How to mock python's datetime.now() in a class method for unit testing?

Question

I\'m trying to write tests for a class that has methods like:

import datetime
import pytz

class MyClass:
    def get_now(self, timezone):
        return dat         


        

Answer 1

If you don't want to install anything this is the simplest way. Simply use, Mock class -

class NewDt(datetime.date):
    @classmethod
     def now(cls):
           return datetime.datetime.strptime('2020-07-10 05:20:20', '%Y-%m-%d %H:%M:%S')

And use this patch before mock function

 @mock.patch('module path', NewDt)