Added an instant fail of test if post menu can't be opened

Author: pachlava

WordPress/src/androidTest/java/org/wordpress/android/e2e/pages/BlockEditorPage.java

@@ -25,6 +25,7 @@
 import static org.wordpress.android.support.WPSupportUtils.waitForElementToBeDisplayedWithoutFailure;
 import static junit.framework.TestCase.assertTrue;
 import static org.wordpress.android.support.WPSupportUtils.withIndex;
+import static org.junit.Assert.fail;
 
 public class BlockEditorPage {
     private static ViewInteraction titleField = onView(withHint("Add title"));
@@ -89,6 +90,10 @@ public void openPostKebabMenu() {
         if (!waitForElementToBeDisplayedWithoutFailure(postSettingButton)) {
             openActionBarOverflowOrOptionsMenu(ApplicationProvider.getApplicationContext());
         }
+
+        if (!waitForElementToBeDisplayedWithoutFailure(postSettingButton)) {
+            fail("Failed to open post menu.");
+        }
     }
 
     public void openPostSetting() {