blob: ccfebc805527051250ebb85fbd18560cc5a311ee
| 1 | # Simple test harness infrastructure for BusyBox |
| 2 | # |
| 3 | # Copyright 2005 by Rob Landley |
| 4 | # |
| 5 | # License is GPLv2, see LICENSE in the busybox tarball for full license text. |
| 6 | |
| 7 | # This file defines two functions, "testing" and "optional" |
| 8 | # and a couple more... |
| 9 | |
| 10 | # The following environment variables may be set to enable optional behavior |
| 11 | # in "testing": |
| 12 | # VERBOSE - Print the diff -u of each failed test case. |
| 13 | # DEBUG - Enable command tracing. |
| 14 | # SKIP - do not perform this test (this is set by "optional") |
| 15 | # |
| 16 | # The "testing" function takes five arguments: |
| 17 | # $1) Test description |
| 18 | # $2) Command(s) to run. May have pipes, redirects, etc |
| 19 | # $3) Expected result on stdout |
| 20 | # $4) Data to be written to file "input" |
| 21 | # $5) Data to be written to stdin |
| 22 | # |
| 23 | # The exit value of testing is the exit value of $2 it ran. |
| 24 | # |
| 25 | # The environment variable "FAILCOUNT" contains a cumulative total of the |
| 26 | # number of failed tests. |
| 27 | |
| 28 | # The "optional" function is used to skip certain tests, ala: |
| 29 | # optional FEATURE_THINGY |
| 30 | # |
| 31 | # The "optional" function checks the environment variable "OPTIONFLAGS", |
| 32 | # which is either empty (in which case it always clears SKIP) or |
| 33 | # else contains a colon-separated list of features (in which case the function |
| 34 | # clears SKIP if the flag was found, or sets it to 1 if the flag was not found). |
| 35 | |
| 36 | export FAILCOUNT=0 |
| 37 | export SKIP= |
| 38 | |
| 39 | # Android Specific |
| 40 | |
| 41 | if [ ! -x /bin ]; then |
| 42 | mount -o remount,rw / |
| 43 | ln -s /system/xbin /bin |
| 44 | fi |
| 45 | |
| 46 | # Helper for helpers. Oh my... |
| 47 | |
| 48 | test x"$ECHO" != x"" || { |
| 49 | ECHO="echo" |
| 50 | test x"`echo -ne`" = x"" || { |
| 51 | # Compile and use a replacement 'echo' which understands -e -n |
| 52 | ECHO="$PWD/echo-ne" |
| 53 | test -x "$ECHO" || { |
| 54 | gcc -Os -o "$ECHO" ../scripts/echo.c || exit 1 |
| 55 | } |
| 56 | } |
| 57 | export ECHO |
| 58 | } |
| 59 | |
| 60 | # Helper functions |
| 61 | |
| 62 | optional() |
| 63 | { |
| 64 | SKIP= |
| 65 | while test "$1"; do |
| 66 | case "${OPTIONFLAGS}" in |
| 67 | *:$1:*) ;; |
| 68 | *) SKIP=1; return ;; |
| 69 | esac |
| 70 | shift |
| 71 | done |
| 72 | } |
| 73 | |
| 74 | # The testing function |
| 75 | |
| 76 | testing() |
| 77 | { |
| 78 | NAME="$1" |
| 79 | [ -n "$1" ] || NAME="$2" |
| 80 | |
| 81 | if [ $# -ne 5 ] |
| 82 | then |
| 83 | echo "Test $NAME has wrong number of arguments: $# (must be 5)" >&2 |
| 84 | exit 1 |
| 85 | fi |
| 86 | |
| 87 | [ -z "$DEBUG" ] || set -x |
| 88 | |
| 89 | if [ -n "$SKIP" ] |
| 90 | then |
| 91 | echo "SKIPPED: $NAME" |
| 92 | return 0 |
| 93 | fi |
| 94 | |
| 95 | $ECHO -ne "$3" > expected |
| 96 | $ECHO -ne "$4" > input |
| 97 | [ -z "$VERBOSE" ] || echo ====================== |
| 98 | [ -z "$VERBOSE" ] || echo "echo -ne '$4' >input" |
| 99 | [ -z "$VERBOSE" ] || echo "echo -ne '$5' | $2" |
| 100 | $ECHO -ne "$5" | eval "$2" > actual |
| 101 | RETVAL=$? |
| 102 | |
| 103 | if cmp expected actual >/dev/null 2>/dev/null |
| 104 | then |
| 105 | echo "PASS: $NAME" |
| 106 | else |
| 107 | FAILCOUNT=$(($FAILCOUNT + 1)) |
| 108 | echo "FAIL: $NAME" |
| 109 | [ -z "$VERBOSE" ] || diff -u expected actual |
| 110 | fi |
| 111 | rm -f input expected actual |
| 112 | |
| 113 | [ -z "$DEBUG" ] || set +x |
| 114 | |
| 115 | return $RETVAL |
| 116 | } |
| 117 | |
| 118 | # Recursively grab an executable and all the libraries needed to run it. |
| 119 | # Source paths beginning with / will be copied into destpath, otherwise |
| 120 | # the file is assumed to already be there and only its library dependencies |
| 121 | # are copied. |
| 122 | |
| 123 | mkchroot() |
| 124 | { |
| 125 | [ $# -lt 2 ] && return |
| 126 | |
| 127 | $ECHO -n . |
| 128 | |
| 129 | dest=$1 |
| 130 | shift |
| 131 | for i in "$@" |
| 132 | do |
| 133 | #bashism: [ "${i:0:1}" == "/" ] || i=$(which $i) |
| 134 | i=$(which $i) # no-op for /bin/prog |
| 135 | [ -f "$dest/$i" ] && continue |
| 136 | if [ -e "$i" ] |
| 137 | then |
| 138 | d=`echo "$i" | grep -o '.*/'` && |
| 139 | mkdir -p "$dest/$d" && |
| 140 | cat "$i" > "$dest/$i" && |
| 141 | chmod +x "$dest/$i" |
| 142 | else |
| 143 | echo "Not found: $i" |
| 144 | fi |
| 145 | mkchroot "$dest" $(ldd "$i" | egrep -o '/.* ') |
| 146 | done |
| 147 | } |
| 148 | |
| 149 | # Set up a chroot environment and run commands within it. |
| 150 | # Needed commands listed on command line |
| 151 | # Script fed to stdin. |
| 152 | |
| 153 | dochroot() |
| 154 | { |
| 155 | mkdir tmpdir4chroot |
| 156 | mount -t ramfs tmpdir4chroot tmpdir4chroot |
| 157 | mkdir -p tmpdir4chroot/{etc,sys,proc,tmp,dev} |
| 158 | cp -L testing.sh tmpdir4chroot |
| 159 | |
| 160 | # Copy utilities from command line arguments |
| 161 | |
| 162 | $ECHO -n "Setup chroot" |
| 163 | mkchroot tmpdir4chroot $* |
| 164 | echo |
| 165 | |
| 166 | mknod tmpdir4chroot/dev/tty c 5 0 |
| 167 | mknod tmpdir4chroot/dev/null c 1 3 |
| 168 | mknod tmpdir4chroot/dev/zero c 1 5 |
| 169 | |
| 170 | # Copy script from stdin |
| 171 | |
| 172 | cat > tmpdir4chroot/test.sh |
| 173 | chmod +x tmpdir4chroot/test.sh |
| 174 | chroot tmpdir4chroot /test.sh |
| 175 | umount -l tmpdir4chroot |
| 176 | rmdir tmpdir4chroot |
| 177 | } |
| 178 |