cc/test/layer_tree_json_parser_unittest.cc

   1 // Copyright 2013 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 "cc/test/layer_tree_json_parser.h"
   6
   7 #include "cc/layers/layer.h"
   8 #include "cc/test/fake_impl_proxy.h"
   9 #include "cc/test/fake_layer_tree_host.h"
  10 #include "cc/test/fake_layer_tree_host_impl.h"
  11 #include "cc/test/geometry_test_utils.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13
  14 namespace cc {
  15
  16 namespace {
  17
  18 bool LayerTreesMatch(LayerImpl* const layer_impl,
  19                      Layer* const layer) {
  20 #define RETURN_IF_EXPECTATION_FAILS(exp) \
  21   do { \
  22     exp; \
  23     if (testing::UnitTest::GetInstance()->current_test_info()-> \
  24             result()->Failed()) \
  25       return false; \
  26   } while (0)
  27
  28   RETURN_IF_EXPECTATION_FAILS(EXPECT_EQ(layer_impl->children().size(),
  29                                         layer->children().size()));
  30   RETURN_IF_EXPECTATION_FAILS(EXPECT_EQ(layer_impl->bounds(), layer->bounds()));
  31   RETURN_IF_EXPECTATION_FAILS(
  32       EXPECT_EQ(layer_impl->position(), layer->position()));
  33   RETURN_IF_EXPECTATION_FAILS(
  34       EXPECT_TRANSFORMATION_MATRIX_EQ(layer_impl->draw_transform(),
  35                                       layer->draw_transform()));
  36   RETURN_IF_EXPECTATION_FAILS(EXPECT_EQ(layer_impl->contents_opaque(),
  37                                         layer->contents_opaque()));
  38   RETURN_IF_EXPECTATION_FAILS(EXPECT_EQ(layer_impl->scrollable(),
  39                                         layer->scrollable()));
  40   RETURN_IF_EXPECTATION_FAILS(EXPECT_FLOAT_EQ(layer_impl->opacity(),
  41                                               layer->opacity()));
  42   RETURN_IF_EXPECTATION_FAILS(EXPECT_EQ(layer_impl->have_wheel_event_handlers(),
  43                                         layer->have_wheel_event_handlers()));
  44   RETURN_IF_EXPECTATION_FAILS(
  45       EXPECT_EQ(layer_impl->have_scroll_event_handlers(),
  46                 layer->have_scroll_event_handlers()));
  47   RETURN_IF_EXPECTATION_FAILS(
  48       EXPECT_EQ(layer_impl->touch_event_handler_region(),
  49                 layer->touch_event_handler_region()));
  50
  51   for (size_t i = 0; i < layer_impl->children().size(); ++i) {
  52     RETURN_IF_EXPECTATION_FAILS(EXPECT_TRUE(LayerTreesMatch(
  53         layer_impl->children()[i], layer->children()[i].get())));
  54   }
  55
  56   return true;
  57 #undef RETURN_IF_EXPECTATION_FAILS
  58 }
  59
  60 }  // namespace
  61
  62 class LayerTreeJsonParserSanityCheck : public testing::Test {
  63 };
  64
  65 TEST_F(LayerTreeJsonParserSanityCheck, Basic) {
  66   FakeImplProxy proxy;
  67   TestSharedBitmapManager shared_bitmap_manager;
  68   FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager);
  69   LayerTreeImpl* tree = host_impl.active_tree();
  70
  71   scoped_ptr<LayerImpl> root_impl(LayerImpl::Create(tree, 1));
  72   scoped_ptr<LayerImpl> parent(LayerImpl::Create(tree, 2));
  73   scoped_ptr<LayerImpl> child(LayerImpl::Create(tree, 3));
  74
  75   root_impl->SetBounds(gfx::Size(100, 100));
  76   parent->SetBounds(gfx::Size(50, 50));
  77   child->SetBounds(gfx::Size(40, 40));
  78
  79   parent->SetPosition(gfx::Point(25, 25));
  80
  81   child->SetHaveWheelEventHandlers(true);
  82   child->SetHaveScrollEventHandlers(true);
  83
  84   parent->AddChild(child.Pass());
  85   root_impl->AddChild(parent.Pass());
  86   tree->SetRootLayer(root_impl.Pass());
  87
  88   std::string json = host_impl.LayerTreeAsJson();
  89   scoped_refptr<Layer> root = ParseTreeFromJson(json, NULL);
  90   ASSERT_TRUE(root.get());
  91   EXPECT_TRUE(LayerTreesMatch(host_impl.RootLayer(), root.get()));
  92 }
  93
  94 TEST_F(LayerTreeJsonParserSanityCheck, EventHandlerRegions) {
  95   FakeImplProxy proxy;
  96   TestSharedBitmapManager shared_bitmap_manager;
  97   FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager);
  98   LayerTreeImpl* tree = host_impl.active_tree();
  99
 100   scoped_ptr<LayerImpl> root_impl(LayerImpl::Create(tree, 1));
 101   scoped_ptr<LayerImpl> touch_layer(LayerImpl::Create(tree, 2));
 102
 103   root_impl->SetBounds(gfx::Size(100, 100));
 104   touch_layer->SetBounds(gfx::Size(50, 50));
 105
 106   Region touch_region;
 107   touch_region.Union(gfx::Rect(10, 10, 20, 30));
 108   touch_region.Union(gfx::Rect(40, 10, 20, 20));
 109   touch_layer->SetTouchEventHandlerRegion(touch_region);
 110
 111   root_impl->AddChild(touch_layer.Pass());
 112   tree->SetRootLayer(root_impl.Pass());
 113
 114   std::string json = host_impl.LayerTreeAsJson();
 115   scoped_refptr<Layer> root = ParseTreeFromJson(json, NULL);
 116   ASSERT_TRUE(root.get());
 117   EXPECT_TRUE(LayerTreesMatch(host_impl.RootLayer(), root.get()));
 118 }
 119
 120 }  // namespace cc