Robert Nystrom
a323c55162
Change-Id: I4d492a63a41880ef8cd69321372a4853825b9efd Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/426321 Reviewed-by: Liam Appelbe <liama@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Commit-Queue: Liam Appelbe <liama@google.com>
53 lines
1.7 KiB
Dart
53 lines
1.7 KiB
Dart
// Copyright (c) 2015, 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 'dart:io';
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import 'dart:convert';
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import "package:expect/expect.dart";
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// This only works reliably for "ASCII" cross platform as that is the only
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// well known part of the default Windows code page.
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void testEncodeDecode(String str) {
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Expect.equals(systemEncoding.decode(systemEncoding.encode(str)), str);
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}
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// This only works reliably for "ASCII" cross platform as that is the only
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// common set of bytes between UTF-8 Windows code pages that convert back
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// and forth.
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void testDecodeEncode(List<int> bytes) {
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Expect.listEquals(systemEncoding.encode(systemEncoding.decode(bytes)), bytes);
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}
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void test(List<int> bytes) {
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var str = new String.fromCharCodes(bytes);
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Expect.equals(systemEncoding.decode(bytes), str);
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Expect.listEquals(systemEncoding.encode(str), bytes);
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testDecodeEncode(bytes);
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testEncodeDecode(str);
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}
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main() {
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test([65, 66, 67]);
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test([65, 0, 67]);
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test([0, 65, 0, 67, 0]);
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test([0, 0, 0]);
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test(new Iterable.generate(128, (i) => i).toList());
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if (Platform.isWindows) {
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// On Windows the default Windows code page cannot encode these
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// Unicode characters and the ? character is used.
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Expect.listEquals(
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systemEncoding.encode('\u1234\u5678\u9abc'),
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'???'.codeUnits,
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);
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} else {
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// On all systems except for Windows UTF-8 is used as the system
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// encoding.
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Expect.listEquals(
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systemEncoding.encode('\u1234\u5678\u9abc'),
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utf8.encode('\u1234\u5678\u9abc'),
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);
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}
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}
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