| // Copyright (c) 2013, 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 "package:expect/expect.dart"; |
| |
| main() { |
| List<int> list1 = <int>[1, 2, 3]; |
| List<int> list2 = const <int>[4, 5]; |
| List<String> list3 = <String>[]; |
| Set<int> set1 = new Set<int>(); |
| set1.addAll([11, 12, 13]); |
| Set set2 = new Set(); |
| |
| Iterable mapped = list1.map((x) => x + 1); |
| Expect.listEquals([2, 3, 4], mapped.toList()); |
| |
| mapped = mapped.map((x) => x + 1); |
| Expect.listEquals([3, 4, 5], mapped.toList()); |
| |
| mapped = list2.map((x) => x + 1); |
| Expect.listEquals([5, 6], mapped.toList()); |
| |
| mapped = mapped.map((x) => x + 1); |
| Expect.listEquals([6, 7], mapped.toList()); |
| |
| mapped = list3.map((x) => x + 1); //# 01: compile-time error |
| Expect.listEquals([], mapped.toList()); //# 01: continued |
| |
| mapped = mapped.map((x) => x + 1); //# 01: continued |
| Expect.listEquals([], mapped.toList()); //# 01: continued |
| |
| var expected = new Set<int>()..addAll([12, 13, 14]); |
| mapped = set1.map((x) => x + 1); |
| Expect.isFalse(mapped is List); |
| Expect.setEquals(expected, mapped.toSet()); |
| |
| expected = new Set<int>()..addAll([13, 14, 15]); |
| mapped = mapped.map((x) => x + 1); |
| Expect.isFalse(mapped is List); |
| Expect.setEquals(expected, mapped.toSet()); |
| |
| mapped = set2.map((x) => x + 1); |
| Expect.isFalse(mapped is List); |
| Expect.listEquals([], mapped.toList()); |
| |
| mapped = mapped.map((x) => x + 1); |
| Expect.isFalse(mapped is List); |
| Expect.listEquals([], mapped.toList()); |
| } |