public function testRegexContainment()
{
$this->assertTrue(Validator::isIp('127.0.0.1', null, array('contains' => false)));
Validator::add('foo', '/foo/', array('contains' => true));
$this->assertTrue(Validator::isFoo('foobar'));
Validator::add('foo', 'foo', array('contains' => false));
$this->assertFalse(Validator::isFoo('foobar'));
$this->assertTrue(Validator::isFoo('foo'));
}