1228753Smm/*-
2228753Smm * Copyright (c) 2003-2007 Tim Kientzle
3228753Smm * All rights reserved.
4228753Smm *
5228753Smm * Redistribution and use in source and binary forms, with or without
6228753Smm * modification, are permitted provided that the following conditions
7228753Smm * are met:
8228753Smm * 1. Redistributions of source code must retain the above copyright
9228753Smm *    notice, this list of conditions and the following disclaimer.
10228753Smm * 2. Redistributions in binary form must reproduce the above copyright
11228753Smm *    notice, this list of conditions and the following disclaimer in the
12228753Smm *    documentation and/or other materials provided with the distribution.
13228753Smm *
14228753Smm * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
15228753Smm * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16228753Smm * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17228753Smm * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
18228753Smm * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19228753Smm * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20228753Smm * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21228753Smm * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22228753Smm * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23228753Smm * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24228753Smm */
25228753Smm#include "test.h"
26228753Smm__FBSDID("$FreeBSD$");
27228753Smm
28228753Smm/*
29228753Smm * Test that "--help", "-h", and "-W help" options all work and
30228753Smm * generate reasonable output.
31228753Smm */
32228753Smm
33228753Smmstatic int
34228753Smmin_first_line(const char *p, const char *substring)
35228753Smm{
36228753Smm	size_t l = strlen(substring);
37228753Smm
38228753Smm	while (*p != '\0' && *p != '\n') {
39228753Smm		if (memcmp(p, substring, l) == 0)
40228753Smm			return (1);
41228753Smm		++p;
42228753Smm	}
43228753Smm	return (0);
44228753Smm}
45228753Smm
46228753SmmDEFINE_TEST(test_option_help)
47228753Smm{
48228753Smm	int r;
49228753Smm	char *p;
50228753Smm	size_t plen;
51228753Smm
52228753Smm	/* Exercise --help option. */
53228753Smm	r = systemf("%s --help >help.stdout 2>help.stderr", testprog);
54228753Smm	assertEqualInt(r, 0);
55228753Smm	failure("--help should generate nothing to stderr.");
56228753Smm	assertEmptyFile("help.stderr");
57228753Smm	/* Help message should start with name of program. */
58228753Smm	p = slurpfile(&plen, "help.stdout");
59228753Smm	failure("Help output should be long enough.");
60228753Smm	assert(plen >= 7);
61228753Smm	failure("First line of help output should contain string 'bsdcpio'");
62228753Smm	assert(in_first_line(p, "bsdcpio"));
63228753Smm	/*
64228753Smm	 * TODO: Extend this check to further verify that --help output
65228753Smm	 * looks approximately right.
66228753Smm	 */
67228753Smm	free(p);
68228753Smm
69228753Smm	/* -h option should generate the same output. */
70228753Smm	r = systemf("%s -h >h.stdout 2>h.stderr", testprog);
71228753Smm	assertEqualInt(r, 0);
72228753Smm	failure("-h should generate nothing to stderr.");
73228753Smm	assertEmptyFile("h.stderr");
74228753Smm	failure("stdout should be same for -h and --help");
75228753Smm	assertEqualFile("h.stdout", "help.stdout");
76228753Smm
77228753Smm	/* -W help should be another synonym. */
78228753Smm	r = systemf("%s -W help >Whelp.stdout 2>Whelp.stderr", testprog);
79228753Smm	assertEqualInt(r, 0);
80228753Smm	failure("-W help should generate nothing to stderr.");
81228753Smm	assertEmptyFile("Whelp.stderr");
82228753Smm	failure("stdout should be same for -W help and --help");
83228753Smm	assertEqualFile("Whelp.stdout", "help.stdout");
84228753Smm}
85