Boris Beizer Quotes
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A good threat is worth a thousand tests.
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Bugs lurk in corners and congregate at boundaries.
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Testing proves a programmer’s failure. Debugging is the programmer’s vindication.
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Second law: The complexity barrier. Software complexity and therefore that of bugs grows to the limits of our ability to manage that complexity.
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If the objective of testing were to prove that a program is free of bugs, then not only would testing be practically impossible, but it would also be theoretically impossible.
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A design remedy that prevents bugs is always preferable to a test method that discovers them.
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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.
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More than the act of testing, the act of designing tests is one of the best bug preventers known.
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Extra features were once considered desirable. We now recognize that 'free' features are rarely free. Any increase in generality that does not contribute to reliability, modularity, maintainability, and robustness should be suspected.
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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.
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A test that reveals a bug has succeeded, not failed.
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In programming, it’s often the buts in the specification that kill you.
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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.
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If you can't test it, don't build it. If you don't test it, rip it out.