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_SIZE_EQ(layer_impl->bounds(),
  31                                              layer->bounds()));
  32   RETURN_IF_EXPECTATION_FAILS(EXPECT_POINT_EQ(layer_impl->position(),
  33                                               layer->position()));
  34   RETURN_IF_EXPECTATION_FAILS(
  35       EXPECT_TRANSFORMATION_MATRIX_EQ(layer_impl->draw_transform(),
  36                                       layer->draw_transform()));
  37   RETURN_IF_EXPECTATION_FAILS(EXPECT_EQ(layer_impl->contents_opaque(),
  38                                         layer->contents_opaque()));
  39   RETURN_IF_EXPECTATION_FAILS(EXPECT_EQ(layer_impl->scrollable(),
  40                                         layer->scrollable()));
  41   RETURN_IF_EXPECTATION_FAILS(EXPECT_FLOAT_EQ(layer_impl->opacity(),
  42                                               layer->opacity()));
  43   RETURN_IF_EXPECTATION_FAILS(EXPECT_EQ(layer_impl->have_wheel_event_handlers(),
  44                                         layer->have_wheel_event_handlers()));
  45   RETURN_IF_EXPECTATION_FAILS(
  46       EXPECT_EQ(layer_impl->touch_event_handler_region(),
  47                 layer->touch_event_handler_region()));
  48
  49   for (size_t i = 0; i < layer_impl->children().size(); ++i) {
  50     RETURN_IF_EXPECTATION_FAILS(
  51         EXPECT_TRUE(LayerTreesMatch(layer_impl->children()[i],
  52                                     layer->children()[i])));
  53   }
  54
  55   return true;
  56 #undef RETURN_IF_EXPECTATION_FAILS
  57 }
  58
  59 }  // namespace
  60
  61 class LayerTreeJsonParserSanityCheck : public testing::Test {
  62 };
  63
  64 TEST_F(LayerTreeJsonParserSanityCheck, Basic) {
  65   FakeImplProxy proxy;
  66   FakeLayerTreeHostImpl host_impl(&proxy);
  67   LayerTreeImpl* tree = host_impl.active_tree();
  68
  69   scoped_ptr<LayerImpl> root_impl(LayerImpl::Create(tree, 1));
  70   scoped_ptr<LayerImpl> parent(LayerImpl::Create(tree, 2));
  71   scoped_ptr<LayerImpl> child(LayerImpl::Create(tree, 3));
  72
  73   root_impl->SetBounds(gfx::Size(100, 100));
  74   parent->SetBounds(gfx::Size(50, 50));
  75   child->SetBounds(gfx::Size(40, 40));
  76
  77   parent->SetPosition(gfx::Point(25, 25));
  78
  79   child->SetHaveWheelEventHandlers(true);
  80
  81   parent->AddChild(child.Pass());
  82   root_impl->AddChild(parent.Pass());
  83   tree->SetRootLayer(root_impl.Pass());
  84
  85   std::string json = host_impl.LayerTreeAsJson();
  86   scoped_refptr<Layer> root = ParseTreeFromJson(json, NULL);
  87   ASSERT_TRUE(root);
  88   EXPECT_TRUE(LayerTreesMatch(host_impl.RootLayer(), root.get()));
  89 }
  90
  91 TEST_F(LayerTreeJsonParserSanityCheck, EventHandlerRegions) {
  92   FakeImplProxy proxy;
  93   FakeLayerTreeHostImpl host_impl(&proxy);
  94   LayerTreeImpl* tree = host_impl.active_tree();
  95
  96   scoped_ptr<LayerImpl> root_impl(LayerImpl::Create(tree, 1));
  97   scoped_ptr<LayerImpl> touch_layer(LayerImpl::Create(tree, 2));
  98
  99   root_impl->SetBounds(gfx::Size(100, 100));
 100   touch_layer->SetBounds(gfx::Size(50, 50));
 101
 102   Region touch_region;
 103   touch_region.Union(gfx::Rect(10, 10, 20, 30));
 104   touch_region.Union(gfx::Rect(40, 10, 20, 20));
 105   touch_layer->SetTouchEventHandlerRegion(touch_region);
 106
 107   root_impl->AddChild(touch_layer.Pass());
 108   tree->SetRootLayer(root_impl.Pass());
 109
 110   std::string json = host_impl.LayerTreeAsJson();
 111   scoped_refptr<Layer> root = ParseTreeFromJson(json, NULL);
 112   ASSERT_TRUE(root);
 113   EXPECT_TRUE(LayerTreesMatch(host_impl.RootLayer(), root.get()));
 114 }
 115
 116 }  // namespace cc