android-espresso – Page 5

registerIdlingResources deprecation replacement doesn’t work

April 9, 2023 by Tarik

1. Android Test Orchestrator. Android Test Orchestrator resolves your issue with IdlingResources test fails. dependencies { androidTestUtil ‘androidx.test:orchestrator:1.3.0’ } Configure your build.gradle: android { defaultConfig { testInstrumentationRunner “androidx.test.runner.AndroidJUnitRunner” testInstrumentationRunnerArguments clearPackageData: ‘true’ } testOptions { execution ‘ANDROIDX_TEST_ORCHESTRATOR’ } } Then run your tests: ./gradlew connectedCheck 2. Refactor the code The issue IdlingResources cause tests to fail. … Read more

Espresso – How can I check if an activity is launched after performing a certain action?

March 23, 2023 by Tarik

You can use: intended(hasComponent(YourExpectedActivity.class.getName())); Requires this gradle entry: androidTestCompile (“com.android.support.test.espresso:espresso-intents:$espressoVersion”) The import for the intended() and hasComponent() import static android.support.test.espresso.intent.Intents.intended; import static android.support.test.espresso.intent.matcher.IntentMatchers.hasComponent; as mentioned by Shubam Gupta please remember to call Intents.init() before calling intended(). You can eventually call it in the @Before method.

In Espresso, how to avoid AmbiguousViewMatcherException when multiple views match

March 3, 2023 by Tarik

EDIT: Someone mentioned in the comments that withParentIndex is now available, give that a try first before using the custom solution below. I was amazed that I couldn’t find a solution by simply providing an index along with a matcher (i.e. withText, withId). The accepted answer only solves the problem when you’re dealing with onData … Read more

Espresso – How to check if one of the view is displayed

March 1, 2023 by Tarik

It’s possible to catch the exceptions raised by Espresso like this: If you want to test if a view is in hierarchy: try { onView(withText(“Button”)).perform(click()); // View is in hierarchy } catch (NoMatchingViewException e) { // View is not in hierarchy } This exception will be thrown if the view is not in the hierarchy. … Read more

How to count RecyclerView items with Espresso

February 25, 2023 by Tarik

Here an example ViewAssertion to check RecyclerView item count public class RecyclerViewItemCountAssertion implements ViewAssertion { private final int expectedCount; public RecyclerViewItemCountAssertion(int expectedCount) { this.expectedCount = expectedCount; } @Override public void check(View view, NoMatchingViewException noViewFoundException) { if (noViewFoundException != null) { throw noViewFoundException; } RecyclerView recyclerView = (RecyclerView) view; RecyclerView.Adapter adapter = recyclerView.getAdapter(); assertThat(adapter.getItemCount(), is(expectedCount)); } … Read more

Android Marshmallow: Test permissions with Espresso?

February 14, 2023 by Tarik

With the new release of the Android Testing Support Library 1.0, there’s a GrantPermissionRule that you can use in your tests to grant a permission before starting any tests. @Rule public GrantPermissionRule permissionRule = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION); Kotlin solution @get:Rule var permissionRule = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION) @get:Rule must be used in order to avoid java.lang.Exception: The @Rule ‘permissionRule’ must … Read more

Espresso – TextView contains String

February 13, 2023 by Tarik

You can use the Hamcrest library. It has a method containsString. I believe it is in the Espresso library. You can static import it in your class: import static org.hamcrest.core.StringContains.containsString; Use containsString in your method on a TextView: textView.check(matches(withText(containsString(“Test”))));

How to assert inside a RecyclerView in Espresso?

February 9, 2023 by Tarik

Pretty easy. No extra library is needed. Do: onView(withId(R.id.recycler_view)) .check(matches(atPosition(0, withText(“Test Text”)))); if your ViewHolder uses ViewGroup, wrap withText() with a hasDescendant() like: onView(withId(R.id.recycler_view)) .check(matches(atPosition(0, hasDescendant(withText(“Test Text”))))); with method you may put into your Utils class. public static Matcher<View> atPosition(final int position, @NonNull final Matcher<View> itemMatcher) { checkNotNull(itemMatcher); return new BoundedMatcher<View, RecyclerView>(RecyclerView.class) { @Override public … Read more

Android Testing: UIAutomator vs Espresso

February 8, 2023 by Tarik

Actually, you don’t need to choose. UIAutomator and Espresso use the same instrumentation runner, so you can use commands from both of them in a single test. Espresso has variety of matchers, assertions and actions on UI, that automator doesn’t have: Espresso Cheat Sheet Espresso is running in separate thread and it is really fast … Read more

AndroidX : No instrumentation registered! Must run under a registering instrumentation

February 5, 2023 by Tarik

Update You should no longer encounter this error if youre using the latest gradle version. I also encountered this issue. If you look at migrating to Robolectric 4.0 here, it suggest to add the following line in your gradle.properties. android.enableUnitTestBinaryResources=true The problem is that, if you add this you your gradle.properties, it will output this … Read more