#!/bin/sh

set -e

DIR="$(dirname "$0")"
ZZUF="$DIR/../src/zzuf"
PROGRAM="$DIR/bug-div0"
if [ ! -f "$PROGRAM" ]; then
  echo "error: test/bug-div0 is missing"
  exit 1
fi
FAILED=0
TESTED=0

if [ -z "$1" ]; then
  seed=$(date | $ZZUF -m 2>/dev/null | cut -f2 -d' ' | tr -d abcdef | cut -b1-8)
else
  seed="$1"
fi

echo "*** running zzuf division-by-zero test with seed $seed ***"

echo "*** bug-div0 < /file-00"
if ! $PROGRAM < "$DIR/file-00"; then
    echo " unexpected exit status $?"
    FAILED="$(($FAILED + 1))"
else
    echo " OK"
fi
TESTED="$(($TESTED + 1))"

echo "*** zzuf -qi -r0 bug-div0 < /file-00"
if ! "$ZZUF" -r0 -qi "$PROGRAM" < "$DIR/file-00"; then
    echo " unexpected exit status $?"
    FAILED="$(($FAILED + 1))"
else
    echo " OK"
fi
TESTED="$(($TESTED + 1))"

echo "*** zzuf -qi bug-div0 < file-00"
if "$ZZUF" -qi "$PROGRAM" < "$DIR/file-00"; then
    echo " unexpected exit status $?"
    FAILED="$(($FAILED + 1))"
else
    echo " OK"
fi
TESTED="$(($TESTED + 1))"

if [ "$FAILED" != 0 ]; then
    echo "*** $FAILED tests failed out of $TESTED ***"
    exit 1
fi
echo "*** all $TESTED tests OK ***"

exit 0