As applying unit-test to some C code, we run into a problem that some static function can not be called at the test file, without modifying the source code. Is there any simple or reasonable way to overcome this problem?
I have a test harness. In dire cases - like trying to test a static function, I use:
#include "code_under_test.c" ...test framework...
That is, I include the whole of the file containing the function under test in the test harness. It is a last resort - but it works.