import abc
import inspect
from unittest.mock import MagicMock
 
class A(abc.ABC):
    pass
 
class B(A):
    pass
 
def test_sub_class():
    b_class_mock = _create_class_mock(B)
 
    print(isinstance(b_class_mock, type))
    print(inspect.isclass(b_class_mock))
    print(issubclass(b_class_mock, A))
 
def _create_class_mock(cls):
    class _MockABCMeta(abc.ABCMeta):
        def __getattribute__(self, name):
            try:
                return getattr(mock, name)
            except AttributeError:
                return getattr(cls, name)
 
    mock = MagicMock(spec=cls)
    return _MockABCMeta(cls.__name__, cls.__bases__, {})
 
test_sub_class()

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