public function testExistingUuuid()
{
$testUuid = UuidHelper::generateUUID();
$newUser = new UserWithUuid();
$newUser->username = '******';
$newUser->id = '/functional/test';
$newUser->uuid = $testUuid;
$this->dm->persist($newUser);
$uuidPostPersist = $newUser->uuid;
$this->assertNotNull($uuidPostPersist);
$this->assertEquals($testUuid, $uuidPostPersist);
$this->dm->flush();
$this->dm->clear();
$flushedUser = $this->dm->find(null, '/functional/test');
$this->assertEquals($testUuid, $flushedUser->uuid);
}
