def test_run(self, *args):
"""Test multipath device populator."""
device_get_name = args[0]
add_slave_devices = args[1]
devicetree = DeviceTree()
# set up some fake udev data to verify handling of specific entries
data = Mock()
_data = {"ID_WWN": "0x5000c50086fb75ca", "DM_UUID": "1-2-3-4"}
def _getitem_(key, extra=None):
return _data.get(key, extra)
data.get = Mock(side_effect=_getitem_)
data.__getitem__ = Mock(side_effect=_getitem_)
device_name = "mpathtest"
device_get_name.return_value = device_name
slave_1 = Mock(tags=set())
slave_1.parents = []
slave_2 = Mock(tags=set())
slave_2.parents = []
devicetree._add_device(slave_1)
devicetree._add_device(slave_2)
add_slave_devices.return_value = [slave_1, slave_2]
helper = self.helper_class(devicetree, data)
device = helper.run()
self.assertIsInstance(device, MultipathDevice)
self.assertTrue(device.exists)
self.assertEqual(device.name, device_name)
self.assertEqual(device.wwn, _data["ID_WWN"])
self.assertTrue(device in devicetree.devices)
