Howto combine unit testing with assert()

Suppose that the preconditions of my object's functions are checked with assert(). How can I then, without ripping my hair off in the process, write meaningful unit tests that catches the precondition failures when I pass invalid parameters to the functions?

I mean, assert() will abort(), so how can I then perform all o开发者_开发技巧ther tests after that?

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You could replace assert() with a macro that calls your unit-testing framework when unit-testing but evaluates to assert() otherwise.

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As time passes, I've become less and less keen on using assert. But if you want to use it, I suggest writing your own version which throws exceptions (which can be caught), rather than calling abort().

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Run your tests in a sub-process. Passing invalid parameters will cause the child to abort, but your test (the parent) continues running.