Upstream Chrome on iOS source code [5/11].

ios/chrome/browser/ui/icons/chrome_icon_unittest.mm

+// 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 "ios/chrome/browser/ui/icons/chrome_icon.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+#import "third_party/ocmock/OCMock/OCMock.h"
+#import "third_party/ocmock/ocmock_extensions.h"
+#include "ui/base/l10n/l10n_util_mac.h"
+
+@protocol MockTarget
+- (void)doSomething;
+@end
+
+namespace {
+
+TEST(ChromeIconTest, NonNilIcons) {
+  EXPECT_TRUE([ChromeIcon backIcon]);
+  EXPECT_TRUE([ChromeIcon closeIcon]);
+  EXPECT_TRUE([ChromeIcon infoIcon]);
+  EXPECT_TRUE([ChromeIcon searchIcon]);
+}
+
+TEST(ChromeIconTest, Accessibility) {
+  EXPECT_TRUE([ChromeIcon backIcon].accessibilityIdentifier);
+  EXPECT_TRUE([ChromeIcon backIcon].accessibilityLabel);
+
+  EXPECT_TRUE([ChromeIcon closeIcon].accessibilityIdentifier);
+  EXPECT_TRUE([ChromeIcon closeIcon].accessibilityLabel);
+
+  EXPECT_TRUE([ChromeIcon infoIcon].accessibilityIdentifier);
+  EXPECT_TRUE([ChromeIcon infoIcon].accessibilityLabel);
+
+  EXPECT_TRUE([ChromeIcon searchIcon].accessibilityIdentifier);
+  EXPECT_TRUE([ChromeIcon searchIcon].accessibilityLabel);
+}
+
+TEST(ChromeIcontTest, RTL) {
+  EXPECT_TRUE([ChromeIcon backIcon].flipsForRightToLeftLayoutDirection);
+  EXPECT_FALSE([ChromeIcon searchIcon].flipsForRightToLeftLayoutDirection);
+}
+
+TEST(ChromeIconTest, TemplateBarButtonItem) {
+  UIImage* image = [UIImage imageNamed:@"ic_close"];
+  image.accessibilityIdentifier = @"identifier";
+  image.accessibilityLabel = @"label";
+  id mockTarget = [OCMockObject mockForProtocol:@protocol(MockTarget)];
+  [[mockTarget expect] doSomething];
+
+  UIBarButtonItem* barButtonItem =
+      [ChromeIcon templateBarButtonItemWithImage:image
+                                          target:mockTarget
+                                          action:@selector(doSomething)];
+
+  EXPECT_EQ(@"identifier", barButtonItem.accessibilityIdentifier);
+  EXPECT_EQ(@"label", barButtonItem.accessibilityLabel);
+  EXPECT_EQ(image.size.width, barButtonItem.image.size.width);
+  EXPECT_EQ(image.size.height, barButtonItem.image.size.height);
+  EXPECT_EQ(image.scale, barButtonItem.image.scale);
+  EXPECT_EQ(image.capInsets.top, barButtonItem.image.capInsets.top);
+  EXPECT_EQ(image.capInsets.left, barButtonItem.image.capInsets.left);
+  EXPECT_EQ(image.capInsets.bottom, barButtonItem.image.capInsets.bottom);
+  EXPECT_EQ(image.capInsets.right, barButtonItem.image.capInsets.right);
+  EXPECT_EQ(image.flipsForRightToLeftLayoutDirection,
+            barButtonItem.image.flipsForRightToLeftLayoutDirection);
+  EXPECT_EQ(UIImageRenderingModeAlwaysTemplate,
+            barButtonItem.image.renderingMode);
+}
+
+}  // namespace