remove ignore tag on contact support test, add wait for element on assert

Author: jostnes

WordPress/src/androidTest/java/org/wordpress/android/e2e/ContactUsTests.java

@@ -1,7 +1,6 @@
 package org.wordpress.android.e2e;
 
 import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Test;
 import org.wordpress.android.e2e.flows.LoginFlow;
 import org.wordpress.android.e2e.pages.ContactSupportScreen;
@@ -18,7 +17,6 @@ public void setUp() {
         logoutIfNecessary();
     }
 
-    @Ignore("Ignored temporarily. This sometimes fail on CI while running with whole test suite.")
     @Test
     public void e2eSendButtonEnabledWhenTextIsEntered() {
         try {

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

@@ -17,6 +17,7 @@
 import static org.hamcrest.Matchers.not;
 import static org.wordpress.android.support.WPSupportUtils.populateTextField;
 import static org.wordpress.android.support.WPSupportUtils.sleep;
+import static org.wordpress.android.support.WPSupportUtils.waitForElementToBeDisplayed;
 import static org.wordpress.android.support.WPSupportUtils.waitForElementToBeDisplayedWithoutFailure;
 
 public class ContactSupportScreen {
@@ -67,6 +68,7 @@ public HelpAndSupportScreen goBackAndDeleteUnsentMessageIfNeeded() {
 
     // Assertions:
     public ContactSupportScreen assertContactSupportScreenLoaded() {
+        waitForElementToBeDisplayed(R.id.message_composer_input_text);
         textInput.check(matches(isCompletelyDisplayed()));
         sendButton.check(matches(isCompletelyDisplayed()));
         return this;