Espresso how to test if Activity is finished?

Question

I want to assert that my Acitivty that I am currently testing is finished when certain actions are performed. Unfortunately so far I am only to assert it by adding some sleep at the end of the test. Is there a better way ?

import android.content.Context;
import android.os.Build;
import android.support.test.rule.ActivityTestRule;
import android.test.suitebuilder.annotation.LargeTest;

import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

import static org.junit.Assert.assertTrue;

@SuppressWarnings("unchecked")
@RunWith(JUnit4.class)
@LargeTest
public class MyActivityTest {

    Context context;

    @Rule
    public ActivityTestRule activityRule
            = new ActivityTestRule(MyActivity.class, true, false);

    @Before
    public void setup() {
        super.setup();
        // ...
    }

    @Test
    public void finishAfterSomethingIsPerformed() throws Exception {

        activityRule.launchActivity(MyActivity.createIntent(context));

        doSomeTesting();

        activityRule.getActivity().runOnUiThread(new Runnable() {
            @Override
            public void run() {
                fireEventThatResultsInTheActivityToFinishItself();
            }
        });

        Thread.sleep(2000); // this is needed :(

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            assertTrue(activityRule.getActivity().isDestroyed());
        }

    }

}

user_2294580 · Answer

Maybe a little late but this is also possible:

assertThat(activityRule.getActivityResult(), hasResultCode(Activity.RESULT_CANCELED));

user_11128514 · Answer

ActivityTestRule is deprecated now. So, my answer is based on ActivityScenario which is the new alternative for ActivityTestRule.

To test whether the current activity is finished(destroyed) or not. You can simply code like -

Way.1 ActivityScenario.launch(YourActivityName::class.java).use { activityScenario -> //Your test code

  assertTrue(activityScenario.state == Lifecycle.State.DESTROYED)
}

activityScenario.state tells the current state of the activity under test
Lifecycle.State.DESTROYED tells that the activity is destroyed

Way.2

ActivityScenario scenario = ActivityScenario.launch(MyActivity.class);
   // Let's say MyActivity has a button that finishes itself.
   onView(withId(R.id.finish_button)).perform(click());
   assertThat(scenario.getResult().getResultCode()).isEqualTo(Activity.RESULT_OK);

user_8536239 · Answer

If you haven't set a result in your activity, you can just use:

assertTrue(activityRule.scenario.result.resultCode == Activity.RESULT_CANCELED)

user_9402979 · Answer

I found a solution here https://stackoverflow.com/a/56491860/9402979, you can use

Espresso.pressBackUnconditionally()
assertTrue(activityRule.activity.isDestroyed)

Espresso how to test if Activity is finished?

7 Answers