git.r.bdr.sh - rbdr/dotfiles/blob - atom/packages/vim-mode/node_modules/grim/node_modules/emissary/node_modules/es6-weak-map/node_modules/es5-ext/test/string/#/at.js

   1 // See tests at https://github.com/mathiasbynens/String.prototype.at
   2
   3 'use strict';
   4
   5 module.exports = function (t, a) {
   6         a(t.length, 1, "Length");
   7
   8         a.h1("BMP");
   9         a(t.call('abc\uD834\uDF06def', -Infinity), '', "-Infinity");
  10         a(t.call('abc\uD834\uDF06def', -1), '', "-1");
  11         a(t.call('abc\uD834\uDF06def', -0), 'a', "-0");
  12         a(t.call('abc\uD834\uDF06def', +0), 'a', "+0");
  13         a(t.call('abc\uD834\uDF06def', 1), 'b', "1");
  14         a(t.call('abc\uD834\uDF06def', 3), '\uD834\uDF06', "3");
  15         a(t.call('abc\uD834\uDF06def', 4), '\uDF06', "4");
  16         a(t.call('abc\uD834\uDF06def', 5), 'd', "5");
  17         a(t.call('abc\uD834\uDF06def', 42), '', "42");
  18         a(t.call('abc\uD834\uDF06def', +Infinity), '', "+Infinity");
  19         a(t.call('abc\uD834\uDF06def', null), 'a', "null");
  20         a(t.call('abc\uD834\uDF06def', undefined), 'a', "undefined");
  21         a(t.call('abc\uD834\uDF06def'), 'a', "No argument");
  22         a(t.call('abc\uD834\uDF06def', false), 'a', "false");
  23         a(t.call('abc\uD834\uDF06def', NaN), 'a', "NaN");
  24         a(t.call('abc\uD834\uDF06def', ''), 'a', "Empty string");
  25         a(t.call('abc\uD834\uDF06def', '_'), 'a', "_");
  26         a(t.call('abc\uD834\uDF06def', '1'), 'b', "'1'");
  27         a(t.call('abc\uD834\uDF06def', []), 'a', "[]");
  28         a(t.call('abc\uD834\uDF06def', {}), 'a', "{}");
  29         a(t.call('abc\uD834\uDF06def', -0.9), 'a', "-0.9");
  30         a(t.call('abc\uD834\uDF06def', 1.9), 'b', "1.9");
  31         a(t.call('abc\uD834\uDF06def', 7.9), 'f', "7.9");
  32         a(t.call('abc\uD834\uDF06def', Math.pow(2, 32)), '', "Big number");
  33
  34         a.h1("Astral symbol");
  35         a(t.call('\uD834\uDF06def', -Infinity), '', "-Infinity");
  36         a(t.call('\uD834\uDF06def', -1), '', "-1");
  37         a(t.call('\uD834\uDF06def', -0), '\uD834\uDF06', "-0");
  38         a(t.call('\uD834\uDF06def', +0), '\uD834\uDF06', "+0");
  39         a(t.call('\uD834\uDF06def', 1), '\uDF06', "1");
  40         a(t.call('\uD834\uDF06def', 2), 'd', "2");
  41         a(t.call('\uD834\uDF06def', 3), 'e', "3");
  42         a(t.call('\uD834\uDF06def', 4), 'f', "4");
  43         a(t.call('\uD834\uDF06def', 42), '', "42");
  44         a(t.call('\uD834\uDF06def', +Infinity), '', "+Infinity");
  45         a(t.call('\uD834\uDF06def', null), '\uD834\uDF06', "null");
  46         a(t.call('\uD834\uDF06def', undefined), '\uD834\uDF06', "undefined");
  47         a(t.call('\uD834\uDF06def'), '\uD834\uDF06', "No arguments");
  48         a(t.call('\uD834\uDF06def', false), '\uD834\uDF06', "false");
  49         a(t.call('\uD834\uDF06def', NaN), '\uD834\uDF06', "NaN");
  50         a(t.call('\uD834\uDF06def', ''), '\uD834\uDF06', "Empty string");
  51         a(t.call('\uD834\uDF06def', '_'), '\uD834\uDF06', "_");
  52         a(t.call('\uD834\uDF06def', '1'), '\uDF06', "'1'");
  53
  54         a.h1("Lone high surrogates");
  55         a(t.call('\uD834abc', -Infinity), '', "-Infinity");
  56         a(t.call('\uD834abc', -1), '',  "-1");
  57         a(t.call('\uD834abc', -0), '\uD834', "-0");
  58         a(t.call('\uD834abc', +0), '\uD834', "+0");
  59         a(t.call('\uD834abc', 1), 'a', "1");
  60         a(t.call('\uD834abc', 42), '', "42");
  61         a(t.call('\uD834abc', +Infinity), '', "Infinity");
  62         a(t.call('\uD834abc', null), '\uD834', "null");
  63         a(t.call('\uD834abc', undefined), '\uD834', "undefined");
  64         a(t.call('\uD834abc'), '\uD834', "No arguments");
  65         a(t.call('\uD834abc', false), '\uD834', "false");
  66         a(t.call('\uD834abc', NaN), '\uD834', "NaN");
  67         a(t.call('\uD834abc', ''), '\uD834', "Empty string");
  68         a(t.call('\uD834abc', '_'), '\uD834', "_");
  69         a(t.call('\uD834abc', '1'), 'a', "'a'");
  70
  71         a.h1("Lone low surrogates");
  72         a(t.call('\uDF06abc', -Infinity), '', "-Infinity");
  73         a(t.call('\uDF06abc', -1), '', "-1");
  74         a(t.call('\uDF06abc', -0), '\uDF06', "-0");
  75         a(t.call('\uDF06abc', +0), '\uDF06', "+0");
  76         a(t.call('\uDF06abc', 1), 'a', "1");
  77         a(t.call('\uDF06abc', 42), '', "42");
  78         a(t.call('\uDF06abc', +Infinity), '', "+Infinity");
  79         a(t.call('\uDF06abc', null), '\uDF06', "null");
  80         a(t.call('\uDF06abc', undefined), '\uDF06', "undefined");
  81         a(t.call('\uDF06abc'), '\uDF06', "No arguments");
  82         a(t.call('\uDF06abc', false), '\uDF06', "false");
  83         a(t.call('\uDF06abc', NaN), '\uDF06', "NaN");
  84         a(t.call('\uDF06abc', ''), '\uDF06', "Empty string");
  85         a(t.call('\uDF06abc', '_'), '\uDF06', "_");
  86         a(t.call('\uDF06abc', '1'), 'a', "'1'");
  87
  88         a.h1("Context");
  89         a.throws(function () { t.call(undefined); }, TypeError, "Undefined");
  90         a.throws(function () { t.call(undefined, 4); }, TypeError,
  91                 "Undefined + argument");
  92         a.throws(function () { t.call(null); }, TypeError, "Null");
  93         a.throws(function () { t.call(null, 4); }, TypeError, "Null + argument");
  94         a(t.call(42, 0), '4', "Number #1");
  95         a(t.call(42, 1), '2', "Number #2");
  96         a(t.call({ toString: function () { return 'abc'; } }, 2), 'c', "Object");
  97 };