Lasse R.H. Nielsen
6bc7288e70
The VM version's parser did not allow a leading BOM, and it failed to parse a top-level integer. Added test to check this. Fixes #33251 Bug: http://dartbug.com/33251 Change-Id: I51e429082f0e9baac81e20f73b0885922b40b0b8 Reviewed-on: https://dart-review.googlesource.com/56860 Commit-Queue: Lasse R.H. Nielsen <lrn@google.com> Reviewed-by: Florian Loitsch <floitsch@google.com>
78 lines
2.3 KiB
Dart
78 lines
2.3 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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// Test that the fused UTF-8/JSON decoder accepts a leading BOM.
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library test;
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import "package:expect/expect.dart";
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import "dart:convert";
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void main() {
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for (var parse in [parseFuse, parseSequence, parseChunked]) {
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// Sanity checks.
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Expect.isTrue(parse('true'.codeUnits.toList()));
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Expect.isFalse(parse('false'.codeUnits.toList()));
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Expect.equals(123, parse('123'.codeUnits.toList()));
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Expect.listEquals([42], parse('[42]'.codeUnits.toList()));
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Expect.mapEquals({"x": 42}, parse('{"x":42}'.codeUnits.toList()));
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// String (0x22 = ") with UTF-8 encoded Unicode characters.
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Expect.equals(
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"A\xff\u1234\u{65555}",
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parse([
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0x22,
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0x41,
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0xc3,
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0xbf,
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0xe1,
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0x88,
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0xb4,
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0xf1,
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0xa5,
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0x95,
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0x95,
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0x22
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]));
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// BOM followed by true.
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Expect.isTrue(parse([0xEF, 0xBB, 0xBF, 0x74, 0x72, 0x75, 0x65]));
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}
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// Do not accept BOM in non-UTF-8 decoder.
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Expect.throws<FormatException>(
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() => new JsonDecoder().convert("\xEF\xBB\xBFtrue"));
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Expect.throws<FormatException>(() => new JsonDecoder().convert("\uFEFFtrue"));
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// Only accept BOM first.
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Expect.throws<FormatException>(
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() => parseFuse(" \xEF\xBB\xBFtrue".codeUnits.toList()));
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// Only accept BOM first.
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Expect.throws<FormatException>(
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() => parseFuse(" true\xEF\xBB\xBF".codeUnits.toList()));
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Expect.throws<FormatException>(
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() => parseFuse(" [\xEF\xBB\xBF]".codeUnits.toList()));
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}
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Object parseFuse(List<int> text) {
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return new Utf8Decoder().fuse(new JsonDecoder()).convert(text);
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}
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Object parseSequence(List<int> text) {
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return new JsonDecoder().convert(new Utf8Decoder().convert(text));
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}
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Object parseChunked(List<int> text) {
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var result;
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var sink = new Utf8Decoder().fuse(new JsonDecoder()).startChunkedConversion(
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new ChunkedConversionSink.withCallback((List<Object> values) {
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result = values[0];
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}));
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for (var i = 0; i < text.length; i++) {
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sink.add([text[i]]);
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}
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sink.close();
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return result;
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}
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