git.r.bdr.sh - rbdr/dotfiles/blob

   1 // Taken from: https://github.com/mathiasbynens/String.fromCodePoint/blob/master
   2 //             /tests/tests.js
   3
   4 'use strict';
   5
   6 var pow = Math.pow;
   7
   8 module.exports = function (t, a) {
   9         var counter, result;
  10
  11         a(t.length, 1, "Length");
  12         a(String.propertyIsEnumerable('fromCodePoint'), false, "Not enumerable");
  13
  14         a(t(''), '\0', "Empty string");
  15         a(t(), '', "No arguments");
  16         a(t(-0), '\0', "-0");
  17         a(t(0), '\0', "0");
  18         a(t(0x1D306), '\uD834\uDF06', "Unicode");
  19         a(t(0x1D306, 0x61, 0x1D307), '\uD834\uDF06a\uD834\uDF07', "Complex unicode");
  20         a(t(0x61, 0x62, 0x1D307), 'ab\uD834\uDF07', "Complex");
  21         a(t(false), '\0', "false");
  22         a(t(null), '\0', "null");
  23
  24         a.throws(function () { t('_'); }, RangeError, "_");
  25         a.throws(function () { t(Infinity); }, RangeError, "Infinity");
  26         a.throws(function () { t(-Infinity); }, RangeError, "-Infinity");
  27         a.throws(function () { t(-1); }, RangeError, "-1");
  28         a.throws(function () { t(0x10FFFF + 1); }, RangeError, "Range error #1");
  29         a.throws(function () { t(3.14); }, RangeError, "Range error #2");
  30         a.throws(function () { t(3e-2); }, RangeError, "Range error #3");
  31         a.throws(function () { t(-Infinity); }, RangeError, "Range error #4");
  32         a.throws(function () { t(+Infinity); }, RangeError, "Range error #5");
  33         a.throws(function () { t(NaN); }, RangeError, "Range error #6");
  34         a.throws(function () { t(undefined); }, RangeError, "Range error #7");
  35         a.throws(function () { t({}); }, RangeError, "Range error #8");
  36         a.throws(function () { t(/re/); }, RangeError, "Range error #9");
  37
  38         counter = pow(2, 15) * 3 / 2;
  39         result = [];
  40         while (--counter >= 0) result.push(0); // one code unit per symbol
  41         t.apply(null, result); // must not throw
  42
  43         counter = pow(2, 15) * 3 / 2;
  44         result = [];
  45         while (--counter >= 0) result.push(0xFFFF + 1); // two code units per symbol
  46         t.apply(null, result); // must not throw
  47 };