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// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This file contains tests that are only supported by the Dart VM. For
// example, on the Web there's no way to express large integers.
@TestOn('!chrome')
import 'dart:typed_data';
import 'package:flutter/services.dart';
import '../flutter_test_alternative.dart';
import 'message_codecs_testing.dart';
void main() {
group('JSON message codec', () {
const MessageCodec<dynamic> json = JSONMessageCodec();
test('should encode and decode big numbers', () {
checkEncodeDecode<dynamic>(json, 9223372036854775807);
checkEncodeDecode<dynamic>(json, -9223372036854775807);
});
test('should encode and decode list with a big number', () {
final List<dynamic> message = <dynamic>[-7000000000000000007];
checkEncodeDecode<dynamic>(json, message);
});
});
group('Standard message codec', () {
const MessageCodec<dynamic> standard = StandardMessageCodec();
test('should encode integers correctly at boundary cases', () {
checkEncoding<dynamic>(
standard,
-0x7fffffff - 1,
<int>[3, 0x00, 0x00, 0x00, 0x80],
);
checkEncoding<dynamic>(
standard,
-0x7fffffff - 2,
<int>[4, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0xff],
);
checkEncoding<dynamic>(
standard,
0x7fffffff,
<int>[3, 0xff, 0xff, 0xff, 0x7f],
);
checkEncoding<dynamic>(
standard,
0x7fffffff + 1,
<int>[4, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00],
);
checkEncoding<dynamic>(
standard,
-0x7fffffffffffffff - 1,
<int>[4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80],
);
checkEncoding<dynamic>(
standard,
-0x7fffffffffffffff - 2,
<int>[4, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f],
);
checkEncoding<dynamic>(
standard,
0x7fffffffffffffff,
<int>[4, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f],
);
checkEncoding<dynamic>(
standard,
0x7fffffffffffffff + 1,
<int>[4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80],
);
});
test('should encode and decode big numbers', () {
checkEncodeDecode<dynamic>(standard, 9223372036854775807);
checkEncodeDecode<dynamic>(standard, -9223372036854775807);
});
test('should encode and decode a list containing big numbers', () {
final List<dynamic> message = <dynamic>[
-7000000000000000007,
Int64List.fromList(
<int>[-0x7fffffffffffffff - 1, 0, 0x7fffffffffffffff]),
];
checkEncodeDecode<dynamic>(standard, message);
});
});
}