| // 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. |
| |
| import 'dart:collection'; |
| import "package:expect/expect.dart"; |
| |
| testRemove(base) { |
| int length = base.length; |
| for (int i = 0; i < length; i++) { |
| Expect.isFalse(base.isEmpty); |
| base.remove(base.first); |
| } |
| Expect.isTrue(base.isEmpty); |
| } |
| |
| testRemoveAll(base, Iterable removes) { |
| Set retained = new Set(); |
| for (var element in base) { |
| if (!removes.contains(element)) { |
| retained.add(element); |
| } |
| } |
| String name = "$base.removeAll($removes) -> $retained"; |
| base.removeAll(removes); |
| for (var value in base) { |
| Expect.isFalse(removes.contains(value), "$name: Found $value"); |
| } |
| for (var value in retained) { |
| Expect.isTrue(base.contains(value), "$name: Found $value"); |
| } |
| } |
| |
| testRetainAll(base, Iterable retains) { |
| Set retained = new Set(); |
| for (var element in base) { |
| if (retains.contains(element)) { |
| retained.add(element); |
| } |
| } |
| String name = "$base.retainAll($retains) -> $retained"; |
| base.retainAll(retains); |
| for (var value in base) { |
| Expect.isTrue(retains.contains(value), "$name: Found $value"); |
| } |
| for (var value in retained) { |
| Expect.isTrue(base.contains(value), "$name: Found $value"); |
| } |
| } |
| |
| testRemoveWhere(base, bool test(value)) { |
| Set retained = new Set(); |
| for (var element in base) { |
| if (!test(element)) { |
| retained.add(element); |
| } |
| } |
| String name = "$base.removeWhere(...) -> $retained"; |
| base.removeWhere(test); |
| for (var value in base) { |
| Expect.isFalse(test(value), "$name: Found $value"); |
| } |
| for (var value in retained) { |
| Expect.isTrue(base.contains(value), "$name: Found $value"); |
| } |
| } |
| |
| testRetainWhere(base, bool test(value)) { |
| Set retained = new Set(); |
| for (var element in base) { |
| if (test(element)) { |
| retained.add(element); |
| } |
| } |
| String name = "$base.retainWhere(...) -> $retained"; |
| base.retainWhere(test); |
| for (var value in base) { |
| Expect.isTrue(test(value), "$name: Found $value"); |
| } |
| for (var value in retained) { |
| Expect.isTrue(base.contains(value), "$name: Found $value"); |
| } |
| } |
| |
| void main() { |
| var collections = [ |
| [], [1], [2], [1, 2], [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], |
| [1, 3, 5, 7, 9], [2, 4, 6, 8, 10] |
| ]; |
| for (var base in collections) { |
| for (var delta in collections) { |
| testRemove(base.toList()); |
| testRemove(base.toSet()); |
| |
| var deltaSet = delta.toSet(); |
| testRemoveWhere(base.toList(), deltaSet.contains); |
| testRetainWhere(base.toList(), |
| (e) => !deltaSet.contains(e)); |
| |
| testRemoveAll(base.toSet(), delta); |
| testRemoveAll(base.toSet(), deltaSet); |
| testRetainAll(base.toSet(), delta); |
| testRetainAll(base.toSet(), deltaSet); |
| testRemoveWhere(base.toSet(), deltaSet.contains); |
| testRetainWhere(base.toSet(), (e) => !deltaSet.contains(e)); |
| |
| // Test the ListBase class's List implementation. |
| testRemoveWhere(new MyList(base.toList()), deltaSet.contains); |
| testRetainWhere(new MyList(base.toList()), |
| (e) => !deltaSet.contains(e)); |
| |
| } |
| } |
| } |
| |
| class MyList<E> extends ListBase<E> { |
| List<E> _source; |
| MyList(this._source); |
| int get length => _source.length; |
| void set length(int length) { _source.length = length; } |
| E operator[](int index) => _source[index]; |
| void operator[]=(int index, E value) { _source[index] = value; } |
| } |