tests/qunit/suites/resources/mediawiki/mediawiki.String.byteLength.test.js

   1 ( function () {
   2         var byteLength = require( 'mediawiki.String' ).byteLength;
   3
   4         QUnit.module( 'mediawiki.String.byteLength', QUnit.newMwEnvironment() );
   5
   6         QUnit.test( 'Simple text', function ( assert ) {
   7                 var azLc = 'abcdefghijklmnopqrstuvwxyz',
   8                         azUc = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
   9                         num = '0123456789',
  10                         x = '*',
  11                         space = '   ';
  12
  13                 assert.equal( byteLength( azLc ), 26, 'Lowercase a-z' );
  14                 assert.equal( byteLength( azUc ), 26, 'Uppercase A-Z' );
  15                 assert.equal( byteLength( num ), 10, 'Numbers 0-9' );
  16                 assert.equal( byteLength( x ), 1, 'An asterisk' );
  17                 assert.equal( byteLength( space ), 3, '3 spaces' );
  18
  19         } );
  20
  21         QUnit.test( 'Special text', function ( assert ) {
  22                 // https://en.wikipedia.org/wiki/UTF-8
  23                 var u0024 = '$',
  24                         // Cent symbol
  25                         u00A2 = '\u00A2',
  26                         // Euro symbol
  27                         u20AC = '\u20AC',
  28                         // Character \U00024B62 (Han script) can't be represented in javascript as a single
  29                         // code point, instead it is composed as a surrogate pair of two separate code units.
  30                         // http://codepoints.net/U+24B62
  31                         // http://www.fileformat.info/info/unicode/char/24B62/index.htm
  32                         u024B62 = '\uD852\uDF62';
  33
  34                 assert.strictEqual( byteLength( u0024 ), 1, 'U+0024' );
  35                 assert.strictEqual( byteLength( u00A2 ), 2, 'U+00A2' );
  36                 assert.strictEqual( byteLength( u20AC ), 3, 'U+20AC' );
  37                 assert.strictEqual( byteLength( u024B62 ), 4, 'U+024B62 (surrogate pair: \\uD852\\uDF62)' );
  38         } );
  39 }() );