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// Copyright 2013 The Chromium 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 MOJO_EDK_SYSTEM_TEST_UTILS_H_
#define MOJO_EDK_SYSTEM_TEST_UTILS_H_
#include "base/macros.h"
#include "base/time/time.h"
#include "mojo/public/c/system/types.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace mojo {
namespace edk {
namespace test {
MojoDeadline DeadlineFromMilliseconds(unsigned milliseconds);
// A timeout smaller than |TestTimeouts::tiny_timeout()|, as a |MojoDeadline|.
// Warning: This may lead to flakiness, but this is unavoidable if, e.g., you're
// trying to ensure that functions with timeouts are reasonably accurate. We
// want this to be as small as possible without causing too much flakiness.
MojoDeadline EpsilonDeadline();
// |TestTimeouts::tiny_timeout()|, as a |MojoDeadline|. (Expect this to be on
// the order of 100 ms.)
MojoDeadline TinyDeadline();
// |TestTimeouts::action_timeout()|, as a |MojoDeadline|. (Expect this to be on
// the order of 10 s.)
MojoDeadline ActionDeadline();
// Sleeps for at least the specified duration.
void Sleep(MojoDeadline deadline);
// Stopwatch -------------------------------------------------------------------
// A simple "stopwatch" for measuring time elapsed from a given starting point.
class Stopwatch {
public:
Stopwatch();
~Stopwatch();
void Start();
// Returns the amount of time elapsed since the last call to |Start()| (in
// microseconds).
MojoDeadline Elapsed();
private:
base::TimeTicks start_time_;
DISALLOW_COPY_AND_ASSIGN(Stopwatch);
};
} // namespace test
} // namespace edk
} // namespace mojo
#endif // MOJO_EDK_SYSTEM_TEST_UTILS_H_
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