Yii php unit test action create - unit-testing

Question

I have installed php unit in my local server, but I dont understand (reading the php unit help) how to test my action create. My action is this, and the only thing I want to test is if it saves on database.
/**
* Creates a new model.
* If creation is successful, the browser will be redirected to the 'view' page.
*/
public function actionCreate() {
$_class = $this->getClassName();
$model = new $_class;
if (isset($_POST)) {
$model->attributes = $_POST;
$this->armaMensajeABMGrilla($model->save(), $model);
}
$this->renderPartial('create', array(
'model' => $model,), false, true);
}
protected function armaMensajeABMGrilla($guardoOk, $modelo = null) {
if ($guardoOk == true) {
$this->respuestaJSON = array('success' => true, 'mensaje' => 'ok');
} else {
$erroresMensaje = 'Listado de Errores: <br/><ul>';
$i = 0;
if (isset($modelo->errors)) {
foreach ($modelo->errors as $error) {
$erroresMensaje .= '<li>Error(' . $i . '): ' . $error[0] . '</li>';
$i++;
}
$erroresMensaje.='</ul>';
}
$this->respuestaJSON = array('success' => false, 'mensaje' => $erroresMensaje);
}
$this->renderJSON($this->respuestaJSON);
}
How will be the test method? something like this?
public function actionCreateTest(){
$model = new Model;
$this->asserttrue($model->save());
}

Answer 1

write functional tests for testing controllers functionality instead of unit tests,also
the thing that you are asserting here
$this->assertEquals(true,$controller->actionCreate());
if the outcome of $controller->actionCreate() is the value true, which is not!
you are $this->renderPartial() in that and returning nothing, so that statement will never be true.