diff --git a/tests/03_function.claro b/tests/03_function.claro
new file mode 100644
index 0000000..e8394f2
--- /dev/null
+++ b/tests/03_function.claro
@@ -0,0 +1,5 @@
+TEACH add TAKES a, b
+    RETURN a + b
+LEARNED
+CALL add WITH 2, 3
+SAY RESULT