public function testClass()
{
$this->request->params = array('command' => 'model', 'action' => 'Posts');
$model = new Model(array('request' => $this->request, 'classes' => $this->classes));
$expected = 'Posts';
$result = $model->invokeMethod('_class', array($this->request));
$this->assertEqual($expected, $result);
}