1 # Simple test harness infrastructurei for BusyBox
3 # Copyright 2005 by Rob Landley
5 # License is GPLv2, see LICENSE in the busybox tarball for full license text.
7 # This file defines two functions, "testing" and "optionflag"
9 # The following environment variables may be set to enable optional behavior
11 # VERBOSE - Print the diff -u of each failed test case.
12 # DEBUG - Enable command tracing.
13 # SKIP - do not perform this test (this is set by "optionflag")
15 # The "testing" function takes five arguments:
16 # $1) Description to display when running command
17 # $2) Command line arguments to command
18 # $3) Expected result (on stdout)
19 # $4) Data written to file "input"
20 # $5) Data written to stdin
22 # The exit value of testing is the exit value of the command it ran.
24 # The environment variable "FAILCOUNT" contains a cumulative total of the
25 # number of failed tests.
27 # The "optional" function is used to skip certain tests, ala:
28 # optionflag CONFIG_FEATURE_THINGY
30 # The "optional" function checks the environment variable "OPTIONFLAGS",
31 # which is either empty (in which case it always clears SKIP) or
32 # else contains a colon-separated list of features (in which case the function
33 # clears SKIP if the flag was found, or sets it to 1 if the flag was not found).
42 option=`echo "$OPTIONFLAGS" | egrep "(^|:)$1(:|\$)"`
44 if [ -z "$1" ] || [ -z "$OPTIONFLAGS" ] || [ ${#option} -ne 0 ]
52 # The testing function
57 [ -z "$1" ] && NAME=$2
61 echo "Test $NAME has wrong number of arguments (must be 5) ($# $*)" >&2
65 [ -n "$DEBUG" ] && set -x
73 echo -ne "$3" > expected
75 [ -z "$VERBOSE" ] || echo "echo '$5' | $2"
76 echo -ne "$5" | eval "$2" > actual
79 cmp expected actual >/dev/null 2>/dev/null
82 FAILCOUNT=$[$FAILCOUNT+1]
84 [ -n "$VERBOSE" ] && diff -u expected actual
88 rm -f input expected actual
90 [ -n "$DEBUG" ] && set +x
95 # Recursively grab an executable and all the libraries needed to run it.
96 # Source paths beginning with / will be copied into destpath, otherwise
97 # the file is assumed to already be there and only its library dependencies
102 [ $# -lt 2 ] && return
110 [ "${i:0:1}" == "/" ] || i=$(which $i)
111 [ -f "$dest/$i" ] && continue
114 d=`echo "$i" | grep -o '.*/'` &&
115 mkdir -p "$dest/$d" &&
116 cat "$i" > "$dest/$i" &&
121 mkchroot "$dest" $(ldd "$i" | egrep -o '/.* ')
125 # Set up a chroot environment and run commands within it.
126 # Needed commands listed on command line
127 # Script fed to stdin.
132 mount -t ramfs tmpdir4chroot tmpdir4chroot
133 mkdir -p tmpdir4chroot/{etc,sys,proc,tmp,dev}
134 cp -L testing.sh tmpdir4chroot
136 # Copy utilities from command line arguments
138 echo -n "Setup chroot"
139 mkchroot tmpdir4chroot $*
142 mknod tmpdir4chroot/dev/tty c 5 0
143 mknod tmpdir4chroot/dev/null c 1 3
144 mknod tmpdir4chroot/dev/zero c 1 5
146 # Copy script from stdin
148 cat > tmpdir4chroot/test.sh
149 chmod +x tmpdir4chroot/test.sh
150 chroot tmpdir4chroot /test.sh
151 umount -l tmpdir4chroot