Add a delay to the Analytics test app. (#788)

* Add a delay when the Analytics test finishes.

Author: jonsimantov

analytics/integration_test/src/integration_test.cc

@@ -43,6 +43,7 @@
 
 namespace firebase_testapp_automated {
 
+using app_framework::ProcessEvents;
 using firebase_test_framework::FirebaseTest;
 
 class FirebaseAnalyticsTest : public FirebaseTest {
@@ -70,6 +71,14 @@ void FirebaseAnalyticsTest::TearDownTestSuite() {
   firebase::analytics::Terminate();
   delete shared_app_;
   shared_app_ = nullptr;
+
+  // The Analytics integration test is too fast for FTL, so pause a few seconds
+  // here.
+  ProcessEvents(1000);
+  ProcessEvents(1000);
+  ProcessEvents(1000);
+  ProcessEvents(1000);
+  ProcessEvents(1000);
 }
 
 TEST_F(FirebaseAnalyticsTest, TestSetCollectionEnabled) {