#!/bin/sh

if [ "$#" = 0 ]; then
  getopt=./getopt
elif [ "$#" = 1 ]; then
  getopt="$1"
else
  echo "Syntax: $0 [ PATH_TO_GETOPT ]" 2>&1
  exit 2
fi

# Reset the environment
LC_ALL="C"
unset LANG
unset LC_CTYPE
unset LC_COLLATE
unset LC_MESSAGES
unset POSIXLY_CORRECT
unset GETOPT_COMPATIBLE
cd `dirname $0`

for testcmd in tests/*.cmd; do
  test_failed=0
  rm -f test-stdout test-stderr test-stdout-expected test-stderr-expected

  testfile=`basename "$testcmd" .cmd`

  echo "Next test: $testfile"
  "tests/${testfile}.cmd" "$getopt" > test-stdout 2>test-stderr
  exitcode="$?"

  if [ "$exitcode" != "`cat tests/${testfile}.exitcode`" ]; then
    echo "TEST FAILED: expected exit code `cat tests/${testfile}.exitcode`, got $exitcode"
    test_failed=1
  else
    echo "Received expected exit code"
  fi

  cat tests/${testfile}.stdout | sed "s,\$0,$getopt,g" > test-stdout-expected
  if ! cmp -s test-stdout test-stdout-expected ; then
    echo "TEST FAILED: unexpected stdout output, diff follows:"
    diff test-stdout test-stdout-expected
    test_failed=1
  else
    echo "Received expected stdout output"
  fi

  cat tests/${testfile}.stderr | sed "s,\$0,$getopt,g" > test-stderr-expected
  if ! cmp -s test-stderr test-stderr-expected ; then
    echo "TEST FAILED: unexpected stdout output, diff follows:"
    diff test-stderr test-stderr-expected
    test_failed=1
  else
    echo "Received expected stderr output"
  fi
  echo 

  if [ "$test_failed" = 1 ]; then
    failed_tests="$failed_tests $testfile"
  fi
  rm -f test-stdout test-stderr test-stdout-expected test-stderr-expected
  echo
done

if [ -z "$failed_tests" ]; then
  echo "ALL TESTS SUCCEEDED"
  exit 0
else
  echo "SOME TESTS FAILED: $failed_tests"
  exit 1
fi