lrn@google.com
3c0ac360e7
Make String.codeUnits return a List. Review URL: https://codereview.chromium.org//12282038 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@18960 260f80e4-7a28-3924-810f-c04153c831b5
31 lines
1.1 KiB
Dart
31 lines
1.1 KiB
Dart
// Copyright (c) 2012, 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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main() {
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Expect.equals("A", new String.fromCharCode(65));
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Expect.equals("B", new String.fromCharCode(66));
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var gClef = new String.fromCharCode(0x1D11E);
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Expect.equals(2, gClef.length);
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Expect.equals(0xD834, gClef.codeUnitAt(0));
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Expect.equals(0xDD1E, gClef.codeUnitAt(1));
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// Unmatched surrogates.
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var unmatched = new String.fromCharCode(0xD800);
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Expect.equals(1, unmatched.length);
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Expect.equals(0xD800, unmatched.codeUnitAt(0));
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unmatched = new String.fromCharCode(0xDC00);
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Expect.equals(1, unmatched.length);
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Expect.equals(0xDC00, unmatched.codeUnitAt(0));
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Expect.throws(() => new String.fromCharCode(-1),
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(e) => e is ArgumentError);
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// Invalid code point.
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Expect.throws(() => new String.fromCharCode(0x110000),
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(e) => e is ArgumentError);
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Expect.throws(() => new String.fromCharCode(0x110001),
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(e) => e is ArgumentError);
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}
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