/***********************************************************************
 * cu_tester.c
 *
 *        Testing harness for PgSQL PointClouds
 *
 * Portions Copyright (c) 2012, OpenGeo
 *
 ***********************************************************************/

#include "cu_tester.h"
#include "CUnit/Basic.h"
#include <stdio.h>
#include <string.h>

/* Contains the most recent error message generated by rterror. */
static char cu_error_msg[MAX_CUNIT_MSG_LENGTH + 1];

/* ADD YOUR SUITE HERE (1 of 2) */
extern CU_SuiteInfo schema_suite;
extern CU_SuiteInfo patch_suite;
extern CU_SuiteInfo point_suite;
extern CU_SuiteInfo bytes_suite;
extern CU_SuiteInfo lazperf_suite;
extern CU_SuiteInfo sort_suite;
extern CU_SuiteInfo util_suite;

/**
 * CUnit error handler
 * Log message in a global var instead of printing in stdout/stderr
 *
 * CAUTION: Not stop execution on pcerror case !!!
 */
static void cu_message_handler(const char *fmt, va_list ap)
{
  vsnprintf(cu_error_msg, MAX_CUNIT_MSG_LENGTH - 1, fmt, ap);
  cu_error_msg[MAX_CUNIT_MSG_LENGTH - 1] = '\0';
  va_end(ap);
}

void cu_error_msg_reset() { memset(cu_error_msg, '\0', MAX_CUNIT_MSG_LENGTH); }

/*
** The main() function for setting up and running the tests.
** Returns a CUE_SUCCESS on successful running, another
** CUnit error code on failure.
*/
int main(int argc, char *argv[])
{
  /* ADD YOUR SUITE HERE (2 of 2) */
  CU_SuiteInfo suites[] = {schema_suite, patch_suite,       point_suite,
                           bytes_suite,  lazperf_suite,     sort_suite,
                           util_suite,   CU_SUITE_INFO_NULL};

  int index;
  char *suite_name;
  CU_pSuite suite_to_run;
  char *test_name;
  CU_pTest test_to_run;
  CU_ErrorCode errCode = 0;
  CU_pTestRegistry registry;
  int num_run;
  int num_failed;

  /* Set up to use the system memory management / logging */
  pc_install_default_handlers();

  pc_set_handlers(0, 0, 0, cu_message_handler, cu_message_handler,
                  cu_message_handler);

  /* initialize the CUnit test registry */
  if (CUE_SUCCESS != CU_initialize_registry())
  {
    errCode = CU_get_error();
    printf("    Error attempting to initialize registry: %d.  See CUError.h "
           "for error code list.\n",
           errCode);
    return errCode;
  }

  /* Register all the test suites. */
  if (CUE_SUCCESS != CU_register_suites(suites))
  {
    errCode = CU_get_error();
    printf("    Error attempting to register test suites: %d.  See CUError.h "
           "for error code list.\n",
           errCode);
    return errCode;
  }

  /* Run all tests using the CUnit Basic interface */
  CU_basic_set_mode(CU_BRM_VERBOSE);
  if (argc <= 1)
  {
    errCode = CU_basic_run_tests();
  }
  else
  {
    /* NOTE: The cunit functions used here (CU_get_registry,
     * CU_get_suite_by_name, and CU_get_test_by_name) are listed with the
     * following warning: "Internal CUnit system functions.  Should not be
     * routinely called by users." However, there didn't seem to be any
     * other way to get tests by name, so we're calling them. */
    registry = CU_get_registry();
    for (index = 1; index < argc; index++)
    {
      suite_name = argv[index];
      test_name = NULL;
      suite_to_run = CU_get_suite_by_name(suite_name, registry);
      if (NULL == suite_to_run)
      {
        /* See if it's a test name instead of a suite name. */
        suite_to_run = registry->pSuite;
        while (suite_to_run != NULL)
        {
          test_to_run = CU_get_test_by_name(suite_name, suite_to_run);
          if (test_to_run != NULL)
          {
            /* It was a test name. */
            test_name = suite_name;
            suite_name = suite_to_run->pName;
            break;
          }
          suite_to_run = suite_to_run->pNext;
        }
      }
      if (suite_to_run == NULL)
      {
        printf("\n'%s' does not appear to be either a suite name or a "
               "test "
               "name.\n\n",
               suite_name);
      }
      else
      {
        if (test_name != NULL)
        {
          /* Run only this test. */
          printf("\nRunning test '%s' in suite '%s'.\n", test_name, suite_name);
          /* This should be CU_basic_run_test, but that method is
           * broken, see:
           *     https://sourceforge.net/tracker/?func=detail&aid=2851925&group_id=32992&atid=407088
           * This one doesn't output anything for success, so we have
           * to do it manually. */
          errCode = CU_run_test(suite_to_run, test_to_run);
          if (errCode != CUE_SUCCESS)
          {
            printf("    Error attempting to run tests: %d.  See "
                   "CUError.h for "
                   "error code list.\n",
                   errCode);
          }
          else
          {
            num_run = CU_get_number_of_asserts();
            num_failed = CU_get_number_of_failures();
            printf("\n    %s - asserts - %3d passed, %3d failed, "
                   "%3d total.\n\n",
                   (0 == num_failed ? "PASSED" : "FAILED"),
                   (num_run - num_failed), num_failed, num_run);
          }
        }
        else
        {
          /* Run all the tests in the suite. */
          printf("\nRunning all tests in suite '%s'.\n", suite_name);
          /* This should be CU_basic_run_suite, but that method is
           * broken, see:
           *     https://sourceforge.net/tracker/?func=detail&aid=2851925&group_id=32992&atid=407088
           * This one doesn't output anything for success, so we have
           * to do it manually. */
          errCode = CU_run_suite(suite_to_run);
          if (errCode != CUE_SUCCESS)
          {
            printf("    Error attempting to run tests: %d.  See "
                   "CUError.h for "
                   "error code list.\n",
                   errCode);
          }
          else
          {
            num_run = CU_get_number_of_tests_run();
            num_failed = CU_get_number_of_tests_failed();
            printf("\n    %s -   tests - %3d passed, %3d failed, "
                   "%3d total.\n",
                   (0 == num_failed ? "PASSED" : "FAILED"),
                   (num_run - num_failed), num_failed, num_run);
            num_run = CU_get_number_of_asserts();
            num_failed = CU_get_number_of_failures();
            printf("           - asserts - %3d passed, %3d failed, "
                   "%3d total.\n\n",
                   (num_run - num_failed), num_failed, num_run);
          }
        }
      }
    }
    /* Presumably if the CU_basic_run_[test|suite] functions worked, we
     * wouldn't have to do this. */
    CU_basic_show_failures(CU_get_failure_list());
    printf("\n\n"); /* basic_show_failures leaves off line breaks. */
  }
  num_failed = CU_get_number_of_failures();
  CU_cleanup_registry();
  return num_failed;
}

/* UTILITY ************************************************************/

char *file_to_str(const char *fname)
{
  FILE *fr;
  char fullpath[512];
  size_t lnsz;
  size_t sz = 8192;
  char *str = pcalloc(sz);
  char *ptr = str;
  size_t MAXLINELEN = 8192;
  char buf[MAXLINELEN];

  snprintf(fullpath, 512, "%s/lib/cunit/%s", PROJECT_SOURCE_DIR, fname);
  fr = fopen(fullpath, "rt");

  while (fr && fgets(buf, MAXLINELEN, fr) != NULL)
  {
    if (buf[0] == '\0')
      continue;
    lnsz = strlen(buf);
    if (ptr - str + lnsz > sz)
    {
      size_t bsz = ptr - str;
      sz *= 2;
      str = pcrealloc(str, sz);
      ptr = str + bsz;
    }
    memcpy(ptr, buf, lnsz);
    ptr += lnsz;
  }

  *ptr = '\0';
  fclose(fr);

  return str;
}