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#!/bin/sh
#
# The regression-test driver script.  This used to be explicit in the
# makefile before we regrouped the regression tests by stable and unstable 
# drivers.
#
PATH=.:$PATH
export PATH

mode=regress
opts=""
while getopts strbvo opt
do
    case $opt in
	s) mode=regress ;;	# Run regression tests
	t) opts="-b $opts" mode=regress ;;	# Run regression tests w/baton
	r) mode=superraw ;;	# Run superraw regressions (r=2 mode)
	b) mode=build ;;	# Rebuild regression check files
	v) mode=view ;;		# View result of generating a check file
	o) opts="$opts $OPTARG" ;;	# Pass options to gpsfake
    esac
done
shift $(($OPTIND - 1))

# Enables us to turn debugging up high without screwing up the diff checks
# First expression filters out device notifications on old protocol.
# Second and third filter out gpsd log messages.
# Fourth filters out gps.py verbose loggging
# Fifth filters out new-style WATCH responses
# Sixth filters out new-style DEVICE responses
# Seventh filters out new-style VERSION responses
# Eighth filters out device fields in new-style responses.
GPSFILTER="sed -e /^GPSD,X/d -e /^gpsd:/d -e /^gpsfake/d -e /GPS-DATA/d -e /WATCH/d -e /DEVICE/d -e /VERSION/d -e s/\"device\":[^,]*,//"

# Use ALTFILTER to set up custom filtering when a regression test fails
# This example filters out altitude and some fields computed by gpsd's error modeling - these are fragile in the prsence of changes 
# to the fix-buffering logic. Note that as the last attribute mode needs to be handled.
#ALTFILTER="-e s/\"alt\":[^,]*,// -e s/\"ep[vhs]\":[-+0-9.]*// -e s/,\"mode\":[^}]*//"

case $mode in
    regress)
        echo "Testing the daemon..." >&2
	trap 'rm -f $dir/test.chk $dir/test-whole.chk $dir/test-trunk.chk $dir/log-copy.chk $dir/diff $dir/diff-trunc; exit $errors' 0 1 2 15
        errors=0; total=0; notfound=0;
        for f in $*; do
            dir=`dirname $f`
	    if [ -r $f.chk ]
	    then
		gpsfake -s 38400 -1 -p $opts ${f} | ${GPSFILTER} ${ALTFILTER} >$dir/test.chk;
		sed -n <${f}.chk >$dir/log-copy.chk ${ALTFILTER} -e 'p';
		sed -n <$dir/test.chk >$dir/test-whole.chk ${ALTFILTER} -e 'p';
		sed -n <$dir/test.chk >$dir/test-trunc.chk -e '$d' ${ALTFILTER} -e 'p';
		diff -ub $dir/log-copy.chk $dir/test-whole.chk >$dir/diff;
		diff -ub $dir/log-copy.chk $dir/test-trunc.chk >$dir/diff-trunc;
		if test \( -s $dir/diff \) -a \( -s $dir/diff-trunc \) ; then
		    errors=`expr $errors + 1`;
		    cat $dir/diff
		fi;
	    else
		echo "*** No check log $f.chk exists"
		notfound=`expr $notfound + 1`;
	    fi
	    total=`expr $total + 1`;
        done; 
        if test $errors -gt 0; then
            echo "Regression test FAILED: $errors errors in $total tests total  ($notfound not found).";
            exit 1;
        else
            echo "Regression test successful: no errors in $total tests ($notfound not found).";
            exit 0;
        fi
        ;;
    superraw)
        echo "Testing super-raw mode..." >&2
        for f in $*; do
            dir=`dirname $f`
            gpsfake -s 38400 -1 -b -p -r '{"class":"WATCH","enable":False,"raw":1}' $opts ${f} \
            | ./striplog -1 >$dir/test1.chk;
            ./striplog <$${f} >$dir/test2.chk;
            cmp $dir/test[12].chk;
        done; rm $dir/test[12].chk
        ;;
    build)
	echo "Rebuilding regressions..." >&2
        for f in $*; do
            gpsfake -s 38400 -1 -b -p $opts ${f} | ${GPSFILTER} >${f}.chk;
        done
        exit 0
        ;;
    view)
        echo "Viewing..." >&2
        for f in $*; do
            gpsfake -s 38400 -1 -b -p $opts ${f} | ${GPSFILTER}
        done
        exit 0
        ;;
esac