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b05a57d5f3
Change-Id: I04e64359acb95c63d1b5dc5c7fdfaadcb6c55fd9 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/130965 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
59 lines
1.5 KiB
Dart
59 lines
1.5 KiB
Dart
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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library json_tests;
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import 'package:expect/expect.dart';
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import 'dart:convert';
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class A {
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final x;
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A(this.x);
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}
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Object? toEncodable(dynamic a) => {"A": (a as A).x};
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reviver(key, value) {
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if (value is Map && value.length == 1 && value["A"] != null) {
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return new A(value["A"]);
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}
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return value;
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}
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const extendedJson =
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const JsonCodec(toEncodable: toEncodable, reviver: reviver);
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main() {
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var encoded = extendedJson.encode([
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new A(0),
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{"2": new A(1)}
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]);
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Expect.equals('[{"A":0},{"2":{"A":1}}]', encoded);
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var decoded = extendedJson.decode(encoded);
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Expect.isTrue(decoded is List);
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Expect.equals(2, decoded.length);
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Expect.isTrue(decoded[0] is A);
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Expect.equals(0, decoded[0].x);
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Expect.isTrue(decoded[1] is Map);
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Expect.isNotNull(decoded[1]["2"]);
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Expect.isTrue(decoded[1]["2"] is A);
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Expect.equals(1, decoded[1]["2"].x);
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var a = extendedJson.decode(extendedJson.encode(new A(499)));
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Expect.isTrue(a is A);
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Expect.equals(499, a.x);
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testInvalidMap();
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}
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void testInvalidMap() {
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var map = {"a": 42, "b": 42, 37: 42}; // Non-string key.
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var enc = new JsonEncoder((_) => "fixed");
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var res = enc.convert(map);
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Expect.equals('"fixed"', res);
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enc = new JsonEncoder.withIndent(" ", (_) => "fixed");
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res = enc.convert(map);
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Expect.equals('"fixed"', res);
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}
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