| # 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 "$ECHO" ../scripts/echo.c || exit 1 |
| } |
| } |
| export ECHO |
| } |
| |
| # Helper functions |
| |
| optional() |
| { |
| option=`echo ":$OPTIONFLAGS:" | grep ":$1:"` |
| # Not set? |
| if [ -z "$1" ] || [ -z "$OPTIONFLAGS" ] || [ ${#option} -ne 0 ] |
| then |
| SKIP= |
| return |
| fi |
| SKIP=1 |
| } |
| |
| # 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 '$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 |
| } |