Intro to Python Mocks | Python tutorial
This video is an Intro to Python Mocks from unittest.mock library: what are Python mocks, why we have to use mocks, and when to do it.
How to write Python tests for functions that make a request to external API.
How to use the patch function to test Requests based functions with Python unittest.mock library.
It's a Python unittest mock tutorial for beginners.
Follow me @:
Telegram: https://t.me/red_eyed_coder_club
Twitter: / codereyed
Facebook: https://fb.me/redeyedcoderclub
Timecodes:
00:00 - ideal testable function, and a unit test for it.
02:29 - example of a function with a dependency on another function.
06:02 - a test for the function with a dependency on another function. Problems that Mocks will solve.
07:48 - patch() function from unittest.mock
11:28 - an example of unit test of a function that makes a request to external API and returns a different result each time it's been called. A mock returns another mock. How to test requests.
Why Python mocks are important:
- Mocks eliminate dependency on network, database calls, calls to OS (it will speed testing)
- we get isolated unit tests,
- we can test methods that have no return value
- reduce test complexity. We don't have to write complex logic to handle behavior of methods under tests.
- don't have to wait to implement other methods.
When should you mock?
When you don't want to actually call an object
Intro to Python Mocks | Python tutorial
• Intro to Python Mocks | Python tutorial
#python #testing #redeyedcoderclub
Auf dieser Seite können Sie das Online-Video Intro to Python Mocks | Python tutorial mit der Dauer stunde minuten sekunde in guter Qualität ansehen, das der Benutzer Red Eyed Coder Club 09 Mai 2022 hochgeladen hat, den Link mit Freunden und Bekannten teilen, dieses Video wurde auf Youtube bereits 84,815 Mal angesehen und es wurde von 2 tausend den Zuschauern gefallen. Viel Spaß beim Betrachtenden Zuschauern gefallen!
