| // 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 abstract void insertAll(int index, Iterable<E> iterable) |
| /// Inserts all elements of iterable at position index in the list. |
| /// This increases the length of the list by the length of iterable and shifts |
| /// all later elements towards the end of the list. |
| /// @description Checks that the elements from iterable are inserted. |
| /// @author kaigorodov |
| |
| library insertAll_A01_t01; |
| |
| import "../../../Utils/expect.dart"; |
| |
| void check(List<E> create<E>([int length, E fill]), List a0, int index, |
| Iterable elements) { |
| List a = create(); |
| a.insertAll(0, a0); |
| |
| a.insertAll(index, elements); |
| Expect.equals(a0.length + elements.length, a.length); |
| for (int k = 0; k < index; k++) { |
| Expect.identical(a0[k], a[k]); |
| } |
| int k = 0; |
| for (var element in elements) { |
| Expect.identical(element, a[index + k]); |
| k++; |
| } |
| for (int k = index; k < a0.length; k++) { |
| Expect.identical(a0[k], a[k + elements.length]); |
| } |
| } |
| |
| test(List<E> create<E>([int length, E fill])) { |
| List a0 = [1, 3, 3, 4, 5, 6]; |
| check(create, a0, 0, [10, 20, 33]); |
| check(create, a0, 3, [-10, 20, 33]); |
| check(create, a0, a0.length - 1, [10, null, 33]); |
| check(create, a0, a0.length, [10, 20, -33, null]); |
| } |