def test_create_packet(self): message = [ '{"clock": "1457445366", "host": "host1",\ "value": "1", "key": "key1"}', '{"clock": "1457445366", "host": "host2",\ "value": "2", "key": "key2"}'] zs = ZabbixSender() request = zs._create_request(message) result = zs._create_packet(request) data_len = struct.pack('<Q', len(request)) self.assertEqual(result[5:13], data_len) self.assertEqual(result[:13], b'ZBXD\x01\xc4\x00\x00\x00\x00\x00\x00\x00')