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 /* 29 * Test that "--help", "-h", and "-W help" options all work and 30 * generate reasonable output. 31 */ 32 33 static int 34 in_first_line(const char *p, const char *substring) 35 { 36 size_t l = strlen(substring); 37 38 while (*p != '\0' && *p != '\n') { 39 if (memcmp(p, substring, l) == 0) 40 return (1); 41 ++p; 42 } 43 return (0); 44 } 45 46 DEFINE_TEST(test_option_help) 47 { 48 int r; 49 char *p; 50 size_t plen; 51 52 /* Exercise --help option. */ 53 r = systemf("%s --help >help.stdout 2>help.stderr", testprog); 54 assertEqualInt(r, 0); 55 failure("--help should generate nothing to stderr."); 56 assertEmptyFile("help.stderr"); 57 /* Help message should start with name of program. */ 58 p = slurpfile(&plen, "help.stdout"); 59 failure("Help output should be long enough."); 60 assert(plen >= 7); 61 failure("First line of help output should contain string 'bsdcpio'"); 62 assert(in_first_line(p, "bsdcpio")); 63 /* 64 * TODO: Extend this check to further verify that --help output 65 * looks approximately right. 66 */ 67 free(p); 68 69 /* -h option should generate the same output. */ 70 r = systemf("%s -h >h.stdout 2>h.stderr", testprog); 71 assertEqualInt(r, 0); 72 failure("-h should generate nothing to stderr."); 73 assertEmptyFile("h.stderr"); 74 failure("stdout should be same for -h and --help"); 75 assertEqualFile("h.stdout", "help.stdout"); 76 77 /* -W help should be another synonym. */ 78 r = systemf("%s -W help >Whelp.stdout 2>Whelp.stderr", testprog); 79 assertEqualInt(r, 0); 80 failure("-W help should generate nothing to stderr."); 81 assertEmptyFile("Whelp.stderr"); 82 failure("stdout should be same for -W help and --help"); 83 assertEqualFile("Whelp.stdout", "help.stdout"); 84 } 85