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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include <windows.h> | 5 #include <windows.h> |
6 #include <mmsystem.h> | 6 #include <mmsystem.h> |
7 #include <process.h> | 7 #include <process.h> |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <cmath> | 10 #include <cmath> |
11 #include <limits> | 11 #include <limits> |
12 #include <vector> | 12 #include <vector> |
13 | 13 |
14 #include "base/threading/platform_thread.h" | 14 #include "base/threading/platform_thread.h" |
15 #include "base/time/time.h" | 15 #include "base/time/time.h" |
16 #include "base/win/registry.h" | 16 #include "base/win/registry.h" |
17 #include "testing/gtest/include/gtest/gtest.h" | 17 #include "testing/gtest/include/gtest/gtest.h" |
18 | 18 |
19 namespace base { | 19 namespace base { |
20 namespace { | 20 namespace { |
21 | 21 |
22 // For TimeDelta::ConstexprInitialization | |
23 constexpr int kExpectedDeltaInMilliseconds = 10; | |
24 constexpr TimeDelta kConstexprTimeDelta = | |
25 TimeDelta::FromMilliseconds(kExpectedDeltaInMilliseconds); | |
26 | |
22 class MockTimeTicks : public TimeTicks { | 27 class MockTimeTicks : public TimeTicks { |
23 public: | 28 public: |
24 static DWORD Ticker() { | 29 static DWORD Ticker() { |
25 return static_cast<int>(InterlockedIncrement(&ticker_)); | 30 return static_cast<int>(InterlockedIncrement(&ticker_)); |
26 } | 31 } |
27 | 32 |
28 static void InstallTicker() { | 33 static void InstallTicker() { |
29 old_tick_function_ = SetMockTickFunction(&Ticker); | 34 old_tick_function_ = SetMockTickFunction(&Ticker); |
30 ticker_ = -5; | 35 ticker_ = -5; |
31 } | 36 } |
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283 const double converted_microseconds_since_origin = | 288 const double converted_microseconds_since_origin = |
284 static_cast<double>((converted_value - TimeTicks()).InMicroseconds()); | 289 static_cast<double>((converted_value - TimeTicks()).InMicroseconds()); |
285 EXPECT_NEAR(expected_microseconds_since_origin, | 290 EXPECT_NEAR(expected_microseconds_since_origin, |
286 converted_microseconds_since_origin, | 291 converted_microseconds_since_origin, |
287 1.0) | 292 1.0) |
288 << "ticks=" << ticks << ", to be converted via logic path: " | 293 << "ticks=" << ticks << ", to be converted via logic path: " |
289 << (ticks < Time::kQPCOverflowThreshold ? "FAST" : "SAFE"); | 294 << (ticks < Time::kQPCOverflowThreshold ? "FAST" : "SAFE"); |
290 } | 295 } |
291 } | 296 } |
292 | 297 |
298 TEST(TimeDelta, ConstexprInitialization) { | |
299 // Make sure that TimeDelta works around crbug.com/635974 | |
300 EXPECT_EQ(kExpectedDeltaInMilliseconds, kConstexprTimeDelta.InMilliseconds()); | |
Jeffrey Yasskin
2016/08/12 23:07:44
You're testing a bug in constexpr variables, so yo
| |
301 } | |
302 | |
293 } // namespace base | 303 } // namespace base |
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