--- /dev/null
+--TEST--
+cookies domain
+--SKIPIF--
+<?php
+include "skipif.inc";
+?>
+--FILE--
+<?php
+echo "Test\n";
+
+$c = new http\Cookie("this=has a domain; domain=.example.com; ");
+var_dump($c->getCookie("this"));
+var_dump((string)$c);
+var_dump($c->getDomain());
+$o = clone $c;
+$d = "sub.example.com";
+$o->setDomain();
+var_dump($o->getDomain());
+var_dump($c->getDomain());
+$o->setDomain($d);
+var_dump($o->getDomain());
+var_dump($c->getDomain());
+var_dump($o->toString());
+
+?>
+DONE
+--EXPECT--
+Test
+string(12) "has a domain"
+string(44) "this=has%20a%20domain; domain=.example.com; "
+string(12) ".example.com"
+NULL
+string(12) ".example.com"
+string(15) "sub.example.com"
+string(12) ".example.com"
+string(47) "this=has%20a%20domain; domain=sub.example.com; "
+DONE