LibTest/collection/LinkedList/first_A01_t01.dart

// 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.

/**
 * @assertion final E first
 * Returns the first element.
 * @description Checks that a StateError is thrown when this is empty.
 * @author kaigorodov
 */
import "../../../Utils/expect.dart";
import "dart:collection";
import "LinkedList.lib.dart";

main() {
  LinkedList<MyLinkedListEntry> a = new LinkedList<MyLinkedListEntry>();
  Expect.throws(() {
      a.first;
    },
    (e)=> e is StateError
  );
}