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nearby/internal/platform/implementation/linux/condition_variable_test.cc
T
Timothy Hutchins bbfc2991c5 Started implementing Linux specific platform
This is the start of the implementing for the Linux platform.

I aim to make this as similar to the Windows platform as possible,
although due to the fundamental difference in the two OS's, there will
be things that need to be different.
As such, I will be using the Windows platform files as a base, and
reimplementing the functions with Linux equivalents.

I am sure this will have bugs, which by my best attempt will be fixed
when found.
2023-05-19 19:19:15 -05:00

103 lines
2.9 KiB
C++

// Copyright 2021 Google LLC
//
// 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
//
// https://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 "internal/platform/implementation/linux/condition_variable.h"
#include <future> // NOLINT
#include "absl/time/clock.h"
#include "internal/platform/exception.h"
#include "internal/platform/implementation/linux/mutex.h"
#include "gtest/gtest.h"
class ConditionVariableTests : public testing::Test {
public:
class ConditionVariableTest {
public:
ConditionVariableTest() {}
std::future<bool> WaitForEvent(bool timedWait, // NOLINT
const absl::Duration* timeout) {
return std::async(
std::launch::async,
[this, timedWait, timeout]() mutable -> bool {
if (timedWait == true) {
auto result = this->condition_variable_actual_.Wait(*timeout);
if (result.value == nearby::Exception::kSuccess) {
return true;
} else {
return false;
}
} else {
this->condition_variable_actual_.Wait();
}
return true;
});
}
void PostEvent() {
absl::MutexLock(&mutex_actual_.GetMutex());
condition_variable_actual_.Notify();
}
private:
nearby::linux::Mutex mutex_actual_ =
nearby::linux::Mutex(nearby::linux::Mutex::Mode::kRegular);
nearby::linux::Mutex& mutex_ = mutex_actual_;
nearby::linux::ConditionVariable condition_variable_actual_ =
nearby::linux::ConditionVariable(&mutex_);
nearby::linux::ConditionVariable& condition_variable_ =
condition_variable_actual_;
};
};
TEST_F(ConditionVariableTests, SuccessfulCreation) {
// Arrange
ConditionVariableTest conditionVariableTest;
auto result = conditionVariableTest.WaitForEvent(false, nullptr);
sleep(1);
// Act
conditionVariableTest.PostEvent();
// Assert
ASSERT_TRUE(result.get());
}
TEST_F(ConditionVariableTests, TimedCreation) {
// Arrange
ConditionVariableTest conditionVariableTest;
const absl::Duration duration = absl::Milliseconds(100);
// Act
auto result = conditionVariableTest.WaitForEvent(true, &duration);
// Assert
ASSERT_FALSE(result.get()); // Timed out
// Act
result = conditionVariableTest.WaitForEvent(true, &duration);
sleep(1);
conditionVariableTest.PostEvent();
// Assert
ASSERT_TRUE(result.get()); // Didn't timeout
}