#! /bin/shLOGFILE=runtests.logPOTENTIAL_TESTS='testboundaries testcolor'ECHO_C=''ECHO_N='-n'for I in $POTENTIAL_TESTSdo    GOOD=yes    test -f $I || {        echo "WARNING: test program $I not found, not running"        GOOD=no    }    if test x$GOOD = xyes; then        test -x $I || {            echo "WARNING: test program $I is not executable, not running"            GOOD=no        }    fi        if test x$GOOD = xyes; then        TESTS="$TESTS$I "    fidoneecho "Logging to $LOGFILE"echo "Log file for Pango test programs." > $LOGFILEecho "" >> $LOGFILEecho "Tests are: "$TESTS >> $LOGFILEecho "" >> $LOGFILEfor I in $TESTSdo    echo $ECHO_N "Running test program \"$I\", please wait:$ECHO_C"    echo "" >> $LOGFILE    echo "Output of $I:" >> $LOGFILE    if ./$I >>$LOGFILE 2>&1; then        echo " passed"    else        echo        echo        echo '***'        echo " Test failed: $I"        echo " See $LOGFILE for errors"        echo         exit 1    fidoneecho echo "All tests passed."