protected function presenceOf(UnitTester $I)
{
$model = new Subscriptores();
$I->assertFalse($model->save(['email' => '[email protected]', 'created_at' => null, 'status' => 'A']));
$expected = [Message::__set_state(['_message' => 'Field created_at is required', '_field' => 'created_at', '_type' => 'PresenceOf', '_code' => 0])];
$I->assertEquals($expected, $model->getMessages());
}