diff --git a/tests/lib_ns.claro b/tests/lib_ns.claro
new file mode 100644
index 0000000..d2dcda6
--- /dev/null
+++ b/tests/lib_ns.claro
@@ -0,0 +1,7 @@
+TEACH add TAKES a, b
+    RETURN a + b
+LEARNED
+
+TEACH hello TAKES name
+    RETURN "Hi " + name
+LEARNED