1 files changed, 91 insertions, 0 deletions
diff --git a/deps/v8/src/base/platform/mutex-unittest.cc b/deps/v8/src/base/platform/mutex-unittest.cc
new file mode 100644
index 0000000000..5af5efb5a9
--- /dev/null
+++ b/deps/v8/src/base/platform/mutex-unittest.cc
@@ -0,0 +1,91 @@
+// 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/mutex.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace v8 {
+namespace base {
+
+TEST(Mutex, LockGuardMutex) {
+  Mutex mutex;
+  { LockGuard<Mutex> lock_guard(&mutex); }
+  { LockGuard<Mutex> lock_guard(&mutex); }
+}
+
+
+TEST(Mutex, LockGuardRecursiveMutex) {
+  RecursiveMutex recursive_mutex;
+  { LockGuard<RecursiveMutex> lock_guard(&recursive_mutex); }
+  {
+    LockGuard<RecursiveMutex> lock_guard1(&recursive_mutex);
+    LockGuard<RecursiveMutex> lock_guard2(&recursive_mutex);
+  }
+}
+
+
+TEST(Mutex, LockGuardLazyMutex) {
+  LazyMutex lazy_mutex = LAZY_MUTEX_INITIALIZER;
+  { LockGuard<Mutex> lock_guard(lazy_mutex.Pointer()); }
+  { LockGuard<Mutex> lock_guard(lazy_mutex.Pointer()); }
+}
+
+
+TEST(Mutex, LockGuardLazyRecursiveMutex) {
+  LazyRecursiveMutex lazy_recursive_mutex = LAZY_RECURSIVE_MUTEX_INITIALIZER;
+  { LockGuard<RecursiveMutex> lock_guard(lazy_recursive_mutex.Pointer()); }
+  {
+    LockGuard<RecursiveMutex> lock_guard1(lazy_recursive_mutex.Pointer());
+    LockGuard<RecursiveMutex> lock_guard2(lazy_recursive_mutex.Pointer());
+  }
+}
+
+
+TEST(Mutex, MultipleMutexes) {
+  Mutex mutex1;
+  Mutex mutex2;
+  Mutex mutex3;
+  // Order 1
+  mutex1.Lock();
+  mutex2.Lock();
+  mutex3.Lock();
+  mutex1.Unlock();
+  mutex2.Unlock();
+  mutex3.Unlock();
+  // Order 2
+  mutex1.Lock();
+  mutex2.Lock();
+  mutex3.Lock();
+  mutex3.Unlock();
+  mutex2.Unlock();
+  mutex1.Unlock();
+}
+
+
+TEST(Mutex, MultipleRecursiveMutexes) {
+  RecursiveMutex recursive_mutex1;
+  RecursiveMutex recursive_mutex2;
+  // Order 1
+  recursive_mutex1.Lock();
+  recursive_mutex2.Lock();
+  EXPECT_TRUE(recursive_mutex1.TryLock());
+  EXPECT_TRUE(recursive_mutex2.TryLock());
+  recursive_mutex1.Unlock();
+  recursive_mutex1.Unlock();
+  recursive_mutex2.Unlock();
+  recursive_mutex2.Unlock();
+  // Order 2
+  recursive_mutex1.Lock();
+  EXPECT_TRUE(recursive_mutex1.TryLock());
+  recursive_mutex2.Lock();
+  EXPECT_TRUE(recursive_mutex2.TryLock());
+  recursive_mutex2.Unlock();
+  recursive_mutex1.Unlock();
+  recursive_mutex2.Unlock();
+  recursive_mutex1.Unlock();
+}
+
+}  // namespace base
+}  // namespace v8