public function testMutationResetsUriStringPropertyInClone($method, $value)
{
$uri = new Uri('http://example.com/path?query=string#fragment');
$string = (string) $uri;
$this->assertAttributeEquals($string, 'uriString', $uri);
$test = $uri->{$method}($value);
$this->assertAttributeInternalType('null', 'uriString', $test);
$this->assertAttributeEquals($string, 'uriString', $uri);
}