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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/views/layout/box_layout_view.h"
#include <memory>
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/geometry/insets.h"
#include "ui/views/test/views_test_utils.h"
#include "ui/views/view_test_api.h"
namespace views {
class BoxLayoutViewTest : public testing::Test {
public:
void SetUp() override { host_ = std::make_unique<BoxLayoutView>(); }
BoxLayoutView* host() { return host_.get(); }
private:
std::unique_ptr<BoxLayoutView> host_;
};
TEST_F(BoxLayoutViewTest, LayoutInvalidationWhenPropertyChanged) {
ViewTestApi view_test_api(host());
auto reset_layout = [&]() {
EXPECT_TRUE(view_test_api.needs_layout());
// Call layout() to set layout to a valid state.
test::RunScheduledLayout(host());
};
// Ensure host() starts with a valid layout.
test::RunScheduledLayout(host());
EXPECT_FALSE(view_test_api.needs_layout());
EXPECT_NE(BoxLayout::Orientation::kVertical, host()->GetOrientation());
host()->SetOrientation(BoxLayout::Orientation::kVertical);
reset_layout();
EXPECT_FALSE(view_test_api.needs_layout());
EXPECT_NE(BoxLayout::MainAxisAlignment::kEnd, host()->GetMainAxisAlignment());
host()->SetMainAxisAlignment(BoxLayout::MainAxisAlignment::kEnd);
reset_layout();
EXPECT_FALSE(view_test_api.needs_layout());
EXPECT_NE(BoxLayout::CrossAxisAlignment::kEnd,
host()->GetCrossAxisAlignment());
host()->SetCrossAxisAlignment(BoxLayout::CrossAxisAlignment::kEnd);
reset_layout();
EXPECT_FALSE(view_test_api.needs_layout());
constexpr gfx::Insets inside_border_insets(10);
EXPECT_NE(inside_border_insets, host()->GetInsideBorderInsets());
host()->SetInsideBorderInsets(inside_border_insets);
reset_layout();
EXPECT_FALSE(view_test_api.needs_layout());
constexpr int minimum_cross_axis_size = 10;
EXPECT_NE(minimum_cross_axis_size, host()->GetMinimumCrossAxisSize());
host()->SetMinimumCrossAxisSize(minimum_cross_axis_size);
reset_layout();
EXPECT_FALSE(view_test_api.needs_layout());
constexpr int between_child_spacing = 10;
EXPECT_NE(between_child_spacing, host()->GetBetweenChildSpacing());
host()->SetBetweenChildSpacing(between_child_spacing);
reset_layout();
EXPECT_FALSE(view_test_api.needs_layout());
constexpr bool collapse_margins_spacing = true;
EXPECT_NE(collapse_margins_spacing, host()->GetCollapseMarginsSpacing());
host()->SetCollapseMarginsSpacing(collapse_margins_spacing);
reset_layout();
EXPECT_FALSE(view_test_api.needs_layout());
constexpr int default_flex = 10;
EXPECT_NE(default_flex, host()->GetDefaultFlex());
host()->SetDefaultFlex(default_flex);
reset_layout();
}
TEST_F(BoxLayoutViewTest, NoLayoutInvalidationWhenPropertyUnchanged) {
ViewTestApi view_test_api(host());
// Ensure view starts with a valid layout.
test::RunScheduledLayout(host());
EXPECT_FALSE(view_test_api.needs_layout());
host()->SetOrientation(host()->GetOrientation());
host()->SetMainAxisAlignment(host()->GetMainAxisAlignment());
host()->SetCrossAxisAlignment(host()->GetCrossAxisAlignment());
host()->SetInsideBorderInsets(host()->GetInsideBorderInsets());
host()->SetMinimumCrossAxisSize(host()->GetMinimumCrossAxisSize());
host()->SetBetweenChildSpacing(host()->GetBetweenChildSpacing());
host()->SetCollapseMarginsSpacing(host()->GetCollapseMarginsSpacing());
host()->SetDefaultFlex(host()->GetDefaultFlex());
EXPECT_FALSE(view_test_api.needs_layout());
}
} // namespace views
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