public function testAttributes()
{
$d = new Dummy();
$d->dum = 'dum-dum';
$this->assertTrue($d->hasAttribute('dum'));
$an = $d->attributeNames();
$this->assertArrayHasKey('dum', array_flip($an));
$d->username = '******';
$attr = $d->getAttributes();
$this->assertArrayHasKey('username', $attr);
$this->assertArrayHasKey('dum', $attr);
}