| /*- |
| * Copyright (c) 2003-2007 Tim Kientzle |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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" |
| __FBSDID("$FreeBSD: src/usr.bin/tar/test/test_help.c,v 1.2 2008/05/26 17:10:10 kientzle Exp $"); |
| |
| /* |
| * Test that "--help", "-h", and "-W help" options all work and |
| * generate reasonable output. |
| */ |
| |
| static int |
| in_first_line(const char *p, const char *substring) |
| { |
| size_t l = strlen(substring); |
| |
| while (*p != '\0' && *p != '\n') { |
| if (memcmp(p, substring, l) == 0) |
| return (1); |
| ++p; |
| } |
| return (0); |
| } |
| |
| DEFINE_TEST(test_help) |
| { |
| int r; |
| char *p; |
| size_t plen; |
| |
| /* Exercise --help option. */ |
| r = systemf("%s --help >help.stdout 2>help.stderr", testprog); |
| assertEqualInt(r, 0); |
| failure("--help should generate nothing to stderr."); |
| assertEmptyFile("help.stderr"); |
| /* Help message should start with name of program. */ |
| p = slurpfile(&plen, "help.stdout"); |
| failure("Help output should be long enough."); |
| assert(plen >= 6); |
| failure("First line of help output should contain 'bsdtar': %s", p); |
| assert(in_first_line(p, "bsdtar")); |
| /* |
| * TODO: Extend this check to further verify that --help output |
| * looks approximately right. |
| */ |
| free(p); |
| |
| /* -h option should generate the same output. */ |
| r = systemf("%s -h >h.stdout 2>h.stderr", testprog); |
| assertEqualInt(r, 0); |
| failure("-h should generate nothing to stderr."); |
| assertEmptyFile("h.stderr"); |
| failure("stdout should be same for -h and --help"); |
| assertEqualFile("h.stdout", "help.stdout"); |
| |
| /* -W help should be another synonym. */ |
| r = systemf("%s -W help >Whelp.stdout 2>Whelp.stderr", testprog); |
| assertEqualInt(r, 0); |
| failure("-W help should generate nothing to stderr."); |
| assertEmptyFile("Whelp.stderr"); |
| failure("stdout should be same for -W help and --help"); |
| assertEqualFile("Whelp.stdout", "help.stdout"); |
| } |