1 files changed, 12 insertions, 0 deletions
diff --git a/ipc/ipdl/test/ipdl/error/undefMutualRecUnion.ipdl b/ipc/ipdl/test/ipdl/error/undefMutualRecUnion.ipdl
new file mode 100644
index 0000000000..497836ba4f
--- /dev/null
+++ b/ipc/ipdl/test/ipdl/error/undefMutualRecUnion.ipdl
@@ -0,0 +1,12 @@
+//error: union `X' is only partially defined
+//error: union `Y' is only partially defined
+//error: union `Z' is only partially defined
+
+union X { Y; };
+union Y { Z; };
+union Z { X; };
+
+[ChildProc=any]
+protocol undefMutualRecUnion {
+child: async __delete__(X x);
+};