Espresso

java-static fun closeSoftKeyboard(): Unit

Closes soft keyboard if open.

java-static fun getIdlingResources(): (Mutable)List<IdlingResource!>!

Returns a list of all currently registered IdlingResources.

@CheckReturnValue
java-static fun onData(dataMatcher: Matcher<Any!>!): DataInteraction!

Creates an DataInteraction for a data object displayed by the application. Use this method to load (into the view hierarchy) items from AdapterView widgets (e.g. ListView).

This method builds a DataInteraction object - it does not interact with the application under test at all. It is expected that the caller use the ViewInteraction object to perform an action or assertion.

java-static fun onIdle(): Unit

Loops the main thread until the app goes idle.

Only call this method for tests that do not interact with any UI elements, but require Espresso's main thread synchronisation! This method is mainly useful for test utilities and frameworks that are build on top of Espresso.

For UI tests use onView or onData. These APIs already use Espresso's internal synchronisation mechanisms and do not require a call to onIdle.

java-static fun <T> onIdle(action: Callable<T!>!): T!

Loops the main thread until the app goes idle.

Same as onIdle, but takes an additional Callable as parameter, which is executed after the app goes idle. This works on any thread, including the main thread.

@CheckReturnValue
java-static fun onView(viewMatcher: Matcher<View!>!): ViewInteraction!

Creates a ViewInteraction for a given view. Note: the view has to be part of the view hierarchy. This may not be the case if it is rendered as part of an AdapterView (e.g. ListView). If this is the case, use Espresso.onData to load the view first.

This method builds a ViewInteraction object - it does not interact with the application under test at all. It is expected that the caller use the ViewInteraction object to perform an action or assertion.

java-static fun openActionBarOverflowOrOptionsMenu(context: Context!): Unit

Opens the overflow menu displayed within an ActionBar.

This works with both native and SherlockActionBar ActionBars.

Note the significant differences of UX between ActionMode and ActionBars with respect to overflows. If a hardware menu key is present, the overflow icon is never displayed in ActionBars and can only be interacted with via menu key presses.

java-static fun openContextualActionModeOverflowMenu(): Unit

Opens the overflow menu displayed in the contextual options of an ActionMode.

This works with both native and SherlockActionBar action modes.

Note the significant difference in UX between ActionMode and ActionBar overflows - ActionMode will always present an overflow icon and that icon only responds to clicks. The menu button (if present) has no impact on it.

java-static fun pressBack(): Unit

Press on the back button.

java-static fun pressBackUnconditionally(): Unit

Similar to pressBack but will not throw an exception when Espresso navigates outside the application or process under test.

java-static fun registerIdlingResources(resources: Array<IdlingResource!>!): Boolean

Registers one or more IdlingResources with the framework. It is expected, although not strictly required, that this method will be called at test setup time prior to any interaction with the application under test. When registering more than one resource, ensure that each has a unique name. If any of the given resources is already registered, a warning is logged.

java-static fun registerLooperAsIdlingResource(looper: Looper!): Unit

Registers a Looper for idle checking with the framework. This is intended for use with non-UI thread loopers.

java-static fun registerLooperAsIdlingResource(looper: Looper!, considerWaitIdle: Boolean): Unit

Registers a Looper for idle checking with the framework. This is intended for use with non-UI thread loopers.

This method allows the caller to consider Thread.State.WAIT to be 'idle'.

This is useful in the case where a looper is sending a message to the UI thread synchronously through a wait/notify mechanism.

java-static fun setFailureHandler(failureHandler: FailureHandler!): Unit

Changes the default FailureHandler to the given one.

java-static fun unregisterIdlingResources(resources: Array<IdlingResource!>!): Boolean

Unregisters one or more IdlingResources. If any of the given resources are not already registered, a warning is logged.