public function testGetAndSetField()
{
$fields = array('username' => array('type' => 'text', 'value' => 'Username here...', 'label' => 'Username:'******'required' => true, 'attributes' => array('size' => 40)), 'submit' => array('type' => 'submit', 'value' => 'SUBMIT'));
$f = new Form('/submit', 'post', $fields);
$submit = $f->getField('submit');
$this->assertEquals('SUBMIT', $submit['value']);
$submit['value'] = 'NEW SUBMIT';
$f->setField('submit', $submit);
$submit = $f->getField('submit');
$this->assertEquals('NEW SUBMIT', $submit['value']);
}