1// Copyright 2014 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Tests taken from:
6// https://github.com/mathiasbynens/String.fromCodePoint
7
8assertEquals(String.fromCodePoint.length, 1);
9assertEquals(String.propertyIsEnumerable("fromCodePoint"), false);
10
11assertEquals(String.fromCodePoint(""), "\0");
12assertEquals(String.fromCodePoint(), "");
13assertEquals(String.fromCodePoint(-0), "\0");
14assertEquals(String.fromCodePoint(0), "\0");
15assertEquals(String.fromCodePoint(0x1D306), "\uD834\uDF06");
16assertEquals(
17    String.fromCodePoint(0x1D306, 0x61, 0x1D307),
18    "\uD834\uDF06a\uD834\uDF07");
19assertEquals(String.fromCodePoint(0x61, 0x62, 0x1D307), "ab\uD834\uDF07");
20assertEquals(String.fromCodePoint(false), "\0");
21assertEquals(String.fromCodePoint(null), "\0");
22
23assertThrows(function() { String.fromCodePoint("_"); }, RangeError);
24assertThrows(function() { String.fromCodePoint("+Infinity"); }, RangeError);
25assertThrows(function() { String.fromCodePoint("-Infinity"); }, RangeError);
26assertThrows(function() { String.fromCodePoint(-1); }, RangeError);
27assertThrows(function() { String.fromCodePoint(0x10FFFF + 1); }, RangeError);
28assertThrows(function() { String.fromCodePoint(3.14); }, RangeError);
29assertThrows(function() { String.fromCodePoint(3e-2); }, RangeError);
30assertThrows(function() { String.fromCodePoint(-Infinity); }, RangeError);
31assertThrows(function() { String.fromCodePoint(+Infinity); }, RangeError);
32assertThrows(function() { String.fromCodePoint(NaN); }, RangeError);
33assertThrows(function() { String.fromCodePoint(undefined); }, RangeError);
34assertThrows(function() { String.fromCodePoint({}); }, RangeError);
35assertThrows(function() { String.fromCodePoint(/./); }, RangeError);
36assertThrows(function() { String.fromCodePoint({
37  valueOf: function() { throw Error(); } });
38}, Error);
39assertThrows(function() { String.fromCodePoint({
40  valueOf: function() { throw Error(); } });
41}, Error);
42var tmp = 0x60;
43assertEquals(String.fromCodePoint({
44  valueOf: function() { ++tmp; return tmp; }
45}), "a");
46assertEquals(tmp, 0x61);
47
48var counter = Math.pow(2, 15) * 3 / 2;
49var result = [];
50while (--counter >= 0) {
51  result.push(0); // one code unit per symbol
52}
53String.fromCodePoint.apply(null, result); // must not throw
54
55var counter = Math.pow(2, 15) * 3 / 2;
56var result = [];
57while (--counter >= 0) {
58  result.push(0xFFFF + 1); // two code units per symbol
59}
60String.fromCodePoint.apply(null, result); // must not throw
61