| // 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. |
| |
| // @dart = 2.9 |
| |
| /// @assertion A runtime map literal <K, V>{k1: e1...kn: en} is evaluated as |
| /// follows: |
| /// • First, the expression ki is evaluated yielding object ui, the ei is |
| /// evaluated yielding object oi, for i ∈ 1..n in left to right order, yielding |
| /// objects u1; o1 ... un; on. |
| /// • A fresh instance m whose class implements the built-in class Map<K, V> is |
| /// allocated. |
| /// • The operator []= is invoked on m with first argument ui and second argument |
| /// oi, i ∈ 1..n. |
| /// • The result of the evaluation is m. |
| /// @description Checks that entries with keys ui and values oi are added to the |
| /// resulted map object. |
| /// @author msyabro |
| /// @reviewer kaigorodov |
| |
| import '../../../Utils/expect.dart'; |
| |
| main() { |
| var m = {"k1": 1, "k2": 2, "k3": 3, "k4": "4"}; |
| Expect.isTrue(m.containsKey("k1")); |
| Expect.equals(1, m["k1"]); |
| Expect.isTrue(m.containsKey("k2")); |
| Expect.equals(2, m["k2"]); |
| Expect.isTrue(m.containsKey("k3")); |
| Expect.equals(3, m["k3"]); |
| Expect.isTrue(m.containsKey("k4")); |
| Expect.equals("4", m["k4"]); |
| |
| m = {}; |
| Expect.isTrue(m.isEmpty); |
| |
| m = <String, bool>{"true": 1 > 2, "false": true || false}; |
| Expect.isTrue(m.containsKey("true")); |
| Expect.equals(false, m["true"]); |
| Expect.isTrue(m.containsKey("false")); |
| Expect.equals(true, m["false"]); |
| |
| var x = 1; |
| var y = 2; |
| m = {"$x": 1, "$y": 2}; |
| Expect.isTrue(m.containsKey("1")); |
| Expect.equals(1, m["1"]); |
| Expect.isTrue(m.containsKey("2")); |
| Expect.equals(2, m["2"]); |
| } |