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// Copyright 2014, ARM Limited
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//   * Neither the name of ARM Limited nor the names of its contributors may be
//     used to endorse or promote products derived from this software without
//     specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "test.h"

#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>

static void usage(char const * prog_name) {
  printf("Usage: %s [options]\n", prog_name);
  printf("  --help, -h\n");
  printf("          Print this help text.\n");
  printf("  --list, -l\n");
  printf("          List available tests.\n");
  printf("  --test=<test>\n");
  printf("  -t <test>\n");
  printf("          Run the specified test. Only one test may be specified\n");
}

int main(int argc, char** argv) {
  // Keep stdio unbuffered so that assertion output is in the right order in
  // relation to stdout.
  setbuf(stdout, NULL);
  setbuf(stderr, NULL);

  char * test = NULL;
  int test_count = 0;
  int opt_help = 0;
  int opt_list = 0;

  char const * shortopts = "hlt:";
  struct option longopts[] = {
    {"help", no_argument, NULL, 'h'},
    {"list", no_argument, NULL, 'l'},
    {"test", required_argument, NULL, 't'},
    {NULL, 0, NULL, 0}
  };

  test_init();

  int index;
  while (1) {
    int c = getopt_long(argc, argv, shortopts, longopts, &index);

    if (c == -1) {
      // The end of the options.
      break;
    } else if (c == 0) {
      // A longopt: Make it look like a shortopt so we can handle them together.
      c = longopts[index].val;
    }

    // Treat everything else as a shortopt.
    if (c == 'h') {
      opt_help = 1;
    } else if (c == 'l') {
      opt_list = 1;
    } else if (c == 't') {   // --test, -t
      test_count++;
      test = optarg;
    }
  }

  if (opt_help) {
    usage(argv[0]);
    return EXIT_SUCCESS;
  }

  if (opt_list) {
    test_print_list();
    return EXIT_SUCCESS;
  }

  if (test_count == 0) {
    printf("Error: No test specified.\n");
    usage(argv[0]);
    return EXIT_FAILURE;
  } else if (test_count > 1) {
    printf("Error: Multiple tests specified.\n");
    usage(argv[0]);
    return EXIT_FAILURE;
  }

  if (test_run_by_name(test) == -1) {
    printf("Test %s does not exist.\n", test);
    return EXIT_FAILURE;
  }

  printf("Test '%s' PASSED.\n", test);
  return EXIT_SUCCESS;
}