You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
35 lines
1.3 KiB
35 lines
1.3 KiB
/*
|
|
* Copyright (c) 2012 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 "system_wrappers/include/clock.h"
|
|
|
|
#include "test/gtest.h"
|
|
|
|
namespace webrtc {
|
|
|
|
TEST(ClockTest, NtpTime) {
|
|
Clock* clock = Clock::GetRealTimeClock();
|
|
|
|
// To ensure the test runs correctly even on a heavily loaded system, do not
|
|
// compare the seconds/fractions and millisecond values directly. Instead,
|
|
// we check that the NTP time is between the "milliseconds" values returned
|
|
// right before and right after the call.
|
|
// The comparison includes 1 ms of margin to account for the rounding error in
|
|
// the conversion.
|
|
int64_t milliseconds_lower_bound = clock->CurrentNtpInMilliseconds();
|
|
NtpTime ntp_time = clock->CurrentNtpTime();
|
|
int64_t milliseconds_upper_bound = clock->CurrentNtpInMilliseconds();
|
|
EXPECT_GT(milliseconds_lower_bound / 1000, kNtpJan1970);
|
|
EXPECT_LE(milliseconds_lower_bound - 1, ntp_time.ToMs());
|
|
EXPECT_GE(milliseconds_upper_bound + 1, ntp_time.ToMs());
|
|
}
|
|
|
|
} // namespace webrtc
|