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How to write tests for bad input, e.g. to check its proper handling

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Ilya on 2 Jan 2016
Commented: Ilya on 3 Jan 2016
This can be also related to the following StackOverflow question...
To be more concrete: It's clear how to write tests that validate some expected outputs (testCase.validateEqual() etc.).
However, how do I validate that e.g. some exception was properly thrown as a response to e.g. some bad input data? Usually if an exception occurs in the function-under-test, the corresponding test function is marked as both "failed" and "incomplete".


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Accepted Answer

Steven Lord
Steven Lord on 2 Jan 2016
Use testCase.verifyError. The first input should be a function handle that will throw the error when evaluated, and the second should be the error identifier.

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