1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testThreadingMutex.cpp b/js/src/jsapi-tests/testThreadingMutex.cpp
new file mode 100644
index 0000000000..4e9bd691f7
--- /dev/null
+++ b/js/src/jsapi-tests/testThreadingMutex.cpp
@@ -0,0 +1,49 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jsapi-tests/tests.h"
+#include "threading/LockGuard.h"
+#include "vm/MutexIDs.h"
+
+#ifdef DEBUG
+#  define DEBUG_CHECK(x) CHECK(x)
+#else
+#  define DEBUG_CHECK(x)
+#endif
+
+BEGIN_TEST(testThreadingMutex) {
+  js::Mutex mutex MOZ_UNANNOTATED(js::mutexid::TestMutex);
+  DEBUG_CHECK(!mutex.isOwnedByCurrentThread());
+  mutex.lock();
+  DEBUG_CHECK(mutex.isOwnedByCurrentThread());
+  mutex.unlock();
+  DEBUG_CHECK(!mutex.isOwnedByCurrentThread());
+  return true;
+}
+END_TEST(testThreadingMutex)
+
+BEGIN_TEST(testThreadingLockGuard) {
+  js::Mutex mutex MOZ_UNANNOTATED(js::mutexid::TestMutex);
+  DEBUG_CHECK(!mutex.isOwnedByCurrentThread());
+  js::LockGuard guard(mutex);
+  DEBUG_CHECK(mutex.isOwnedByCurrentThread());
+  return true;
+}
+END_TEST(testThreadingLockGuard)
+
+BEGIN_TEST(testThreadingUnlockGuard) {
+  js::Mutex mutex MOZ_UNANNOTATED(js::mutexid::TestMutex);
+  DEBUG_CHECK(!mutex.isOwnedByCurrentThread());
+  js::LockGuard guard(mutex);
+  DEBUG_CHECK(mutex.isOwnedByCurrentThread());
+  js::UnlockGuard unguard(guard);
+  DEBUG_CHECK(!mutex.isOwnedByCurrentThread());
+  return true;
+}
+END_TEST(testThreadingUnlockGuard)
+
+#undef DEBUG_CHECK