A simple test that demonstrate the autospec parameter in @patch decorator.

test_autospec.py

import unittest
from unittest.mock import patch


class MyDummyClass:

    def test_dummy_function(self):
        return "hello"


class TestAutoSpec(unittest.TestCase):

    @patch('test_func.MyDummyClass', autospec=True)
    def test_autospec_true(self, mock_dummy_class):
        print(dir(mock_dummy_class))
        pass

    @patch('test_func.MyDummyClass')
    def test_autospec_false(self, mock_dummy_class):
        print(dir(mock_dummy_class))
        pass