Mocking

README.md

Mocking Exercises

These are a few exercises to get used to using mocking.

Pairs

Take a list of array elements and group them.

[1, 2, 3, 4, 5]

[[1, 2], [3, 4], [5]]

Implement this using TDD and Mocks.

Adder

Consider the following example

import time


class ScoreTypeA:
    def score(self):
        result = 10
        # Complex Calculation
        time.sleep(100)
        return result

class ScoreTypeB:
    def score(self):
        result = 11
        # Complex Calculation
        time.sleep(100)
        return result
        
assert adder([ScoreTypeA(), ScoreTypeA(), ScoreTypeB()]) == 31

Write a function to add any object with a score function. Don't use the real ScoreTypeB objects, as the complex calculation they perform takes several hours.

Monkeys

Requests is a python library to make HTTP requests. This is how you make a HTTP Request using it.

import requests

r = requests.get("https://example.com/")
print(r.json())

Write a script to work out your current external IP address. Mock out the request

Tips

• ipify API
• Patching