diff --git a/ext/unicode/tests/iterator_002.phpt b/ext/unicode/tests/iterator_002.phpt
new file mode 100755
index 00000000000..1e3ce7447e3
--- /dev/null
+++ b/ext/unicode/tests/iterator_002.phpt
@@ -0,0 +1,35 @@
+--TEST--
+Unicode: Iterator and key()
+--SKIPIF--
+<?php if (!unicode_semantics()) die('skip unicode_semantics=off'); ?>
+--FILE--
+<?php
+
+foreach(new TextIterator("123") as $pos => $char)
+{
+	var_dump($pos);
+	var_dump($char);
+}
+
+foreach(new ReverseTextIterator("123") as $pos => $char)
+{
+	var_dump($pos);
+	var_dump($char);
+}
+
+?>
+===DONE===
+--EXPECTF--
+int(0)
+unicode(1) "1"
+int(1)
+unicode(1) "2"
+int(2)
+unicode(1) "3"
+int(0)
+unicode(1) "3"
+int(1)
+unicode(1) "2"
+int(2)
+unicode(1) "1"
+===DONE===