def test_setting_initial_value_delegate_parameter():
value = 10
p = Parameter('testparam', set_cmd=None, get_cmd=None)
d = DelegateParameter('test_delegate_parameter', p, initial_value=value)
assert p.cache.get(get_if_invalid=False) == value
assert d.cache.get(get_if_invalid=False) == value
def test_delegate_cache_pristine_if_not_set():
p = Parameter('test')
d = DelegateParameter('delegate', p)
gotten_delegate_cache = d.cache.get(get_if_invalid=False)
assert gotten_delegate_cache is None
