#ifndef LILY_TEST_H
#define LILY_TEST_H

#include <stddef.h>

/* gives a string like 'some/filename:xxx' */
#define STR_IMP(x) #x
#define STR(x) STR_IMP(x)
/* define SOURCE_PATH_SIZE to strip away the
   leading parts of the full compilation path */
#ifndef SOURCE_PATH_SIZE
#define LILY_LOCATION "" __FILE__ ":" STR(__LINE__)
#else
#define LILY_LOCATION (("" __FILE__ ":" STR(__LINE__)) + SOURCE_PATH_SIZE)
#endif

struct lily_test_result_t {
   int error;
   const char *message;
   const char *location;
   void *data;
};

typedef struct lily_test_result_t lily_test;
#define LILY_SUCCESS (struct lily_test_result_t){ 0, NULL, NULL, NULL }

// assertions
#define LILY_NO_ERROR 0
#define LILY_NULL_DATA 1
#define LILY_INT_DATA 2
#define LILY_STRING_DATA 3

#define lily_assert_msg(statement, code, message, data) do {	\
      if(!(statement)) {					\
	 return (struct lily_test_result_t){			\
	    (code), (message), LILY_LOCATION, (data)		\
	       };						\
      }								\
   } while(0)

#define lily_assert_equal(a, b)			\
   lily_assert_msg(a == b, LILY_NULL_DATA, #a " is not equal to " #b, NULL)

#endif