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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
67 lines
2.5 KiB
JavaScript
67 lines
2.5 KiB
JavaScript
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Tests taken from:
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// https://github.com/mathiasbynens/String.fromCodePoint
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// Flags: --allow-natives-syntax
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assertEquals(String.fromCodePoint.length, 1);
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assertEquals(String.propertyIsEnumerable("fromCodePoint"), false);
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assertEquals(String.fromCodePoint(""), "\0");
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assertEquals(String.fromCodePoint(), "");
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assertEquals(String.fromCodePoint(-0), "\0");
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assertEquals(String.fromCodePoint(0), "\0");
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assertEquals(String.fromCodePoint(0x1D306), "\uD834\uDF06");
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assertEquals(
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String.fromCodePoint(0x1D306, 0x61, 0x1D307),
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"\uD834\uDF06a\uD834\uDF07");
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assertEquals(String.fromCodePoint(0x61, 0x62, 0x1D307), "ab\uD834\uDF07");
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assertEquals(String.fromCodePoint(false), "\0");
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assertEquals(String.fromCodePoint(null), "\0");
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assertThrows(function () { String.fromCodePoint("_"); }, RangeError);
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assertThrows(function () { String.fromCodePoint("+Infinity"); }, RangeError);
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assertThrows(function () { String.fromCodePoint("-Infinity"); }, RangeError);
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assertThrows(function () { String.fromCodePoint(-1); }, RangeError);
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assertThrows(function () { String.fromCodePoint(0x10FFFF + 1); }, RangeError);
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assertThrows(function () { String.fromCodePoint(3.14); }, RangeError);
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assertThrows(function () { String.fromCodePoint(3e-2); }, RangeError);
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assertThrows(function () { String.fromCodePoint(-Infinity); }, RangeError);
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assertThrows(function () { String.fromCodePoint(+Infinity); }, RangeError);
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assertThrows(function () { String.fromCodePoint(NaN); }, RangeError);
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assertThrows(function () { String.fromCodePoint(undefined); }, RangeError);
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assertThrows(function () { String.fromCodePoint({}); }, RangeError);
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assertThrows(function () { String.fromCodePoint(/./); }, RangeError);
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assertThrows(function () {
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String.fromCodePoint({
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valueOf: function () { throw Error(); }
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});
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}, Error);
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assertThrows(function () {
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String.fromCodePoint({
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valueOf: function () { throw Error(); }
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});
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}, Error);
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var tmp = 0x60;
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assertEquals(String.fromCodePoint({
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valueOf: function () { ++tmp; return tmp; }
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}), "a");
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assertEquals(tmp, 0x61);
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var counter = Math.pow(2, 15) * 3 / 2;
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var result = [];
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while (--counter >= 0) {
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result.push(0); // one code unit per symbol
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}
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String.fromCodePoint.apply(null, result); // must not throw
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var counter = Math.pow(2, 15) * 3 / 2;
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var result = [];
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while (--counter >= 0) {
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result.push(0xFFFF + 1); // two code units per symbol
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}
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String.fromCodePoint.apply(null, result); // must not throw
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