mock一般与patch联用
demo.py: def get_sum(x, y): pass -------------------------------------------------------------------- import demo from unittest import mock def test_fun(): mock_get_sum = mock.patch('demo.get_sum', return_value=20) mock_get_sum.start() result = demo.get_sum() mock_get_sum.stop() print(result) -------------------------------------------------------------------- test_fun() # -> 此时返回值为20