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// Copyright (c) 2009 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 "chrome/renderer/paint_aggregator.h"
#include "testing/gtest/include/gtest/gtest.h"
TEST(PaintAggregator, InitialState) {
PaintAggregator greg;
EXPECT_FALSE(greg.HasPendingUpdate());
}
TEST(PaintAggregator, SingleInvalidation) {
PaintAggregator greg;
gfx::Rect rect(2, 4, 10, 16);
greg.InvalidateRect(rect);
EXPECT_TRUE(greg.HasPendingUpdate());
EXPECT_TRUE(greg.GetPendingUpdate().scroll_rect.IsEmpty());
EXPECT_FALSE(greg.GetPendingUpdate().paint_rect.IsEmpty());
EXPECT_EQ(rect.x(), greg.GetPendingUpdate().paint_rect.x());
EXPECT_EQ(rect.y(), greg.GetPendingUpdate().paint_rect.y());
EXPECT_EQ(rect.width(), greg.GetPendingUpdate().paint_rect.width());
EXPECT_EQ(rect.height(), greg.GetPendingUpdate().paint_rect.height());
}
TEST(PaintAggregator, DoubleDisjointInvalidation) {
PaintAggregator greg;
gfx::Rect r1(2, 4, 2, 4);
gfx::Rect r2(4, 2, 4, 2);
greg.InvalidateRect(r1);
greg.InvalidateRect(r2);
gfx::Rect expected = r1.Union(r2);
EXPECT_TRUE(greg.HasPendingUpdate());
EXPECT_TRUE(greg.GetPendingUpdate().scroll_rect.IsEmpty());
EXPECT_FALSE(greg.GetPendingUpdate().paint_rect.IsEmpty());
EXPECT_EQ(expected.x(), greg.GetPendingUpdate().paint_rect.x());
EXPECT_EQ(expected.y(), greg.GetPendingUpdate().paint_rect.y());
EXPECT_EQ(expected.width(), greg.GetPendingUpdate().paint_rect.width());
EXPECT_EQ(expected.height(), greg.GetPendingUpdate().paint_rect.height());
}
TEST(PaintAggregator, SingleScroll) {
PaintAggregator greg;
gfx::Rect rect(1, 2, 3, 4);
gfx::Point delta(1, 0);
greg.ScrollRect(delta.x(), delta.y(), rect);
EXPECT_TRUE(greg.HasPendingUpdate());
EXPECT_TRUE(greg.GetPendingUpdate().paint_rect.IsEmpty());
EXPECT_FALSE(greg.GetPendingUpdate().scroll_rect.IsEmpty());
EXPECT_EQ(rect.x(), greg.GetPendingUpdate().scroll_rect.x());
EXPECT_EQ(rect.y(), greg.GetPendingUpdate().scroll_rect.y());
EXPECT_EQ(rect.width(), greg.GetPendingUpdate().scroll_rect.width());
EXPECT_EQ(rect.height(), greg.GetPendingUpdate().scroll_rect.height());
EXPECT_EQ(delta.x(), greg.GetPendingUpdate().scroll_delta.x());
EXPECT_EQ(delta.y(), greg.GetPendingUpdate().scroll_delta.y());
gfx::Rect resulting_damage = greg.GetPendingUpdate().GetScrollDamage();
gfx::Rect expected_damage(1, 2, 1, 4);
EXPECT_EQ(expected_damage.x(), resulting_damage.x());
EXPECT_EQ(expected_damage.y(), resulting_damage.y());
EXPECT_EQ(expected_damage.width(), resulting_damage.width());
EXPECT_EQ(expected_damage.height(), resulting_damage.height());
}
TEST(PaintAggregator, DoubleOverlappingScroll) {
PaintAggregator greg;
gfx::Rect rect(1, 2, 3, 4);
gfx::Point delta1(1, 0);
gfx::Point delta2(1, 0);
greg.ScrollRect(delta1.x(), delta1.y(), rect);
greg.ScrollRect(delta2.x(), delta2.y(), rect);
EXPECT_TRUE(greg.HasPendingUpdate());
EXPECT_TRUE(greg.GetPendingUpdate().paint_rect.IsEmpty());
EXPECT_FALSE(greg.GetPendingUpdate().scroll_rect.IsEmpty());
EXPECT_EQ(rect.x(), greg.GetPendingUpdate().scroll_rect.x());
EXPECT_EQ(rect.y(), greg.GetPendingUpdate().scroll_rect.y());
EXPECT_EQ(rect.width(), greg.GetPendingUpdate().scroll_rect.width());
EXPECT_EQ(rect.height(), greg.GetPendingUpdate().scroll_rect.height());
gfx::Point expected_delta(delta1.x() + delta2.x(),
delta1.y() + delta2.y());
EXPECT_EQ(expected_delta.x(), greg.GetPendingUpdate().scroll_delta.x());
EXPECT_EQ(expected_delta.y(), greg.GetPendingUpdate().scroll_delta.y());
gfx::Rect resulting_damage = greg.GetPendingUpdate().GetScrollDamage();
gfx::Rect expected_damage(1, 2, 2, 4);
EXPECT_EQ(expected_damage.x(), resulting_damage.x());
EXPECT_EQ(expected_damage.y(), resulting_damage.y());
EXPECT_EQ(expected_damage.width(), resulting_damage.width());
EXPECT_EQ(expected_damage.height(), resulting_damage.height());
}
TEST(PaintAggregator, DiagonalScroll) {
PaintAggregator greg;
// We don't support optimized diagonal scrolling, so this should result in
// repainting.
gfx::Rect rect(1, 2, 3, 4);
gfx::Point delta(1, 1);
greg.ScrollRect(delta.x(), delta.y(), rect);
EXPECT_TRUE(greg.HasPendingUpdate());
EXPECT_TRUE(greg.GetPendingUpdate().scroll_rect.IsEmpty());
EXPECT_FALSE(greg.GetPendingUpdate().paint_rect.IsEmpty());
EXPECT_EQ(rect.x(), greg.GetPendingUpdate().paint_rect.x());
EXPECT_EQ(rect.y(), greg.GetPendingUpdate().paint_rect.y());
EXPECT_EQ(rect.width(), greg.GetPendingUpdate().paint_rect.width());
EXPECT_EQ(rect.height(), greg.GetPendingUpdate().paint_rect.height());
}
// TODO(darin): Add tests for mixed scrolling and invalidation
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