gistfile1.txt

class User:
	def __init__(self, name):
		self.name = name

	def get_name(self):
		return self.name

Python mock

import unittest
from unittest.mock import Mock, patch
from user import User

class MockUpTest(unittest.TestCase):

	def test_get_name(self):

		mock_user = Mock(spec=User)
		mock_obj = mock_user()
		mock_obj.get_name.return_value = "Biondi"
		
		self.assertEqual(mock_obj.get_name(), "Biondi")

	@patch("user.User.get_name")
	def test_get_name(self, mock_user):
		mock_user.return_value = "Biondi"

		self.assertEqual(User("Arvin").get_name(), "Biondi")


if __name__ == '__main__':
	unittest.main()