[rAC] added popup highlighting

chrome/browser/ui/cocoa/autofill/autofill_pop_up_button_unittest.mm

+// Copyright (c) 2013 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 "chrome/browser/ui/cocoa/autofill/autofill_pop_up_button.h"
+
+#import "base/mac/scoped_nsobject.h"
+#import "chrome/browser/ui/cocoa/cocoa_test_helper.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
+
+class AutofillPopUpButtonTest : public CocoaTest {
+ public:
+  AutofillPopUpButtonTest() {
+    NSRect frame = NSMakeRect(0, 0, 50, 30);
+    button_.reset([[AutofillPopUpButton alloc] initWithFrame:frame]);
+    [button_ sizeToFit];
+    [[test_window() contentView] addSubview:button_];
+  }
+
+ protected:
+  base::scoped_nsobject<AutofillPopUpButton> button_;
+
+  DISALLOW_COPY_AND_ASSIGN(AutofillPopUpButtonTest);
+};
+
+TEST_VIEW(AutofillPopUpButtonTest, button_)
+
+// Test invalid, mostly to ensure nothing leaks or crashes.
+TEST_F(AutofillPopUpButtonTest, DisplayWithInvalid) {
+  [button_ setInvalid:YES];
+  [button_ display];
+  [button_ setInvalid:NO];
+  [button_ display];
+}