Test-Driven Development (TDD) in Python #1 - The 3 Steps of TDD

Jason Gorman demonstrates the 3 steps of the TDD cycle.

1. Write a failing test
2. Write the simplest code to pass the test
3. Refactor if necessary to keep the code readable, simple & easy to change

[RoamingAdhocrat]

Great series. It's even more helpful on rewatch after trying it out.

[freesoftwaretalk]

Please - YES PLEASE - do also create tests for malicious submissions. Do test what happens when you buy '-1' items, or if you buy 'null' items. Then you've got all the injection type of entries... TDD basically boils down to creating a small checklist of expected behavior and code towards that. The hacker mindset will try to find what you didn't test for. (so these tests are a golden gift to scan your test scope)

[leo]

Easy to follow and straight to the point. Thanks!

[francisconavarro]

Good video, simple and understandable.

[jasondads]

What is the shortcut you used to move the class to another file?

[gaby]

this is incredibly backwards, but its becoming popular so thank you for explaining it.

[nullhype]

For some reason I keep seeing Paul Bettany in my head, but I'm a Yank so what do I know.

[LukeBrewMoreBeer]

How did you refactor Item into its own file? Some keyboard shortcut?