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comparison velib_python/test/mock_dbus_service.py @ 8:9c0435a617db

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Import velib_python
author Daniel O'Connor <darius@dons.net.au>
date Sun, 05 Dec 2021 14:35:36 +1030
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5:982eeffe9d95 8:9c0435a617db
1 # Simulates the busService object without using the D-Bus (intended for unit tests). Data usually stored in
2 # D-Bus items is now stored in memory.
3 class MockDbusService(object):
4 def __init__(self, servicename):
5 self._dbusobjects = {}
6 self._callbacks = {}
7 self._service_name = servicename
8
9 def add_path(self, path, value, description="", writeable=False, onchangecallback=None,
10 gettextcallback=None):
11 self._dbusobjects[path] = value
12 if onchangecallback is not None:
13 self._callbacks[path] = onchangecallback
14
15 # Add the mandatory paths, as per victron dbus api doc
16 def add_mandatory_paths(self, processname, processversion, connection,
17 deviceinstance, productid, productname, firmwareversion, hardwareversion, connected):
18 self.add_path('/Management/ProcessName', processname)
19 self.add_path('/Management/ProcessVersion', processversion)
20 self.add_path('/Management/Connection', connection)
21
22 # Create rest of the mandatory objects
23 self.add_path('/DeviceInstance', deviceinstance)
24 self.add_path('/ProductId', productid)
25 self.add_path('/ProductName', productname)
26 self.add_path('/FirmwareVersion', firmwareversion)
27 self.add_path('/HardwareVersion', hardwareversion)
28 self.add_path('/Connected', connected)
29
30 # Simulates a SetValue from the D-Bus, if avaible the onchangecallback associated with the path will
31 # be called before the data is changed.
32 def set_value(self, path, newvalue):
33 callback = self._callbacks.get(path)
34 if callback is None or callback(path, newvalue):
35 self._dbusobjects[path] = newvalue
36
37 def __getitem__(self, path):
38 return self._dbusobjects[path]
39
40 def __setitem__(self, path, newvalue):
41 if path not in self._dbusobjects:
42 raise Exception('Path not registered in service: {}{} (use add_path to register)'.\
43 format(self._service_name, path))
44 self._dbusobjects[path] = newvalue
45
46 def __delitem__(self, path):
47 del self._dbusobjects[path]
48
49 def __contains__(self, path):
50 return path in self._dbusobjects
51
52 def __enter__(self):
53 # No batching done in mock object, and we already
54 # support the required dict interface.
55 return self
56
57 def __exit__(self, *exc):
58 pass