ViewInteraction

public final class ViewInteraction
extends Object

java.lang.Object
   ↳ androidx.test.espresso.ViewInteraction


Provides the primary interface for test authors to perform actions or asserts on views.

Each interaction is associated with a view identified by a view matcher. All view actions and asserts are performed on the UI thread (thus ensuring sequential execution). The same goes for retrieval of views (this is done to ensure that view state is "fresh" prior to execution of each operation).

Summary

Public methods

ViewInteraction check(ViewAssertion viewAssert)

Checks the given ViewAssertion on the the view selected by the current view matcher.

ViewInteraction inRoot(Matcher<Root> rootMatcher)

Makes this ViewInteraction scoped to the root selected by the given root matcher.

ViewInteraction noActivity()

Removes the need of waiting for an Activity before performing a ViewAction/ViewAssertion

ViewInteraction perform(ViewAction... viewActions)

Performs the given action(s) on the view selected by the current view matcher.

ViewInteraction withFailureHandler(FailureHandler failureHandler)

Replaces the default failure handler (@see Espresso.setFailureHandler) with a custom failurehandler for this particular interaction.

Inherited methods

Public methods

check

public ViewInteraction check (ViewAssertion viewAssert)

Checks the given ViewAssertion on the the view selected by the current view matcher.

Parameters
viewAssert ViewAssertion: the assertion to check.

Returns
ViewInteraction this interaction for further perform/verification calls.

inRoot

public ViewInteraction inRoot (Matcher<Root> rootMatcher)

Makes this ViewInteraction scoped to the root selected by the given root matcher.

Parameters
rootMatcher Matcher

Returns
ViewInteraction

noActivity

public ViewInteraction noActivity ()

Removes the need of waiting for an Activity before performing a ViewAction/ViewAssertion

Returns
ViewInteraction

perform

public ViewInteraction perform (ViewAction... viewActions)

Performs the given action(s) on the view selected by the current view matcher. If more than one action is provided, actions are executed in the order provided with precondition checks running prior to each action.

Parameters
viewActions ViewAction: one or more actions to execute.

Returns
ViewInteraction this interaction for further perform/verification calls.

withFailureHandler

public ViewInteraction withFailureHandler (FailureHandler failureHandler)

Replaces the default failure handler (@see Espresso.setFailureHandler) with a custom failurehandler for this particular interaction.

Parameters
failureHandler FailureHandler: a non-null failurehandler to use to report failures.

Returns
ViewInteraction this interaction for further perform/verification calls.