diff --git a/examples/tests.modal b/examples/tests.modal
index 822a8dc..8a47786 100644
--- a/examples/tests.modal
+++ b/examples/tests.modal
@@ -58,15 +58,22 @@ prefix-anything = anything-suffix (substring 2) test
 (?(?x (?x ?x)) abc) = (abc abc) (lambda 1) test
 abc ?(?x) def = abc (lambda 2) test
 
-?(?-) (Explode)
+?(?-) (op: explode)
 
-(?(?* ?*) cow) = (c (o (w ()))) (explode 1) test
-(?(?* ?*) (12 34 45)) = (12 (34 (45 ()))) (explode 2) test
+(?(?* ?*) cow) = (c (o (w ()))) (explode word) test
+(?(?* ?*) (12 34 45)) = (12 (34 (45 ()))) (explode tuple) test
+(?(?* ?*) ()) = () (explode empty) test
 
 ?(?-) (op: join)
 
 ?(?^ ?^) (b (a (t ()))) = bat (join 1) test
 ?(?^ ?^) (12 (34 (56 ()))) = 123456 (join 2) test
+(?(?^ ?^) ()) = () (join empty) test
+
+?(?-) (op: unwrap)
+
+?(?. ?.) (abcd) = abcd (unwrap 1) test
+(?(?. ?.) ()) = () (unwrap empty) test
 
 ?(?-) (List reversal)