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 // 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 whether every element of this iterable satisfies test. /// 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 vasya /// @author msyabro library every_A01_t02; import "../../../Utils/expect.dart"; test(Iterable create([Iterable content])) { //Checks that [every] calls [predicate] a [count] number of times check(List a0, bool predicate(var e), int count) { Iterable a = create(a0); int actualCount = 0; a.every((var e) { actualCount++; return predicate(e); }); Expect.equals(count, actualCount); } bool allTrue(var e) { return true; } check([1, 2, 3, 4, 5], allTrue, 5); bool allFalse(var e) { return false; } check([1, 2, 3, 4, 5], allFalse, 1); bool lessThan3(var e) { return e < 3; } check([1, 2, 3, 4, 5], lessThan3, 3); check(const [1, 2, 3, 4, 5], lessThan3, 3); check(new List.from([1, 2, 3, 4, 5]), lessThan3, 3); List l = new List.empty(growable: true); l.addAll([1, 2, 3, 4, 5]); check(l, lessThan3, 3); }