/*
* Copyright 2019 The WebRTC project authors . All Rights Reserved .
*
* Use of this source code is governed by a BSD - style license
* that can be found in the LICENSE file in the root of the source
* tree . An additional intellectual property rights grant can be found
* in the file PATENTS . All contributing project authors may
* be found in the AUTHORS file in the root of the source tree .
*/
#include "rtc_base/fake_clock.h"
#include <cstdint>
#include "api/units/time_delta.h"
#include "api/units/timestamp.h"
#include "rtc_base/time_utils.h"
#include "test/gtest.h"
namespace webrtc {
TEST(ScopedFakeClockTest, OverridesGlobalClock) {
const int64_t kFixedTimeUs = 100000 ;
int64_t real_time_us = TimeMicros();
EXPECT_NE(real_time_us, 0 );
{
ScopedFakeClock scoped;
EXPECT_EQ(TimeMicros(), 0 );
scoped.AdvanceTime(TimeDelta::Millis(1 ));
EXPECT_EQ(TimeMicros(), 1000 );
scoped.SetTime(Timestamp::Micros(kFixedTimeUs));
EXPECT_EQ(TimeMicros(), kFixedTimeUs);
scoped.AdvanceTime(TimeDelta::Millis(1 ));
EXPECT_EQ(TimeMicros(), kFixedTimeUs + 1000 );
}
EXPECT_NE(TimeMicros(), kFixedTimeUs + 1000 );
EXPECT_GE(TimeMicros(), real_time_us);
}
} // namespace webrtc
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