#!/bin/bash

# Usage: test-correct INPUTFILE.tx ...
#     Run each INPUTFILE through the program, checking the result against
#     the standard output INPUTFILE.std.  Reports number of failures.
#     Exits with 0 iff there are no errors.

prog="java -ea tex61.Main"
out="/tmp/tex61$$.out"
normalize=$(dirname $0)/normalize

trap 'rm -rf $out' 0 SIGHUP SIGINT SIGTERM

tests=0
errs=0
problems=0
for f in "$@"; do
    name="$(basename $f .tx)"

    if [ ! -f $f ]; then
        continue
    fi

    echo -n $name...
    tests=$(($tests + 1))

    rm -rf $out
    std="$(dirname $f)/${name}.std"

    if $prog $f $out; then 
        if [ ! -f $std ]; then
           echo "PROBLEM ($std missing)"
           problems=$(($problems + 1))
        elif diff <($normalize $out) <($normalize $std) >/dev/null 2>&1; then
           echo OK
        else
           echo "FAILED (wrong output)"
           errs=$(($errs + 1))
        fi
    else
        echo "FAILED (error during execution)"
           errs=$(($errs + 1))
    fi
done

echo -n "Out of $tests tests:"
if [ $errs -eq 0 -a $problems -eq 0 ]; then
   echo " all passed"
   exit 0
elif [ $problems -eq 0 ]; then
   echo " $errs failures"
   exit 1
else 
   echo " $errs failures, $problems problems"
   exit 1
fi