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document_layout_unittest.cc
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document_layout_unittest.cc
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// Copyright 2019 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 "pdf/document_layout.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size.h"
namespace chrome_pdf {
namespace {
class DocumentLayoutOptionsTest : public testing::Test {
protected:
DocumentLayout::Options options_;
};
class DocumentLayoutTest : public testing::Test {
protected:
DocumentLayout layout_;
};
TEST_F(DocumentLayoutOptionsTest, DefaultConstructor) {
EXPECT_EQ(options_.default_page_orientation(), PageOrientation::kOriginal);
EXPECT_FALSE(options_.two_up_view_enabled());
}
TEST_F(DocumentLayoutOptionsTest, CopyConstructor) {
options_.RotatePagesClockwise();
options_.set_two_up_view_enabled(true);
DocumentLayout::Options copy(options_);
EXPECT_EQ(copy.default_page_orientation(), PageOrientation::kClockwise90);
EXPECT_TRUE(copy.two_up_view_enabled());
options_.RotatePagesClockwise();
options_.set_two_up_view_enabled(false);
EXPECT_EQ(copy.default_page_orientation(), PageOrientation::kClockwise90);
EXPECT_TRUE(copy.two_up_view_enabled());
}
TEST_F(DocumentLayoutOptionsTest, CopyAssignment) {
options_.RotatePagesClockwise();
options_.set_two_up_view_enabled(true);
DocumentLayout::Options copy = options_;
EXPECT_EQ(copy.default_page_orientation(), PageOrientation::kClockwise90);
EXPECT_TRUE(copy.two_up_view_enabled());
options_.RotatePagesClockwise();
options_.set_two_up_view_enabled(false);
EXPECT_EQ(copy.default_page_orientation(), PageOrientation::kClockwise90);
EXPECT_TRUE(copy.two_up_view_enabled());
}
TEST_F(DocumentLayoutOptionsTest, Equals) {
EXPECT_TRUE(options_ == options_);
DocumentLayout::Options copy;
EXPECT_TRUE(copy == options_);
options_.RotatePagesClockwise();
EXPECT_FALSE(copy == options_);
copy.RotatePagesClockwise();
EXPECT_TRUE(copy == options_);
options_.RotatePagesCounterclockwise();
EXPECT_FALSE(copy == options_);
copy.RotatePagesCounterclockwise();
EXPECT_TRUE(copy == options_);
options_.set_two_up_view_enabled(true);
EXPECT_FALSE(copy == options_);
copy.set_two_up_view_enabled(true);
EXPECT_TRUE(copy == options_);
options_.set_two_up_view_enabled(false);
EXPECT_FALSE(copy == options_);
copy.set_two_up_view_enabled(false);
EXPECT_TRUE(copy == options_);
}
TEST_F(DocumentLayoutOptionsTest, NotEquals) {
// Given that "!=" is defined as "!(==)", minimal tests should be sufficient
// here.
EXPECT_FALSE(options_ != options_);
DocumentLayout::Options copy;
EXPECT_FALSE(copy != options_);
options_.RotatePagesClockwise();
EXPECT_TRUE(copy != options_);
copy.RotatePagesClockwise();
EXPECT_FALSE(copy != options_);
}
TEST_F(DocumentLayoutOptionsTest, RotatePagesClockwise) {
options_.RotatePagesClockwise();
EXPECT_EQ(options_.default_page_orientation(), PageOrientation::kClockwise90);
options_.RotatePagesClockwise();
EXPECT_EQ(options_.default_page_orientation(),
PageOrientation::kClockwise180);
options_.RotatePagesClockwise();
EXPECT_EQ(options_.default_page_orientation(),
PageOrientation::kClockwise270);
options_.RotatePagesClockwise();
EXPECT_EQ(options_.default_page_orientation(), PageOrientation::kOriginal);
}
TEST_F(DocumentLayoutOptionsTest, RotatePagesCounterclockwise) {
options_.RotatePagesCounterclockwise();
EXPECT_EQ(options_.default_page_orientation(),
PageOrientation::kClockwise270);
options_.RotatePagesCounterclockwise();
EXPECT_EQ(options_.default_page_orientation(),
PageOrientation::kClockwise180);
options_.RotatePagesCounterclockwise();
EXPECT_EQ(options_.default_page_orientation(), PageOrientation::kClockwise90);
options_.RotatePagesCounterclockwise();
EXPECT_EQ(options_.default_page_orientation(), PageOrientation::kOriginal);
}
TEST_F(DocumentLayoutTest, DefaultConstructor) {
EXPECT_EQ(layout_.options().default_page_orientation(),
PageOrientation::kOriginal);
EXPECT_FALSE(layout_.options().two_up_view_enabled());
EXPECT_FALSE(layout_.dirty());
EXPECT_EQ(layout_.size(), gfx::Size(0, 0));
EXPECT_EQ(layout_.page_count(), 0u);
}
TEST_F(DocumentLayoutTest, SetOptionsDoesNotRecomputeLayout) {
layout_.ComputeSingleViewLayout({gfx::Size(100, 200)});
EXPECT_EQ(layout_.size(), gfx::Size(100, 200));
DocumentLayout::Options options;
options.RotatePagesClockwise();
layout_.SetOptions(options);
EXPECT_EQ(layout_.options().default_page_orientation(),
PageOrientation::kClockwise90);
EXPECT_EQ(layout_.size(), gfx::Size(100, 200));
}
TEST_F(DocumentLayoutTest, DirtySetOnOptionsChange) {
DocumentLayout::Options options;
layout_.SetOptions(options);
EXPECT_FALSE(layout_.dirty());
options.RotatePagesClockwise();
layout_.SetOptions(options);
EXPECT_TRUE(layout_.dirty());
layout_.clear_dirty();
options.set_two_up_view_enabled(true);
layout_.SetOptions(options);
EXPECT_TRUE(layout_.dirty());
}
TEST_F(DocumentLayoutTest, DirtyNotSetOnSameOptions) {
DocumentLayout::Options options;
options.set_two_up_view_enabled(true);
layout_.SetOptions(options);
EXPECT_TRUE(layout_.dirty());
layout_.clear_dirty();
options.set_two_up_view_enabled(true);
layout_.SetOptions(options);
EXPECT_FALSE(layout_.dirty());
}
TEST_F(DocumentLayoutTest, ComputeSingleViewLayout) {
std::vector<gfx::Size> page_sizes{
{300, 400}, {400, 500}, {300, 400}, {200, 300}};
layout_.ComputeSingleViewLayout(page_sizes);
ASSERT_EQ(4u, layout_.page_count());
EXPECT_EQ(gfx::Rect(50, 0, 300, 400), layout_.page_rect(0));
EXPECT_EQ(gfx::Rect(0, 404, 400, 500), layout_.page_rect(1));
EXPECT_EQ(gfx::Rect(50, 908, 300, 400), layout_.page_rect(2));
EXPECT_EQ(gfx::Rect(100, 1312, 200, 300), layout_.page_rect(3));
EXPECT_EQ(gfx::Rect(55, 3, 290, 390), layout_.page_bounds_rect(0));
EXPECT_EQ(gfx::Rect(5, 407, 390, 490), layout_.page_bounds_rect(1));
EXPECT_EQ(gfx::Rect(55, 911, 290, 390), layout_.page_bounds_rect(2));
EXPECT_EQ(gfx::Rect(105, 1315, 190, 290), layout_.page_bounds_rect(3));
EXPECT_EQ(gfx::Size(400, 1612), layout_.size());
page_sizes = {{240, 300}, {320, 400}, {250, 360}, {300, 600}, {270, 555}};
layout_.ComputeSingleViewLayout(page_sizes);
ASSERT_EQ(5u, layout_.page_count());
EXPECT_EQ(gfx::Rect(40, 0, 240, 300), layout_.page_rect(0));
EXPECT_EQ(gfx::Rect(0, 304, 320, 400), layout_.page_rect(1));
EXPECT_EQ(gfx::Rect(35, 708, 250, 360), layout_.page_rect(2));
EXPECT_EQ(gfx::Rect(10, 1072, 300, 600), layout_.page_rect(3));
EXPECT_EQ(gfx::Rect(25, 1676, 270, 555), layout_.page_rect(4));
EXPECT_EQ(gfx::Rect(45, 3, 230, 290), layout_.page_bounds_rect(0));
EXPECT_EQ(gfx::Rect(5, 307, 310, 390), layout_.page_bounds_rect(1));
EXPECT_EQ(gfx::Rect(40, 711, 240, 350), layout_.page_bounds_rect(2));
EXPECT_EQ(gfx::Rect(15, 1075, 290, 590), layout_.page_bounds_rect(3));
EXPECT_EQ(gfx::Rect(30, 1679, 260, 545), layout_.page_bounds_rect(4));
EXPECT_EQ(gfx::Size(320, 2231), layout_.size());
}
TEST_F(DocumentLayoutTest, ComputeTwoUpViewLayout) {
// Test case where the widest page is on the right.
std::vector<gfx::Size> page_sizes{
{826, 1066}, {1066, 826}, {826, 1066}, {826, 900}};
layout_.ComputeTwoUpViewLayout(page_sizes);
ASSERT_EQ(4u, layout_.page_count());
EXPECT_EQ(gfx::Rect(240, 0, 826, 1066), layout_.page_rect(0));
EXPECT_EQ(gfx::Rect(1066, 0, 1066, 826), layout_.page_rect(1));
EXPECT_EQ(gfx::Rect(240, 1066, 826, 1066), layout_.page_rect(2));
EXPECT_EQ(gfx::Rect(1066, 1066, 826, 900), layout_.page_rect(3));
EXPECT_EQ(gfx::Rect(245, 3, 820, 1056), layout_.page_bounds_rect(0));
EXPECT_EQ(gfx::Rect(1067, 3, 1060, 816), layout_.page_bounds_rect(1));
EXPECT_EQ(gfx::Rect(245, 1069, 820, 1056), layout_.page_bounds_rect(2));
EXPECT_EQ(gfx::Rect(1067, 1069, 820, 890), layout_.page_bounds_rect(3));
EXPECT_EQ(gfx::Size(2132, 2132), layout_.size());
// Test case where the widest page is on the left.
page_sizes = {{1066, 826}, {820, 1056}, {820, 890}, {826, 1066}};
layout_.ComputeTwoUpViewLayout(page_sizes);
ASSERT_EQ(4u, layout_.page_count());
EXPECT_EQ(gfx::Rect(0, 0, 1066, 826), layout_.page_rect(0));
EXPECT_EQ(gfx::Rect(1066, 0, 820, 1056), layout_.page_rect(1));
EXPECT_EQ(gfx::Rect(246, 1056, 820, 890), layout_.page_rect(2));
EXPECT_EQ(gfx::Rect(1066, 1056, 826, 1066), layout_.page_rect(3));
EXPECT_EQ(gfx::Rect(5, 3, 1060, 816), layout_.page_bounds_rect(0));
EXPECT_EQ(gfx::Rect(1067, 3, 814, 1046), layout_.page_bounds_rect(1));
EXPECT_EQ(gfx::Rect(251, 1059, 814, 880), layout_.page_bounds_rect(2));
EXPECT_EQ(gfx::Rect(1067, 1059, 820, 1056), layout_.page_bounds_rect(3));
EXPECT_EQ(gfx::Size(2132, 2122), layout_.size());
// Test case where there's an odd # of pages.
page_sizes = {{200, 300}, {400, 200}, {300, 600}, {250, 500}, {300, 400}};
layout_.ComputeTwoUpViewLayout(page_sizes);
ASSERT_EQ(5u, layout_.page_count());
EXPECT_EQ(gfx::Rect(200, 0, 200, 300), layout_.page_rect(0));
EXPECT_EQ(gfx::Rect(400, 0, 400, 200), layout_.page_rect(1));
EXPECT_EQ(gfx::Rect(100, 300, 300, 600), layout_.page_rect(2));
EXPECT_EQ(gfx::Rect(400, 300, 250, 500), layout_.page_rect(3));
EXPECT_EQ(gfx::Rect(100, 900, 300, 400), layout_.page_rect(4));
EXPECT_EQ(gfx::Rect(205, 3, 194, 290), layout_.page_bounds_rect(0));
EXPECT_EQ(gfx::Rect(401, 3, 394, 190), layout_.page_bounds_rect(1));
EXPECT_EQ(gfx::Rect(105, 303, 294, 590), layout_.page_bounds_rect(2));
EXPECT_EQ(gfx::Rect(401, 303, 244, 490), layout_.page_bounds_rect(3));
EXPECT_EQ(gfx::Rect(105, 903, 290, 390), layout_.page_bounds_rect(4));
EXPECT_EQ(gfx::Size(800, 1300), layout_.size());
}
TEST_F(DocumentLayoutTest, DirtySetOnSingleViewLayoutInputChange) {
layout_.ComputeSingleViewLayout({gfx::Size(100, 200)});
EXPECT_TRUE(layout_.dirty());
layout_.clear_dirty();
EXPECT_FALSE(layout_.dirty());
layout_.ComputeSingleViewLayout({gfx::Size(100, 200)});
EXPECT_FALSE(layout_.dirty());
layout_.ComputeSingleViewLayout({gfx::Size(200, 100)});
EXPECT_TRUE(layout_.dirty());
layout_.clear_dirty();
layout_.ComputeSingleViewLayout({gfx::Size(200, 100), gfx::Size(300, 300)});
EXPECT_TRUE(layout_.dirty());
layout_.clear_dirty();
layout_.ComputeSingleViewLayout({gfx::Size(200, 100)});
EXPECT_TRUE(layout_.dirty());
}
TEST_F(DocumentLayoutTest, DirtySetOnTwoUpViewLayoutInputChange) {
layout_.ComputeTwoUpViewLayout({gfx::Size(100, 200), gfx::Size(200, 100)});
EXPECT_TRUE(layout_.dirty());
layout_.clear_dirty();
EXPECT_FALSE(layout_.dirty());
layout_.ComputeTwoUpViewLayout({gfx::Size(100, 200), gfx::Size(200, 100)});
EXPECT_FALSE(layout_.dirty());
layout_.ComputeTwoUpViewLayout({gfx::Size(200, 100), gfx::Size(100, 200)});
EXPECT_TRUE(layout_.dirty());
layout_.clear_dirty();
layout_.ComputeTwoUpViewLayout(
{gfx::Size(200, 100), gfx::Size(100, 200), gfx::Size(300, 300)});
EXPECT_TRUE(layout_.dirty());
layout_.clear_dirty();
layout_.ComputeTwoUpViewLayout({gfx::Size(200, 100), gfx::Size(100, 200)});
EXPECT_TRUE(layout_.dirty());
}
} // namespace
} // namespace chrome_pdf