#!/bin/bash -vx

set -euo pipefail

# testwrapper.sh: run a flex test, typically called by a Makefile

# Each test will exercise some feature or aspect of flex. Run the test with any input it may need.

INPUT_DIRECTORY=""

INPUT_NAME=""

INPUT_COUNT=0

USE_REDIRECT=0

DO_COMPARISON=0

while getopts :d:i:rt1 OPTION ; do

    case $OPTION in

        d) INPUT_DIRECTORY=$OPTARG ;;

        i)

            if [ "$INPUT_NAME" == "" ] ; then

                INPUT_NAME="$OPTARG"

            else

                INPUT_NAME="$INPUT_NAME $OPTARG"

            fi

            INPUT_COUNT=$(($INPUT_COUNT+1))

            ;;

        r) USE_REDIRECT=1 ;;

        t) USE_TABLES=1 ;;

        1) DO_COMPARISON=1 ;;

    esac

    done

TESTNAME="${!OPTIND}"

INPUT_NAME=${INPUT_NAME:-$INPUT_DIRECTORY/`basename $TESTNAME`.txt}

if [ "$DO_COMPARISON" -eq "1" ] ; then

    test `$TESTNAME 1 < $INPUT_NAME` -eq `$TESTNAME < $INPUT_NAME`

    exit $?

    fi

if [ $INPUT_COUNT -gt 1 ] ; then

    $TESTNAME ${USE_TABLES:+${INPUT_DIRECTORY}/${TESTNAME}.tables} ${INPUT_NAME}

    exit $?

    fi

if [ -f ${INPUT_NAME} ] ; then

    if [ $USE_REDIRECT == 1 ] ; then

        $TESTNAME ${USE_TABLES:+${INPUT_DIRECTORY}/${TESTNAME}.tables} < $INPUT_NAME

    else

        $TESTNAME ${USE_TABLES:+${INPUT_DIRECTORY}/${TESTNAME}.tables} $INPUT_NAME

    fi

else

    $TESTNAME

fi