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// 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& dirtyRect) OVERRIDE {
m_lastNeedsDisplayRect = dirtyRect;
ContentsScalingLayer::setNeedsDisplayRect(dirtyRect);
}
void resetNeedsDisplay() {
m_needsDisplay = false;
}
const gfx::RectF& lastNeedsDisplayRect() const {
return m_lastNeedsDisplayRect;
}
private:
virtual ~MockContentsScalingLayer() {
}
gfx::RectF m_lastNeedsDisplayRect;
};
TEST(ContentsScalingLayerTest, checkContentsBounds) {
scoped_refptr<MockContentsScalingLayer> testLayer =
make_scoped_refptr(new MockContentsScalingLayer());
testLayer->setBounds(gfx::Size(320, 240));
EXPECT_FLOAT_EQ(1.0, testLayer->contentsScaleX());
EXPECT_FLOAT_EQ(1.0, testLayer->contentsScaleY());
EXPECT_EQ(320, testLayer->contentBounds().width());
EXPECT_EQ(240, testLayer->contentBounds().height());
testLayer->setContentsScale(2.0f);
EXPECT_EQ(640, testLayer->contentBounds().width());
EXPECT_EQ(480, testLayer->contentBounds().height());
testLayer->setBounds(gfx::Size(10, 20));
EXPECT_EQ(20, testLayer->contentBounds().width());
EXPECT_EQ(40, testLayer->contentBounds().height());
testLayer->setContentsScale(1.33f);
EXPECT_EQ(14, testLayer->contentBounds().width());
EXPECT_EQ(27, testLayer->contentBounds().height());
}
TEST(ContentsScalingLayerTest, checkContentsScaleChangeTriggersNeedsDisplay) {
scoped_refptr<MockContentsScalingLayer> testLayer =
make_scoped_refptr(new MockContentsScalingLayer());
testLayer->setBounds(gfx::Size(320, 240));
testLayer->resetNeedsDisplay();
EXPECT_FALSE(testLayer->needsDisplay());
testLayer->setContentsScale(testLayer->contentsScaleX() + 1.f);
EXPECT_TRUE(testLayer->needsDisplay());
EXPECT_FLOAT_RECT_EQ(gfx::RectF(0, 0, 320, 240),
testLayer->lastNeedsDisplayRect());
}
} // namespace
} // namespace cc
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