nu unit

/* nu_unit.h : based on minunit */
#define nu_assert(exp) do { if (!(exp)) return #exp; } while (0)
#define nu_run_test(test) do { \
   const char *mesg = test(); nu_tests_run++; \
   if (mesg) printf("[failed] " #test " : %s\n", mesg); \
   else nu_tests_ok++; \
 } while (0)
#define nu_result() (nu_tests_run - nu_tests_ok)
extern int nu_tests_run, nu_tests_ok;

/* example.c */
#include <stdio.h>
#include "nu_unit.h"

int nu_tests_run, nu_tests_ok;

int foo = 7;
int bar = 4;

static char *
t01()
{
   nu_assert(foo == 7);
   return NULL;
}

static char *
t02()
{
   nu_assert(bar == 5);
   return NULL;
}

static void
all()
{
   nu_run_test(t01);
   nu_run_test(t02);
}

int
main(int argc, char **argv)
{
   all();

   if (nu_result())
      printf("[\033[31mFAILED\033[0m] %d passed / ", nu_tests_ok);
   else
      printf("[\033[32m  OK  \033[0m] ALL TEST PASSED : ");

   printf("%d total\n", nu_tests_run);

   return !!nu_result();
}

% ./example
[failed] t02 : bar == 5
[FAILED] 1 passed / 2 total