public function testUpdate1()
{
$user = new User();
$user->id = "myuser-1234";
$user->username = "test";
$this->dm->persist($user);
$this->dm->flush();
$this->dm->clear();
$user = $this->dm->find($this->type, $user->id);
$user->username = "test2";
$this->dm->flush();
$this->dm->clear();
$userNew = $this->dm->find($this->type, $user->id);
$this->assertEquals($user->username, $userNew->username);
}