date and time"
        },
       ....
}

# JSON configuration file for non-reference device
{
       ....
        "NETWORK_AND_INTERNET_SETTINGS": {
             "path": "Settings > Connectivity"
        },
        "DATE_AND_TIME_SETTINGS": {
             "path": "Settings > System > Date and time"
        },
       ....
}

When the JSON configuration file is ready, it’s provided at runtime as shown in the following code block.

# Push The JSON configuration file to the device
adb -s DEVICE-SERIAL push PATH-OF-JSON-FILE /data/local/tmp/jsonFile.json

In these commands:

  • PATH-TO-JSON-FILE: The path of the JSON file on the host machine.
  • DEVICE-SERIAL: The serial ID of the DUT. This parameter isn’t required if only one device is connected to the host.

Building and execution

The Spectatio framework is automatically built as part of the test APK. To build the test APK, the AOSP codebase must reside on the local workstation. After the test APK is built, the user must install the APK on the device and execute the test.

The following code sample shows the building, installation, and execution of a test APK.

# Build Test APK
make TEST-APK-NAME

# Install Test APK
adb -s DEVICE-SERIAL install -r PATH-FOR-BUILT-TEST-APK


# Execute Test with the JSON file
adb -s DEVICE-SERIAL shell am instrument -w -r -e debug false -e config-file-path /data/local/tmp/jsonFile.json -e class TEST-PACKAGE.TEST-CLASSNAME TEST-PACKAGE/androidx.test.runner.AndroidJUnitRunner

In these commands:

  • TEST-APK-NAME: The name of the app to be tested. For example, set TEST-APK-NAME to AndroidAutomotiveSettingsTests to test the Wi-Fi settings as specified in the Android.bp file. The name of the APK can be found in the respective Android.bp file for the Automotive test.

  • DEVICE-SERIAL: The serial ID of the DUT. This parameter isn’t required if only one device is connected to the host.

  • config-file-path: Optional parameter that is required only to provide nondefault device UI configurations as specified in the JSON configuration file. If not provided, the framework uses default values for executing the tests.

  • PATH-FOR-BUILT-TEST-APK: The path where the test APK is built when the make command is executed.

  • TEST-PACKAGE: The name of the test package.

  • TEST-CLASSNAME: The name of the test class. For example, for the Wifi Settings test, the test package is android.platform.tests and the test class name is WifiSettingTest.