How should I unit test threaded code?

Question

I have thus far avoided the nightmare that is testing multi-threaded code since it just seems like too much of a minefield. I\'d like to ask how people have gone about test

Answer 1

Another way to (kinda) test threaded code, and very complex systems in general is through Fuzz Testing. It's not great, and it won't find everything, but its likely to be useful and its simple to do.

Quote:

Fuzz testing or fuzzing is a software testing technique that provides random data("fuzz") to the inputs of a program. If the program fails (for example, by crashing, or by failing built-in code assertions), the defects can be noted. The great advantage of fuzz testing is that the test design is extremely simple, and free of preconceptions about system behavior.

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Fuzz testing is often used in large software development projects that employ black box testing. These projects usually have a budget to develop test tools, and fuzz testing is one of the techniques which offers a high benefit to cost ratio.

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However, fuzz testing is not a substitute for exhaustive testing or formal methods: it can only provide a random sample of the system's behavior, and in many cases passing a fuzz test may only demonstrate that a piece of software handles exceptions without crashing, rather than behaving correctly. Thus, fuzz testing can only be regarded as a bug-finding tool rather than an assurance of quality.