| // 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 Set<E> intersection(Set<Object> other) |
| /// Returns a new set which is the intersection between this set and other. |
| /// @description Checks that new set is returned and [:this:] is not changed. |
| /// @author msyabro |
| |
| library intersection_A01_t03; |
| import "set.lib.dart"; |
| import "../../../Utils/expect.dart"; |
| |
| test(Set create([Iterable content])) { |
| Set s = create(); |
| Set newSet = s.intersection([1, 2, 3].toSet()); |
| Expect.setEquals(s, [].toSet()); |
| if(identical(newSet, s)) { |
| Expect.fail("[:intersection():] has returned [:this:]"); |
| } |
| |
| s = create([1, 2, 3]); |
| newSet = s.intersection([1, 2, 3].toSet()); |
| Expect.setEquals(s, [1, 2, 3].toSet()); |
| if(identical(newSet, s)) { |
| Expect.fail("[:intersection():] has returned [:this:]"); |
| } |
| |
| newSet = s.intersection([1].toSet()); |
| Expect.setEquals(s, [1, 2, 3].toSet()); |
| if(identical(newSet, s)) { |
| Expect.fail("[:intersection():] has returned [:this:]"); |
| } |
| } |
| |
| main() { |
| test(create); |
| } |