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/*-
* 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);
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);
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);
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");
}
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