| // Copyright 2010-2015, Google Inc. |
| // All rights reserved. |
| // |
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| // modification, are permitted provided that the following conditions are |
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| // * Redistributions in binary form must reproduce the above |
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| // in the documentation and/or other materials provided with the |
| // distribution. |
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| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| |
| #include <numeric> |
| |
| #include "testing/base/public/googletest.h" |
| #include "testing/base/public/gunit.h" |
| #include "base/clock_mock.h" |
| #include "base/scoped_ptr.h" |
| #include "base/stopwatch.h" |
| #include "base/util.h" |
| |
| namespace mozc { |
| |
| class StopwatchTest : public testing::Test { |
| protected: |
| void SetUp() { |
| clock_mock_.reset(new ClockMock(0, 0)); |
| // 1GHz (Accuracy = 1ns) |
| clock_mock_->SetFrequency(1000000000uLL); |
| Util::SetClockHandler(clock_mock_.get()); |
| } |
| |
| void TearDown() { |
| Util::SetClockHandler(NULL); |
| } |
| |
| void PutForwardNanoseconds(uint64 nano_sec) { |
| clock_mock_->PutClockForwardByTicks(nano_sec); |
| } |
| |
| scoped_ptr<ClockMock> clock_mock_; |
| }; |
| |
| TEST_F(StopwatchTest, MultipleGetElapsedMillisecondsTest) { |
| const uint64 kWaitNanoseconds = 1000000000uLL; // 1 sec |
| |
| Stopwatch stopwatch = Stopwatch::StartNew(); |
| PutForwardNanoseconds(kWaitNanoseconds); |
| stopwatch.Stop(); |
| |
| // GetElapsedX should return the same value if the stopwatch is not running. |
| EXPECT_FALSE(stopwatch.IsRunning()); |
| const uint64 elapsed_time1 = stopwatch.GetElapsedMilliseconds(); |
| PutForwardNanoseconds(kWaitNanoseconds); |
| const uint64 elapsed_time2 = stopwatch.GetElapsedMilliseconds(); |
| PutForwardNanoseconds(kWaitNanoseconds); |
| const uint64 elapsed_time3 = stopwatch.GetElapsedMilliseconds(); |
| EXPECT_EQ(elapsed_time1, elapsed_time2); |
| EXPECT_EQ(elapsed_time1, elapsed_time3); |
| } |
| |
| TEST_F(StopwatchTest, GetElapsedXSecondsTest) { |
| const uint64 kWaitNanoseconds = 1000000000uLL; // 1 sec |
| |
| Stopwatch stopwatch = Stopwatch::StartNew(); |
| PutForwardNanoseconds(kWaitNanoseconds); |
| stopwatch.Stop(); |
| |
| EXPECT_EQ(kWaitNanoseconds, stopwatch.GetElapsedNanoseconds()); |
| EXPECT_EQ(kWaitNanoseconds / 1000, stopwatch.GetElapsedMicroseconds()); |
| EXPECT_EQ(kWaitNanoseconds / 1000000, stopwatch.GetElapsedMilliseconds()); |
| } |
| |
| TEST_F(StopwatchTest, RestartTest) { |
| const uint64 kWaitNanoseconds1 = 1000000000uLL; // 1 sec |
| const uint64 kWaitNanoseconds2 = 2000000000uLL; // 2 sec |
| const uint64 kWaitNanoseconds3 = 4000000000uLL; // 4 sec |
| |
| Stopwatch stopwatch = Stopwatch::StartNew(); |
| PutForwardNanoseconds(kWaitNanoseconds1); |
| stopwatch.Stop(); |
| PutForwardNanoseconds(kWaitNanoseconds2); |
| stopwatch.Start(); |
| PutForwardNanoseconds(kWaitNanoseconds3); |
| stopwatch.Stop(); |
| |
| const uint64 kExpected = kWaitNanoseconds1 + kWaitNanoseconds3; |
| EXPECT_EQ(kExpected, stopwatch.GetElapsedNanoseconds()); |
| EXPECT_EQ(kExpected / 1000, stopwatch.GetElapsedMicroseconds()); |
| EXPECT_EQ(kExpected / 1000000, stopwatch.GetElapsedMilliseconds()); |
| } |
| |
| TEST_F(StopwatchTest, ResetTest) { |
| const uint64 kWaitNanoseconds1 = 1000000000uLL; // 1 sec |
| const uint64 kWaitNanoseconds2 = 2000000000uLL; // 2 sec |
| Stopwatch stopwatch = Stopwatch::StartNew(); |
| PutForwardNanoseconds(kWaitNanoseconds1); |
| stopwatch.Stop(); |
| stopwatch.Reset(); |
| |
| stopwatch.Start(); |
| PutForwardNanoseconds(kWaitNanoseconds2); |
| stopwatch.Stop(); |
| |
| EXPECT_EQ(kWaitNanoseconds2, stopwatch.GetElapsedNanoseconds()); |
| EXPECT_EQ(kWaitNanoseconds2 / 1000, stopwatch.GetElapsedMicroseconds()); |
| EXPECT_EQ(kWaitNanoseconds2 / 1000000, stopwatch.GetElapsedMilliseconds()); |
| } |
| |
| } // namespace mozc |