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Adds fake clock unit test.

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Also removing unused ScopedRealClock.

Bug: webrtc:10365
Change-Id: I3cd95df894cba9bf4ee703d979f476e2c526bf35
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/128860
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Sebastian Jansson <srte@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27425}
This commit is contained in:
Sebastian Jansson
2019-03-22 15:38:16 +01:00
committed by Commit Bot
parent 27d5ad074c
commit 7d6a259baa
3 changed files with 38 additions and 10 deletions
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1
rtc_base/BUILD.gn
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@ -1359,6 +1359,7 @@ if (rtc_include_tests) {
"callback_unittest.cc",
"crc32_unittest.cc",
"data_rate_limiter_unittest.cc",
"fake_clock_unittest.cc",
"helpers_unittest.cc",
"ip_address_unittest.cc",
"memory_usage_unittest.cc",

10
rtc_base/fake_clock.h
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@ -62,16 +62,6 @@ class ScopedFakeClock : public FakeClock {
ClockInterface* prev_clock_;
};
// Helper class to "undo" the fake clock temporarily.
class ScopedRealClock {
public:
ScopedRealClock();
~ScopedRealClock();
private:
ClockInterface* prev_clock_;
};
} // namespace rtc
#endif // RTC_BASE_FAKE_CLOCK_H_

37
rtc_base/fake_clock_unittest.cc Normal file
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@ -0,0 +1,37 @@
/*
* 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 "test/gtest.h"
#include "rtc_base/fake_clock.h"
namespace rtc {
TEST(ScopedFakeClockTest, OverridesGlobalClock) {
const int64_t kFixedTimeUs = 100000;
int64_t real_time_us = rtc::TimeMicros();
EXPECT_NE(real_time_us, 0);
{
ScopedFakeClock scoped;
EXPECT_EQ(rtc::TimeMicros(), 0);
scoped.AdvanceTimeMicros(1000);
EXPECT_EQ(rtc::TimeMicros(), 1000);
scoped.SetTimeMicros(kFixedTimeUs);
EXPECT_EQ(rtc::TimeMicros(), kFixedTimeUs);
scoped.AdvanceTimeMicros(1000);
EXPECT_EQ(rtc::TimeMicros(), kFixedTimeUs + 1000);
}
EXPECT_NE(rtc::TimeMicros(), kFixedTimeUs + 1000);
EXPECT_GE(rtc::TimeMicros(), real_time_us);
}
} // namespace rtc