codekingpro/portable-devtools

1import unittest2 3from .util import MemorySetup, Traversable4 5 6class TestMemoryTraversableImplementation(unittest.TestCase):7    def test_concrete_methods_are_not_overridden(self):8        """`MemoryTraversable` must not override `Traversable` concrete methods.9 10        This test is not an attempt to enforce a particular `Traversable` protocol;11        it merely catches changes in the `Traversable` abstract/concrete methods12        that have not been mirrored in the `MemoryTraversable` subclass.13        """14 15        traversable_concrete_methods = {16            method17            for method, value in Traversable.__dict__.items()18            if callable(value) and method not in Traversable.__abstractmethods__19        }20        memory_traversable_concrete_methods = {21            method22            for method, value in MemorySetup.MemoryTraversable.__dict__.items()23            if callable(value) and not method.startswith("__")24        }25        overridden_methods = (26            memory_traversable_concrete_methods & traversable_concrete_methods27        )28 29        assert not overridden_methods30