1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "ui/wm/core/window_util.h"
6
7#include "base/memory/scoped_ptr.h"
8#include "ui/aura/test/aura_test_base.h"
9#include "ui/aura/test/test_windows.h"
10#include "ui/aura/window.h"
11#include "ui/compositor/layer.h"
12#include "ui/compositor/layer_tree_owner.h"
13
14namespace wm {
15
16typedef aura::test::AuraTestBase WindowUtilTest;
17
18// Test if the recreate layers does not recreate layers that have
19// already been acquired.
20TEST_F(WindowUtilTest, RecreateLayers) {
21  scoped_ptr<aura::Window> window1(
22      aura::test::CreateTestWindowWithId(0, NULL));
23  scoped_ptr<aura::Window> window11(
24      aura::test::CreateTestWindowWithId(1, window1.get()));
25  scoped_ptr<aura::Window> window12(
26      aura::test::CreateTestWindowWithId(2, window1.get()));
27
28  ASSERT_EQ(2u, window1->layer()->children().size());
29
30  scoped_ptr<ui::Layer> acquired(window11->AcquireLayer());
31  EXPECT_TRUE(acquired.get());
32  EXPECT_EQ(acquired.get(), window11->layer());
33
34  scoped_ptr<ui::LayerTreeOwner> tree =
35      wm::RecreateLayers(window1.get());
36
37  // The detached layer should not have the layer that has
38  // already been detached.
39  ASSERT_EQ(1u, tree->root()->children().size());
40  // Child layer is new instance.
41  EXPECT_NE(window11->layer(), tree->root()->children()[0]);
42  EXPECT_NE(window12->layer(), tree->root()->children()[0]);
43
44  // The original window should have both.
45  ASSERT_EQ(2u, window1->layer()->children().size());
46  EXPECT_EQ(window11->layer(), window1->layer()->children()[0]);
47  EXPECT_EQ(window12->layer(), window1->layer()->children()[1]);
48
49  // Delete the window before the acquired layer is deleted.
50  window11.reset();
51}
52}  // namespace wm
53