// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// @dart = 2.9

/// @assertion static void isNotNull(var actual, [String reason = null])
/// Checks whether [actual] is not null.
/// @description Checks that using a null argument results in ExpectException
///              being thrown, regardless of whether the reason (2nd argument) is null.
/// @author rodionov
/// @reviewer varlax

import "../../../Utils/expect.dart";

main() {
  check(null);
  check(null, "");
  check(null, "not empty");
}

void check(var arg, [String reason = null]) {
  try {
    Expect.isNotNull(arg, reason);
    throw new Exception("ExpectException expected");
  } on ExpectException catch(e) {
  }
}