How to use espresso to press a AlertDialog button

Question

I want to press below button using Espresso, but I'm not sure how. Should I get the resource-id? Or how to set an ID to the AlertDialog??

@RunWith(AndroidJUnit4.class) public class ApplicationTest {  @Rule public ActivityTestRule<LoadingActivity> mActivityRule =         new ActivityTestRule<>(LoadingActivity.class);  @Test public void loginClickMarker() { //Doesn't work:     onView(withText("GA NAAR INSTELLINGEN")).perform(click()); } }  public class PopupDialog {  public static void showGPSIsDisabled(Context context, String msg, final PopupDialogCallback popupDialogCallback) {     new AlertDialog.Builder(context)             .setTitle(context.getString(R.string.location_turned_off))             .setMessage(msg)             .setPositiveButton(context.getString(R.string.go_to_settings), new DialogInterface.OnClickListener() {                 @Override                 public void onClick(DialogInterface dialog, int which) {                     dialog.dismiss();                     popupDialogCallback.hasClicked();                 }             }).show(); } } 

android.support.test.espresso.NoMatchingViewException: No views in hierarchy found matching: with text: is "GA NAAR INSTELLINGEN"

Answer 1

According to StackOverflow similar issue: Check if a dialog is displayed with Espresso

You should change your code from:

onView(withText("GA NAAR INSTELLINGEN")).perform(click()); 

to

onView(withText("GA NAAR INSTELLINGEN")))     .inRoot(isDialog()) // <---     .check(matches(isDisplayed()))     .perform(click()); 

If it won't work, don't bother to use long with Espresso another great Google's instrumentation test called uiatomator.

Check: http://qathread.blogspot.com/2015/05/espresso-uiautomator-perfect-tandem.html

Example code:

// Initialize UiDevice instance UiDevice uiDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation());  // Search for correct button in the dialog. UiObject button = uiDevice.findObject(new UiSelector().text("GA NAAR INSTELLINGEN")); if (button.exists() && button.isEnabled()) {     button.click(); } 

Hope it will help