instrumentation test rule example

ActivityTestRule.java

public final TestComponentRule component = new TestComponentRule.Builder()
        .withClient()
        .withUserManager(true)
        .build();

public final ActivityTestRule<MainActivity> activity = new ActivityTestRule<>(
        MainActivity.class,
        false,
        false);

// TestComponentRule needs to go first to make sure the Dagger ApplicationTestComponent is set
// in the Application before any Activity is launched.
@Rule
public TestRule chain = RuleChain.outerRule(component)
        .around(activity);