--- /dev/null
+--TEST--
+url modification
+--SKIPIF--
+<?php
+include "skipif.inc";
+?>
+--FILE--
+<?php
+echo "Test\n";
+
+$u = "http://user:pass@www.example.com:8080/path/file.ext".
+ "?foo=bar&more[]=1&more[]=2#hash";
+
+$tmp = new http\Url($u);
+$mod = $tmp->mod(array("query" => "set=1"), http\Url::REPLACE);
+var_dump($tmp->toArray() != $mod->toArray());
+var_dump("set=1" === $mod->query);
+var_dump("new_fragment" === $tmp->mod("#new_fragment")->fragment);
+
+?>
+DONE
+--EXPECT--
+Test
+bool(true)
+bool(true)
+bool(true)
+DONE