CakePHP test - unit Testing

Question

I am new to testing or so called unit testing. i am on the verge of finishing a web application. i wanna know is unit testing important. and how does it help ?

as i have never written a test. can i get reference to some kinda guide or tutoriials regarding to writing test ?

i am using cakephp framework.

Answer 1

Here is a great introduction to unit testing and how to do it with CakePHP.