Upstream ios/showcase source code.

ios/showcase/tab_grid/sc_tab_grid_egtest.mm

Index: ios/showcase/tab_grid/sc_tab_grid_egtest.mm
diff --git a/ios/showcase/tab_grid/sc_tab_grid_egtest.mm b/ios/showcase/tab_grid/sc_tab_grid_egtest.mm
new file mode 100644
index 0000000000000000000000000000000000000000..3521cbdb8353aa1c3308fb04924ea0c0873645da
--- /dev/null
+++ b/ios/showcase/tab_grid/sc_tab_grid_egtest.mm
@@ -0,0 +1,31 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import <EarlGrey/EarlGrey.h>
+
+#import "ios/showcase/test/showcase_test_case.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+// Tests for the tab grid view controller.
+@interface SCTabGridTestCase : ShowcaseTestCase
+@end
+
+@implementation SCTabGridTestCase
+
+// Tests launching TabGridViewController and tapping a cell.
+- (void)testLaunchAndTappingCell {
+  [[EarlGrey selectElementWithMatcher:grey_text(@"TabGridViewController")]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:grey_text(@"Tab 0")]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:grey_text(@"TabGridActionDelegate")]
+      assertWithMatcher:grey_notNil()];
+  [[EarlGrey selectElementWithMatcher:grey_text(@"Done")]
+      performAction:grey_tap()];
+}
+
+@end