1 files changed, 18 insertions, 0 deletions
diff --git a/ipc/ipdl/test/cxx/PTestHighestPrio.ipdl b/ipc/ipdl/test/cxx/PTestHighestPrio.ipdl
new file mode 100644
index 000000000..0192f59b2
--- /dev/null
+++ b/ipc/ipdl/test/cxx/PTestHighestPrio.ipdl
@@ -0,0 +1,18 @@
+namespace mozilla {
+namespace _ipdltest {
+
+nested(upto inside_cpow) sync protocol PTestHighestPrio
+{
+parent:
+  nested(inside_cpow) async Msg1();
+  nested(inside_sync) sync Msg2();
+  nested(inside_cpow) async Msg3();
+  nested(inside_cpow) sync Msg4();
+
+child:
+  async Start();
+  nested(inside_sync) sync StartInner();
+};
+
+}
+}