blob: bf769bd0cd43ca058dd1f95805dd39ca9466499e [file] [log] [blame]
// 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))
/// Checks every element in iteration order, and returns [false] if any of them
/// make [test] return [false], otherwise returns [true].
/// @description Checks that the predicate method is called for each element
/// until the first [false] result.
/// @author kaigorodov
import "dart:collection";
import "../../../Utils/expect.dart";
import "LinkedList.lib.dart";
//Checks that [every] calls [predicate] a [count] number of times
check(LinkedList<MyLinkedListEntry> a, bool predicate(var e), int count) {
int actualCount = 0;
a.every((MyLinkedListEntry e) {
return predicate(e.value);
Expect.equals(count, actualCount);
bool allTrue(var e) => true;
bool allFalse(var e) => false;
bool lessThan3(var e) => e < 3;
main() {
LinkedList<MyLinkedListEntry> a = toLinkedList([1, 2, 3, 4, 5]);
check(a, allTrue, 5);
check(a, allFalse, 1);
check(a, lessThan3, 3);