mirror of
https://github.com/kidfromjupiter/nearby.git
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71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
// Copyright 2022 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 <vector>
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#include "absl/synchronization/blocking_counter.h"
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#include "absl/synchronization/notification.h"
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#include "absl/time/clock.h"
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#include "absl/time/time.h"
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#include "gtest/gtest.h"
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#include "internal/platform/implementation/linux/thread_pool.h"
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namespace nearby {
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namespace linux {
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namespace {
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constexpr int kTaskCount = 10;
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TEST(ThreadPool, TasksInSingleThreadRunInSequence) {
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absl::BlockingCounter blocking_counter(kTaskCount);
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auto pool = ThreadPool::Create(1);
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std::vector<int> completed_tasks;
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std::vector<int> expected_tasks;
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for (int i = 0; i < kTaskCount; ++i) {
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expected_tasks.push_back(i);
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pool->Run([&, i]() {
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absl::SleepFor(absl::Milliseconds(200));
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completed_tasks.push_back(i);
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blocking_counter.DecrementCount();
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});
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}
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blocking_counter.Wait();
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EXPECT_EQ(completed_tasks, expected_tasks);
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pool->ShutDown();
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}
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TEST(ThreadPool, TasksInMultipleThreadsRunInParallel) {
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absl::BlockingCounter blocking_counter(kTaskCount);
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absl::Time start_time = absl::Now();
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auto pool = ThreadPool::Create(2);
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for (int i = 0; i < kTaskCount; ++i) {
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pool->Run([&]() {
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absl::SleepFor(absl::Milliseconds(200));
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blocking_counter.DecrementCount();
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});
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}
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blocking_counter.Wait();
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EXPECT_TRUE(absl::Now() - start_time < absl::Milliseconds(1500));
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pool->ShutDown();
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}
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} // namespace
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} // namespace linux
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} // namespace nearby
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