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diff --git a/doc/testscript.cli b/doc/testscript.cli index 88d6609..e928d74 100644 --- a/doc/testscript.cli +++ b/doc/testscript.cli @@ -1402,6 +1402,14 @@ that real-world usage will uncover much more interesting interactions that you would never have thought of yourself.To quote a famous physicist, \"\i{... the imagination of nature is far, far greater than the imagination of man.}\" +To expand on combination tests, don't confuse them with corner case tests. As +an example, say you have tests for feature A and B. Now you wonder what if for +some reason they don't work together. Note that you don't have a clear +understanding of why they might not work together; you just want to add one +more test, \i{for good measure}. We don't do that. To put it another way, for +each test you should have a clear understanding of what logic in the code you +are testing. + One approach that we found works well is to look at the changes you would like to commit and make sure you have a test that exercises each \i{logic branch}. It is also a good idea to keep testing in mind as you implement |