Disable GMA stress tests on iOS in CI to limit ad pool exhaustion errors (#1141)

Suppresses the AdView, InterstitialAd and RewardedAd stress tests on iOS in CI. These tests were exhausting the ad pool for the iOS ad unit and therefore causing NoFill errors, or even worse, BackOff errors.

Author: DellaBitta

gma/integration_test/src/integration_test.cc

@@ -2015,11 +2015,9 @@ TEST_F(FirebaseGmaTest, TestRewardedAdErrorBadExtrasClassName) {
 // Stress tests.  These take a while so run them near the end.
 TEST_F(FirebaseGmaTest, TestAdViewStress) {
   SKIP_TEST_ON_DESKTOP;
-  SKIP_TEST_ON_SIMULATOR;
 
-  // Loading Ads has been deemed flaky as the AdMob Service has a chance to
-  // return NoFill for valid ad requests if there aren't any ads to serve.
-  FLAKY_TEST_SECTION_BEGIN();
+  // TODO(@drsanta): remove when GMA whitelists CI devices
+  TEST_REQUIRES_USER_INTERACTION_ON_IOS;
 
   for (int i = 0; i < 10; ++i) {
     const firebase::gma::AdSize banner_ad_size(kBannerWidth, kBannerHeight);
@@ -2037,17 +2035,13 @@ TEST_F(FirebaseGmaTest, TestAdViewStress) {
     WaitForCompletion(ad_view->Destroy(), "Destroy the AdView");
     delete ad_view;
   }
-
-  FLAKY_TEST_SECTION_END();
 }
 
 TEST_F(FirebaseGmaTest, TestInterstitialAdStress) {
   SKIP_TEST_ON_DESKTOP;
-  SKIP_TEST_ON_SIMULATOR;
 
-  // Loading Ads has been deemed flaky as the AdMob Service has a chance to
-  // return NoFill for valid ad requests if there aren't any ads to serve.
-  FLAKY_TEST_SECTION_BEGIN();
+  // TODO(@drsanta): remove when GMA whitelists CI devices
+  TEST_REQUIRES_USER_INTERACTION_ON_IOS;
 
   for (int i = 0; i < 10; ++i) {
     firebase::gma::InterstitialAd* interstitial =
@@ -2063,17 +2057,13 @@ TEST_F(FirebaseGmaTest, TestInterstitialAdStress) {
                       "TestInterstitialAdStress LoadAd");
     delete interstitial;
   }
-
-  FLAKY_TEST_SECTION_END();
 }
 
 TEST_F(FirebaseGmaTest, TestRewardedAdStress) {
   SKIP_TEST_ON_DESKTOP;
-  SKIP_TEST_ON_SIMULATOR;
 
-  // Loading Ads has been deemed flaky as the AdMob Service has a chance to
-  // return NoFill for valid ad requests if there aren't any ads to serve.
-  FLAKY_TEST_SECTION_BEGIN();
+  // TODO(@drsanta): remove when GMA whitelists CI devices
+  TEST_REQUIRES_USER_INTERACTION_ON_IOS;
 
   for (int i = 0; i < 10; ++i) {
     firebase::gma::RewardedAd* rewarded = new firebase::gma::RewardedAd();
@@ -2087,8 +2077,6 @@ TEST_F(FirebaseGmaTest, TestRewardedAdStress) {
                       "TestRewardedAdStress LoadAd");
     delete rewarded;
   }
-
-  FLAKY_TEST_SECTION_END();
 }
 
 #if defined(ANDROID) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)