I was browsing Gemini when I came across a
reponse to my unit test
question:
Sean Conner poses this question.
The answer is actually more sensible in C than it was in Smalltalk: a
unit is a compilation unit. In C, it is a file.
Any changes to source will require changes to a file. Once a source file
is altered, it may screw something up in the resultant binary. Therefore,
there should be a unit test to check that the altered unit behaves as
expected.
…
The easiest way to think of it in C is: assume make's view of the
system.
Re: What is a unit
test
That is not a bad answer for C. In fact, it's probably not a bad answer
for several different languages. The only clarification I can see being made
is to only test non-static functions (functions that have visibility outside
the file they're defined in) and not have specific tests for static functions
(functions that only have visibility to code in the C file) to allow greater
flexibility in implemenation and prevent tests from breaking too often.
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