What is testable code?

Posted by Michael Freidgeim on Geeks with Blogs See other posts from Geeks with Blogs or by Michael Freidgeim
Published on Tue, 04 Sep 2012 10:55:13 GMT Indexed on 2012/09/07 21:39 UTC
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We are improving quality of code and trying to develop more unit tests. The question that developers asked  was  "How to make code testable ?"

 

From http://openmymind.net/2010/8/17/Write-testable-code-even-if-you-dont-write-tests/

 First and foremost, its loosely coupled, taking advantage of dependency injection (and auto-wiring), composition and interface-programming. Testable code is also readable - meaning it leverages single responsibility principle and Liskov substitution principle.

A few practical suggestions are listed in 

http://misko.hevery.com/code-reviewers-guide/

More recommendations are in 

http://googletesting.blogspot.com/2008/08/by-miko-hevery-so-you-decided-to.html

It is slightly too theoretical - " the trick is translating these abstract concepts into concrete decisions in your code."

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