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What does it mean, when you do a white box test :

"cover the edges with a basis, if possible. Otherwise cover the paths with a set of arbitrary test cases".

What I usually do in this kind of exercises is to compute the cyclomatic complexity of my control graph , and then find a number of paths that is the same of my complexity. I wrote the test cases and I finished.

How do I verify if my edges coverage is a basis ?

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  • What kind of coverage are you referring to? Branch coverage or path coverage? Moreover, I don't understand the term basis here - do you have a link to what is meant by that?
    – Dirk Herrmann
    Commented Jan 19, 2019 at 0:33
  • path coverage , a basis is a set of paths that cover all the edges
    – KiririIG
    Commented Jan 19, 2019 at 18:16
  • That is probably a misunderstanding. If your goal is to cover the edges, you are trying to achieve branch coverage. To achieve branch coverage your test cases will typically only need to cover a subset of all possible paths. In contrast, to achieve path coverage, you need one test case per path, that is, not only a subset of paths.
    – Dirk Herrmann
    Commented Jan 20, 2019 at 20:01
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