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8
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1 # Simulates the busService object without using the D-Bus (intended for unit tests). Data usually stored in
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2 # D-Bus items is now stored in memory.
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3 class MockDbusService(object):
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4 def __init__(self, servicename):
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5 self._dbusobjects = {}
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6 self._callbacks = {}
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7 self._service_name = servicename
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8
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9 def add_path(self, path, value, description="", writeable=False, onchangecallback=None,
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10 gettextcallback=None):
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11 self._dbusobjects[path] = value
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12 if onchangecallback is not None:
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13 self._callbacks[path] = onchangecallback
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14
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15 # Add the mandatory paths, as per victron dbus api doc
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16 def add_mandatory_paths(self, processname, processversion, connection,
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17 deviceinstance, productid, productname, firmwareversion, hardwareversion, connected):
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18 self.add_path('/Management/ProcessName', processname)
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19 self.add_path('/Management/ProcessVersion', processversion)
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20 self.add_path('/Management/Connection', connection)
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21
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22 # Create rest of the mandatory objects
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23 self.add_path('/DeviceInstance', deviceinstance)
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24 self.add_path('/ProductId', productid)
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25 self.add_path('/ProductName', productname)
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26 self.add_path('/FirmwareVersion', firmwareversion)
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27 self.add_path('/HardwareVersion', hardwareversion)
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28 self.add_path('/Connected', connected)
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29
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30 # Simulates a SetValue from the D-Bus, if avaible the onchangecallback associated with the path will
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31 # be called before the data is changed.
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32 def set_value(self, path, newvalue):
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33 callback = self._callbacks.get(path)
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34 if callback is None or callback(path, newvalue):
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35 self._dbusobjects[path] = newvalue
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36
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37 def __getitem__(self, path):
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38 return self._dbusobjects[path]
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39
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40 def __setitem__(self, path, newvalue):
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41 if path not in self._dbusobjects:
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42 raise Exception('Path not registered in service: {}{} (use add_path to register)'.\
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43 format(self._service_name, path))
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44 self._dbusobjects[path] = newvalue
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45
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46 def __delitem__(self, path):
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47 del self._dbusobjects[path]
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48
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49 def __contains__(self, path):
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50 return path in self._dbusobjects
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51
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52 def __enter__(self):
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53 # No batching done in mock object, and we already
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54 # support the required dict interface.
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55 return self
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56
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57 def __exit__(self, *exc):
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58 pass
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