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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <array>
#include <memory>
#include "base/command_line.h"
#include "base/test/task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/aura/screen_ozone.h"
#include "ui/display/linux/test/virtual_display_util_linux.h"
#include "ui/display/screen.h"
#include "ui/display/types/display_constants.h"
// This test suite requires the host to have special Xorg/Xrandr configuration.
// See: //docs/ui/display/multiscreen_testing.md
class VirtualDisplayUtilLinuxInteractiveUitest : public testing::Test {
public:
VirtualDisplayUtilLinuxInteractiveUitest(
const VirtualDisplayUtilLinuxInteractiveUitest&) = delete;
VirtualDisplayUtilLinuxInteractiveUitest& operator=(
const VirtualDisplayUtilLinuxInteractiveUitest&) = delete;
protected:
VirtualDisplayUtilLinuxInteractiveUitest() = default;
~VirtualDisplayUtilLinuxInteractiveUitest() override = default;
void SetUp() override {
if (!display::test::VirtualDisplayUtilLinux::IsAPIAvailable()) {
GTEST_SKIP() << "Host does not support virtual displays.";
}
CHECK(!display::Screen::HasScreen());
screen_ = std::make_unique<aura::ScreenOzone>();
virtual_display_util_ =
std::make_unique<display::test::VirtualDisplayUtilLinux>(screen());
testing::Test::SetUp();
}
display::Screen* screen() { return screen_.get(); }
base::test::TaskEnvironment task_environment_{
base::test::TaskEnvironment::MainThreadType::UI};
std::unique_ptr<aura::ScreenOzone> screen_;
std::unique_ptr<display::test::VirtualDisplayUtilLinux> virtual_display_util_;
};
TEST_F(VirtualDisplayUtilLinuxInteractiveUitest, IsAPIAvailable) {
EXPECT_TRUE(virtual_display_util_->IsAPIAvailable());
}
TEST_F(VirtualDisplayUtilLinuxInteractiveUitest, AddRemove) {
std::array<int64_t, 3> display_id;
int initial_display_count = screen()->GetNumDisplays();
display_id[0] = virtual_display_util_->AddDisplay(
display::test::VirtualDisplayUtilLinux::k1920x1080);
EXPECT_NE(display_id[0], display::kInvalidDisplayId);
display::Display d;
EXPECT_EQ(screen()->GetNumDisplays(), initial_display_count + 1);
EXPECT_TRUE(screen()->GetDisplayWithDisplayId(display_id[0], &d));
EXPECT_EQ(d.size(), gfx::Size(1920, 1080));
display_id[1] = virtual_display_util_->AddDisplay(
display::test::VirtualDisplayUtilLinux::k1024x768);
EXPECT_NE(display_id[1], display::kInvalidDisplayId);
EXPECT_EQ(screen()->GetNumDisplays(), initial_display_count + 2);
EXPECT_TRUE(screen()->GetDisplayWithDisplayId(display_id[1], &d));
EXPECT_EQ(d.size(), gfx::Size(1024, 768));
display_id[2] = virtual_display_util_->AddDisplay(
display::test::VirtualDisplayUtilLinux::k1920x1080);
EXPECT_NE(display_id[2], display::kInvalidDisplayId);
EXPECT_EQ(screen()->GetNumDisplays(), initial_display_count + 3);
EXPECT_TRUE(screen()->GetDisplayWithDisplayId(display_id[2], &d));
EXPECT_EQ(d.size(), gfx::Size(1920, 1080));
virtual_display_util_->RemoveDisplay(display_id[1]);
EXPECT_EQ(screen()->GetNumDisplays(), initial_display_count + 2);
// Only virtual display 2 should no longer exist.
EXPECT_TRUE(screen()->GetDisplayWithDisplayId(display_id[0], &d));
EXPECT_EQ(d.size(), gfx::Size(1920, 1080));
EXPECT_FALSE(screen()->GetDisplayWithDisplayId(display_id[1], &d));
EXPECT_TRUE(screen()->GetDisplayWithDisplayId(display_id[2], &d));
EXPECT_EQ(d.size(), gfx::Size(1920, 1080));
virtual_display_util_->ResetDisplays();
EXPECT_FALSE(screen()->GetDisplayWithDisplayId(display_id[0], &d));
EXPECT_FALSE(screen()->GetDisplayWithDisplayId(display_id[1], &d));
EXPECT_FALSE(screen()->GetDisplayWithDisplayId(display_id[2], &d));
EXPECT_EQ(screen()->GetNumDisplays(), initial_display_count);
}
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