diff --git a/src/testdir/test86.in b/src/testdir/test86.in
index ba3557b..48fa4e5 100644
--- a/src/testdir/test86.in
+++ b/src/testdir/test86.in
@@ -1088,6 +1088,9 @@
 stringtochars_test('d.get(%s)')
 ee('d.pop("a")')
 ee('dl.pop("a")')
+cb.append(">> DictionaryContains")
+ee('"" in d')
+ee('0 in d')
 cb.append(">> DictionaryIterNext")
 ee('for i in ned: ned["a"] = 1')
 del i