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/*
* Copyright 2024 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/wait_until.h"
#include <memory>
#include "api/rtc_error.h"
#include "api/test/create_time_controller.h"
#include "api/test/rtc_error_matchers.h"
#include "api/test/time_controller.h"
#include "api/units/time_delta.h"
#include "api/units/timestamp.h"
#include "rtc_base/fake_clock.h"
#include "rtc_base/thread.h"
#include "system_wrappers/include/clock.h"
#include "test/gmock.h"
#include "test/gtest.h"
namespace webrtc {
namespace {
using testing::_;
using testing::AllOf;
using testing::Eq;
using testing::Ge;
using testing::Gt;
using testing::Lt;
using testing::MatchesRegex;
TEST(WaitUntilTest, ReturnsWhenConditionIsMet) {
AutoThread thread;
int counter = 0;
RTCErrorOr<int> result = WaitUntil([&] { return ++counter; }, Eq(3));
EXPECT_THAT(result, IsRtcOkAndHolds(3));
}
TEST(WaitUntilTest, ReturnsErrorWhenTimeoutIsReached) {
AutoThread thread;
int counter = 0;
RTCErrorOr<int> result =
WaitUntil([&] { return --counter; }, Eq(1),
{.timeout = TimeDelta::Millis(10), .result_name = "counter"});
// Only returns the last error. Note we only are checking that the error
// message ends with a negative number rather than a specific number to avoid
// flakiness.
EXPECT_THAT(
result,
IsRtcErrorOrWithMessage(
_, MatchesRegex(
"Value of: counter\nExpected: is equal to 1\nActual: -\\d+")));
}
TEST(WaitUntilTest, ErrorContainsMatcherExplanation) {
AutoThread thread;
int counter = 0;
auto matcher = AllOf(Gt(0), Lt(10));
RTCErrorOr<int> result =
WaitUntil([&] { return --counter; }, matcher,
{.timeout = TimeDelta::Millis(10), .result_name = "counter"});
// Only returns the last error. Note we only are checking that the error
// message ends with a negative number rather than a specific number to avoid
// flakiness.
EXPECT_THAT(
result,
IsRtcErrorOrWithMessage(
_, MatchesRegex("Value of: counter\nExpected: \\(is > 0\\) and "
"\\(is < 10\\)\nActual: -\\d+, which doesn't match "
"\\(is > 0\\)")));
}
TEST(WaitUntilTest, ReturnsWhenConditionIsMetWithSimulatedClock) {
SimulatedClock fake_clock(Timestamp::Millis(1337));
int counter = 0;
RTCErrorOr<int> result =
WaitUntil([&] { return ++counter; }, Eq(3), {.clock = &fake_clock});
EXPECT_THAT(result, IsRtcOkAndHolds(3));
// The fake clock should have advanced at least 2ms.
EXPECT_THAT(fake_clock.CurrentTime(), Ge(Timestamp::Millis(1339)));
}
TEST(WaitUntilTest, ReturnsWhenConditionIsMetWithThreadProcessingFakeClock) {
ScopedFakeClock fake_clock;
int counter = 0;
RTCErrorOr<int> result =
WaitUntil([&] { return ++counter; }, Eq(3), {.clock = &fake_clock});
EXPECT_THAT(result, IsRtcOkAndHolds(3));
// The fake clock should have advanced at least 2ms.
EXPECT_THAT(Timestamp::Micros(fake_clock.TimeNanos() * 1000),
Ge(Timestamp::Millis(1339)));
}
TEST(WaitUntilTest, ReturnsWhenConditionIsMetWithFakeClock) {
FakeClock fake_clock;
int counter = 0;
RTCErrorOr<int> result =
WaitUntil([&] { return ++counter; }, Eq(3), {.clock = &fake_clock});
EXPECT_THAT(result, IsRtcOkAndHolds(3));
// The fake clock should have advanced at least 2ms.
EXPECT_THAT(Timestamp::Micros(fake_clock.TimeNanos() * 1000),
Ge(Timestamp::Millis(1339)));
}
TEST(WaitUntilTest, ReturnsWhenConditionIsMetWithSimulatedTimeController) {
std::unique_ptr<TimeController> time_controller =
CreateSimulatedTimeController();
int counter = 0;
RTCErrorOr<int> result = WaitUntil([&] { return ++counter; }, Eq(3),
{.clock = time_controller.get()});
EXPECT_THAT(result, IsRtcOkAndHolds(3));
// The fake clock should have advanced at least 2ms.
EXPECT_THAT(time_controller->GetClock()->CurrentTime(),
Ge(Timestamp::Millis(1339)));
}
} // namespace
} // namespace webrtc
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