Manual or automated, what type of testing you prefer for your web apps?

@alex_cloudstar Do you find it reliable? Have you ever written automated tests?

@praveentiwari No, I didn't write any automated tests, I saw how they're done. But I'm focused on development, and anyway in most of the cases, we have testers who do that. What is your tough?

@alex_cloudstar But isn't testing part of development? How do you make sure the code you written doesn't break any other part of the app that you might not have manually tested?