test-script

#!/bin/bash

diffprog=vimdiff
ask=1
workdir=$(mktemp -d)
cleanup() {
    rm -rf $workdir
}

if [ -z ${VIMDIFF+x} ]; then
    diffprog=diff
    ask=0
fi
trap 'cleanup' ERR

show_diff() {
    if [ -z ${NODIFF+x} ]; then
	    echo "-- start diff output --"
        $diffprog $1 $2
	    echo "-- stop diff output --"
    fi
}

set -e
test_file() {
    filepath=$1
    in_file=$(basename $filepath)
    base=${in_file%.c.in}
    reference_file=$base.c
    out_file=$base.out
    reference_err_file=$base.err
    err_out_file=$base.out.err
    set -e
    cp $filepath $workdir
    cp ${filepath%.c.in}.err $workdir
    outfile=${filepath%.in}
    cp $outfile $workdir
    set +e


    echo "==================="
    echo "$(basename $outfile)"
    echo "==================="
    $workdir/cpp-iw $workdir/$in_file > $workdir/$out_file 2> $workdir/$err_out_file
    
    
    cmp --silent $workdir/$out_file $workdir/$reference_file
    outeq=$?
    cmp --silent $workdir/$err_out_file $workdir/$reference_err_file
    erreq=$?

    if [ $outeq -eq 0 ]; then
	echo "stdout: SUCCESS"
    else
	echo "stdout: FAILED"
	show_diff $workdir/$out_file $workdir/$reference_file
    fi
    if [ $erreq -eq 0 ]; then
	echo "stderr: SUCCESS"
    else
	echo "stderr: FAILED"
	show_diff $workdir/$err_out_file $workdir/$reference_err_file
    fi
}

cp cpp-iw $workdir

if [ $# -eq 1 ]
  then
      test_file "tests/$1.c.in"
else
    for filepath in tests/*.in; do
	test_file $filepath
	if [ $ask -eq 1 ]
	   then
	       read -p "Continue? " -n 1 -r
	       echo ""
	       if [[ ! $REPLY =~ ^[Yy]$ ]]
               then
		   [[ "$0" = "$BASH_SOURCE" ]] && exit 1 || return 1
               fi
	fi
    done
fi