diff -r 000000000000 -r 6474c204b198 media/mtransport/test/gtest_utils.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/media/mtransport/test/gtest_utils.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=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/. */
+
+// Utilities to wrap gtest, based on libjingle's gunit
+
+// Some sections of this code are under the following license:
+
+/*
+ * libjingle
+ * Copyright 2004--2008, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *  2. 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.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+// Original author: ekr@rtfm.com
+#ifndef gtest_utils_h__
+#define gtest_utils_h__
+
+#include <iostream>
+
+#include "nspr.h"
+#include "prinrval.h"
+#include "prthread.h"
+
+#define GTEST_HAS_RTTI 0
+#include "gtest/gtest.h"
+
+// Wait up to timeout seconds for expression to be true
+#define WAIT(expression, timeout) \
+  do { \
+  for (PRIntervalTime start = PR_IntervalNow(); !(expression) &&        \
+           ! ((PR_IntervalNow() - start) > PR_MillisecondsToInterval(timeout));) \
+    PR_Sleep(10); \
+  } while(0)
+
+// Same as GTEST_WAIT, but stores the result in res. Used when
+// you also want the result of expression but wish to avoid
+// double evaluation.
+#define WAIT_(expression, timeout, res)                      \
+  do { \
+  for (PRIntervalTime start = PR_IntervalNow(); !(res = (expression)) && \
+           ! ((PR_IntervalNow() - start) > PR_MillisecondsToInterval(timeout));) \
+    PR_Sleep(10); \
+  } while(0)
+
+#define ASSERT_TRUE_WAIT(expression, timeout) \
+  do { \
+  bool res; \
+  WAIT_(expression, timeout, res); \
+  ASSERT_TRUE(res); \
+  } while(0);
+
+#define EXPECT_TRUE_WAIT(expression, timeout) \
+  do { \
+  bool res; \
+  WAIT_(expression, timeout, res); \
+  EXPECT_TRUE(res); \
+  } while(0);
+
+#endif
+
+
+