diff --git a/tests/016-define-func-1-arg.c b/tests/016-define-func-1-arg.c
new file mode 100644
index 00000000000..dea38d1fedd
--- /dev/null
+++ b/tests/016-define-func-1-arg.c
@@ -0,0 +1,2 @@
+#define foo(x) ((x) + 1)
+foo(bar)
diff --git a/tests/017-define-func-2-args.c b/tests/017-define-func-2-args.c
new file mode 100644
index 00000000000..c7253835278
--- /dev/null
+++ b/tests/017-define-func-2-args.c
@@ -0,0 +1,2 @@
+#define foo(x,y) ((x)*(y))
+foo(bar,baz)