LibTest/collection/LinkedList/every_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 bool every(bool f(E element))
 * Returns true if every elements of this collection satisify the predicate test.
 * Returns false otherwise.
 * @description Check that true is returned only if every element of the list satisfies the predicate [f].
 * @author kaigorodov
 */
import "dart:collection";
import "../../../Utils/expect.dart";
import "LinkedList.lib.dart";

main() {
  LinkedList<MyLinkedListEntry> a = toLinkedList([0,1,2,3,4,5,6,7,8,9]);
  Expect.isTrue(a.every((MyLinkedListEntry e) { return (e.value >= 0 && e.value < 10); } ));
  Expect.isFalse(a.every((MyLinkedListEntry e) { return (e.value < 0); } ));

  a = toLinkedList([[],[null], [1,2,3,4], ["string"]]);
  Expect.isTrue(a.every((MyLinkedListEntry e) { return (e.value is List); } ));
  Expect.isFalse(a.every((MyLinkedListEntry e) { return (e.value is Set); } ));
}