1*caf54c4fSMartin Matuska /*- 2*caf54c4fSMartin Matuska * Copyright (c) 2003-2007 Tim Kientzle 3*caf54c4fSMartin Matuska * All rights reserved. 4*caf54c4fSMartin Matuska * 5*caf54c4fSMartin Matuska * Redistribution and use in source and binary forms, with or without 6*caf54c4fSMartin Matuska * modification, are permitted provided that the following conditions 7*caf54c4fSMartin Matuska * are met: 8*caf54c4fSMartin Matuska * 1. Redistributions of source code must retain the above copyright 9*caf54c4fSMartin Matuska * notice, this list of conditions and the following disclaimer. 10*caf54c4fSMartin Matuska * 2. Redistributions in binary form must reproduce the above copyright 11*caf54c4fSMartin Matuska * notice, this list of conditions and the following disclaimer in the 12*caf54c4fSMartin Matuska * documentation and/or other materials provided with the distribution. 13*caf54c4fSMartin Matuska * 14*caf54c4fSMartin Matuska * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 15*caf54c4fSMartin Matuska * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16*caf54c4fSMartin Matuska * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17*caf54c4fSMartin Matuska * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 18*caf54c4fSMartin Matuska * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19*caf54c4fSMartin Matuska * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20*caf54c4fSMartin Matuska * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21*caf54c4fSMartin Matuska * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22*caf54c4fSMartin Matuska * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23*caf54c4fSMartin Matuska * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24*caf54c4fSMartin Matuska */ 25*caf54c4fSMartin Matuska #include "test.h" 26*caf54c4fSMartin Matuska __FBSDID("$FreeBSD: src/usr.bin/tar/test/test_help.c,v 1.2 2008/05/26 17:10:10 kientzle Exp $"); 27*caf54c4fSMartin Matuska 28*caf54c4fSMartin Matuska /* 29*caf54c4fSMartin Matuska * Test that "--help", "-h", and "-W help" options all work and 30*caf54c4fSMartin Matuska * generate reasonable output. 31*caf54c4fSMartin Matuska */ 32*caf54c4fSMartin Matuska 33*caf54c4fSMartin Matuska static int 34*caf54c4fSMartin Matuska in_first_line(const char *p, const char *substring) 35*caf54c4fSMartin Matuska { 36*caf54c4fSMartin Matuska size_t l = strlen(substring); 37*caf54c4fSMartin Matuska 38*caf54c4fSMartin Matuska while (*p != '\0' && *p != '\n') { 39*caf54c4fSMartin Matuska if (memcmp(p, substring, l) == 0) 40*caf54c4fSMartin Matuska return (1); 41*caf54c4fSMartin Matuska ++p; 42*caf54c4fSMartin Matuska } 43*caf54c4fSMartin Matuska return (0); 44*caf54c4fSMartin Matuska } 45*caf54c4fSMartin Matuska 46*caf54c4fSMartin Matuska DEFINE_TEST(test_help) 47*caf54c4fSMartin Matuska { 48*caf54c4fSMartin Matuska int r; 49*caf54c4fSMartin Matuska char *p; 50*caf54c4fSMartin Matuska size_t plen; 51*caf54c4fSMartin Matuska 52*caf54c4fSMartin Matuska /* Exercise --help option. */ 53*caf54c4fSMartin Matuska r = systemf("%s --help >help.stdout 2>help.stderr", testprog); 54*caf54c4fSMartin Matuska assertEqualInt(r, 0); 55*caf54c4fSMartin Matuska failure("--help should generate nothing to stderr."); 56*caf54c4fSMartin Matuska assertEmptyFile("help.stderr"); 57*caf54c4fSMartin Matuska /* Help message should start with name of program. */ 58*caf54c4fSMartin Matuska p = slurpfile(&plen, "help.stdout"); 59*caf54c4fSMartin Matuska failure("Help output should be long enough."); 60*caf54c4fSMartin Matuska assert(plen >= 6); 61*caf54c4fSMartin Matuska failure("First line of help output should contain 'bsdtar': %s", p); 62*caf54c4fSMartin Matuska assert(in_first_line(p, "bsdtar")); 63*caf54c4fSMartin Matuska /* 64*caf54c4fSMartin Matuska * TODO: Extend this check to further verify that --help output 65*caf54c4fSMartin Matuska * looks approximately right. 66*caf54c4fSMartin Matuska */ 67*caf54c4fSMartin Matuska free(p); 68*caf54c4fSMartin Matuska 69*caf54c4fSMartin Matuska /* -h option should generate the same output. */ 70*caf54c4fSMartin Matuska r = systemf("%s -h >h.stdout 2>h.stderr", testprog); 71*caf54c4fSMartin Matuska assertEqualInt(r, 0); 72*caf54c4fSMartin Matuska failure("-h should generate nothing to stderr."); 73*caf54c4fSMartin Matuska assertEmptyFile("h.stderr"); 74*caf54c4fSMartin Matuska failure("stdout should be same for -h and --help"); 75*caf54c4fSMartin Matuska assertEqualFile("h.stdout", "help.stdout"); 76*caf54c4fSMartin Matuska 77*caf54c4fSMartin Matuska /* -W help should be another synonym. */ 78*caf54c4fSMartin Matuska r = systemf("%s -W help >Whelp.stdout 2>Whelp.stderr", testprog); 79*caf54c4fSMartin Matuska assertEqualInt(r, 0); 80*caf54c4fSMartin Matuska failure("-W help should generate nothing to stderr."); 81*caf54c4fSMartin Matuska assertEmptyFile("Whelp.stderr"); 82*caf54c4fSMartin Matuska failure("stdout should be same for -W help and --help"); 83*caf54c4fSMartin Matuska assertEqualFile("Whelp.stdout", "help.stdout"); 84*caf54c4fSMartin Matuska } 85