diff --git a/lang/interpret_test/TestAstFunc2/toplevel.txtar b/lang/interpret_test/TestAstFunc2/toplevel.txtar
new file mode 100644
index 00000000..0fb2d5a1
--- /dev/null
+++ b/lang/interpret_test/TestAstFunc2/toplevel.txtar
@@ -0,0 +1,10 @@
+-- main.mcl --
+$pass = $purpleidea != ""
+$result = if $pass {
+	"pass"
+} else {
+	"fail"
+}
+test $result {}
+-- OUTPUT --
+Vertex: test[pass]