Part 10 of cc/ directory shuffles: layers

cc/contents_scaling_layer_unittest.cc

-// Copyright 2012 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.
-
-#include "cc/contents_scaling_layer.h"
-
-#include "cc/test/geometry_test_utils.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace cc {
-namespace {
-
-class MockContentsScalingLayer : public ContentsScalingLayer {
- public:
-  MockContentsScalingLayer()
-      : ContentsScalingLayer() {}
-
-  virtual void SetNeedsDisplayRect(const gfx::RectF& dirty_rect) OVERRIDE {
-    last_needs_display_rect_ = dirty_rect;
-    ContentsScalingLayer::SetNeedsDisplayRect(dirty_rect);
-  }
-
-  void ResetNeedsDisplay() {
-      needs_display_ = false;
-  }
-
-  const gfx::RectF& LastNeedsDisplayRect() const {
-     return last_needs_display_rect_;
-  }
-
-  void UpdateContentsScale(float contents_scale) {
-      // Simulate CalcDrawProperties.
-      CalculateContentsScale(
-          contents_scale,
-          false,  // animating_transform_to_screen
-          &draw_properties().contents_scale_x,
-          &draw_properties().contents_scale_y,
-          &draw_properties().content_bounds);
-  }
-
- private:
-  virtual ~MockContentsScalingLayer() {}
-
-  gfx::RectF last_needs_display_rect_;
-};
-
-void CalcDrawProps(Layer* root, float device_scale) {
-    std::vector<scoped_refptr<Layer> > render_surface_layer_list;
-    LayerTreeHostCommon::calculateDrawProperties(
-        root,
-        gfx::Size(500, 500),
-        device_scale,
-        1.f,
-        1024,
-        false,
-        render_surface_layer_list);
-}
-
-TEST(ContentsScalingLayerTest, CheckContentsBounds) {
-  scoped_refptr<MockContentsScalingLayer> test_layer =
-      make_scoped_refptr(new MockContentsScalingLayer());
-
-  scoped_refptr<Layer> root = Layer::Create();
-  root->AddChild(test_layer);
-
-  test_layer->SetBounds(gfx::Size(320, 240));
-  CalcDrawProps(root, 1.f);
-  EXPECT_FLOAT_EQ(1.f, test_layer->contents_scale_x());
-  EXPECT_FLOAT_EQ(1.f, test_layer->contents_scale_y());
-  EXPECT_EQ(320, test_layer->content_bounds().width());
-  EXPECT_EQ(240, test_layer->content_bounds().height());
-
-  CalcDrawProps(root, 2.f);
-  EXPECT_EQ(640, test_layer->content_bounds().width());
-  EXPECT_EQ(480, test_layer->content_bounds().height());
-
-  test_layer->SetBounds(gfx::Size(10, 20));
-  CalcDrawProps(root, 2.f);
-  EXPECT_EQ(20, test_layer->content_bounds().width());
-  EXPECT_EQ(40, test_layer->content_bounds().height());
-
-  CalcDrawProps(root, 1.33f);
-  EXPECT_EQ(14, test_layer->content_bounds().width());
-  EXPECT_EQ(27, test_layer->content_bounds().height());
-}
-
-}  // namespace
-}  // namespace cc