| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| import "package:expect/expect.dart"; |
| |
| main() { |
| Expect.equals("A", new String.fromCharCode(65)); |
| Expect.equals("B", new String.fromCharCode(66)); |
| var gClef = new String.fromCharCode(0x1D11E); |
| Expect.equals(2, gClef.length); |
| Expect.equals(0xD834, gClef.codeUnitAt(0)); |
| Expect.equals(0xDD1E, gClef.codeUnitAt(1)); |
| |
| // Unmatched surrogates. |
| var unmatched = new String.fromCharCode(0xD800); |
| Expect.equals(1, unmatched.length); |
| Expect.equals(0xD800, unmatched.codeUnitAt(0)); |
| unmatched = new String.fromCharCode(0xDC00); |
| Expect.equals(1, unmatched.length); |
| Expect.equals(0xDC00, unmatched.codeUnitAt(0)); |
| |
| Expect.throws(() => new String.fromCharCode(-1), |
| (e) => e is ArgumentError); |
| |
| // Invalid code point. |
| Expect.throws(() => new String.fromCharCode(0x110000), |
| (e) => e is ArgumentError); |
| |
| Expect.throws(() => new String.fromCharCode(0x110001), |
| (e) => e is ArgumentError); |
| } |