84 lines
3 KiB
C
84 lines
3 KiB
C
/*-
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* Copyright (c) 2003-2007 Tim Kientzle
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "test.h"
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__FBSDID("$FreeBSD: src/usr.bin/tar/test/test_help.c,v 1.2 2008/05/26 17:10:10 kientzle Exp $");
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/*
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* Test that "--help", "-h", and "-W help" options all work and
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* generate reasonable output.
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*/
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static int
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in_first_line(const char *p, const char *substring)
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{
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size_t l = strlen(substring);
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while (*p != '\0' && *p != '\n') {
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if (memcmp(p, substring, l) == 0)
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return (1);
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++p;
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}
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return (0);
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}
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DEFINE_TEST(test_help)
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{
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int r;
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char *p;
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size_t plen;
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/* Exercise --help option. */
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r = systemf("%s --help >help.stdout 2>help.stderr", testprog);
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assertEqualInt(r, 0);
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failure("--help should generate nothing to stderr.");
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assertEmptyFile("help.stderr");
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/* Help message should start with name of program. */
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p = slurpfile(&plen, "help.stdout");
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failure("Help output should be long enough.");
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assert(plen >= 6);
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failure("First line of help output should contain 'bsdtar': %s", p);
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assert(in_first_line(p, "bsdtar"));
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/*
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* TODO: Extend this check to further verify that --help output
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* looks approximately right.
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*/
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free(p);
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/* -h option should generate the same output. */
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r = systemf("%s -h >h.stdout 2>h.stderr", testprog);
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assertEqualInt(r, 0);
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failure("-h should generate nothing to stderr.");
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assertEmptyFile("h.stderr");
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failure("stdout should be same for -h and --help");
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assertEqualFile("h.stdout", "help.stdout");
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/* -W help should be another synonym. */
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r = systemf("%s -W help >Whelp.stdout 2>Whelp.stderr", testprog);
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assertEqualInt(r, 0);
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failure("-W help should generate nothing to stderr.");
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assertEmptyFile("Whelp.stderr");
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failure("stdout should be same for -W help and --help");
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assertEqualFile("Whelp.stdout", "help.stdout");
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}
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