blob: c653fa81ffb8676d9792adcd270832a328bf39db [file] [log] [blame]
// 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);