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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <cmath>
#include "gtest/gtest.h"
#include "libwebrtcglue/SystemTime.h"
using namespace mozilla;
using dom::PerformanceService;
using dom::RTCStatsTimestamp;
using dom::RTCStatsTimestampMaker;
static constexpr auto kWebrtcTimeOffset = webrtc::Timestamp::Seconds(123456789);
TEST(RTCStatsTimestampMakerRealtimeClock, ConvertTimestampToNtpTime)
{
auto maker = RTCStatsTimestampMaker::Create();
RTCStatsTimestampMakerRealtimeClock clock(maker);
constexpr auto ntpTo1Jan1970Ms = webrtc::kNtpJan1970 * 1000LL;
for (int i = 1000; i < 20000; i += 93) {
const auto t = kWebrtcTimeOffset + webrtc::TimeDelta::Micros(i);
const auto ntp = clock.ConvertTimestampToNtpTime(t);
// Because of precision differences, these round to a specific millisecond
// slightly differently.
EXPECT_NEAR(ntp.ToMs() - ntpTo1Jan1970Ms,
RTCStatsTimestamp::FromRealtime(maker, t).To1Jan1970().ms(),
1.0)
<< " for i=" << i;
}
}
TEST(RTCStatsTimestampMaker, ConvertNtpToDomTime)
{
auto maker = RTCStatsTimestampMaker::Create();
RTCStatsTimestampMakerRealtimeClock clock(maker);
for (int i = 1000; i < 20000; i += 93) {
const auto t = kWebrtcTimeOffset + webrtc::TimeDelta::Micros(i);
const auto ntp = clock.ConvertTimestampToNtpTime(t);
const auto dom =
RTCStatsTimestamp::FromNtp(maker, webrtc::Timestamp::Millis(ntp.ToMs()))
.ToDom();
// Because of precision differences, these round to a specific millisecond
// slightly differently.
EXPECT_NEAR(std::lround(dom),
std::lround(RTCStatsTimestamp::FromRealtime(maker, t).ToDom()),
1.0)
<< " for i=" << i;
}
}
TEST(RTCStatsTimestampMaker, ConvertMozTime)
{
auto maker = RTCStatsTimestampMaker::Create();
const auto start = TimeStamp::Now();
RTCStatsTimestampMakerRealtimeClock clock(maker);
for (int i = 1000; i < 20000; i += 93) {
const auto duration = TimeDuration::FromMicroseconds(i);
const auto time = RTCStatsTimestamp::FromMozTime(maker, start + duration);
EXPECT_EQ(duration.ToMicroseconds(),
(time.ToMozTime() - start).ToMicroseconds())
<< " for i=" << i;
}
}
TEST(RTCStatsTimestampMaker, ConvertRealtime)
{
auto maker = RTCStatsTimestampMaker::Create();
const auto start = kWebrtcTimeOffset;
RTCStatsTimestampMakerRealtimeClock clock(maker);
for (int i = 1000; i < 20000; i += 93) {
const auto duration = webrtc::TimeDelta::Micros(i);
const auto time = RTCStatsTimestamp::FromRealtime(maker, start + duration);
// Because of precision differences, these round to a specific Microsecond
// slightly differently.
EXPECT_NEAR(duration.us(), (time.ToRealtime() - start).us(), 1)
<< " for i=" << i;
}
}
TEST(RTCStatsTimestampMaker, Convert1Jan1970)
{
auto maker = RTCStatsTimestampMaker::Create();
const auto start =
kWebrtcTimeOffset +
webrtc::TimeDelta::Millis(PerformanceService::GetOrCreate()->TimeOrigin(
WebrtcSystemTimeBase()));
RTCStatsTimestampMakerRealtimeClock clock(maker);
for (int i = 1000; i < 20000; i += 93) {
const auto duration = webrtc::TimeDelta::Micros(i);
const auto time = RTCStatsTimestamp::From1Jan1970(maker, start + duration);
// Because of precision differences, these round to a specific Microsecond
// slightly differently.
EXPECT_NEAR(duration.us(), (time.To1Jan1970() - start).us(), 1)
<< " for i=" << i;
}
}
TEST(RTCStatsTimestampMaker, ConvertDomRealtime)
{
auto maker = RTCStatsTimestampMaker::Create();
const auto start = kWebrtcTimeOffset;
RTCStatsTimestampMakerRealtimeClock clock(maker);
for (int i = 1000; i < 20000; i += 93) {
const auto duration = webrtc::TimeDelta::Micros(i);
const auto time =
RTCStatsTimestamp::FromDomRealtime(maker, start + duration);
// Because of precision differences, these round to a specific Microsecond
// slightly differently.
EXPECT_NEAR(duration.us(), (time.ToDomRealtime() - start).us(), 1)
<< " for i=" << i;
}
}
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