minunit.h

/* minunit.h
 
From: http://www.jera.com/techinfo/jtns/jtn002.html
 
License: "You may use the code in this tech note for any purpose,
with the understanding that it comes with NO WARRANTY."
 
Note on why the macros are wrapped in a do..while statement:
http://www.eskimo.com/~scs/C-faq/q10.4.html
 
*/
 
/* mu_assert: If test is false, returns message.
 
Note that because this is a macro, it returns from whatever
function it is used in.
*/
 #define mu_assert(message, test) do { if (!(test)) return message; } while (0)
 
 
/* mu_run_test: Runs the given test function.
 
If the function returns a non-null message, mu_run_test returns
the same message.
 
*/
 #define mu_run_test(test) do { char *message = test(); tests_run++; \
                                if (message) return message; } while (0)
 
/* Note from Allen: I'm not sure why this is here.
   `tests_run` is only used in the testing module, and I
   don't see a reason it should be accessible from the
   unit under test.
 
extern int tests_run;
 
*/