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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/task/lazy_thread_pool_task_runner.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/sequence_checker_impl.h"
#include "base/task/scoped_set_task_priority_for_current_thread.h"
#include "base/test/task_environment.h"
#include "base/threading/thread_checker_impl.h"
#include "build/build_config.h"
#include "testing/gtest/include/gtest/gtest.h"
#if BUILDFLAG(IS_WIN)
#include "base/win/com_init_util.h"
#endif
namespace base {
namespace {
LazyThreadPoolSequencedTaskRunner g_sequenced_task_runner_user_visible =
LAZY_THREAD_POOL_SEQUENCED_TASK_RUNNER_INITIALIZER(
TaskTraits(TaskPriority::USER_VISIBLE));
LazyThreadPoolSequencedTaskRunner g_sequenced_task_runner_user_blocking =
LAZY_THREAD_POOL_SEQUENCED_TASK_RUNNER_INITIALIZER(
TaskTraits(TaskPriority::USER_BLOCKING));
LazyThreadPoolSingleThreadTaskRunner g_single_thread_task_runner_user_visible =
LAZY_THREAD_POOL_SINGLE_THREAD_TASK_RUNNER_INITIALIZER(
TaskTraits(TaskPriority::USER_VISIBLE),
SingleThreadTaskRunnerThreadMode::SHARED);
LazyThreadPoolSingleThreadTaskRunner g_single_thread_task_runner_user_blocking =
LAZY_THREAD_POOL_SINGLE_THREAD_TASK_RUNNER_INITIALIZER(
TaskTraits(TaskPriority::USER_BLOCKING),
SingleThreadTaskRunnerThreadMode::SHARED);
#if BUILDFLAG(IS_WIN)
LazyThreadPoolCOMSTATaskRunner g_com_sta_task_runner_user_visible =
LAZY_COM_STA_TASK_RUNNER_INITIALIZER(
TaskTraits(TaskPriority::USER_VISIBLE),
SingleThreadTaskRunnerThreadMode::SHARED);
LazyThreadPoolCOMSTATaskRunner g_com_sta_task_runner_user_blocking =
LAZY_COM_STA_TASK_RUNNER_INITIALIZER(
TaskTraits(TaskPriority::USER_BLOCKING),
SingleThreadTaskRunnerThreadMode::SHARED);
#endif // BUILDFLAG(IS_WIN)
void InitCheckers(SequenceCheckerImpl* sequence_checker,
ThreadCheckerImpl* thread_checker) {
sequence_checker->DetachFromSequence();
EXPECT_TRUE(sequence_checker->CalledOnValidSequence());
thread_checker->DetachFromThread();
EXPECT_TRUE(thread_checker->CalledOnValidThread());
}
void ExpectSequencedEnvironment(SequenceCheckerImpl* sequence_checker,
ThreadCheckerImpl* thread_checker,
TaskPriority expected_priority) {
EXPECT_TRUE(sequence_checker->CalledOnValidSequence());
EXPECT_FALSE(thread_checker->CalledOnValidThread());
EXPECT_EQ(expected_priority, internal::GetTaskPriorityForCurrentThread());
}
void ExpectSingleThreadEnvironment(SequenceCheckerImpl* sequence_checker,
ThreadCheckerImpl* thread_checker,
TaskPriority expected_priority
#if BUILDFLAG(IS_WIN)
,
bool expect_com_sta = false
#endif
) {
EXPECT_TRUE(sequence_checker->CalledOnValidSequence());
EXPECT_TRUE(thread_checker->CalledOnValidThread());
EXPECT_EQ(expected_priority, internal::GetTaskPriorityForCurrentThread());
#if BUILDFLAG(IS_WIN)
if (expect_com_sta)
win::AssertComApartmentType(win::ComApartmentType::STA);
#endif
}
class LazyThreadPoolTaskRunnerEnvironmentTest : public testing::Test {
public:
LazyThreadPoolTaskRunnerEnvironmentTest(
const LazyThreadPoolTaskRunnerEnvironmentTest&) = delete;
LazyThreadPoolTaskRunnerEnvironmentTest& operator=(
const LazyThreadPoolTaskRunnerEnvironmentTest&) = delete;
protected:
LazyThreadPoolTaskRunnerEnvironmentTest() = default;
void TestTaskRunnerEnvironment(scoped_refptr<SequencedTaskRunner> task_runner,
bool expect_single_thread,
TaskPriority expected_priority
#if BUILDFLAG(IS_WIN)
,
bool expect_com_sta = false
#endif
) {
SequenceCheckerImpl sequence_checker;
ThreadCheckerImpl thread_checker;
task_runner->PostTask(FROM_HERE,
BindOnce(&InitCheckers, Unretained(&sequence_checker),
Unretained(&thread_checker)));
task_environment_.RunUntilIdle();
OnceClosure task =
expect_single_thread
? BindOnce(&ExpectSingleThreadEnvironment,
Unretained(&sequence_checker),
Unretained(&thread_checker), expected_priority
#if BUILDFLAG(IS_WIN)
,
expect_com_sta
#endif
)
: BindOnce(&ExpectSequencedEnvironment,
Unretained(&sequence_checker),
Unretained(&thread_checker), expected_priority);
task_runner->PostTask(FROM_HERE, std::move(task));
task_environment_.RunUntilIdle();
}
test::TaskEnvironment task_environment_;
};
} // namespace
TEST_F(LazyThreadPoolTaskRunnerEnvironmentTest,
LazyThreadPoolSequencedTaskRunnerUserVisible) {
TestTaskRunnerEnvironment(g_sequenced_task_runner_user_visible.Get(), false,
TaskPriority::USER_VISIBLE);
}
TEST_F(LazyThreadPoolTaskRunnerEnvironmentTest,
LazyThreadPoolSequencedTaskRunnerUserBlocking) {
TestTaskRunnerEnvironment(g_sequenced_task_runner_user_blocking.Get(), false,
TaskPriority::USER_BLOCKING);
}
TEST_F(LazyThreadPoolTaskRunnerEnvironmentTest,
LazyThreadPoolSingleThreadTaskRunnerUserVisible) {
TestTaskRunnerEnvironment(g_single_thread_task_runner_user_visible.Get(),
true, TaskPriority::USER_VISIBLE);
}
TEST_F(LazyThreadPoolTaskRunnerEnvironmentTest,
LazyThreadPoolSingleThreadTaskRunnerUserBlocking) {
TestTaskRunnerEnvironment(g_single_thread_task_runner_user_blocking.Get(),
true, TaskPriority::USER_BLOCKING);
}
#if BUILDFLAG(IS_WIN)
TEST_F(LazyThreadPoolTaskRunnerEnvironmentTest,
LazyThreadPoolCOMSTATaskRunnerUserVisible) {
TestTaskRunnerEnvironment(g_com_sta_task_runner_user_visible.Get(), true,
TaskPriority::USER_VISIBLE, true);
}
TEST_F(LazyThreadPoolTaskRunnerEnvironmentTest,
LazyThreadPoolCOMSTATaskRunnerUserBlocking) {
TestTaskRunnerEnvironment(g_com_sta_task_runner_user_blocking.Get(), true,
TaskPriority::USER_BLOCKING, true);
}
#endif // BUILDFLAG(IS_WIN)
TEST(LazyThreadPoolTaskRunnerTest, LazyThreadPoolSequencedTaskRunnerReset) {
for (int i = 0; i < 2; ++i) {
test::TaskEnvironment task_environment;
// If the TaskRunner isn't released when the test::TaskEnvironment
// goes out of scope, the second invocation of the line below will access a
// deleted ThreadPoolInstance and crash.
g_sequenced_task_runner_user_visible.Get()->PostTask(FROM_HERE,
DoNothing());
}
}
TEST(LazyThreadPoolTaskRunnerTest, LazyThreadPoolSingleThreadTaskRunnerReset) {
for (int i = 0; i < 2; ++i) {
test::TaskEnvironment task_environment;
// If the TaskRunner isn't released when the test::TaskEnvironment
// goes out of scope, the second invocation of the line below will access a
// deleted ThreadPoolInstance and crash.
g_single_thread_task_runner_user_visible.Get()->PostTask(FROM_HERE,
DoNothing());
}
}
#if BUILDFLAG(IS_WIN)
TEST(LazyThreadPoolTaskRunnerTest, LazyThreadPoolCOMSTATaskRunnerReset) {
for (int i = 0; i < 2; ++i) {
test::TaskEnvironment task_environment;
// If the TaskRunner isn't released when the test::TaskEnvironment
// goes out of scope, the second invocation of the line below will access a
// deleted ThreadPoolInstance and crash.
g_com_sta_task_runner_user_visible.Get()->PostTask(FROM_HERE, DoNothing());
}
}
#endif // BUILDFLAG(IS_WIN)
} // namespace base
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