Why should I bother with unit testing if I can just use integration tests?

Question

Ok, I know I am going out on a limb making a statement like that, so my question is for everyone to convince me I am wrong. Take this scenario:

I have method A, which ca

Answer 1

I think the major reasons are:

1: unit-level tests give you more information about what's failing.

2: you can't run integration tests until your components are integrated. The sooner you find a bug, the easier/cheaper it is to fix.