Mocking a global variable

Question

I\'ve been trying to implement some unit tests for a module. An example module named alphabet.py is as follows:

import database

def length_letters(         


        

Answer 1

You don't need to use mock. Just import the module and alter the value of the global within setUp():

import alphabet

class TestAlphabet(unittest.TestCase): 
   def setUp(self):
        alphabet.letters = ['a', 'b', 'c']