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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>
67 lines
1.9 KiB
Dart
67 lines
1.9 KiB
Dart
// Copyright (c) 2013, 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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import "package:expect/expect.dart";
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import 'dart:async';
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import 'dart:convert';
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import 'unicode_tests.dart';
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import "package:async_helper/async_helper.dart";
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Stream<String> decode(List<int> bytes, int chunkSize) {
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var controller;
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controller = new StreamController<List<int>>(onListen: () {
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int i = 0;
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while (i < bytes.length) {
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List nextChunk = <int>[];
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for (int j = 0; j < chunkSize; j++) {
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if (i < bytes.length) {
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nextChunk.add(bytes[i]);
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i++;
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}
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}
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controller.add(nextChunk);
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}
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controller.close();
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});
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return controller.stream.transform(utf8.decoder);
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}
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testUnpaused(String expected, Stream stream) {
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asyncStart();
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stream.toList().then((list) {
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StringBuffer buffer = new StringBuffer();
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buffer.writeAll(list);
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Expect.stringEquals(expected, buffer.toString());
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asyncEnd();
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});
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}
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testWithPauses(String expected, Stream stream) {
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asyncStart();
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StringBuffer buffer = new StringBuffer();
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var sub;
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sub = stream.listen((x) {
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buffer.write(x);
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sub.pause(new Future.delayed(Duration.zero));
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}, onDone: () {
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Expect.stringEquals(expected, buffer.toString());
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asyncEnd();
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});
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}
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main() {
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for (var test in UNICODE_TESTS) {
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var bytes = test[0];
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var expected = test[1];
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testUnpaused(expected, decode(bytes, 1));
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testWithPauses(expected, decode(bytes, 1));
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testUnpaused(expected, decode(bytes, 2));
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testWithPauses(expected, decode(bytes, 2));
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testUnpaused(expected, decode(bytes, 3));
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testWithPauses(expected, decode(bytes, 3));
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testUnpaused(expected, decode(bytes, 4));
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testWithPauses(expected, decode(bytes, 4));
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}
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}
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