public function testFindWrongTypesDoesNotMessUnitOfWork()
{
try {
$user1 = $this->dm->find(__NAMESPACE__ . '\\User2', 1);
$this->fail('Expecting InvalidDocumentTypeException');
} catch (InvalidDocumentTypeException $e) {
}
$user1 = $this->dm->find(__NAMESPACE__ . '\\User', 1);
$this->assertEquals('lsmith', $user1->username);
}