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Unified Diff: src/base/platform/condition-variable-unittest.cc

Issue 615393002: Move unit tests to test/unittests. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: REBASE Created 6 years, 3 months ago
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Index: src/base/platform/condition-variable-unittest.cc
diff --git a/src/base/platform/condition-variable-unittest.cc b/src/base/platform/condition-variable-unittest.cc
deleted file mode 100644
index fe0ad2ade84834a44899ab14a93207b88f9a8e21..0000000000000000000000000000000000000000
--- a/src/base/platform/condition-variable-unittest.cc
+++ /dev/null
@@ -1,301 +0,0 @@
-// Copyright 2014 the V8 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.
-
-#include "src/base/platform/condition-variable.h"
-
-#include "src/base/platform/platform.h"
-#include "src/base/platform/time.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace v8 {
-namespace base {
-
-TEST(ConditionVariable, WaitForAfterNofityOnSameThread) {
- for (int n = 0; n < 10; ++n) {
- Mutex mutex;
- ConditionVariable cv;
-
- LockGuard<Mutex> lock_guard(&mutex);
-
- cv.NotifyOne();
- EXPECT_FALSE(cv.WaitFor(&mutex, TimeDelta::FromMicroseconds(n)));
-
- cv.NotifyAll();
- EXPECT_FALSE(cv.WaitFor(&mutex, TimeDelta::FromMicroseconds(n)));
- }
-}
-
-
-namespace {
-
-class ThreadWithMutexAndConditionVariable FINAL : public Thread {
- public:
- ThreadWithMutexAndConditionVariable()
- : Thread(Options("ThreadWithMutexAndConditionVariable")),
- running_(false),
- finished_(false) {}
- virtual ~ThreadWithMutexAndConditionVariable() {}
-
- virtual void Run() OVERRIDE {
- LockGuard<Mutex> lock_guard(&mutex_);
- running_ = true;
- cv_.NotifyOne();
- while (running_) {
- cv_.Wait(&mutex_);
- }
- finished_ = true;
- cv_.NotifyAll();
- }
-
- bool running_;
- bool finished_;
- ConditionVariable cv_;
- Mutex mutex_;
-};
-
-} // namespace
-
-
-TEST(ConditionVariable, MultipleThreadsWithSeparateConditionVariables) {
- static const int kThreadCount = 128;
- ThreadWithMutexAndConditionVariable threads[kThreadCount];
-
- for (int n = 0; n < kThreadCount; ++n) {
- LockGuard<Mutex> lock_guard(&threads[n].mutex_);
- EXPECT_FALSE(threads[n].running_);
- EXPECT_FALSE(threads[n].finished_);
- threads[n].Start();
- // Wait for nth thread to start.
- while (!threads[n].running_) {
- threads[n].cv_.Wait(&threads[n].mutex_);
- }
- }
-
- for (int n = kThreadCount - 1; n >= 0; --n) {
- LockGuard<Mutex> lock_guard(&threads[n].mutex_);
- EXPECT_TRUE(threads[n].running_);
- EXPECT_FALSE(threads[n].finished_);
- }
-
- for (int n = 0; n < kThreadCount; ++n) {
- LockGuard<Mutex> lock_guard(&threads[n].mutex_);
- EXPECT_TRUE(threads[n].running_);
- EXPECT_FALSE(threads[n].finished_);
- // Tell the nth thread to quit.
- threads[n].running_ = false;
- threads[n].cv_.NotifyOne();
- }
-
- for (int n = kThreadCount - 1; n >= 0; --n) {
- // Wait for nth thread to quit.
- LockGuard<Mutex> lock_guard(&threads[n].mutex_);
- while (!threads[n].finished_) {
- threads[n].cv_.Wait(&threads[n].mutex_);
- }
- EXPECT_FALSE(threads[n].running_);
- EXPECT_TRUE(threads[n].finished_);
- }
-
- for (int n = 0; n < kThreadCount; ++n) {
- threads[n].Join();
- LockGuard<Mutex> lock_guard(&threads[n].mutex_);
- EXPECT_FALSE(threads[n].running_);
- EXPECT_TRUE(threads[n].finished_);
- }
-}
-
-
-namespace {
-
-class ThreadWithSharedMutexAndConditionVariable FINAL : public Thread {
- public:
- ThreadWithSharedMutexAndConditionVariable()
- : Thread(Options("ThreadWithSharedMutexAndConditionVariable")),
- running_(false),
- finished_(false),
- cv_(NULL),
- mutex_(NULL) {}
- virtual ~ThreadWithSharedMutexAndConditionVariable() {}
-
- virtual void Run() OVERRIDE {
- LockGuard<Mutex> lock_guard(mutex_);
- running_ = true;
- cv_->NotifyAll();
- while (running_) {
- cv_->Wait(mutex_);
- }
- finished_ = true;
- cv_->NotifyAll();
- }
-
- bool running_;
- bool finished_;
- ConditionVariable* cv_;
- Mutex* mutex_;
-};
-
-} // namespace
-
-
-TEST(ConditionVariable, MultipleThreadsWithSharedSeparateConditionVariables) {
- static const int kThreadCount = 128;
- ThreadWithSharedMutexAndConditionVariable threads[kThreadCount];
- ConditionVariable cv;
- Mutex mutex;
-
- for (int n = 0; n < kThreadCount; ++n) {
- threads[n].mutex_ = &mutex;
- threads[n].cv_ = &cv;
- }
-
- // Start all threads.
- {
- LockGuard<Mutex> lock_guard(&mutex);
- for (int n = 0; n < kThreadCount; ++n) {
- EXPECT_FALSE(threads[n].running_);
- EXPECT_FALSE(threads[n].finished_);
- threads[n].Start();
- }
- }
-
- // Wait for all threads to start.
- {
- LockGuard<Mutex> lock_guard(&mutex);
- for (int n = kThreadCount - 1; n >= 0; --n) {
- while (!threads[n].running_) {
- cv.Wait(&mutex);
- }
- }
- }
-
- // Make sure that all threads are running.
- {
- LockGuard<Mutex> lock_guard(&mutex);
- for (int n = 0; n < kThreadCount; ++n) {
- EXPECT_TRUE(threads[n].running_);
- EXPECT_FALSE(threads[n].finished_);
- }
- }
-
- // Tell all threads to quit.
- {
- LockGuard<Mutex> lock_guard(&mutex);
- for (int n = kThreadCount - 1; n >= 0; --n) {
- EXPECT_TRUE(threads[n].running_);
- EXPECT_FALSE(threads[n].finished_);
- // Tell the nth thread to quit.
- threads[n].running_ = false;
- }
- cv.NotifyAll();
- }
-
- // Wait for all threads to quit.
- {
- LockGuard<Mutex> lock_guard(&mutex);
- for (int n = 0; n < kThreadCount; ++n) {
- while (!threads[n].finished_) {
- cv.Wait(&mutex);
- }
- }
- }
-
- // Make sure all threads are finished.
- {
- LockGuard<Mutex> lock_guard(&mutex);
- for (int n = kThreadCount - 1; n >= 0; --n) {
- EXPECT_FALSE(threads[n].running_);
- EXPECT_TRUE(threads[n].finished_);
- }
- }
-
- // Join all threads.
- for (int n = 0; n < kThreadCount; ++n) {
- threads[n].Join();
- }
-}
-
-
-namespace {
-
-class LoopIncrementThread FINAL : public Thread {
- public:
- LoopIncrementThread(int rem, int* counter, int limit, int thread_count,
- ConditionVariable* cv, Mutex* mutex)
- : Thread(Options("LoopIncrementThread")),
- rem_(rem),
- counter_(counter),
- limit_(limit),
- thread_count_(thread_count),
- cv_(cv),
- mutex_(mutex) {
- EXPECT_LT(rem, thread_count);
- EXPECT_EQ(0, limit % thread_count);
- }
-
- virtual void Run() OVERRIDE {
- int last_count = -1;
- while (true) {
- LockGuard<Mutex> lock_guard(mutex_);
- int count = *counter_;
- while (count % thread_count_ != rem_ && count < limit_) {
- cv_->Wait(mutex_);
- count = *counter_;
- }
- if (count >= limit_) break;
- EXPECT_EQ(*counter_, count);
- if (last_count != -1) {
- EXPECT_EQ(last_count + (thread_count_ - 1), count);
- }
- count++;
- *counter_ = count;
- last_count = count;
- cv_->NotifyAll();
- }
- }
-
- private:
- const int rem_;
- int* counter_;
- const int limit_;
- const int thread_count_;
- ConditionVariable* cv_;
- Mutex* mutex_;
-};
-
-} // namespace
-
-
-TEST(ConditionVariable, LoopIncrement) {
- static const int kMaxThreadCount = 16;
- Mutex mutex;
- ConditionVariable cv;
- for (int thread_count = 1; thread_count < kMaxThreadCount; ++thread_count) {
- int limit = thread_count * 10;
- int counter = 0;
-
- // Setup the threads.
- Thread** threads = new Thread* [thread_count];
- for (int n = 0; n < thread_count; ++n) {
- threads[n] = new LoopIncrementThread(n, &counter, limit, thread_count,
- &cv, &mutex);
- }
-
- // Start all threads.
- for (int n = thread_count - 1; n >= 0; --n) {
- threads[n]->Start();
- }
-
- // Join and cleanup all threads.
- for (int n = 0; n < thread_count; ++n) {
- threads[n]->Join();
- delete threads[n];
- }
- delete[] threads;
-
- EXPECT_EQ(limit, counter);
- }
-}
-
-} // namespace base
-} // namespace v8
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