14 Quotes by Boris Beizer

Anything written by people has bugs. Not testing something is equivalent to asserting that it's bug-free. Programmers can't think of everything especially of all the possible interactions between features and between different pieces of software. We try to break software because that's the only practical way we know of to be confident about the product's fitness for use.

Testing proves a programmer’s failure. Debugging is the programmer’s vindication.

First law: The pesticide paradox. Every method you use to prevent or find bugs leaves a residue of subtler bugs against which those methods are ineffective.

If you can’t test it, don’t build it. If you don’t test it, rip it out.

Software never was perfect and won’t get perfect. But is that a license to create garbage? The missing ingredient is our reluctance to quantify quality.

A test that reveals a bug has succeeded, not failed.

Bugs lurk in corners and congregate at boundaries.

More than the act of testing, the act of designing tests is one of the best bug preventers known.

One of the saddest sights to me has always been a human at a keyboard doing something by hand that could be automated. It’s sad but hilarious.