1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
# Simple test harness infrastructurei for BusyBox
#
# Copyright 2005 by Rob Landley
#
# License is GPLv2, see LICENSE in the busybox tarball for full license text.
# This file defines two functions, "testing" and "optional"
# and a couple more...
# The following environment variables may be set to enable optional behavior
# in "testing":
# VERBOSE - Print the diff -u of each failed test case.
# DEBUG - Enable command tracing.
# SKIP - do not perform this test (this is set by "optional")
#
# The "testing" function takes five arguments:
# $1) Test description
# $2) Command(s) to run. May have pipes, redirects, etc
# $3) Expected result on stdout
# $4) Data to be written to file "input"
# $5) Data to be written to stdin
#
# The exit value of testing is the exit value of $2 it ran.
#
# The environment variable "FAILCOUNT" contains a cumulative total of the
# number of failed tests.
# The "optional" function is used to skip certain tests, ala:
# optional CONFIG_FEATURE_THINGY
#
# The "optional" function checks the environment variable "OPTIONFLAGS",
# which is either empty (in which case it always clears SKIP) or
# else contains a colon-separated list of features (in which case the function
# clears SKIP if the flag was found, or sets it to 1 if the flag was not found).
export FAILCOUNT=0
export SKIP=
# Helper for helpers. Oh my...
test x"$ECHO" != x"" || {
ECHO="echo"
test x"`echo -ne`" = x"" || {
# Compile and use a replacement 'echo' which understands -e -n
ECHO="$PWD/echo-ne"
test -x "$ECHO" || {
gcc -Os -o "$ECHO" ../scripts/echo.c || exit 1
}
}
export ECHO
}
# Helper functions
optional()
{
SKIP=
while test "$1"; do
if test x"${OPTIONFLAGS/*:$1:*/y}" != x"y"; then
SKIP=1
return
fi
shift
done
}
# The testing function
testing()
{
NAME="$1"
[ -n "$1" ] || NAME="$2"
if [ $# -ne 5 ]
then
echo "Test $NAME has wrong number of arguments (must be 5) ($# $*)" >&2
exit 1
fi
[ -z "$DEBUG" ] || set -x
if [ -n "$SKIP" ]
then
echo "SKIPPED: $NAME"
return 0
fi
$ECHO -ne "$3" > expected
$ECHO -ne "$4" > input
[ -z "$VERBOSE" ] || echo "echo -ne '$5' | $2"
$ECHO -ne "$5" | eval "$2" > actual
RETVAL=$?
if cmp expected actual >/dev/null 2>/dev/null
then
echo "PASS: $NAME"
else
FAILCOUNT=$(($FAILCOUNT + 1))
echo "FAIL: $NAME"
[ -z "$VERBOSE" ] || diff -u expected actual
fi
rm -f input expected actual
[ -z "$DEBUG" ] || set +x
return $RETVAL
}
# Recursively grab an executable and all the libraries needed to run it.
# Source paths beginning with / will be copied into destpath, otherwise
# the file is assumed to already be there and only its library dependencies
# are copied.
mkchroot()
{
[ $# -lt 2 ] && return
$ECHO -n .
dest=$1
shift
for i in "$@"
do
#bashism: [ "${i:0:1}" == "/" ] || i=$(which $i)
i=$(which $i) # no-op for /bin/prog
[ -f "$dest/$i" ] && continue
if [ -e "$i" ]
then
d=`echo "$i" | grep -o '.*/'` &&
mkdir -p "$dest/$d" &&
cat "$i" > "$dest/$i" &&
chmod +x "$dest/$i"
else
echo "Not found: $i"
fi
mkchroot "$dest" $(ldd "$i" | egrep -o '/.* ')
done
}
# Set up a chroot environment and run commands within it.
# Needed commands listed on command line
# Script fed to stdin.
dochroot()
{
mkdir tmpdir4chroot
mount -t ramfs tmpdir4chroot tmpdir4chroot
mkdir -p tmpdir4chroot/{etc,sys,proc,tmp,dev}
cp -L testing.sh tmpdir4chroot
# Copy utilities from command line arguments
$ECHO -n "Setup chroot"
mkchroot tmpdir4chroot $*
echo
mknod tmpdir4chroot/dev/tty c 5 0
mknod tmpdir4chroot/dev/null c 1 3
mknod tmpdir4chroot/dev/zero c 1 5
# Copy script from stdin
cat > tmpdir4chroot/test.sh
chmod +x tmpdir4chroot/test.sh
chroot tmpdir4chroot /test.sh
umount -l tmpdir4chroot
rmdir tmpdir4chroot
}
|
