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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/bind.h"
#include "base/files/file_path.h"
#include "base/files/file_util.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/gmock/include/gmock/gmock.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, AddSocket) {
auto server = CreateServer(SecurityDelegate::GetDefaultSecurityDelegate());
// Check that calling AddSocket() with a unique socket name succeeds.
bool rv = server->AddSocket(GetUniqueSocketName());
EXPECT_TRUE(rv);
}
TEST_F(ServerTest, GetFileDescriptor) {
auto server = CreateServer(SecurityDelegate::GetDefaultSecurityDelegate());
bool rv = server->AddSocket(GetUniqueSocketName());
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->GetWaylandDisplayForTesting()),
security_delegate_ptr);
}
TEST_F(ServerTest, CreateAsync) {
using MockServerFunction =
testing::MockFunction<void(bool, const base::FilePath&)>;
base::ScopedTempDir non_xdg_dir;
ASSERT_TRUE(non_xdg_dir.CreateUniqueTempDir());
base::RunLoop run_loop;
base::FilePath server_socket;
MockServerFunction server_callback;
EXPECT_CALL(server_callback, Call(testing::_, testing::_))
.WillOnce(testing::Invoke([&run_loop, &server_socket](
bool success, const base::FilePath& path) {
EXPECT_TRUE(success);
server_socket = path;
run_loop.Quit();
}));
auto server = CreateServer();
server->StartAsync(base::BindOnce(&MockServerFunction::Call,
base::Unretained(&server_callback)));
run_loop.Run();
// Should create a directory for the server.
EXPECT_TRUE(base::DirectoryExists(server_socket.DirName()));
// Must not be a child of the XDG dir.
EXPECT_TRUE(base::IsDirectoryEmpty(xdg_temp_dir_.GetPath()));
// Must be deleted when the helper is removed.
server.reset();
EXPECT_FALSE(base::PathExists(server_socket));
}
TEST_F(ServerTest, Dispatch) {
auto server = CreateServer(SecurityDelegate::GetDefaultSecurityDelegate());
std::string socket_name = GetUniqueSocketName();
bool rv = server->AddSocket(socket_name);
EXPECT_TRUE(rv);
base::Thread client_thread("client-" + socket_name);
client_thread.Start();
TestListener client_creation_listener;
wl_display_add_client_created_listener(server->GetWaylandDisplayForTesting(),
&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(socket_name.c_str());
connected_to_server = !!client_display;
}));
while (!client_creation_listener.notified)
server->Dispatch(base::Milliseconds(10));
{
base::AutoLock locker(lock);
EXPECT_TRUE(connected_to_server);
}
wl_list* all_clients =
wl_display_get_client_list(server->GetWaylandDisplayForTesting());
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, Flush) {
auto server = CreateServer(SecurityDelegate::GetDefaultSecurityDelegate());
bool rv = server->AddSocket(GetUniqueSocketName());
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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