Add more Badged Reading List EG tests.

Bug: 780984
Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet;master.tryserver.chromium.mac:ios-simulator-full-configs
Change-Id: I4004bd0ed43330dfca8a73133db4a5aec8a423f9
Reviewed-on: https://chromium-review.googlesource.com/802957Reviewed-by: edchin <edchin@chromium.org>
Commit-Queue: Gregory Chatzinoff <gchatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#523820}

ios/chrome/browser/feature_engagement/feature_engagement_egtest.mm

@@ -85,7 +85,8 @@ void EnableBadgedReadingListTriggering(
 @implementation FeatureEngagementTestCase
 
 // Verifies that the Badged Reading List feature shows when triggering
-// conditions are met.
+// conditions are met. Also verifies that the Badged Reading List does not
+// appear again after being shown.
 - (void)testBadgedReadingListFeatureShouldShow {
   base::test::ScopedFeatureList scoped_feature_list;
 
@@ -105,6 +106,15 @@ void EnableBadgedReadingListTriggering(
 
   [[EarlGrey selectElementWithMatcher:ReadingListTextBadge()]
       assertWithMatcher:grey_sufficientlyVisible()];
+
+  // Close tools menu by tapping reload.
+  [[EarlGrey selectElementWithMatcher:chrome_test_util::ReloadButton()]
+      performAction:grey_tap()];
+
+  // Reopen tools menu to verify that the badge does not appear again.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[EarlGrey selectElementWithMatcher:ReadingListTextBadge()]
+      assertWithMatcher:grey_notVisible()];
 }
 
 // Verifies that the Badged Reading List feature does not show if Chrome has
@@ -126,4 +136,32 @@ void EnableBadgedReadingListTriggering(
   [[EarlGrey selectElementWithMatcher:ReadingListTextBadge()]
       assertWithMatcher:grey_notVisible()];
 }
+
+// Verifies that the Badged Reading List feature does not show if the reading
+// list has already been used.
+- (void)testBadgedReadingListFeatureReadingListAlreadyUsed {
+  base::test::ScopedFeatureList scoped_feature_list;
+
+  EnableBadgedReadingListTriggering(scoped_feature_list);
+
+  // Ensure that the FeatureEngagementTracker picks up the new feature
+  // configuration provided by |scoped_feature_list|.
+  LoadFeatureEngagementTracker();
+
+  // Ensure that Chrome has been launched enough times to mee the trigger
+  // condition
+  for (int index = 0; index < kMinChromeOpensRequired; index++) {
+    SimulateChromeOpenedEvent();
+  }
+
+  [chrome_test_util::BrowserCommandDispatcherForMainBVC() showReadingList];
+  [[EarlGrey selectElementWithMatcher:grey_accessibilityLabel(@"Done")]
+      performAction:grey_tap()];
+
+  [ChromeEarlGreyUI openToolsMenu];
+
+  [[EarlGrey selectElementWithMatcher:ReadingListTextBadge()]
+      assertWithMatcher:grey_notVisible()];
+}
+
 @end