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Unified Diff: test/cctest/test-condition-variable.cc

Issue 448603002: Refactor unit tests for the base library to use GTest. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Reduce LoopIncrement test time. Created 6 years, 4 months ago
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Index: test/cctest/test-condition-variable.cc
diff --git a/test/cctest/test-condition-variable.cc b/test/cctest/test-condition-variable.cc
deleted file mode 100644
index bb5b5ff5aa4f94782252b48372f024184f8cd9d0..0000000000000000000000000000000000000000
--- a/test/cctest/test-condition-variable.cc
+++ /dev/null
@@ -1,307 +0,0 @@
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following
-// disclaimer in the documentation and/or other materials provided
-// with the distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#include "src/v8.h"
-
-#include "src/base/platform/condition-variable.h"
-#include "src/base/platform/time.h"
-#include "test/cctest/cctest.h"
-
-using namespace ::v8::internal;
-
-
-TEST(WaitForAfterNofityOnSameThread) {
- for (int n = 0; n < 10; ++n) {
- v8::base::Mutex mutex;
- v8::base::ConditionVariable cv;
-
- v8::base::LockGuard<v8::base::Mutex> lock_guard(&mutex);
-
- cv.NotifyOne();
- CHECK_EQ(false,
- cv.WaitFor(&mutex, v8::base::TimeDelta::FromMicroseconds(n)));
-
- cv.NotifyAll();
- CHECK_EQ(false,
- cv.WaitFor(&mutex, v8::base::TimeDelta::FromMicroseconds(n)));
- }
-}
-
-
-class ThreadWithMutexAndConditionVariable V8_FINAL : public v8::base::Thread {
- public:
- ThreadWithMutexAndConditionVariable()
- : Thread("ThreadWithMutexAndConditionVariable"),
- running_(false), finished_(false) {}
- virtual ~ThreadWithMutexAndConditionVariable() {}
-
- virtual void Run() V8_OVERRIDE {
- v8::base::LockGuard<v8::base::Mutex> lock_guard(&mutex_);
- running_ = true;
- cv_.NotifyOne();
- while (running_) {
- cv_.Wait(&mutex_);
- }
- finished_ = true;
- cv_.NotifyAll();
- }
-
- bool running_;
- bool finished_;
- v8::base::ConditionVariable cv_;
- v8::base::Mutex mutex_;
-};
-
-
-TEST(MultipleThreadsWithSeparateConditionVariables) {
- static const int kThreadCount = 128;
- ThreadWithMutexAndConditionVariable threads[kThreadCount];
-
- for (int n = 0; n < kThreadCount; ++n) {
- v8::base::LockGuard<v8::base::Mutex> lock_guard(&threads[n].mutex_);
- CHECK(!threads[n].running_);
- CHECK(!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) {
- v8::base::LockGuard<v8::base::Mutex> lock_guard(&threads[n].mutex_);
- CHECK(threads[n].running_);
- CHECK(!threads[n].finished_);
- }
-
- for (int n = 0; n < kThreadCount; ++n) {
- v8::base::LockGuard<v8::base::Mutex> lock_guard(&threads[n].mutex_);
- CHECK(threads[n].running_);
- CHECK(!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.
- v8::base::LockGuard<v8::base::Mutex> lock_guard(&threads[n].mutex_);
- while (!threads[n].finished_) {
- threads[n].cv_.Wait(&threads[n].mutex_);
- }
- CHECK(!threads[n].running_);
- CHECK(threads[n].finished_);
- }
-
- for (int n = 0; n < kThreadCount; ++n) {
- threads[n].Join();
- v8::base::LockGuard<v8::base::Mutex> lock_guard(&threads[n].mutex_);
- CHECK(!threads[n].running_);
- CHECK(threads[n].finished_);
- }
-}
-
-
-class ThreadWithSharedMutexAndConditionVariable V8_FINAL
- : public v8::base::Thread {
- public:
- ThreadWithSharedMutexAndConditionVariable()
- : Thread("ThreadWithSharedMutexAndConditionVariable"),
- running_(false), finished_(false), cv_(NULL), mutex_(NULL) {}
- virtual ~ThreadWithSharedMutexAndConditionVariable() {}
-
- virtual void Run() V8_OVERRIDE {
- v8::base::LockGuard<v8::base::Mutex> lock_guard(mutex_);
- running_ = true;
- cv_->NotifyAll();
- while (running_) {
- cv_->Wait(mutex_);
- }
- finished_ = true;
- cv_->NotifyAll();
- }
-
- bool running_;
- bool finished_;
- v8::base::ConditionVariable* cv_;
- v8::base::Mutex* mutex_;
-};
-
-
-TEST(MultipleThreadsWithSharedSeparateConditionVariables) {
- static const int kThreadCount = 128;
- ThreadWithSharedMutexAndConditionVariable threads[kThreadCount];
- v8::base::ConditionVariable cv;
- v8::base::Mutex mutex;
-
- for (int n = 0; n < kThreadCount; ++n) {
- threads[n].mutex_ = &mutex;
- threads[n].cv_ = &cv;
- }
-
- // Start all threads.
- {
- v8::base::LockGuard<v8::base::Mutex> lock_guard(&mutex);
- for (int n = 0; n < kThreadCount; ++n) {
- CHECK(!threads[n].running_);
- CHECK(!threads[n].finished_);
- threads[n].Start();
- }
- }
-
- // Wait for all threads to start.
- {
- v8::base::LockGuard<v8::base::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.
- {
- v8::base::LockGuard<v8::base::Mutex> lock_guard(&mutex);
- for (int n = 0; n < kThreadCount; ++n) {
- CHECK(threads[n].running_);
- CHECK(!threads[n].finished_);
- }
- }
-
- // Tell all threads to quit.
- {
- v8::base::LockGuard<v8::base::Mutex> lock_guard(&mutex);
- for (int n = kThreadCount - 1; n >= 0; --n) {
- CHECK(threads[n].running_);
- CHECK(!threads[n].finished_);
- // Tell the nth thread to quit.
- threads[n].running_ = false;
- }
- cv.NotifyAll();
- }
-
- // Wait for all threads to quit.
- {
- v8::base::LockGuard<v8::base::Mutex> lock_guard(&mutex);
- for (int n = 0; n < kThreadCount; ++n) {
- while (!threads[n].finished_) {
- cv.Wait(&mutex);
- }
- }
- }
-
- // Make sure all threads are finished.
- {
- v8::base::LockGuard<v8::base::Mutex> lock_guard(&mutex);
- for (int n = kThreadCount - 1; n >= 0; --n) {
- CHECK(!threads[n].running_);
- CHECK(threads[n].finished_);
- }
- }
-
- // Join all threads.
- for (int n = 0; n < kThreadCount; ++n) {
- threads[n].Join();
- }
-}
-
-
-class LoopIncrementThread V8_FINAL : public v8::base::Thread {
- public:
- LoopIncrementThread(int rem,
- int* counter,
- int limit,
- int thread_count,
- v8::base::ConditionVariable* cv,
- v8::base::Mutex* mutex)
- : Thread("LoopIncrementThread"), rem_(rem), counter_(counter),
- limit_(limit), thread_count_(thread_count), cv_(cv), mutex_(mutex) {
- CHECK_LT(rem, thread_count);
- CHECK_EQ(0, limit % thread_count);
- }
-
- virtual void Run() V8_OVERRIDE {
- int last_count = -1;
- while (true) {
- v8::base::LockGuard<v8::base::Mutex> lock_guard(mutex_);
- int count = *counter_;
- while (count % thread_count_ != rem_ && count < limit_) {
- cv_->Wait(mutex_);
- count = *counter_;
- }
- if (count >= limit_) break;
- CHECK_EQ(*counter_, count);
- if (last_count != -1) {
- CHECK_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_;
- v8::base::ConditionVariable* cv_;
- v8::base::Mutex* mutex_;
-};
-
-
-TEST(LoopIncrement) {
- static const int kMaxThreadCount = 16;
- v8::base::Mutex mutex;
- v8::base::ConditionVariable cv;
- for (int thread_count = 1; thread_count < kMaxThreadCount; ++thread_count) {
- int limit = thread_count * 100;
- int counter = 0;
-
- // Setup the threads.
- v8::base::Thread** threads = new v8::base::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;
-
- CHECK_EQ(limit, counter);
- }
-}

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