/usr.bin/cpio/test/test_option_help.c

https://bitbucket.org/freebsd/freebsd-head/ · C · 84 lines · 41 code · 7 blank · 36 comment · 6 complexity · 512749c0df2a3db09f531b067ae0d169 MD5 · raw file

  1. /*-
  2. * Copyright (c) 2003-2007 Tim Kientzle
  3. * All rights reserved.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions
  7. * are met:
  8. * 1. Redistributions of source code must retain the above copyright
  9. * notice, this list of conditions and the following disclaimer.
  10. * 2. Redistributions in binary form must reproduce the above copyright
  11. * notice, this list of conditions and the following disclaimer in the
  12. * documentation and/or other materials provided with the distribution.
  13. *
  14. * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
  15. * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  16. * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17. * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
  18. * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  21. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23. * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24. */
  25. #include "test.h"
  26. __FBSDID("$FreeBSD$");
  27. /*
  28. * Test that "--help", "-h", and "-W help" options all work and
  29. * generate reasonable output.
  30. */
  31. static int
  32. in_first_line(const char *p, const char *substring)
  33. {
  34. size_t l = strlen(substring);
  35. while (*p != '\0' && *p != '\n') {
  36. if (memcmp(p, substring, l) == 0)
  37. return (1);
  38. ++p;
  39. }
  40. return (0);
  41. }
  42. DEFINE_TEST(test_option_help)
  43. {
  44. int r;
  45. char *p;
  46. size_t plen;
  47. /* Exercise --help option. */
  48. r = systemf("%s --help >help.stdout 2>help.stderr", testprog);
  49. assertEqualInt(r, 0);
  50. failure("--help should generate nothing to stderr.");
  51. assertEmptyFile("help.stderr");
  52. /* Help message should start with name of program. */
  53. p = slurpfile(&plen, "help.stdout");
  54. failure("Help output should be long enough.");
  55. assert(plen >= 7);
  56. failure("First line of help output should contain string 'bsdcpio'");
  57. assert(in_first_line(p, "bsdcpio"));
  58. /*
  59. * TODO: Extend this check to further verify that --help output
  60. * looks approximately right.
  61. */
  62. free(p);
  63. /* -h option should generate the same output. */
  64. r = systemf("%s -h >h.stdout 2>h.stderr", testprog);
  65. assertEqualInt(r, 0);
  66. failure("-h should generate nothing to stderr.");
  67. assertEmptyFile("h.stderr");
  68. failure("stdout should be same for -h and --help");
  69. assertEqualFile("h.stdout", "help.stdout");
  70. /* -W help should be another synonym. */
  71. r = systemf("%s -W help >Whelp.stdout 2>Whelp.stderr", testprog);
  72. assertEqualInt(r, 0);
  73. failure("-W help should generate nothing to stderr.");
  74. assertEmptyFile("Whelp.stderr");
  75. failure("stdout should be same for -W help and --help");
  76. assertEqualFile("Whelp.stdout", "help.stdout");
  77. }