cp_test.sh revision 260037 
1# $FreeBSD: stable/10/share/examples/tests/tests/plain/cp_test.sh 260037 2013-12-29 12:30:06Z jmmv $
2#
3# Copyright 2013 Google Inc.
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions are
8# met:
9#
10# * Redistributions of source code must retain the above copyright
11#   notice, this list of conditions and the following disclaimer.
12# * Redistributions in binary form must reproduce the above copyright
13#   notice, this list of conditions and the following disclaimer in the
14#   documentation and/or other materials provided with the distribution.
15# * Neither the name of Google Inc. nor the names of its contributors
16#   may be used to endorse or promote products derived from this software
17#   without specific prior written permission.
18#
19# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31#
32# INTRODUCTION
33#
34# This plain test program mimics the structure and contents of its
35# ATF-based counterpart.  It attempts to represent various test cases
36# in different separate functions and just calls them all from main.
37#
38# In reality, plain test programs can be much simpler.  All they have
39# to do is return 0 on success and non-0 otherwise.
40#
41
42set -e
43
44# Prints an error message and exits.
45err() {
46	echo "${@}" 1>&2
47	exit 1
48}
49
50# Auxiliary function to compare two files for equality.
51verify_copy() {
52	if ! cmp -s "${1}" "${2}"; then
53		diff -u "${1}" "${2}"
54		err "${1} and ${2} differ, but they should be equal"
55	fi
56}
57
58simple_test() {
59	echo 'File 1' >file1
60	cp file1 file2 || err "cp failed"
61	verify_copy file1 file2
62}
63
64force_test() {
65	echo 'File 1' >file1
66	echo 'File 2' >file2
67	chmod 400 file2
68	cp -f file1 file2 || err "cp failed"
69	verify_copy file1 file2
70}
71
72# If you have read the cp_test.sh counterpart in the atf/ directory, you
73# may think that the sequencing of tests below and the exposed behavior
74# to the user is very similar.  But you'd be wrong.
75#
76# There are two major differences with this and the ATF version.  The
77# first is that the code below has no provisions to detect failures in
78# one test and continue running the other tests: the first failure
79# causes the whole test program to exit.  The second is that this
80# particular "main" has no arguments: without ATF, all test programs may
81# expose a different command-line interface, and this is an issue for
82# consistency purposes.
83simple_test
84force_test
85