| // Copyright (c) 2019, 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 An if element: |
| /// ... |
| /// The expansion is: |
| /// - The then element if the condition expression evaluates to true. |
| /// - The else element if the condition is false and there is one. |
| /// - Otherwise, the if element expands to nothing. |
| /// |
| /// @description Checks that if element expands to nothing if the condition |
| /// evaluates to false and the else expression is not exist. |
| /// @author ngl@unipro.ru |
| |
| import "../../Utils/expect.dart"; |
| |
| main() { |
| const t = false; |
| List<int> list1 = const [if (t) 1, 11]; |
| Expect.listEquals([11], list1); |
| const List<int> list2 = [if (t) 2, 12]; |
| Expect.listEquals([12], list2); |
| var list3 = const [if (t) 3, 13]; |
| Expect.listEquals([13], list3); |
| var list4 = const <int>[if (t) 4, 14]; |
| Expect.listEquals([14], list4); |
| const list5 = [if (t) 5, 15]; |
| Expect.listEquals([15], list5); |
| |
| Set<int> set1 = const {if (t) 1, -1}; |
| Expect.setEquals({-1}, set1); |
| const Set<int> set2 = {if (t) 2, -2}; |
| Expect.setEquals({-2}, set2); |
| var set3 = const {if (t) 3, -3}; |
| Expect.setEquals({-3}, set3); |
| var set4 = const <int>{if (t) 4, -4}; |
| Expect.setEquals({-4}, set4); |
| const set5 = {if (t) 5, -5}; |
| Expect.setEquals({-5}, set5); |
| |
| Map<int, String> map1 = const {if (t) 1: "1x", 11: "x1"}; |
| Expect.mapEquals({11: "x1"}, map1); |
| const Map<int, String> map2 = {if (t) 2: "2x", 12: "x2"}; |
| Expect.mapEquals({12: "x2"}, map2); |
| var map3 = const {if (t) 3: "3x", 13: "x3"}; |
| Expect.mapEquals({13: "x3"}, map3); |
| var map4 = const <int, String>{if (t) 4: "4x", 14: "x4"}; |
| Expect.mapEquals({14: "x4"}, map4); |
| const map5 = {if (t) 5: "5x", 15: "x5"}; |
| Expect.mapEquals({15: "x5"}, map5); |
| } |