The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#) https://grpc.io/
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// Copyright 2022 The gRPC Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/core/lib/gprpp/notification.h"
#include <thread>
#include "gtest/gtest.h"
namespace grpc_core {
namespace testing {
namespace {
TEST(Notification, Works) {
Notification n;
EXPECT_FALSE(n.HasBeenNotified());
n.Notify();
EXPECT_TRUE(n.HasBeenNotified());
n.WaitForNotification();
EXPECT_TRUE(n.HasBeenNotified());
}
TEST(Notification, Waits) {
Notification n;
auto start = absl::Now();
std::thread t([&n] {
absl::SleepFor(absl::Seconds(5));
n.Notify();
});
n.WaitForNotification();
auto end = absl::Now();
EXPECT_GE(end - start, absl::Seconds(5));
t.join();
}
TEST(Notification, WaitsWithTimeout) {
Notification n;
auto start = absl::Now();
std::thread t([&n] {
absl::SleepFor(absl::Seconds(5));
n.Notify();
});
EXPECT_TRUE(n.WaitForNotificationWithTimeout(absl::Seconds(10)));
auto end = absl::Now();
EXPECT_GE(end - start, absl::Seconds(5));
EXPECT_LE(end - start, absl::Seconds(10));
t.join();
}
TEST(Notification, WaitWithTimeoutCanFinishEarly) {
Notification n;
auto start = absl::Now();
std::thread t([&n] {
absl::SleepFor(absl::Seconds(5));
n.Notify();
});
EXPECT_FALSE(n.WaitForNotificationWithTimeout(absl::Seconds(1)));
auto end = absl::Now();
EXPECT_GE(end - start, absl::Seconds(1));
EXPECT_LE(end - start, absl::Seconds(5));
n.WaitForNotification();
end = absl::Now();
EXPECT_GE(end - start, absl::Seconds(5));
t.join();
}
} // namespace
} // namespace testing
} // namespace grpc_core
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}