1 files changed, 19 insertions, 0 deletions
diff --git a/dom/media/gtest/WaitFor.cpp b/dom/media/gtest/WaitFor.cpp
new file mode 100644
index 0000000000..ab96fa9ae5
--- /dev/null
+++ b/dom/media/gtest/WaitFor.cpp
@@ -0,0 +1,19 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
+/* 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 "WaitFor.h"
+
+namespace mozilla {
+
+void WaitFor(MediaEventSource<void>& aEvent) {
+  bool done = false;
+  MediaEventListener listener =
+      aEvent.Connect(AbstractThread::GetCurrent(), [&] { done = true; });
+  SpinEventLoopUntil<ProcessFailureBehavior::IgnoreAndContinue>(
+      "WaitFor(MediaEventSource<void>& aEvent)"_ns, [&] { return done; });
+  listener.Disconnect();
+}
+
+}  // namespace mozilla