[Mac] Adds a new view that will allow us to animate the height property of vi...

chrome/browser/cocoa/animatable_view_unittest.mm

+// Copyright (c) 2009 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 <Cocoa/Cocoa.h>
+
+#include "base/scoped_nsobject.h"
+#import "chrome/browser/cocoa/animatable_view.h"
+#import "chrome/browser/cocoa/cocoa_test_helper.h"
+#import "chrome/browser/cocoa/view_resizer_pong.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
+
+namespace {
+
+class AnimatableViewTest : public CocoaTest {
+ public:
+  AnimatableViewTest() {
+    NSRect frame = NSMakeRect(0, 0, 100, 100);
+    view_.reset([[AnimatableView alloc] initWithFrame:frame]);
+    [[test_window() contentView] addSubview:view_.get()];
+
+    resizeDelegate_.reset([[ViewResizerPong alloc] init]);
+    [view_ setResizeDelegate:resizeDelegate_.get()];
+  }
+
+  scoped_nsobject<ViewResizerPong> resizeDelegate_;
+  scoped_nsobject<AnimatableView> view_;
+};
+
+// Basic view tests (AddRemove, Display).
+TEST_VIEW(AnimatableViewTest, view_);
+
+TEST_F(AnimatableViewTest, GetAndSetHeight) {
+  // Make sure the view's height starts out at 100.
+  NSRect initialFrame = [view_ frame];
+  ASSERT_EQ(100, initialFrame.size.height);
+  EXPECT_EQ(initialFrame.size.height, [view_ height]);
+
+  // Set it directly to 50 and make sure it takes effect.
+  [resizeDelegate_ setHeight:-1];
+  [view_ setHeight:50];
+  EXPECT_EQ(50, [resizeDelegate_ height]);
+}
+
+// TODO(rohitrao): Find a way to unittest the animations and delegate messages.
+
+}  // namespace