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// Copyright 2015 The Weave Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef LIBWEAVE_INCLUDE_WEAVE_PROVIDER_TEST_FAKE_TASK_RUNNER_H_
#define LIBWEAVE_INCLUDE_WEAVE_PROVIDER_TEST_FAKE_TASK_RUNNER_H_
#include <weave/provider/task_runner.h>
#include <algorithm>
#include <queue>
#include <memory>
#include <utility>
#include <vector>
#include <base/time/clock.h>
namespace weave {
namespace provider {
namespace test {
class FakeTaskRunner : public TaskRunner {
public:
FakeTaskRunner();
~FakeTaskRunner() override;
void PostDelayedTask(const tracked_objects::Location& from_here,
const base::Closure& task,
base::TimeDelta delay) override;
bool RunOnce();
void Run(size_t number_of_iterations = 1000);
void Break();
base::Clock* GetClock();
size_t GetTaskQueueSize() const;
private:
using QueueItem = std::pair<std::pair<base::Time, size_t>, base::Closure>;
struct Greater {
bool operator()(const QueueItem& a, const QueueItem& b) const {
return a.first > b.first;
}
};
bool break_{false};
size_t counter_{0}; // Keeps order of tasks with the same time.
class TestClock;
std::unique_ptr<TestClock> test_clock_;
std::priority_queue<QueueItem,
std::vector<QueueItem>,
FakeTaskRunner::Greater>
queue_;
};
} // namespace test
} // namespace provider
} // namespace weave
#endif // LIBWEAVE_INCLUDE_WEAVE_PROVIDER_TEST_FAKE_TASK_RUNNER_H_