chromium/base/task/thread_pool/test_task_factory.h

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef BASE_TASK_THREAD_POOL_TEST_TASK_FACTORY_H_
#define BASE_TASK_THREAD_POOL_TEST_TASK_FACTORY_H_

#include <stddef.h>

#include <unordered_set>

#include "base/functional/callback_forward.h"
#include "base/memory/ref_counted.h"
#include "base/synchronization/condition_variable.h"
#include "base/synchronization/lock.h"
#include "base/task/task_runner.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool/test_utils.h"
#include "base/threading/thread_checker_impl.h"

namespace base {
namespace internal {
namespace test {

// A TestTaskFactory posts tasks to a TaskRunner and verifies that they run as
// expected. Generates a test failure when:
// - The RunsTasksInCurrentSequence() method of the SequencedTaskRunner
//   (kSequenced or kSingleThread modes) returns false on a thread on which a
//   Task is run.
// - The task runner CurrentDefaultHandles set in the context of the task don't
//   match what's expected for the tested TaskSourceExecutionMode.
// - The TaskSourceExecutionMode of the TaskRunner is kSequenced or
//   kSingleThread and Tasks don't run in posting order.
// - The TaskSourceExecutionMode of the TaskRunner is kSingleThread and Tasks
//   don't run on the same thread.
// - A Task runs more than once.
class TestTaskFactory { … };

}  // namespace test
}  // namespace internal
}  // namespace base

#endif  // BASE_TASK_THREAD_POOL_TEST_TASK_FACTORY_H_