def test_show_when_raise_error():
c = DummyDeviceControl(raise_error=Exception)
with pytest.raises(Exception):
c.show('eth0')
def test_show_when_no_arguments_are_passed():
c = DummyDeviceControl()
with pytest.raises(ValueError):
c.show('eth0')
def test_show():
result_show = {'key': 'value'}
c = DummyDeviceControl(result_show=result_show)
ifname = 'eth0'
assert c.show(ifname) == result_show
assert c.show_args == [ifname]