| /* |
| * Copyright (c) 2016, 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 SplayTreeSet([int compare(E key1, E key2), |
| * bool isValidKey(potentialKey)]) |
| * ... |
| * The methods contains, remove, lookup, removeAll or retainAll are typed to |
| * accept any object(s), and the isValidKey test can used to filter those |
| * objects before handing them to the compare function. |
| * If isValidKey is provided, only values satisfying isValidKey(other) are |
| * compared using the compare method in the methods mentioned above |
| * @description Checks that if isValidKey function is provided then it called |
| * before contains, remove, lookup, removeAll or retainAll |
| * @author sgrekhov@unipro.ru |
| */ |
| import "dart:collection"; |
| import "../../../Utils/expect.dart"; |
| |
| bool startTesting = false; |
| bool isValidkeyCalled = false; |
| bool compareCalled = false; |
| |
| bool isValidKey(potentialKey) { |
| if (startTesting) { |
| isValidkeyCalled = true; |
| } |
| return potentialKey is String; |
| } |
| |
| int compare(var key1, var key2) { |
| if (startTesting) { |
| Expect.isTrue(isValidkeyCalled); |
| } |
| return 1; |
| } |
| |
| main() { |
| SplayTreeSet set = new SplayTreeSet(compare, isValidKey); |
| set.add(""); |
| set.add("1"); |
| set.add("2"); |
| set.add("3"); |
| |
| startTesting = true; |
| set.contains(3); |
| isValidkeyCalled = false; |
| set.lookup(3); |
| isValidkeyCalled = false; |
| set.remove(3); |
| isValidkeyCalled = false; |
| set.removeAll([1, 3]); |
| isValidkeyCalled = false; |
| set.retainAll([1, 2, 3]); |
| |
| Expect.isTrue(isValidkeyCalled); |
| Expect.isFalse(compareCalled); |
| } |