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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/sync_file_system/drive_backend/callback_helper.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/location.h"
#include "base/run_loop.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/single_thread_task_runner.h"
#include "base/test/task_environment.h"
#include "base/threading/thread.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace sync_file_system {
namespace drive_backend {
namespace {
void SimpleCallback(bool* called, int) {
ASSERT_TRUE(called);
EXPECT_FALSE(*called);
*called = true;
}
void CallbackWithPassed(bool* called, std::unique_ptr<int>) {
ASSERT_TRUE(called);
EXPECT_FALSE(*called);
*called = true;
}
void VerifyCalledOnTaskRunner(base::SingleThreadTaskRunner* task_runner,
bool* called) {
ASSERT_TRUE(called);
ASSERT_TRUE(task_runner);
EXPECT_TRUE(task_runner->RunsTasksInCurrentSequence());
EXPECT_FALSE(*called);
*called = true;
}
} // namespace
TEST(DriveBackendCallbackHelperTest, BasicTest) {
base::test::SingleThreadTaskEnvironment task_environment;
bool called = false;
RelayCallbackToCurrentThread(FROM_HERE,
base::BindOnce(&SimpleCallback, &called))
.Run(0);
EXPECT_FALSE(called);
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(called);
called = false;
RelayCallbackToCurrentThread(FROM_HERE,
base::BindOnce(&CallbackWithPassed, &called))
.Run(std::unique_ptr<int>(new int));
EXPECT_FALSE(called);
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(called);
}
TEST(DriveBackendCallbackHelperTest, RunOnOtherThreadTest) {
base::test::SingleThreadTaskEnvironment task_environment;
base::Thread thread("WorkerThread");
thread.Start();
scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner =
base::SingleThreadTaskRunner::GetCurrentDefault();
scoped_refptr<base::SequencedTaskRunner> worker_task_runner =
thread.task_runner();
bool called = false;
base::RunLoop run_loop;
worker_task_runner->PostTask(
FROM_HERE,
RelayCallbackToTaskRunner(
ui_task_runner.get(), FROM_HERE,
base::BindOnce(&VerifyCalledOnTaskRunner,
base::RetainedRef(ui_task_runner), &called)));
worker_task_runner->PostTask(
FROM_HERE,
RelayCallbackToTaskRunner(
ui_task_runner.get(), FROM_HERE, run_loop.QuitClosure()));
run_loop.Run();
EXPECT_TRUE(called);
thread.Stop();
base::RunLoop().RunUntilIdle();
}
TEST(DriveBackendCallbackHelperTest, PassNullFunctionTest) {
base::test::SingleThreadTaskEnvironment task_environment;
base::OnceClosure closure =
RelayCallbackToCurrentThread(FROM_HERE, base::OnceClosure());
EXPECT_TRUE(closure.is_null());
}
} // namespace drive_backend
} // namespace sync_file_system
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