public function testGenericFilter() {
		$subject = new Form(array(
			'model' => __CLASS__,
			'fields' => array('username', 'password', 'group', 'secret'),
			'filters' => array(
				function($form) {
					unset($form['secret']);
					return $form;
				}
			),
			'validators' => array('password' => false)
		));

		$request = (object) array('data' => array(
			'username' => 'bob',
			'group' => 'editors',
			'secret' => 'value',
			'password' => 'foo!'
		));

		$result = $subject->check($request);
		$expected = array('username' => 'bob', 'group' => 'editors', 'password' => 'foo!');
		$this->assertEqual($expected, $result);

		$subject = new Form(array(
			'model' => __CLASS__,
			'fields' => array('username', 'password', 'group', 'secret'),
			'validators' => array('password' => false)
		));

		$request = (object) array('data' => array(
			'username' => 'bob',
			'group' => 'editors',
			'secret' => 'value',
			'password' => 'foo!'
		));

		$result = $subject->check($request);
		$expected = array(
			'username' => 'bob', 'group' => 'editors', 'password' => 'foo!', 'secret' => 'value'
		);
		$this->assertEqual($expected, $result);
	}