-# Simple test harness infrastructurei for BusyBox
+# Simple test harness infrastructure for BusyBox
#
# Copyright 2005 by Rob Landley
#
# License is GPLv2, see LICENSE in the busybox tarball for full license text.
-# The "testing" function uses one environment variable:
-# COMMAND = command to execute
+# 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 function takes five arguments:
-# $1) Description to display when running command
-# $2) Command line arguments to command"
-# $3) Expected result (on stdout)"
-# $4) Data written to file "input"
-# $5) Data written to stdin
+# 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 the command it ran.
+# The exit value of testing is the exit value of $2 it ran.
#
# The environment variable "FAILCOUNT" contains a cumulative total of the
-#
-
-# The command line parsing is ugly and should be improved.
+# number of failed tests.
-if [ "$1" == "-v" ]
-then
- verbose=1
-fi
+# The "optional" function is used to skip certain tests, ala:
+# optional FEATURE_THINGY
+#
+# The "optional" function checks the environment variable "OPTIONFLAGS",
+# which is either empty (in which case it always clears SKIP) or
+# else contains a colon-separated list of features (in which case the function
+# clears SKIP if the flag was found, or sets it to 1 if the flag was not found).
export FAILCOUNT=0
+export SKIP=
+
+# Helper for helpers. Oh my...
+
+test x"$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 "$1"; do
+ case "${OPTIONFLAGS}" in
+ *:$1:*) ;;
+ *) SKIP=1; return ;;
+ esac
+ shift
+ done
+}
# The testing function
-function testing()
+testing()
{
+ NAME="$1"
+ [ -n "$1" ] || NAME="$2"
+
if [ $# -ne 5 ]
then
- echo "Test $1 has the wrong number of arguments" >&2
- exit
+ 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: $NAME"
+ return 0
fi
- f=$FAILCOUNT
- echo -ne "$3" > expected
- echo -ne "$4" > input
- echo -n -e "$5" | eval "$COMMAND $2" > actual
+ $ECHO -ne "$3" > expected
+ $ECHO -ne "$4" > input
+ [ -z "$VERBOSE" ] || echo ======================
+ [ -z "$VERBOSE" ] || echo "echo -ne '$4' >input"
+ [ -z "$VERBOSE" ] || echo "echo -ne '$5' | $2"
+ $ECHO -ne "$5" | eval "$2" > actual
RETVAL=$?
- cmp expected actual > /dev/null
- if [ $? -ne 0 ]
+ if cmp expected actual >/dev/null 2>/dev/null
then
- FAILCOUNT=$[$FAILCOUNT+1]
- echo "FAIL: $1"
- if [ $verbose ]
- then
- diff -u expected actual
- fi
+ echo "PASS: $NAME"
else
- echo "PASS: $1"
+ FAILCOUNT=$(($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
+}
projects / oweals / busybox.git / blobdiff