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content / public / test / test_utils_unittest.cc [blame]
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/public/test/test_utils.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_runner.h"
#include "base/task/thread_pool.h"
#include "base/test/bind.h"
#include "base/test/task_environment.h"
#include "base/threading/platform_thread.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
// Regression test for crbug.com/1035189.
TEST(ContentTestUtils, NestedRunAllTasksUntilIdleWithPendingThreadPoolWork) {
base::test::TaskEnvironment task_environment;
bool thread_pool_task_completed = false;
base::ThreadPool::PostTask(
FROM_HERE, {}, base::BindLambdaForTesting([&]() {
base::PlatformThread::Sleep(base::Milliseconds(100));
thread_pool_task_completed = true;
}));
base::RunLoop run_loop;
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindLambdaForTesting([&]() {
// Nested RunAllTasksUntilIdle() (i.e. crbug.com/1035189).
content::RunAllTasksUntilIdle();
EXPECT_TRUE(thread_pool_task_completed);
run_loop.Quit();
}));
run_loop.Run();
EXPECT_TRUE(thread_pool_task_completed);
}
// Regression test for crbug.com/1035604.
TEST(ContentTestUtils, FlushRealIOThread) {
content::BrowserTaskEnvironment task_environment{
content::BrowserTaskEnvironment::REAL_IO_THREAD};
bool io_task_completed = false;
content::GetIOThreadTaskRunner({})->PostTask(
FROM_HERE, base::BindLambdaForTesting([&]() {
base::PlatformThread::Sleep(base::Milliseconds(100));
io_task_completed = true;
}));
content::RunAllPendingInMessageLoop(content::BrowserThread::IO);
EXPECT_TRUE(io_task_completed);
}
TEST(ContentTestUtils, NestedFlushRealIOThread) {
content::BrowserTaskEnvironment task_environment{
content::BrowserTaskEnvironment::REAL_IO_THREAD};
bool io_task_completed = false;
content::GetIOThreadTaskRunner({})->PostTask(
FROM_HERE, base::BindLambdaForTesting([&]() {
base::PlatformThread::Sleep(base::Milliseconds(100));
io_task_completed = true;
}));
base::RunLoop run_loop;
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindLambdaForTesting([&]() {
content::RunAllPendingInMessageLoop(content::BrowserThread::IO);
EXPECT_TRUE(io_task_completed);
run_loop.Quit();
}));
run_loop.Run();
EXPECT_TRUE(io_task_completed);
}
TEST(ContentTestUtils, FlushRealIOThreadWithPendingBestEffortTask) {
content::BrowserTaskEnvironment task_environment{
content::BrowserTaskEnvironment::REAL_IO_THREAD};
bool io_task_completed = false;
content::GetIOThreadTaskRunner({base::TaskPriority::BEST_EFFORT})
->PostTask(FROM_HERE, base::BindLambdaForTesting([&]() {
base::PlatformThread::Sleep(base::Milliseconds(100));
io_task_completed = true;
}));
content::RunAllPendingInMessageLoop(content::BrowserThread::IO);
EXPECT_TRUE(io_task_completed);
}
// Same as FlushRealIOThreadWithPendingBestEffortTask but when BrowserThread::IO
// is multiplexed with BrowserThread::UI on the main thread (i.e. the default
// under BrowserTaskEnvironment).
TEST(ContentTestUtils, FlushFakeIOThread) {
content::BrowserTaskEnvironment task_environment;
bool io_task_completed = false;
content::GetIOThreadTaskRunner({base::TaskPriority::BEST_EFFORT})
->PostTask(FROM_HERE, base::BindLambdaForTesting([&]() {
base::PlatformThread::Sleep(base::Milliseconds(100));
io_task_completed = true;
}));
content::RunAllPendingInMessageLoop(content::BrowserThread::IO);
EXPECT_TRUE(io_task_completed);
}
TEST(ContentTestUtils, FlushUIThread) {
content::BrowserTaskEnvironment task_environment;
bool ui_task_completed = false;
content::GetUIThreadTaskRunner({base::TaskPriority::BEST_EFFORT})
->PostTask(FROM_HERE, base::BindLambdaForTesting([&]() {
base::PlatformThread::Sleep(base::Milliseconds(100));
ui_task_completed = true;
}));
content::RunAllPendingInMessageLoop(content::BrowserThread::UI);
EXPECT_TRUE(ui_task_completed);
}