def test_that_switch_pv_value_equals_switch_state_value_when_disabled(
self):
raw_value = self.device.switchstates['disable']
create_method_patch(self, EpicsDeviceThatHasDisablePv, '_get_pv',
return_value_wrapper(raw_value))
assert self.device._get_pv('switchpv:read') == raw_value
assert not self.device.isEnabled
def test_enable_sets_switchpv_write_if_not_enabled(self):
disable_value = self.device.switchstates['disable']
enable_value = self.device.switchstates['enable']
create_method_patch(self, EpicsDeviceThatHasDisablePv, 'isEnabled',
disable_value)
with patch.object(EpicsDeviceThatHasDisablePv, '_put_pv') as \
mock_put_pv:
self.device.enable()
mock_put_pv.assert_called_once_with('switchpv:write', enable_value)
def test_is_enabled_raise_exception_if_different_from_switchstates(self):
raw_value = 'on'
disable_value = self.device.switchstates['disable']
enable_value = self.device.switchstates['enable']
assert not raw_value in [disable_value, enable_value]
create_method_patch(self, EpicsDeviceThatHasDisablePv, '_get_pv',
return_value_wrapper(raw_value))
with self.assertRaises(Exception) as context:
assert self.device._get_pv('switchpv:read') == raw_value
assert not self.device.isEnabled in [disable_value, enable_value]
assert isinstance(context.exception, ConfigurationError)
def test_disable_does_nothing_if_already_disabled(self):
raw_value = self.device.switchstates['disable']
create_method_patch(self, EpicsDeviceThatHasDisablePv, 'isEnabled',
raw_value)
self.device.disable()
assert not self.mock.mock_calls