def testUdpClientRecv(self):
''' Test the udp client receive method'''
client = ModbusUdpClient()
self.assertRaises(ConnectionException, lambda: client._recv(1024))
client.socket = mockSocket()
self.assertEqual('', client._recv(0))
self.assertEqual('\x00'*4, client._recv(4))
def testUdpClientRecv(self):
''' Test the udp client receive method'''
client = ModbusUdpClient()
self.assertRaises(ConnectionException, lambda: client._recv(1024))
client.socket = mockSocket()
self.assertEqual('', client._recv(0))
self.assertEqual('\x00' * 4, client._recv(4))
def testBasicSyncUdpClient(self):
''' Test the basic methods for the udp sync client'''
# receive/send
client = ModbusUdpClient()
client.socket = mockSocket()
self.assertEqual(0, client._send(None))
self.assertEqual(1, client._send('\x00'))
self.assertEqual('\x00', client._recv(1))
# connect/disconnect
self.assertTrue(client.connect())
client.close()
# already closed socket
client.socket = False
client.close()
self.assertEqual("127.0.0.1:502", str(client))
def testBasicSyncUdpClient(self):
''' Test the basic methods for the udp sync client'''
# receive/send
client = ModbusUdpClient()
client.socket = mockSocket()
self.assertEqual(0, client._send(None))
self.assertEqual(1, client._send('\x00'))
self.assertEqual('\x00', client._recv(1))
# connect/disconnect
self.assertTrue(client.connect())
client.close()
# already closed socket
client.socket = False
client.close()
self.assertEqual("127.0.0.1:502", str(client))
