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05666b4db7
danilchap@webrtc.org suggested to add a converter for NtpTime <-> UTC Timestamp for in https://webrtc-review.googlesource.com/c/src/+/365641. This CL add a NtpTime -> UTC Timestamp in Clock, and change code to start to use the new function. Bug: None Change-Id: If4af6cb8e31c1731692edfb8358e67b7a43226a0 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/366001 Commit-Queue: Olov Brändström <brandstrom@google.com> Reviewed-by: Henrik Boström <hbos@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Henrik Andreassson <henrika@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43293}
44 lines
1.6 KiB
C++
44 lines
1.6 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "system_wrappers/include/clock.h"
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#include "api/units/time_delta.h"
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#include "test/gtest.h"
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namespace webrtc {
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TEST(ClockTest, NtpTime) {
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Clock* clock = Clock::GetRealTimeClock();
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// To ensure the test runs correctly even on a heavily loaded system, do not
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// compare the seconds/fractions and millisecond values directly. Instead,
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// we check that the NTP time is between the "milliseconds" values returned
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// right before and right after the call.
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// The comparison includes 1 ms of margin to account for the rounding error in
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// the conversion.
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int64_t milliseconds_lower_bound = clock->CurrentNtpInMilliseconds();
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NtpTime ntp_time = clock->CurrentNtpTime();
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int64_t milliseconds_upper_bound = clock->CurrentNtpInMilliseconds();
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EXPECT_GT(milliseconds_lower_bound / 1000, kNtpJan1970);
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EXPECT_LE(milliseconds_lower_bound - 1, ntp_time.ToMs());
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EXPECT_GE(milliseconds_upper_bound + 1, ntp_time.ToMs());
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}
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TEST(ClockTest, NtpToUtc) {
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Clock* clock = Clock::GetRealTimeClock();
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NtpTime ntp = clock->CurrentNtpTime();
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Timestamp a = Clock::NtpToUtc(ntp);
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Timestamp b = Timestamp::Millis(ntp.ToMs() - int64_t{kNtpJan1970} * 1000);
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TimeDelta d = a - b;
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EXPECT_LT(d.Abs(), TimeDelta::Millis(1));
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}
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} // namespace webrtc
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