public function testGetEntityByAlias()
 {
     $query = new Query();
     $query->setMappingConfig($this->config);
     $result = $query->getEntityByAlias('test_alias');
     $this->assertEquals('Oro\\Bundle\\DataBundle\\Entity\\Product', $result);
     $this->assertFalse($query->getEntityByAlias('bad alias'));
 }