What is "Acceptance"?

[Hussein Baghdadi]

Hi.
I have been checking your new book page at Manning web site.
The page mentioned "Acceptance" TDD so many times.
What is Acceptance TDD? is it a fork of TDD?
Thanks.

[Lasse Koskela]

Acceptance Test Driven Development is an extension of the idea of test-first programming to system level functionality. TDD is about writing a unit test, making it pass, and making it pretty. Acceptance TDD is about writing an acceptance test, automating it (if it wasn't written in executable form in the first place), and implementing the missing functionality highlighted by the acceptance test.

[vijay kiranwithvijay]

try to follow this link
http://www.amazon.com/Test-Driven-Acceptance-Java-Developers/dp/1932394850

[Ilja Preuss]

Originally posted by Lasse Koskela:
Acceptance TDD is about writing an acceptance test, automating it (if it wasn't written in executable form in the first place), and implementing the missing functionality highlighted by the acceptance test.

Using TDD to implement that functionality, as far as I can tell?

So you would have an outer loop, with high level tests written from a user perspective, which drives a more tight inner loop of low level tests written from the developer's perspective, which drives the design of the production code?

[Lasse Koskela]

I most certainly consider that a good practice but I would still consider it Acceptance TDD even if the code was written test-last. That's just my "definition", of course.

[Ilja Preuss]

That makes sense. Thanks!