xref: /freebsd/tools/regression/tmpfs/t_symlink (revision b1f9167f94059fd55c630891d359bcff987bd7eb)
1#!/bin/sh
2#
3# $NetBSD: t_symlink,v 1.6 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#
21# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31# POSSIBILITY OF SUCH DAMAGE.
32#
33# $FreeBSD$
34#
35
36#
37# Verifies that the symlink and readlink operations work.
38#
39
40test_run() {
41	test_mount
42
43	test_name "Creation of an empty file"
44	touch a || die
45	test_name "Creation of a symlink pointing to it"
46	ln -s a b || die
47	test_name "Symlink points to correct file"
48	[ $(md5 b | cut -d ' ' -f 4) = d41d8cd98f00b204e9800998ecf8427e ] || die
49
50	test_name "Changing original file"
51	echo foo >a || die
52	test_name "Symlink reflects the changes"
53	[ $(md5 b | cut -d ' ' -f 4) = d3b07384d113edec49eaa6238ad5ff00 ] || die
54
55	test_name "Creation of symlink to a known system file"
56	ln -s /bin/cp cp || die
57	test_name "Trying to see if it works"
58	./cp b c || die
59	[ -f c ] || die
60
61	test_name "Symlinking directories works"
62	mkdir d || die
63	[ -f d/foo ] && die
64	[ -f e/foo ] && die
65	ln -s d e || die
66	touch d/foo || die
67	[ -f d/foo ] || die
68	[ -f e/foo ] || die
69
70	mkdir dir || die
71	echo 'ln -s non-existent dir/a' | kqueue_monitor 1 dir || die
72	test_name "Creating a symlink raises NOTE_WRITE on the parent" \
73	    "directory"
74	kqueue_check dir NOTE_WRITE || die
75	rm dir/a || die
76	rmdir dir || die
77
78	test_unmount
79}
80
81. ${SUBRDIR}/h_funcs.subr
82