#!/bin/bash

NUM=1

while [ -f "$NUM.eqns" ]
do
  OUTPUT=$($1 "$NUM.eqns" smart smart)
  DIFF=$(echo "$OUTPUT" | diff - "$NUM.soln")
  if [ ! -z "$DIFF" ]; then
    echo "=================="
    echo "Test #$NUM failed:"
    echo "$OUTPUT" | sdiff - "$NUM.soln"
    echo
  fi
  NUM=$(($NUM + 1))
done