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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. |
| 4 |
| 5 import "package:expect/expect.dart"; |
| 6 |
| 7 class A { const A(); } |
| 8 class B extends A { const B(); } |
| 9 |
| 10 main() { |
| 11 var set1 = new Set<B>(); |
| 12 set1.add(const B()); |
| 13 var set2 = new Set<B>(); |
| 14 var list = <B>[ const B() ]; |
| 15 var set3 = list.toSet(); |
| 16 |
| 17 var setOther = new Set<A>(); |
| 18 setOther.add(new A()); |
| 19 var sets = [set1, set2, set3]; |
| 20 for (var setToTest in sets) { |
| 21 // Test that the set accepts another set that is not of the same type: |
| 22 // Set<B>.intersection(Set<A>) |
| 23 Set result = setToTest.intersection(setOther); |
| 24 Expect.isTrue(result.isEmpty); |
| 25 } |
| 26 } |
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