InstanceTest.py

from itertools import chain

import unittest


class AspectInstanceTest(unittest.TestCase):

    def test_tastes(
            self, SubAspect, SubAspect_tastes, SubAspect_taste_values
    ):
        using_default_values = SubAspect('py')
        using_custom_values = SubAspect('py', **SubAspect_taste_values)
        assert using_default_values.tastes == {
            name: taste.default for name, taste in SubAspect_tastes.items()}
        assert using_custom_values.tastes == SubAspect_taste_values

    def test__setattr__(self, SubAspect, SubAspect_tastes):
        aspect = SubAspect('py')
        error_str_taste = "can't set taste values of aspectclass instances"
        for name in SubAspect_tastes:
            with self.assertRaisesRegex(AttributeError, error_str_taste):
                setattr(aspect, name, 'value')
        error_str_attr = "can't set attributes of aspectclass instances"
        for name in ['docs', 'subaspects', 'tastes', '_tastes']:
            with self.assertRaisesRegex(AttributeError, error_str_attr):
                setattr(aspect, name, 'value')