/* A simple unit testing framework for C
 *
 * This is a simple testing framework.
 * Look at test_this_framework.h for an example test definition.
 *
 * $Author: $
 * $Revision: $
 */
#ifndef  _CUTER_H
#define  _CUTER_H

#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>

/* Utilities exposed to the test definitions */
/* XXX: make this less dumb. Integrate better in reporting */
#ifndef CUTER_LOG_STREAM
#define CUTER_LOG_STREAM stderr
#endif

#ifndef CUTER_LOG_ENABLED
#define CUTER_LOG_ENABLED 1
#endif

#define LOG(fmt, ...) { \
  if (CUTER_LOG_ENABLED) \
    fprintf(CUTER_LOG_STREAM, "%s:%d:%s:" fmt "\n", \
            __FILE__, __LINE__, _name, ##__VA_ARGS__); \
}

#define TEST_OK 0
#define TEST_FAIL 1
#define ASSERT(test, msg) { \
  if (!(test)) { \
    LOG("(%s): %s", #test, msg); \
    return TEST_FAIL; \
    } \
}


/* Bookkeeping for test code generation */
struct cuter_list_head {
  struct cuter_list_head *next, *prev;
};

struct test_t {
  const char *name;
  /* 0 == success */
  signed int (*fn)(const char *_name);
  struct cuter_list_head node;
};

#define START_TEST(test_name) \
  static signed int test_name(const char *_name); \
  static struct test_t _##test_name##_object = { name: #test_name, fn: &test_name }; \
  void __attribute__((constructor)) __attribute__((visibility ("hidden"))) _register_##test_name(void) { \
    cuter_register_test(&_##test_name##_object); \
  } \
  static signed int test_name(const char *_name) {
#define END_TEST }

#define STANDALONE \
  int main(int argc, char **argv) { return cuter_driver(argc, argv); }

void cuter_register_test(struct test_t *test);
int cuter_driver(int argc, char **argv);

#endif  /* _CUTER_H */