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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/exo/wayland/server.h"
#include <stdlib.h>
#include <memory>
#include <wayland-client-core.h>
#include <wayland-server-core.h>
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/functional/bind.h"
#include "base/run_loop.h"
#include "base/synchronization/lock.h"
#include "base/test/bind.h"
#include "base/threading/thread.h"
#include "components/exo/display.h"
#include "components/exo/security_delegate.h"
#include "components/exo/wayland/server_util.h"
#include "components/exo/wayland/test/wayland_server_test_base.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace exo::wayland {
using ServerTest = test::WaylandServerTestBase;
struct TestListener {
public:
TestListener();
wl_listener listener;
bool notified = false;
};
TestListener::TestListener() {
listener.notify = [](wl_listener* listener_ptr, void* data) {
TestListener* test_listener = wl_container_of(
listener_ptr, /*sample=*/test_listener, /*member=*/listener);
test_listener->notified = true;
};
}
TEST_F(ServerTest, Open) {
auto server = CreateServer();
// Check that calling Open() succeeds.
bool rv = server->Open();
EXPECT_TRUE(rv);
}
TEST_F(ServerTest, GetFileDescriptor) {
auto server = CreateServer();
bool rv = server->Open();
EXPECT_TRUE(rv);
// Check that the returned file descriptor is valid.
int fd = server->GetFileDescriptor();
DCHECK_GE(fd, 0);
}
TEST_F(ServerTest, SecurityDelegateAssociation) {
std::unique_ptr<SecurityDelegate> security_delegate =
SecurityDelegate::GetDefaultSecurityDelegate();
SecurityDelegate* security_delegate_ptr = security_delegate.get();
auto server = CreateServer(std::move(security_delegate));
EXPECT_EQ(GetSecurityDelegate(server->GetWaylandDisplay()),
security_delegate_ptr);
}
TEST_F(ServerTest, StartFd) {
ScopedTempSocket sock;
auto server = CreateServer();
base::RunLoop start_loop;
server->StartWithFdAsync(sock.TakeFd(),
base::BindLambdaForTesting([&](bool success) {
EXPECT_TRUE(success);
start_loop.Quit();
}));
start_loop.Run();
base::Thread client_thread("client");
client_thread.Start();
wl_display* client_display = nullptr;
base::RunLoop connect_loop;
client_thread.task_runner()->PostTaskAndReply(
FROM_HERE, base::BindLambdaForTesting([&]() {
client_display =
wl_display_connect(sock.server_path().MaybeAsASCII().c_str());
int events = wl_display_roundtrip(client_display);
EXPECT_GE(events, 0);
}),
connect_loop.QuitClosure());
connect_loop.Run();
EXPECT_NE(client_display, nullptr);
wl_list* all_clients =
wl_display_get_client_list(server->GetWaylandDisplay());
ASSERT_FALSE(wl_list_empty(all_clients));
wl_client* client = wl_client_from_link(all_clients->next);
TestListener client_destruction_listener;
wl_client_add_destroy_listener(client, &client_destruction_listener.listener);
client_thread.task_runner()->PostTask(
FROM_HERE, base::BindLambdaForTesting(
[&]() { wl_display_disconnect(client_display); }));
while (!client_destruction_listener.notified) {
server->Dispatch(base::Milliseconds(10));
}
}
TEST_F(ServerTest, Dispatch) {
auto server = CreateServer();
bool rv = server->Open();
EXPECT_TRUE(rv);
base::Thread client_thread("client");
client_thread.Start();
TestListener client_creation_listener;
wl_display_add_client_created_listener(server->GetWaylandDisplay(),
&client_creation_listener.listener);
base::Lock lock;
wl_display* client_display = nullptr;
bool connected_to_server = false;
client_thread.task_runner()->PostTask(
FROM_HERE, base::BindLambdaForTesting([&]() {
// As soon as wl_display_connect() is executed, the server side could
// notify client creation and exit the while-loop. Therefore, the lock
// is required to ensure `connected_to_server` is set before it is
// accessed on the main thread.
base::AutoLock locker(lock);
client_display = wl_display_connect(nullptr);
connected_to_server = !!client_display;
}));
while (!client_creation_listener.notified) {
server->Dispatch(base::Milliseconds(10));
}
// Remove the listener from the display's client creation signal.
wl_list_remove(&client_creation_listener.listener.link);
{
base::AutoLock locker(lock);
EXPECT_TRUE(connected_to_server);
}
wl_list* all_clients =
wl_display_get_client_list(server->GetWaylandDisplay());
ASSERT_FALSE(wl_list_empty(all_clients));
wl_client* client = wl_client_from_link(all_clients->next);
TestListener client_destruction_listener;
wl_client_add_destroy_listener(client, &client_destruction_listener.listener);
client_thread.task_runner()->PostTask(
FROM_HERE, base::BindLambdaForTesting(
[&]() { wl_display_disconnect(client_display); }));
while (!client_destruction_listener.notified) {
server->Dispatch(base::Milliseconds(10));
}
// Remove the listener from the client's destroy signal.
wl_list_remove(&client_destruction_listener.listener.link);
}
TEST_F(ServerTest, Flush) {
auto server = CreateServer();
bool rv = server->Open();
EXPECT_TRUE(rv);
// Just call Flush to check that it doesn't have any bad side-effects.
server->Flush();
}
} // namespace exo::wayland
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