t_link revision 170809 
1#!/bin/sh
2#
3# $NetBSD: t_link,v 1.5 2006/11/09 16:20:06 jmmv Exp $
4#
5# Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
6# All rights reserved.
7#
8# This code is derived from software contributed to The NetBSD Foundation
9# by Julio M. Merino Vidal, developed as part of Google's Summer of Code
10# 2005 program.
11#
12# Redistribution and use in source and binary forms, with or without
13# modification, are permitted provided that the following conditions
14# are met:
15# 1. Redistributions of source code must retain the above copyright
16#    notice, this list of conditions and the following disclaimer.
17# 2. Redistributions in binary form must reproduce the above copyright
18#    notice, this list of conditions and the following disclaimer in the
19#    documentation and/or other materials provided with the distribution.
20# 3. All advertising materials mentioning features or use of this software
21#    must display the following acknowledgement:
22#        This product includes software developed by the NetBSD
23#        Foundation, Inc. and its contributors.
24# 4. Neither the name of The NetBSD Foundation nor the names of its
25#    contributors may be used to endorse or promote products derived
26#    from this software without specific prior written permission.
27#
28# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38# POSSIBILITY OF SUCH DAMAGE.
39#
40# $FreeBSD: head/tools/regression/tmpfs/t_link 170809 2007-06-16 02:04:44Z delphij $
41#
42
43#
44# Verifies that the link operation works.
45#
46
47test_run() {
48	test_mount
49
50	test_name "Link operation works"
51	touch a || die
52	touch z || die
53	eval $(stat -s a | sed -e 's|st_|sta_|g')
54	eval $(stat -s z | sed -e 's|st_|stz_|g')
55	test ${sta_ino} != ${stz_ino} || die
56	test ${sta_nlink} -eq 1 || die
57	ln a b || die
58	test_name "Link count is correct after links are created"
59	eval $(stat -s a | sed -e 's|st_|sta_|g')
60	eval $(stat -s b | sed -e 's|st_|stb_|g')
61	test ${sta_ino} = ${stb_ino} || die
62	test ${sta_nlink} -eq 2 || die
63	test ${stb_nlink} -eq 2 || die
64	test_name "Link count is correct after links are deleted"
65	rm a || die
66	eval $(stat -s b | sed -e 's|st_|stb_|g')
67	test ${stb_nlink} -eq 1 || die
68	rm b || die
69
70	test_name "Link operation works in subdirectories"
71	touch a || die
72	mkdir c || die
73	ln a c/b || die
74	test_name "Link count is correct after links are created"
75	eval $(stat -s a | sed -e 's|st_|sta_|g')
76	eval $(stat -s c/b | sed -e 's|st_|stb_|g')
77	test ${sta_ino} = ${stb_ino} || die
78	test ${sta_nlink} -eq 2 || die
79	test ${stb_nlink} -eq 2 || die
80	test_name "Link count is correct after links are deleted"
81	rm a || die
82	eval $(stat -s c/b | sed -e 's|st_|stb_|g')
83	test ${stb_nlink} -eq 1 || die
84	rm c/b || die
85	rmdir c || die
86
87	mkdir dir || die
88	touch dir/a || die
89	echo 'ln dir/a dir/b' | kqueue_monitor 2 dir dir/a || die
90	test_name "Creating a link raises NOTE_LINK on the source file"
91	kqueue_check dir/a NOTE_LINK || die
92	test_name "Creating a link raises NOTE_WRITE on the parent directory"
93	kqueue_check dir NOTE_WRITE || die
94
95	echo 'rm dir/a' | kqueue_monitor 2 dir dir/b || die
96	# XXX According to the (short) kqueue(2) documentation, the following
97	# should raise a NOTE_LINK but FFS raises a NOTE_DELETE...
98	test_name "Deleting a link raises NOTE_DELETE on one other link"
99	kqueue_check dir/b NOTE_DELETE || die
100	test_name "Deleting a link raises NOTE_WRITE on the parent directory"
101	kqueue_check dir NOTE_WRITE || die
102	rm dir/b || die
103	rmdir dir || die
104
105	test_unmount
106}
107
108. ${SUBRDIR}/h_funcs.subr
109