Files
plezy/test/mpv/mpv_node_decoder_test.dart

80 lines
2.9 KiB
Dart

import 'package:flutter_test/flutter_test.dart';
import 'package:plezy/mpv/player/mpv_node_decoder.dart';
void main() {
const nestedList = [
{
'type': 'audio',
'metadata': {
'values': [true, 2, 3.5, null],
},
},
];
const nestedMap = {
'cache-end': 12.5,
'seekable-ranges': [
{'start': 1, 'end': 9.25},
],
};
final cases = <({String name, Object? input, Object? list, Object? map})>[
(name: 'nested structured list', input: nestedList, list: nestedList, map: null),
(name: 'nested structured map', input: nestedMap, list: null, map: nestedMap),
(
name: 'valid list JSON',
input: '[{"type":"audio","metadata":{"values":[true,2,3.5,null]}}]',
list: nestedList,
map: null,
),
(
name: 'valid map JSON',
input: '{"cache-end":12.5,"seekable-ranges":[{"start":1,"end":9.25}]}',
list: null,
map: nestedMap,
),
(name: 'malformed JSON', input: '{not-json', list: null, map: null),
(name: 'JSON scalar', input: '42', list: null, map: null),
(name: 'structured scalar', input: 42, list: null, map: null),
(name: 'empty string', input: '', list: null, map: null),
(name: 'null', input: null, list: null, map: null),
(name: 'JSON null', input: 'null', list: null, map: null),
(name: 'empty structured list', input: const [], list: const [], map: null),
(name: 'empty structured map', input: const {}, list: null, map: const {}),
(name: 'empty JSON list', input: '[]', list: const [], map: null),
(name: 'empty JSON map', input: '{}', list: null, map: const {}),
];
for (final testCase in cases) {
test(testCase.name, () {
expect(MpvNodeDecoder.decodeList(testCase.input), testCase.list);
expect(MpvNodeDecoder.decodeMap(testCase.input), testCase.map);
});
}
test('rejects hostile structured payloads before traversal', () {
Object? acceptedDepth = 'leaf';
for (var i = 0; i < 31; i++) {
acceptedDepth = [acceptedDepth];
}
expect(MpvNodeDecoder.decodeList(acceptedDepth), isNotNull);
Object? excessiveDepth = acceptedDepth;
excessiveDepth = [excessiveDepth];
expect(MpvNodeDecoder.decodeList(excessiveDepth), isNull);
expect(MpvNodeDecoder.decodeList(List<Object?>.filled(16384, null)), isNull);
expect(MpvNodeDecoder.decodeList([double.nan]), isNull);
expect(MpvNodeDecoder.decodeMap({1: 'non-string key'}), isNull);
});
test('preflights deeply nested and oversized JSON', () {
final deepestAccepted = '${List.filled(31, '[').join()}null${List.filled(31, ']').join()}';
final tooDeep = '[$deepestAccepted]';
expect(MpvNodeDecoder.decodeList(deepestAccepted), isNotNull);
expect(MpvNodeDecoder.decodeList(tooDeep), isNull);
final tooManyEntries = '[${List.filled(16385, 'null').join(',')}]';
expect(MpvNodeDecoder.decodeList(tooManyEntries), isNull);
expect(MpvNodeDecoder.decodeList('["brackets [ and braces { stay quoted"]'), isNotNull);
});
}