mirror of
https://github.com/kidfromjupiter/nearby.git
synced 2026-09-15 07:06:11 -04:00
84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "internal/platform/condition_variable.h"
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#include "gmock/gmock.h"
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#include "protobuf-matchers/protocol-buffer-matchers.h"
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#include "gtest/gtest.h"
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#include "absl/time/time.h"
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#include "internal/platform/logging.h"
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#include "internal/platform/mutex.h"
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#include "internal/platform/single_thread_executor.h"
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#include "internal/platform/system_clock.h"
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namespace location {
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namespace nearby {
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namespace {
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TEST(ConditionVariableTest, CanCreate) {
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Mutex mutex;
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ConditionVariable cond{&mutex};
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}
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TEST(ConditionVariableTest, CanWakeupWaiter) {
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Mutex mutex;
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ConditionVariable cond{&mutex};
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bool done = false;
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bool waiting = false;
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NEARBY_LOG(INFO, "At start; done=%d", done);
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{
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SingleThreadExecutor executor;
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executor.Execute([&cond, &mutex, &done, &waiting]() {
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MutexLock lock(&mutex);
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NEARBY_LOG(INFO, "Before cond.Wait(); done=%d", done);
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waiting = true;
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cond.Wait();
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waiting = false;
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done = true;
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NEARBY_LOG(INFO, "After cond.Wait(); done=%d", done);
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});
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while (true) {
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{
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MutexLock lock(&mutex);
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if (waiting) break;
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}
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SystemClock::Sleep(absl::Milliseconds(100));
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}
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{
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MutexLock lock(&mutex);
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cond.Notify();
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EXPECT_FALSE(done);
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}
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}
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NEARBY_LOG(INFO, "After executor shutdown: done=%d", done);
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EXPECT_TRUE(done);
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}
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TEST(ConditionVariableTest, WaitTerminatesOnTimeoutWithoutNotify) {
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Mutex mutex;
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ConditionVariable cond{&mutex};
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MutexLock lock(&mutex);
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const absl::Duration kWaitTime = absl::Milliseconds(100);
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absl::Time start = SystemClock::ElapsedRealtime();
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cond.Wait(kWaitTime);
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absl::Duration duration = SystemClock::ElapsedRealtime() - start;
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EXPECT_GE(duration, kWaitTime);
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}
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} // namespace
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} // namespace nearby
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} // namespace location
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