def testExecute(self):
client = MagicMock()
client.framer = self._ascii
client.framer._buffer = b'deadbeef'
client.framer.processIncomingPacket = MagicMock()
client.framer.processIncomingPacket.return_value = None
client.framer.buildPacket = MagicMock()
client.framer.buildPacket.return_value = b'deadbeef'
client.framer.sendPacket = MagicMock()
client.framer.sendPacket.return_value = len(b'deadbeef')
request = MagicMock()
request.get_response_pdu_size.return_value = 10
request.unit_id = 1
tm = ModbusTransactionManager(client)
tm._recv = MagicMock(return_value=b'abcdef')
self.assertEqual(tm.retries, 3)
self.assertEqual(tm.retry_on_empty, False)
# tm._transact = MagicMock()
# some response
# tm._transact.return_value = (b'abcdef', None)
tm.getTransaction = MagicMock()
tm.getTransaction.return_value = 'response'
response = tm.execute(request)
self.assertEqual(response, 'response')
# No response
tm._recv = MagicMock(return_value=b'abcdef')
# tm._transact.return_value = (b'', None)
tm.transactions = []
tm.getTransaction = MagicMock()
tm.getTransaction.return_value = None
response = tm.execute(request)
self.assertIsInstance(response, ModbusIOException)
# No response with retries
tm.retry_on_empty = True
tm._recv = MagicMock(side_effect=iter([b'', b'abcdef']))
# tm._transact.side_effect = [(b'', None), (b'abcdef', None)]
response = tm.execute(request)
self.assertIsInstance(response, ModbusIOException)
# retry on invalid response
tm.retry_on_invalid = True
tm._recv = MagicMock(side_effect=iter([b'', b'abcdef', b'deadbe', b'123456']))
# tm._transact.side_effect = [(b'', None), (b'abcdef', None)]
response = tm.execute(request)
self.assertIsInstance(response, ModbusIOException)
# Unable to decode response
tm._recv = MagicMock(side_effect=ModbusIOException())
# tm._transact.side_effect = [(b'abcdef', None)]
client.framer.processIncomingPacket.side_effect = MagicMock(side_effect=ModbusIOException())
self.assertIsInstance(tm.execute(request), ModbusIOException)
def testExecute(self, mock_time):
mock_time.time.side_effect = count()
client = MagicMock()
client.framer = self._ascii
client.framer._buffer = b'deadbeef'
client.framer.processIncomingPacket = MagicMock()
client.framer.processIncomingPacket.return_value = None
client.framer.buildPacket = MagicMock()
client.framer.buildPacket.return_value = b'deadbeef'
client.framer.sendPacket = MagicMock()
client.framer.sendPacket.return_value = len(b'deadbeef')
client.framer.decode_data = MagicMock()
client.framer.decode_data.return_value = {
"unit": 1,
"fcode": 222,
"length": 27
}
request = MagicMock()
request.get_response_pdu_size.return_value = 10
request.unit_id = 1
request.function_code = 222
tm = ModbusTransactionManager(client)
tm._recv = MagicMock(return_value=b'abcdef')
self.assertEqual(tm.retries, 3)
self.assertEqual(tm.retry_on_empty, False)
# tm._transact = MagicMock()
# some response
# tm._transact.return_value = (b'abcdef', None)
tm.getTransaction = MagicMock()
tm.getTransaction.return_value = 'response'
response = tm.execute(request)
self.assertEqual(response, 'response')
# No response
tm._recv = MagicMock(return_value=b'abcdef')
# tm._transact.return_value = (b'', None)
tm.transactions = []
tm.getTransaction = MagicMock()
tm.getTransaction.return_value = None
response = tm.execute(request)
self.assertIsInstance(response, ModbusIOException)
# No response with retries
tm.retry_on_empty = True
tm._recv = MagicMock(side_effect=iter([b'', b'abcdef']))
# tm._transact.side_effect = [(b'', None), (b'abcdef', None)]
response = tm.execute(request)
self.assertIsInstance(response, ModbusIOException)
# wrong handle_local_echo
tm._recv = MagicMock(
side_effect=iter([b'abcdef', b'deadbe', b'123456']))
client.handle_local_echo = True
tm.retry_on_empty = False
tm.retry_on_invalid = False
self.assertEqual(
tm.execute(request).message, '[Input/Output] Wrong local echo')
client.handle_local_echo = False
# retry on invalid response
tm.retry_on_invalid = True
tm._recv = MagicMock(
side_effect=iter([b'', b'abcdef', b'deadbe', b'123456']))
# tm._transact.side_effect = [(b'', None), (b'abcdef', None)]
response = tm.execute(request)
self.assertIsInstance(response, ModbusIOException)
# Unable to decode response
tm._recv = MagicMock(side_effect=ModbusIOException())
# tm._transact.side_effect = [(b'abcdef', None)]
client.framer.processIncomingPacket.side_effect = MagicMock(
side_effect=ModbusIOException())
self.assertIsInstance(tm.execute(request), ModbusIOException)
# Broadcast
client.broadcast_enable = True
request.unit_id = 0
response = tm.execute(request)
self.assertEqual(response, b'Broadcast write sent - '
b'no response expected')