diff -r 000000000000 -r 6474c204b198 ipc/ipdl/test/cxx/TestSyncError.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/ipdl/test/cxx/TestSyncError.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,61 @@
+#include "TestSyncError.h"
+
+#include "IPDLUnitTests.h"      // fail etc.
+
+namespace mozilla {
+namespace _ipdltest {
+
+//-----------------------------------------------------------------------------
+// parent
+
+TestSyncErrorParent::TestSyncErrorParent()
+{
+    MOZ_COUNT_CTOR(TestSyncErrorParent);
+}
+
+TestSyncErrorParent::~TestSyncErrorParent()
+{
+    MOZ_COUNT_DTOR(TestSyncErrorParent);
+}
+
+void
+TestSyncErrorParent::Main()
+{
+    if (!SendStart())
+        fail("sending Start");
+}
+
+bool
+TestSyncErrorParent::RecvError()
+{
+    return false;
+}
+
+
+//-----------------------------------------------------------------------------
+// child
+
+TestSyncErrorChild::TestSyncErrorChild()
+{
+    MOZ_COUNT_CTOR(TestSyncErrorChild);
+}
+
+TestSyncErrorChild::~TestSyncErrorChild()
+{
+    MOZ_COUNT_DTOR(TestSyncErrorChild);
+}
+
+bool
+TestSyncErrorChild::RecvStart()
+{
+    if (SendError())
+        fail("Error() should have return false");
+
+    Close();
+
+    return true;
+}
+
+
+} // namespace _ipdltest
+} // namespace mozilla