15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright 2013 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef MOJO_SYSTEM_TEST_UTILS_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define MOJO_SYSTEM_TEST_UTILS_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stdint.h> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/callback_forward.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/compiler_specific.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/macros.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/ref_counted.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/task_runner.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/threading/thread.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/time/time.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace tracked_objects { 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class Location; 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace mojo { 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace system { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace test { 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Posts the given task (to the given task runner) and waits for it to complete. 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// (Note: Doesn't spin the current thread's message loop, so if you're careless 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// this could easily deadlock.) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PostTaskAndWait(scoped_refptr<base::TaskRunner> task_runner, 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const tracked_objects::Location& from_here, 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Closure& task); 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A timeout smaller than |TestTimeouts::tiny_timeout()|. Warning: This may lead 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// to flakiness, but this is unavoidable if, e.g., you're trying to ensure that 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// functions with timeouts are reasonably accurate. We want this to be as small 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// as possible without causing too much flakiness. 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)base::TimeDelta EpsilonTimeout(); 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Stopwatch ------------------------------------------------------------------- 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A simple "stopwatch" for measuring time elapsed from a given starting point. 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class Stopwatch { 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Stopwatch() {} 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~Stopwatch() {} 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void Start() { start_time_ = base::TimeTicks::Now(); } 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeDelta Elapsed() { return base::TimeTicks::Now() - start_time_; } 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeTicks start_time_; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(Stopwatch); 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace test 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace system 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace mojo 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // MOJO_SYSTEM_TEST_UTILS_H_ 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)