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#!/usr/bin/env python
import unittest
from pymodbus.events import *
from pymodbus.exceptions import NotImplementedException
from pymodbus.exceptions import ParameterException
class ModbusEventsTest(unittest.TestCase):
'''
This is the unittest for the pymodbus.device module
'''
def setUp(self):
''' Sets up the test environment '''
pass
def tearDown(self):
''' Cleans up the test environment '''
pass
def testModbusEventBaseClass(self):
event = ModbusEvent()
self.assertRaises(NotImplementedException, event.encode)
self.assertRaises(NotImplementedException, lambda: event.decode(None))
def testRemoteReceiveEvent(self):
event = RemoteReceiveEvent()
event.decode(b'\x70')
self.assertTrue(event.overrun)
self.assertTrue(event.listen)
self.assertTrue(event.broadcast)
def testRemoteSentEvent(self):
event = RemoteSendEvent()
result = event.encode()
self.assertEqual(result, b'\x40')
event.decode(b'\x7f')
self.assertTrue(event.read)
self.assertTrue(event.slave_abort)
self.assertTrue(event.slave_busy)
self.assertTrue(event.slave_nak)
self.assertTrue(event.write_timeout)
self.assertTrue(event.listen)
def testRemoteSentEventEncode(self):
arguments = {
'read' : True,
'slave_abort' : True,
'slave_busy' : True,
'slave_nak' : True,
'write_timeout' : True,
'listen' : True,
}
event = RemoteSendEvent(**arguments)
result = event.encode()
self.assertEqual(result, b'\x7f')
def testEnteredListenModeEvent(self):
event = EnteredListenModeEvent()
result = event.encode()
self.assertEqual(result, b'\x04')
event.decode(b'\x04')
self.assertEqual(event.value, 0x04)
self.assertRaises(ParameterException, lambda: event.decode(b'\x00'))
def testCommunicationRestartEvent(self):
event = CommunicationRestartEvent()
result = event.encode()
self.assertEqual(result, b'\x00')
event.decode(b'\x00')
self.assertEqual(event.value, 0x00)
self.assertRaises(ParameterException, lambda: event.decode(b'\x04'))
#---------------------------------------------------------------------------#
# Main
#---------------------------------------------------------------------------#
if __name__ == "__main__":
unittest.main()
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