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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/picture_layer_tiling_set.h"
#include "cc/test/fake_picture_layer_tiling_client.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/size_conversions.h"
namespace cc {
TEST(PictureLayerTilingSetTest, NoResources) {
FakePictureLayerTilingClient client;
PictureLayerTilingSet set(&client);
gfx::Size default_tile_size(256, 256);
gfx::Size layer_bounds(1000, 800);
set.SetLayerBounds(layer_bounds);
set.AddTiling(1.0, default_tile_size);
set.AddTiling(1.5, default_tile_size);
set.AddTiling(2.0, default_tile_size);
float contents_scale = 2.0;
gfx::Size content_bounds(
gfx::ToCeiledSize(gfx::ScaleSize(layer_bounds, contents_scale)));
gfx::Rect content_rect(gfx::Point(), content_bounds);
Region remaining(content_rect);
PictureLayerTilingSet::Iterator iter(&set, contents_scale, content_rect);
for (; iter; ++iter) {
gfx::Rect geometry_rect = iter.geometry_rect();
EXPECT_TRUE(content_rect.Contains(geometry_rect));
ASSERT_TRUE(remaining.Contains(geometry_rect));
remaining.Subtract(geometry_rect);
// No tiles have resources, so no iter represents a real tile.
EXPECT_FALSE(*iter);
}
EXPECT_TRUE(remaining.IsEmpty());
}
} // namespace cc
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