ui/wm/core/window_util_unittest.cc

   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
  14 namespace wm {
  15
  16 typedef aura::test::AuraTestBase WindowUtilTest;
  17
  18 // Test if the recreate layers does not recreate layers that have
  19 // already been acquired.
  20 TEST_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