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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/libwebrtc/rtc_base/time_utils_unittest.cc | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/rtc_base/time_utils_unittest.cc')
-rw-r--r-- | third_party/libwebrtc/rtc_base/time_utils_unittest.cc | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_base/time_utils_unittest.cc b/third_party/libwebrtc/rtc_base/time_utils_unittest.cc new file mode 100644 index 0000000000..09fb816636 --- /dev/null +++ b/third_party/libwebrtc/rtc_base/time_utils_unittest.cc @@ -0,0 +1,241 @@ +/* + * Copyright 2004 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/time_utils.h" + +#include <memory> + +#include "api/units/time_delta.h" +#include "rtc_base/event.h" +#include "rtc_base/fake_clock.h" +#include "rtc_base/helpers.h" +#include "rtc_base/thread.h" +#include "test/gtest.h" + +namespace rtc { +using ::webrtc::TimeDelta; + +TEST(TimeTest, TimeInMs) { + int64_t ts_earlier = TimeMillis(); + Thread::SleepMs(100); + int64_t ts_now = TimeMillis(); + // Allow for the thread to wakeup ~20ms early. + EXPECT_GE(ts_now, ts_earlier + 80); + // Make sure the Time is not returning in smaller unit like microseconds. + EXPECT_LT(ts_now, ts_earlier + 1000); +} + +TEST(TimeTest, Intervals) { + int64_t ts_earlier = TimeMillis(); + int64_t ts_later = TimeAfter(500); + + // We can't depend on ts_later and ts_earlier to be exactly 500 apart + // since time elapses between the calls to TimeMillis() and TimeAfter(500) + EXPECT_LE(500, TimeDiff(ts_later, ts_earlier)); + EXPECT_GE(-500, TimeDiff(ts_earlier, ts_later)); + + // Time has elapsed since ts_earlier + EXPECT_GE(TimeSince(ts_earlier), 0); + + // ts_earlier is earlier than now, so TimeUntil ts_earlier is -ve + EXPECT_LE(TimeUntil(ts_earlier), 0); + + // ts_later likely hasn't happened yet, so TimeSince could be -ve + // but within 500 + EXPECT_GE(TimeSince(ts_later), -500); + + // TimeUntil ts_later is at most 500 + EXPECT_LE(TimeUntil(ts_later), 500); +} + +TEST(TimeTest, TestTimeDiff64) { + int64_t ts_diff = 100; + int64_t ts_earlier = rtc::TimeMillis(); + int64_t ts_later = ts_earlier + ts_diff; + EXPECT_EQ(ts_diff, rtc::TimeDiff(ts_later, ts_earlier)); + EXPECT_EQ(-ts_diff, rtc::TimeDiff(ts_earlier, ts_later)); +} + +class TmToSeconds : public ::testing::Test { + public: + TmToSeconds() { + // Set use of the test RNG to get deterministic expiration timestamp. + rtc::SetRandomTestMode(true); + } + ~TmToSeconds() override { + // Put it back for the next test. + rtc::SetRandomTestMode(false); + } + + void TestTmToSeconds(int times) { + static char mdays[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; + for (int i = 0; i < times; i++) { + // First generate something correct and check that TmToSeconds is happy. + int year = rtc::CreateRandomId() % 400 + 1970; + + bool leap_year = false; + if (year % 4 == 0) + leap_year = true; + if (year % 100 == 0) + leap_year = false; + if (year % 400 == 0) + leap_year = true; + + std::tm tm; + tm.tm_year = year - 1900; // std::tm is year 1900 based. + tm.tm_mon = rtc::CreateRandomId() % 12; + tm.tm_mday = rtc::CreateRandomId() % mdays[tm.tm_mon] + 1; + tm.tm_hour = rtc::CreateRandomId() % 24; + tm.tm_min = rtc::CreateRandomId() % 60; + tm.tm_sec = rtc::CreateRandomId() % 60; + int64_t t = rtc::TmToSeconds(tm); + EXPECT_TRUE(t >= 0); + + // Now damage a random field and check that TmToSeconds is unhappy. + switch (rtc::CreateRandomId() % 11) { + case 0: + tm.tm_year = 1969 - 1900; + break; + case 1: + tm.tm_mon = -1; + break; + case 2: + tm.tm_mon = 12; + break; + case 3: + tm.tm_mday = 0; + break; + case 4: + tm.tm_mday = mdays[tm.tm_mon] + (leap_year && tm.tm_mon == 1) + 1; + break; + case 5: + tm.tm_hour = -1; + break; + case 6: + tm.tm_hour = 24; + break; + case 7: + tm.tm_min = -1; + break; + case 8: + tm.tm_min = 60; + break; + case 9: + tm.tm_sec = -1; + break; + case 10: + tm.tm_sec = 60; + break; + } + EXPECT_EQ(rtc::TmToSeconds(tm), -1); + } + // Check consistency with the system gmtime_r. With time_t, we can only + // portably test dates until 2038, which is achieved by the % 0x80000000. + for (int i = 0; i < times; i++) { + time_t t = rtc::CreateRandomId() % 0x80000000; +#if defined(WEBRTC_WIN) + std::tm* tm = std::gmtime(&t); + EXPECT_TRUE(tm); + EXPECT_TRUE(rtc::TmToSeconds(*tm) == t); +#else + std::tm tm; + EXPECT_TRUE(gmtime_r(&t, &tm)); + EXPECT_TRUE(rtc::TmToSeconds(tm) == t); +#endif + } + } +}; + +TEST_F(TmToSeconds, TestTmToSeconds) { + TestTmToSeconds(100000); +} + +// Test that all the time functions exposed by TimeUtils get time from the +// fake clock when it's set. +TEST(FakeClock, TimeFunctionsUseFakeClock) { + FakeClock clock; + SetClockForTesting(&clock); + + clock.SetTime(webrtc::Timestamp::Micros(987654)); + EXPECT_EQ(987u, Time32()); + EXPECT_EQ(987, TimeMillis()); + EXPECT_EQ(987654, TimeMicros()); + EXPECT_EQ(987654000, TimeNanos()); + EXPECT_EQ(1000u, TimeAfter(13)); + + SetClockForTesting(nullptr); + // After it's unset, we should get a normal time. + EXPECT_NE(987, TimeMillis()); +} + +TEST(FakeClock, InitialTime) { + FakeClock clock; + EXPECT_EQ(0, clock.TimeNanos()); +} + +TEST(FakeClock, SetTime) { + FakeClock clock; + clock.SetTime(webrtc::Timestamp::Micros(123)); + EXPECT_EQ(123000, clock.TimeNanos()); + clock.SetTime(webrtc::Timestamp::Micros(456)); + EXPECT_EQ(456000, clock.TimeNanos()); +} + +TEST(FakeClock, AdvanceTime) { + FakeClock clock; + clock.AdvanceTime(webrtc::TimeDelta::Micros(1u)); + EXPECT_EQ(1000, clock.TimeNanos()); + clock.AdvanceTime(webrtc::TimeDelta::Micros(2222u)); + EXPECT_EQ(2223000, clock.TimeNanos()); + clock.AdvanceTime(webrtc::TimeDelta::Millis(3333u)); + EXPECT_EQ(3335223000, clock.TimeNanos()); + clock.AdvanceTime(webrtc::TimeDelta::Seconds(4444u)); + EXPECT_EQ(4447335223000, clock.TimeNanos()); +} + +// When the clock is advanced, threads that are waiting in a socket select +// should wake up and look at the new time. This allows tests using the +// fake clock to run much faster, if the test is bound by time constraints +// (such as a test for a STUN ping timeout). +TEST(FakeClock, SettingTimeWakesThreads) { + int64_t real_start_time_ms = TimeMillis(); + + ThreadProcessingFakeClock clock; + SetClockForTesting(&clock); + + std::unique_ptr<Thread> worker(Thread::CreateWithSocketServer()); + worker->Start(); + + // Post an event that won't be executed for 10 seconds. + Event message_handler_dispatched; + worker->PostDelayedTask( + [&message_handler_dispatched] { message_handler_dispatched.Set(); }, + TimeDelta::Seconds(60)); + + // Wait for a bit for the worker thread to be started and enter its socket + // select(). Otherwise this test would be trivial since the worker thread + // would process the event as soon as it was started. + Thread::Current()->SleepMs(1000); + + // Advance the fake clock, expecting the worker thread to wake up + // and dispatch the message instantly. + clock.AdvanceTime(webrtc::TimeDelta::Seconds(60u)); + EXPECT_TRUE(message_handler_dispatched.Wait(webrtc::TimeDelta::Zero())); + worker->Stop(); + + SetClockForTesting(nullptr); + + // The message should have been dispatched long before the 60 seconds fully + // elapsed (just a sanity check). + int64_t real_end_time_ms = TimeMillis(); + EXPECT_LT(real_end_time_ms - real_start_time_ms, 10000); +} + +} // namespace rtc |