7.3. Guidelines for testable design
The following is a set of do’s and do not’s I’ve gathered and whose importance I’ve learned through repeated yak shaving.[9] They aren’t in any particular order, and none of them is a universal truth—just things to keep in mind so that you think twice before deciding to go against these guidelines.
9 Yak-shaving defined, http://en.wiktionary.org/wiki/yak_shaving.
With that disclaimer, let’s start with some guidelines that relate to what we talked about in the previous section.
7.3.1. Avoid complex private methods
There’s no easy way to test a private method. Therefore, you should strive to make it so that you don’t feel the need to test your private methods directly.
Note that I didn’t say you shouldn’t test ...
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