public function testMixedFieldMapping()
{
$subject = new Form(array('model' => __CLASS__, 'fields' => array('username' => 'name', 'group'), 'validators' => array()));
$request = (object) array('data' => array('username' => 'Bob', 'group' => 'editors'));
$expected = array('name' => 'Bob', 'group' => 'editors');
$this->assertEqual($expected, $subject->check($request));
}