diff --git a/src/tests.rs b/src/tests.rs
index 9f6703d..b17c8be 100644
--- a/src/tests.rs
+++ b/src/tests.rs
@@ -216,4 +216,11 @@ fn complex_units() {
 	good_expr("120 m", "(2 min) * (1 m/s)");
 	good_expr("180", "1 Hz * 3 min");
 	good_expr("3600", "1 hour * 1 Hz");
+}
+
+#[test]
+fn functions() {
+	good_expr("2", "nounit(2 mm)");
+	good_expr("2", "nounit(2 meter * second)");
+	//good_expr("5000 m²·g/(s²·A²)", "tobase(5H)");
 }
\ No newline at end of file