def test_initial_None(self):
class S8:
r"""
This is a docstring
"""
a = 1
b = None
sets8 = SettingsAttr(S8)
sets8.b = 2.2
assert sets8.b == 2.2
with pytest.raises(Exception):
sets8.b = 'str'
def test_inheritance_and_immutability(self):
class S2:
r"""
This is a docstring
"""
a = 2
b = 3
class S3(S2):
r"""
Different docstring
"""
b = 3
c = 4
sets2 = SettingsAttr(S2)
sets3 = SettingsAttr(S3)
sets3.b = 44
assert sets3._attrs == ['a', 'b', 'c']
assert sets2.b != sets3.b
assert "Different docstring" in sets3.__doc__
with pytest.raises(Exception):
sets3.b = 'nope'