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

   1 /*jshint -W024 */
   2 ( function ( mw, $ ) {
   3         var specialCharactersPageName;
   4
   5         // Since QUnitTestResources.php loads both mediawiki and mediawiki.jqueryMsg as
   6         // dependencies, this only tests the monkey-patched behavior with the two of them combined.
   7
   8         // See mediawiki.jqueryMsg.test.js for unit tests for jqueryMsg-specific functionality.
   9
  10         QUnit.module( 'mediawiki', QUnit.newMwEnvironment( {
  11                 setup: function () {
  12                         specialCharactersPageName = '"Who" wants to be a millionaire & live on \'Exotic Island\'?';
  13                 },
  14                 config: {
  15                         wgArticlePath: '/wiki/$1',
  16
  17                         // For formatnum tests
  18                         wgUserLanguage: 'en'
  19                 },
  20                 // Messages used in multiple tests
  21                 messages: {
  22                         'other-message': 'Other Message',
  23                         'mediawiki-test-pagetriage-del-talk-page-notify-summary': 'Notifying author of deletion nomination for [[$1]]',
  24                         'gender-plural-msg': '{{GENDER:$1|he|she|they}} {{PLURAL:$2|is|are}} awesome',
  25                         'grammar-msg': 'Przeszukaj {{GRAMMAR:grammar_case_foo|{{SITENAME}}}}',
  26                         'formatnum-msg': '{{formatnum:$1}}',
  27                         'int-msg': 'Some {{int:other-message}}',
  28                         'mediawiki-test-version-entrypoints-index-php': '[https://www.mediawiki.org/wiki/Manual:index.php index.php]',
  29                         'external-link-replace': 'Foo [$1 bar]'
  30                 }
  31         } ) );
  32
  33         mw.loader.addSource(
  34                 'testloader',
  35                 {
  36                         loadScript: QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/load.mock.php' )
  37                 }
  38         );
  39
  40         QUnit.test( 'Initial check', 8, function ( assert ) {
  41                 assert.ok( window.jQuery, 'jQuery defined' );
  42                 assert.ok( window.$, '$ defined' );
  43                 assert.strictEqual( window.$, window.jQuery, '$ alias to jQuery' );
  44
  45                 this.suppressWarnings();
  46                 assert.ok( window.$j, '$j defined' );
  47                 assert.strictEqual( window.$j, window.jQuery, '$j alias to jQuery' );
  48                 this.restoreWarnings();
  49
  50                 // window.mw and window.mediaWiki are not deprecated, but for some reason
  51                 // PhantomJS is triggerring the accessors on all mw.* properties in this test,
  52                 // and with that lots of unrelated deprecation notices.
  53                 this.suppressWarnings();
  54                 assert.ok( window.mediaWiki, 'mediaWiki defined' );
  55                 assert.ok( window.mw, 'mw defined' );
  56                 assert.strictEqual( window.mw, window.mediaWiki, 'mw alias to mediaWiki' );
  57                 this.restoreWarnings();
  58         } );
  59
  60         QUnit.test( 'mw.Map', 28, function ( assert ) {
  61                 var arry, conf, funky, globalConf, nummy, someValues;
  62
  63                 conf = new mw.Map();
  64                 // Dummy variables
  65                 funky = function () {};
  66                 arry = [];
  67                 nummy = 7;
  68
  69                 // Single get and set
  70
  71                 assert.strictEqual( conf.set( 'foo', 'Bar' ), true, 'Map.set returns boolean true if a value was set for a valid key string' );
  72                 assert.equal( conf.get( 'foo' ), 'Bar', 'Map.get returns a single value value correctly' );
  73
  74                 assert.strictEqual( conf.get( 'example' ), null, 'Map.get returns null if selection was a string and the key was not found' );
  75                 assert.strictEqual( conf.get( 'example', arry ), arry, 'Map.get returns fallback by reference if the key was not found' );
  76                 assert.strictEqual( conf.get( 'example', undefined ), undefined, 'Map.get supports `undefined` as fallback instead of `null`' );
  77
  78                 assert.strictEqual( conf.get( 'constructor' ), null, 'Map.get does not look at Object.prototype of internal storage (constructor)' );
  79                 assert.strictEqual( conf.get( 'hasOwnProperty' ), null, 'Map.get does not look at Object.prototype of internal storage (hasOwnProperty)' );
  80
  81                 conf.set( 'hasOwnProperty', function () { return true; } );
  82                 assert.strictEqual( conf.get( 'example', 'missing' ), 'missing', 'Map.get uses neutral hasOwnProperty method (positive)' );
  83
  84                 conf.set( 'example', 'Foo' );
  85                 conf.set( 'hasOwnProperty', function () { return false; } );
  86                 assert.strictEqual( conf.get( 'example' ), 'Foo', 'Map.get uses neutral hasOwnProperty method (negative)' );
  87
  88                 assert.strictEqual( conf.set( 'constructor', 42 ), true, 'Map.set for key "constructor"' );
  89                 assert.strictEqual( conf.get( 'constructor' ), 42, 'Map.get for key "constructor"' );
  90
  91                 assert.strictEqual( conf.set( 'ImUndefined', undefined ), true, 'Map.set allows setting value to `undefined`' );
  92                 assert.equal( conf.get( 'ImUndefined', 'fallback' ), undefined, 'Map.get supports retreiving value of `undefined`' );
  93
  94                 assert.strictEqual( conf.set( funky, 'Funky' ), false, 'Map.set returns boolean false if key was invalid (Function)' );
  95                 assert.strictEqual( conf.set( arry, 'Arry' ), false, 'Map.set returns boolean false if key was invalid (Array)' );
  96                 assert.strictEqual( conf.set( nummy, 'Nummy' ), false, 'Map.set returns boolean false if key was invalid (Number)' );
  97
  98                 assert.strictEqual( conf.get( funky ), null, 'Map.get ruturns null if selection was invalid (Function)' );
  99                 assert.strictEqual( conf.get( nummy ), null, 'Map.get ruturns null if selection was invalid (Number)' );
 100
 101                 conf.set( String( nummy ), 'I used to be a number' );
 102
 103                 assert.strictEqual( conf.exists( 'doesNotExist' ), false, 'Map.exists where property does not exist' );
 104                 assert.strictEqual( conf.exists( 'ImUndefined' ), true, 'Map.exists where value is `undefined`' );
 105                 assert.strictEqual( conf.exists( nummy ), false, 'Map.exists where key is invalid but looks like an existing key' );
 106
 107                 // Multiple values at once
 108                 someValues = {
 109                         'foo': 'bar',
 110                         'lorem': 'ipsum',
 111                         'MediaWiki': true
 112                 };
 113                 assert.strictEqual( conf.set( someValues ), true, 'Map.set returns boolean true if multiple values were set by passing an object' );
 114                 assert.deepEqual( conf.get( ['foo', 'lorem'] ), {
 115                         'foo': 'bar',
 116                         'lorem': 'ipsum'
 117                 }, 'Map.get returns multiple values correctly as an object' );
 118
 119                 assert.deepEqual( conf, new mw.Map( conf.values ), 'new mw.Map maps over existing values-bearing object' );
 120
 121                 assert.deepEqual( conf.get( ['foo', 'notExist'] ), {
 122                         'foo': 'bar',
 123                         'notExist': null
 124                 }, 'Map.get return includes keys that were not found as null values' );
 125
 126                 // Interacting with globals and accessing the values object
 127                 assert.strictEqual( conf.get(), conf.values, 'Map.get returns the entire values object by reference (if called without arguments)' );
 128
 129                 conf.set( 'globalMapChecker', 'Hi' );
 130
 131                 assert.ok( 'globalMapChecker' in window === false, 'new mw.Map did not store its values in the global window object by default' );
 132
 133                 globalConf = new mw.Map( true );
 134                 globalConf.set( 'anotherGlobalMapChecker', 'Hello' );
 135
 136                 assert.ok( 'anotherGlobalMapChecker' in window, 'new mw.Map( true ) did store its values in the global window object' );
 137
 138                 // Whitelist this global variable for QUnit's 'noglobal' mode
 139                 if ( QUnit.config.noglobals ) {
 140                         QUnit.config.pollution.push( 'anotherGlobalMapChecker' );
 141                 }
 142         } );
 143
 144         QUnit.test( 'mw.config', 1, function ( assert ) {
 145                 assert.ok( mw.config instanceof mw.Map, 'mw.config instance of mw.Map' );
 146         } );
 147
 148         QUnit.test( 'mw.message & mw.messages', 100, function ( assert ) {
 149                 var goodbye, hello;
 150
 151                 // Convenience method for asserting the same result for multiple formats
 152                 function assertMultipleFormats( messageArguments, formats, expectedResult, assertMessage ) {
 153                         var len = formats.length, format, i;
 154                         for ( i = 0; i < len; i++ ) {
 155                                 format = formats[i];
 156                                 assert.equal( mw.message.apply( null, messageArguments )[format](), expectedResult, assertMessage + ' when format is ' + format );
 157                         }
 158                 }
 159
 160                 assert.ok( mw.messages, 'messages defined' );
 161                 assert.ok( mw.messages instanceof mw.Map, 'mw.messages instance of mw.Map' );
 162                 assert.ok( mw.messages.set( 'hello', 'Hello <b>awesome</b> world' ), 'mw.messages.set: Register' );
 163
 164                 hello = mw.message( 'hello' );
 165
 166                 // https://bugzilla.wikimedia.org/show_bug.cgi?id=44459
 167                 assert.equal( hello.format, 'text', 'Message property "format" defaults to "text"' );
 168
 169                 assert.strictEqual( hello.map, mw.messages, 'Message property "map" defaults to the global instance in mw.messages' );
 170                 assert.equal( hello.key, 'hello', 'Message property "key" (currect key)' );
 171                 assert.deepEqual( hello.parameters, [], 'Message property "parameters" defaults to an empty array' );
 172
 173                 // Todo
 174                 assert.ok( hello.params, 'Message prototype "params"' );
 175
 176                 hello.format = 'plain';
 177                 assert.equal( hello.toString(), 'Hello <b>awesome</b> world', 'Message.toString returns the message as a string with the current "format"' );
 178
 179                 assert.equal( hello.escaped(), 'Hello &lt;b&gt;awesome&lt;/b&gt; world', 'Message.escaped returns the escaped message' );
 180                 assert.equal( hello.format, 'escaped', 'Message.escaped correctly updated the "format" property' );
 181
 182                 assert.ok( mw.messages.set( 'multiple-curly-brace', '"{{SITENAME}}" is the home of {{int:other-message}}' ), 'mw.messages.set: Register' );
 183                 assertMultipleFormats( ['multiple-curly-brace'], ['text', 'parse'], '"' + mw.config.get( 'wgSiteName') + '" is the home of Other Message', 'Curly brace format works correctly' );
 184                 assert.equal( mw.message( 'multiple-curly-brace' ).plain(), mw.messages.get( 'multiple-curly-brace' ), 'Plain format works correctly for curly brace message' );
 185                 assert.equal( mw.message( 'multiple-curly-brace' ).escaped(), mw.html.escape( '"' + mw.config.get( 'wgSiteName') + '" is the home of Other Message' ), 'Escaped format works correctly for curly brace message' );
 186
 187                 assert.ok( mw.messages.set( 'multiple-square-brackets-and-ampersand', 'Visit the [[Project:Community portal|community portal]] & [[Project:Help desk|help desk]]' ), 'mw.messages.set: Register' );
 188                 assertMultipleFormats( ['multiple-square-brackets-and-ampersand'], ['plain', 'text'], mw.messages.get( 'multiple-square-brackets-and-ampersand' ), 'Square bracket message is not processed' );
 189                 assert.equal( mw.message( 'multiple-square-brackets-and-ampersand' ).escaped(), 'Visit the [[Project:Community portal|community portal]] &amp; [[Project:Help desk|help desk]]', 'Escaped format works correctly for square bracket message' );
 190                 assert.htmlEqual( mw.message( 'multiple-square-brackets-and-ampersand' ).parse(), 'Visit the ' +
 191                         '<a title="Project:Community portal" href="/wiki/Project:Community_portal">community portal</a>' +
 192                         ' &amp; <a title="Project:Help desk" href="/wiki/Project:Help_desk">help desk</a>', 'Internal links work with parse' );
 193
 194                 assertMultipleFormats( ['mediawiki-test-version-entrypoints-index-php'], ['plain', 'text', 'escaped'], mw.messages.get( 'mediawiki-test-version-entrypoints-index-php' ), 'External link markup is unprocessed' );
 195                 assert.htmlEqual( mw.message( 'mediawiki-test-version-entrypoints-index-php' ).parse(), '<a href="https://www.mediawiki.org/wiki/Manual:index.php">index.php</a>', 'External link works correctly in parse mode' );
 196
 197                 assertMultipleFormats( ['external-link-replace', 'http://example.org/?x=y&z'], ['plain', 'text'], 'Foo [http://example.org/?x=y&z bar]', 'Parameters are substituted but external link is not processed' );
 198                 assert.equal( mw.message( 'external-link-replace', 'http://example.org/?x=y&z' ).escaped(), 'Foo [http://example.org/?x=y&amp;z bar]', 'In escaped mode, parameters are substituted and ampersand is escaped, but external link is not processed' );
 199                 assert.htmlEqual( mw.message( 'external-link-replace', 'http://example.org/?x=y&z' ).parse(), 'Foo <a href="http://example.org/?x=y&amp;z">bar</a>', 'External link with replacement works in parse mode without double-escaping' );
 200
 201                 hello.parse();
 202                 assert.equal( hello.format, 'parse', 'Message.parse correctly updated the "format" property' );
 203
 204                 hello.plain();
 205                 assert.equal( hello.format, 'plain', 'Message.plain correctly updated the "format" property' );
 206
 207                 hello.text();
 208                 assert.equal( hello.format, 'text', 'Message.text correctly updated the "format" property' );
 209
 210                 assert.strictEqual( hello.exists(), true, 'Message.exists returns true for existing messages' );
 211
 212                 goodbye = mw.message( 'goodbye' );
 213                 assert.strictEqual( goodbye.exists(), false, 'Message.exists returns false for nonexistent messages' );
 214
 215                 assertMultipleFormats( ['goodbye'], ['plain', 'text'], '<goodbye>', 'Message.toString returns <key> if key does not exist' );
 216                 // bug 30684
 217                 assertMultipleFormats( ['goodbye'], ['parse', 'escaped'], '&lt;goodbye&gt;', 'Message.toString returns properly escaped &lt;key&gt; if key does not exist' );
 218
 219                 assert.ok( mw.messages.set( 'plural-test-msg', 'There {{PLURAL:$1|is|are}} $1 {{PLURAL:$1|result|results}}' ), 'mw.messages.set: Register' );
 220                 assertMultipleFormats( ['plural-test-msg', 6], ['text', 'parse', 'escaped'], 'There are 6 results', 'plural get resolved' );
 221                 assert.equal( mw.message( 'plural-test-msg', 6 ).plain(), 'There {{PLURAL:6|is|are}} 6 {{PLURAL:6|result|results}}', 'Parameter is substituted but plural is not resolved in plain' );
 222
 223                 assert.ok( mw.messages.set( 'plural-test-msg-explicit', 'There {{plural:$1|is one car|are $1 cars|0=are no cars|12=are a dozen cars}}' ), 'mw.messages.set: Register message with explicit plural forms' );
 224                 assertMultipleFormats( ['plural-test-msg-explicit', 12], ['text', 'parse', 'escaped'], 'There are a dozen cars', 'explicit plural get resolved' );
 225
 226                 assert.ok( mw.messages.set( 'plural-test-msg-explicit-beginning', 'Basket has {{plural:$1|0=no eggs|12=a dozen eggs|6=half a dozen eggs|one egg|$1 eggs}}' ), 'mw.messages.set: Register message with explicit plural forms' );
 227                 assertMultipleFormats( ['plural-test-msg-explicit-beginning', 1], ['text', 'parse', 'escaped'], 'Basket has one egg', 'explicit plural given at beginning get resolved for singular' );
 228                 assertMultipleFormats( ['plural-test-msg-explicit-beginning', 4], ['text', 'parse', 'escaped'], 'Basket has 4 eggs', 'explicit plural given at beginning get resolved for plural' );
 229                 assertMultipleFormats( ['plural-test-msg-explicit-beginning', 6], ['text', 'parse', 'escaped'], 'Basket has half a dozen eggs', 'explicit plural given at beginning get resolved for 6' );
 230                 assertMultipleFormats( ['plural-test-msg-explicit-beginning', 0], ['text', 'parse', 'escaped'], 'Basket has no eggs', 'explicit plural given at beginning get resolved for 0' );
 231
 232                 assertMultipleFormats( ['mediawiki-test-pagetriage-del-talk-page-notify-summary'], ['plain', 'text'], mw.messages.get( 'mediawiki-test-pagetriage-del-talk-page-notify-summary' ), 'Double square brackets with no parameters unchanged' );
 233
 234                 assertMultipleFormats( ['mediawiki-test-pagetriage-del-talk-page-notify-summary', specialCharactersPageName], ['plain', 'text'], 'Notifying author of deletion nomination for [[' + specialCharactersPageName + ']]', 'Double square brackets with one parameter' );
 235
 236                 assert.equal( mw.message( 'mediawiki-test-pagetriage-del-talk-page-notify-summary', specialCharactersPageName ).escaped(), 'Notifying author of deletion nomination for [[' + mw.html.escape( specialCharactersPageName ) + ']]', 'Double square brackets with one parameter, when escaped' );
 237
 238                 assert.ok( mw.messages.set( 'mediawiki-test-categorytree-collapse-bullet', '[<b>−</b>]' ), 'mw.messages.set: Register' );
 239                 assert.equal( mw.message( 'mediawiki-test-categorytree-collapse-bullet' ).plain(), mw.messages.get( 'mediawiki-test-categorytree-collapse-bullet' ), 'Single square brackets unchanged in plain mode' );
 240
 241                 assert.ok( mw.messages.set( 'mediawiki-test-wikieditor-toolbar-help-content-signature-result', '<a href=\'#\' title=\'{{#special:mypage}}\'>Username</a> (<a href=\'#\' title=\'{{#special:mytalk}}\'>talk</a>)' ), 'mw.messages.set: Register' );
 242                 assert.equal( mw.message( 'mediawiki-test-wikieditor-toolbar-help-content-signature-result' ).plain(), mw.messages.get( 'mediawiki-test-wikieditor-toolbar-help-content-signature-result' ), 'HTML message with curly braces is not changed in plain mode' );
 243
 244                 assertMultipleFormats( ['gender-plural-msg', 'male', 1], ['text', 'parse', 'escaped'], 'he is awesome', 'Gender and plural are resolved' );
 245                 assert.equal( mw.message( 'gender-plural-msg', 'male', 1 ).plain(), '{{GENDER:male|he|she|they}} {{PLURAL:1|is|are}} awesome', 'Parameters are substituted, but gender and plural are not resolved in plain mode' );
 246
 247                 assert.equal( mw.message( 'grammar-msg' ).plain(), mw.messages.get( 'grammar-msg' ), 'Grammar is not resolved in plain mode' );
 248                 assertMultipleFormats( ['grammar-msg'], ['text', 'parse'], 'Przeszukaj ' + mw.config.get( 'wgSiteName' ), 'Grammar is resolved' );
 249                 assert.equal( mw.message( 'grammar-msg' ).escaped(), 'Przeszukaj ' + mw.html.escape( mw.config.get( 'wgSiteName' ) ), 'Grammar is resolved in escaped mode' );
 250
 251                 assertMultipleFormats( ['formatnum-msg', '987654321.654321'], ['text', 'parse', 'escaped'], '987,654,321.654', 'formatnum is resolved' );
 252                 assert.equal( mw.message( 'formatnum-msg' ).plain(), mw.messages.get( 'formatnum-msg' ), 'formatnum is not resolved in plain mode' );
 253
 254                 assertMultipleFormats( ['int-msg'], ['text', 'parse', 'escaped'], 'Some Other Message', 'int is resolved' );
 255                 assert.equal( mw.message( 'int-msg' ).plain(), mw.messages.get( 'int-msg' ), 'int is not resolved in plain mode' );
 256
 257                 assert.ok( mw.messages.set( 'mediawiki-italics-msg', '<i>Very</i> important' ), 'mw.messages.set: Register' );
 258                 assertMultipleFormats( ['mediawiki-italics-msg'], ['plain', 'text', 'parse'], mw.messages.get( 'mediawiki-italics-msg' ), 'Simple italics unchanged' );
 259                 assert.htmlEqual(
 260                         mw.message( 'mediawiki-italics-msg' ).escaped(),
 261                         '&lt;i&gt;Very&lt;/i&gt; important',
 262                         'Italics are escaped in escaped mode'
 263                 );
 264
 265                 assert.ok( mw.messages.set( 'mediawiki-italics-with-link', 'An <i>italicized [[link|wiki-link]]</i>' ), 'mw.messages.set: Register' );
 266                 assertMultipleFormats( ['mediawiki-italics-with-link'], ['plain', 'text'], mw.messages.get( 'mediawiki-italics-with-link' ), 'Italics with link unchanged' );
 267                 assert.htmlEqual(
 268                         mw.message( 'mediawiki-italics-with-link' ).escaped(),
 269                         'An &lt;i&gt;italicized [[link|wiki-link]]&lt;/i&gt;',
 270                         'Italics and link unchanged except for escaping in escaped mode'
 271                 );
 272                 assert.htmlEqual(
 273                         mw.message( 'mediawiki-italics-with-link' ).parse(),
 274                         'An <i>italicized <a title="link" href="' + mw.util.getUrl( 'link' ) + '">wiki-link</i>',
 275                         'Italics with link inside in parse mode'
 276                 );
 277
 278                 assert.ok( mw.messages.set( 'mediawiki-script-msg', '<script  >alert( "Who put this script here?" );</script>' ), 'mw.messages.set: Register' );
 279                 assertMultipleFormats( ['mediawiki-script-msg'], ['plain', 'text'], mw.messages.get( 'mediawiki-script-msg' ), 'Script unchanged' );
 280                 assert.htmlEqual(
 281                         mw.message( 'mediawiki-script-msg' ).escaped(),
 282                         '&lt;script  &gt;alert( "Who put this script here?" );&lt;/script&gt;',
 283                         'Script escaped when using escaped format'
 284                 );
 285                 assert.htmlEqual(
 286                         mw.message( 'mediawiki-script-msg' ).parse(),
 287                         '&lt;script  &gt;alert( "Who put this script here?" );&lt;/script&gt;',
 288                         'Script escaped when using parse format'
 289                 );
 290
 291         } );
 292
 293         QUnit.test( 'mw.msg', 14, function ( assert ) {
 294                 assert.ok( mw.messages.set( 'hello', 'Hello <b>awesome</b> world' ), 'mw.messages.set: Register' );
 295                 assert.equal( mw.msg( 'hello' ), 'Hello <b>awesome</b> world', 'Gets message with default options (existing message)' );
 296                 assert.equal( mw.msg( 'goodbye' ), '<goodbye>', 'Gets message with default options (nonexistent message)' );
 297
 298                 assert.ok( mw.messages.set( 'plural-item', 'Found $1 {{PLURAL:$1|item|items}}' ), 'mw.messages.set: Register' );
 299                 assert.equal( mw.msg( 'plural-item', 5 ), 'Found 5 items', 'Apply plural for count 5' );
 300                 assert.equal( mw.msg( 'plural-item', 0 ), 'Found 0 items', 'Apply plural for count 0' );
 301                 assert.equal( mw.msg( 'plural-item', 1 ), 'Found 1 item', 'Apply plural for count 1' );
 302
 303                 assert.equal( mw.msg( 'mediawiki-test-pagetriage-del-talk-page-notify-summary', specialCharactersPageName ), 'Notifying author of deletion nomination for [[' + specialCharactersPageName + ']]', 'Double square brackets in mw.msg one parameter' );
 304
 305                 assert.equal( mw.msg( 'gender-plural-msg', 'male', 1 ), 'he is awesome', 'Gender test for male, plural count 1' );
 306                 assert.equal( mw.msg( 'gender-plural-msg', 'female', '1' ), 'she is awesome', 'Gender test for female, plural count 1' );
 307                 assert.equal( mw.msg( 'gender-plural-msg', 'unknown', 10 ), 'they are awesome', 'Gender test for neutral, plural count 10' );
 308
 309                 assert.equal( mw.msg( 'grammar-msg' ), 'Przeszukaj ' + mw.config.get( 'wgSiteName' ), 'Grammar is resolved' );
 310
 311                 assert.equal( mw.msg( 'formatnum-msg', '987654321.654321' ), '987,654,321.654', 'formatnum is resolved' );
 312
 313                 assert.equal( mw.msg( 'int-msg' ), 'Some Other Message', 'int is resolved' );
 314         } );
 315
 316         /**
 317          * The sync style load test (for @import). This is, in a way, also an open bug for
 318          * ResourceLoader ("execute js after styles are loaded"), but browsers don't offer a
 319          * way to get a callback from when a stylesheet is loaded (that is, including any
 320          * @import rules inside). To work around this, we'll have a little time loop to check
 321          * if the styles apply.
 322          * Note: This test originally used new Image() and onerror to get a callback
 323          * when the url is loaded, but that is fragile since it doesn't monitor the
 324          * same request as the css @import, and Safari 4 has issues with
 325          * onerror/onload not being fired at all in weird cases like this.
 326          */
 327         function assertStyleAsync( assert, $element, prop, val, fn ) {
 328                 var styleTestStart,
 329                         el = $element.get( 0 ),
 330                         styleTestTimeout = ( QUnit.config.testTimeout || 5000 ) - 200;
 331
 332                 function isCssImportApplied() {
 333                         // Trigger reflow, repaint, redraw, whatever (cross-browser)
 334                         var x = $element.css( 'height' );
 335                         x = el.innerHTML;
 336                         el.className = el.className;
 337                         x = document.documentElement.clientHeight;
 338
 339                         return $element.css( prop ) === val;
 340                 }
 341
 342                 function styleTestLoop() {
 343                         var styleTestSince = new Date().getTime() - styleTestStart;
 344                         // If it is passing or if we timed out, run the real test and stop the loop
 345                         if ( isCssImportApplied() || styleTestSince > styleTestTimeout ) {
 346                                 assert.equal( $element.css( prop ), val,
 347                                         'style "' + prop + ': ' + val + '" from url is applied (after ' + styleTestSince + 'ms)'
 348                                 );
 349
 350                                 if ( fn ) {
 351                                         fn();
 352                                 }
 353
 354                                 return;
 355                         }
 356                         // Otherwise, keep polling
 357                         setTimeout( styleTestLoop, 150 );
 358                 }
 359
 360                 // Start the loop
 361                 styleTestStart = new Date().getTime();
 362                 styleTestLoop();
 363         }
 364
 365         function urlStyleTest( selector, prop, val ) {
 366                 return QUnit.fixurl(
 367                         mw.config.get( 'wgScriptPath' ) +
 368                                 '/tests/qunit/data/styleTest.css.php?' +
 369                                 $.param( {
 370                                         selector: selector,
 371                                         prop: prop,
 372                                         val: val
 373                                 } )
 374                 );
 375         }
 376
 377         QUnit.asyncTest( 'mw.loader', 2, function ( assert ) {
 378                 var isAwesomeDone;
 379
 380                 mw.loader.testCallback = function () {
 381                         QUnit.start();
 382                         assert.strictEqual( isAwesomeDone, undefined, 'Implementing module is.awesome: isAwesomeDone should still be undefined' );
 383                         isAwesomeDone = true;
 384                 };
 385
 386                 mw.loader.implement( 'test.callback', [QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/callMwLoaderTestCallback.js' )], {}, {} );
 387
 388                 mw.loader.using( 'test.callback', function () {
 389
 390                         // /sample/awesome.js declares the "mw.loader.testCallback" function
 391                         // which contains a call to start() and ok()
 392                         assert.strictEqual( isAwesomeDone, true, 'test.callback module should\'ve caused isAwesomeDone to be true' );
 393                         delete mw.loader.testCallback;
 394
 395                 }, function () {
 396                         QUnit.start();
 397                         assert.ok( false, 'Error callback fired while loader.using "test.callback" module' );
 398                 } );
 399         } );
 400
 401         QUnit.asyncTest( 'mw.loader.using( .. ).promise', 2, function ( assert ) {
 402                 var isAwesomeDone;
 403
 404                 mw.loader.testCallback = function () {
 405                         QUnit.start();
 406                         assert.strictEqual( isAwesomeDone, undefined, 'Implementing module is.awesome: isAwesomeDone should still be undefined' );
 407                         isAwesomeDone = true;
 408                 };
 409
 410                 mw.loader.implement( 'test.promise', [QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/callMwLoaderTestCallback.js' )], {}, {} );
 411
 412                 mw.loader.using( 'test.promise' )
 413                 .done( function () {
 414
 415                         // /sample/awesome.js declares the "mw.loader.testCallback" function
 416                         // which contains a call to start() and ok()
 417                         assert.strictEqual( isAwesomeDone, true, 'test.promise module should\'ve caused isAwesomeDone to be true' );
 418                         delete mw.loader.testCallback;
 419
 420                 } )
 421                 .fail( function () {
 422                         QUnit.start();
 423                         assert.ok( false, 'Error callback fired while loader.using "test.promise" module' );
 424                 } );
 425         } );
 426
 427         QUnit.asyncTest( 'mw.loader.implement( styles={ "css": [text, ..] } )', 2, function ( assert ) {
 428                 var $element = $( '<div class="mw-test-implement-a"></div>' ).appendTo( '#qunit-fixture' );
 429
 430                 assert.notEqual(
 431                         $element.css( 'float' ),
 432                         'right',
 433                         'style is clear'
 434                 );
 435
 436                 mw.loader.implement(
 437                         'test.implement.a',
 438                         function () {
 439                                 assert.equal(
 440                                         $element.css( 'float' ),
 441                                         'right',
 442                                         'style is applied'
 443                                 );
 444                                 QUnit.start();
 445                         },
 446                         {
 447                                 'all': '.mw-test-implement-a { float: right; }'
 448                         },
 449                         {}
 450                 );
 451
 452                 mw.loader.load( [
 453                         'test.implement.a'
 454                 ] );
 455         } );
 456
 457         QUnit.asyncTest( 'mw.loader.implement( styles={ "url": { <media>: [url, ..] } } )', 7, function ( assert ) {
 458                 var $element1 = $( '<div class="mw-test-implement-b1"></div>' ).appendTo( '#qunit-fixture' ),
 459                         $element2 = $( '<div class="mw-test-implement-b2"></div>' ).appendTo( '#qunit-fixture' ),
 460                         $element3 = $( '<div class="mw-test-implement-b3"></div>' ).appendTo( '#qunit-fixture' );
 461
 462                 assert.notEqual(
 463                         $element1.css( 'text-align' ),
 464                         'center',
 465                         'style is clear'
 466                 );
 467                 assert.notEqual(
 468                         $element2.css( 'float' ),
 469                         'left',
 470                         'style is clear'
 471                 );
 472                 assert.notEqual(
 473                         $element3.css( 'text-align' ),
 474                         'right',
 475                         'style is clear'
 476                 );
 477
 478                 mw.loader.implement(
 479                         'test.implement.b',
 480                         function () {
 481                                 // Note: QUnit.start() must only be called when the entire test is
 482                                 // complete. So, make sure that we don't start until *both*
 483                                 // assertStyleAsync calls have completed.
 484                                 var pending = 2;
 485                                 assertStyleAsync( assert, $element2, 'float', 'left', function () {
 486                                         assert.notEqual( $element1.css( 'text-align' ), 'center', 'print style is not applied' );
 487
 488                                         pending--;
 489                                         if ( pending === 0 ) {
 490                                                 QUnit.start();
 491                                         }
 492                                 } );
 493                                 assertStyleAsync( assert, $element3, 'float', 'right', function () {
 494                                         assert.notEqual( $element1.css( 'text-align' ), 'center', 'print style is not applied' );
 495
 496                                         pending--;
 497                                         if ( pending === 0 ) {
 498                                                 QUnit.start();
 499                                         }
 500                                 } );
 501                         },
 502                         {
 503                                 'url': {
 504                                         'print': [urlStyleTest( '.mw-test-implement-b1', 'text-align', 'center' )],
 505                                         'screen': [
 506                                                 // bug 40834: Make sure it actually works with more than 1 stylesheet reference
 507                                                 urlStyleTest( '.mw-test-implement-b2', 'float', 'left' ),
 508                                                 urlStyleTest( '.mw-test-implement-b3', 'float', 'right' )
 509                                         ]
 510                                 }
 511                         },
 512                         {}
 513                 );
 514
 515                 mw.loader.load( [
 516                         'test.implement.b'
 517                 ] );
 518         } );
 519
 520         // Backwards compatibility
 521         QUnit.asyncTest( 'mw.loader.implement( styles={ <media>: text } ) (back-compat)', 2, function ( assert ) {
 522                 var $element = $( '<div class="mw-test-implement-c"></div>' ).appendTo( '#qunit-fixture' );
 523
 524                 assert.notEqual(
 525                         $element.css( 'float' ),
 526                         'right',
 527                         'style is clear'
 528                 );
 529
 530                 mw.loader.implement(
 531                         'test.implement.c',
 532                         function () {
 533                                 assert.equal(
 534                                         $element.css( 'float' ),
 535                                         'right',
 536                                         'style is applied'
 537                                 );
 538                                 QUnit.start();
 539                         },
 540                         {
 541                                 'all': '.mw-test-implement-c { float: right; }'
 542                         },
 543                         {}
 544                 );
 545
 546                 mw.loader.load( [
 547                         'test.implement.c'
 548                 ] );
 549         } );
 550
 551         // Backwards compatibility
 552         QUnit.asyncTest( 'mw.loader.implement( styles={ <media>: [url, ..] } ) (back-compat)', 4, function ( assert ) {
 553                 var $element = $( '<div class="mw-test-implement-d"></div>' ).appendTo( '#qunit-fixture' ),
 554                         $element2 = $( '<div class="mw-test-implement-d2"></div>' ).appendTo( '#qunit-fixture' );
 555
 556                 assert.notEqual(
 557                         $element.css( 'float' ),
 558                         'right',
 559                         'style is clear'
 560                 );
 561                 assert.notEqual(
 562                         $element2.css( 'text-align' ),
 563                         'center',
 564                         'style is clear'
 565                 );
 566
 567                 mw.loader.implement(
 568                         'test.implement.d',
 569                         function () {
 570                                 assertStyleAsync( assert, $element, 'float', 'right', function () {
 571
 572                                         assert.notEqual( $element2.css( 'text-align' ), 'center', 'print style is not applied (bug 40500)' );
 573
 574                                         QUnit.start();
 575                                 } );
 576                         },
 577                         {
 578                                 'all': [urlStyleTest( '.mw-test-implement-d', 'float', 'right' )],
 579                                 'print': [urlStyleTest( '.mw-test-implement-d2', 'text-align', 'center' )]
 580                         },
 581                         {}
 582                 );
 583
 584                 mw.loader.load( [
 585                         'test.implement.d'
 586                 ] );
 587         } );
 588
 589         // @import (bug 31676)
 590         QUnit.asyncTest( 'mw.loader.implement( styles has @import)', 5, function ( assert ) {
 591                 var isJsExecuted, $element;
 592
 593                 mw.loader.implement(
 594                         'test.implement.import',
 595                         function () {
 596                                 assert.strictEqual( isJsExecuted, undefined, 'javascript not executed multiple times' );
 597                                 isJsExecuted = true;
 598
 599                                 assert.equal( mw.loader.getState( 'test.implement.import' ), 'ready', 'module state is "ready" while implement() is executing javascript' );
 600
 601                                 $element = $( '<div class="mw-test-implement-import">Foo bar</div>' ).appendTo( '#qunit-fixture' );
 602
 603                                 assert.equal( mw.msg( 'test-foobar' ), 'Hello Foobar, $1!', 'Messages are loaded before javascript execution' );
 604
 605                                 assertStyleAsync( assert, $element, 'float', 'right', function () {
 606                                         assert.equal( $element.css( 'text-align' ), 'center',
 607                                                 'CSS styles after the @import rule are working'
 608                                         );
 609
 610                                         QUnit.start();
 611                                 } );
 612                         },
 613                         {
 614                                 'css': [
 615                                         '@import url(\''
 616                                                 + urlStyleTest( '.mw-test-implement-import', 'float', 'right' )
 617                                                 + '\');\n'
 618                                                 + '.mw-test-implement-import { text-align: center; }'
 619                                 ]
 620                         },
 621                         {
 622                                 'test-foobar': 'Hello Foobar, $1!'
 623                         }
 624                 );
 625
 626                 mw.loader.load( 'test.implement' );
 627
 628         } );
 629
 630         QUnit.asyncTest( 'mw.loader.implement( only messages )', 2, function ( assert ) {
 631                 assert.assertFalse( mw.messages.exists( 'bug_29107' ), 'Verify that the test message doesn\'t exist yet' );
 632
 633                 mw.loader.implement( 'test.implement.msgs', [], {}, { 'bug_29107': 'loaded' } );
 634                 mw.loader.using( 'test.implement.msgs', function () {
 635                         QUnit.start();
 636                         assert.ok( mw.messages.exists( 'bug_29107' ), 'Bug 29107: messages-only module should implement ok' );
 637                 }, function () {
 638                         QUnit.start();
 639                         assert.ok( false, 'Error callback fired while implementing "test.implement.msgs" module' );
 640                 } );
 641         } );
 642
 643         QUnit.test( 'mw.loader erroneous indirect dependency', 3, function ( assert ) {
 644                 mw.loader.register( [
 645                         ['test.module1', '0'],
 646                         ['test.module2', '0', ['test.module1']],
 647                         ['test.module3', '0', ['test.module2']]
 648                 ] );
 649                 mw.loader.implement( 'test.module1', function () {
 650                         throw new Error( 'expected' );
 651                 }, {}, {} );
 652                 assert.strictEqual( mw.loader.getState( 'test.module1' ), 'error', 'Expected "error" state for test.module1' );
 653                 assert.strictEqual( mw.loader.getState( 'test.module2' ), 'error', 'Expected "error" state for test.module2' );
 654                 assert.strictEqual( mw.loader.getState( 'test.module3' ), 'error', 'Expected "error" state for test.module3' );
 655         } );
 656
 657         QUnit.test( 'mw.loader out-of-order implementation', 9, function ( assert ) {
 658                 mw.loader.register( [
 659                         ['test.module4', '0'],
 660                         ['test.module5', '0', ['test.module4']],
 661                         ['test.module6', '0', ['test.module5']]
 662                 ] );
 663                 mw.loader.implement( 'test.module4', function () {
 664                 }, {}, {} );
 665                 assert.strictEqual( mw.loader.getState( 'test.module4' ), 'ready', 'Expected "ready" state for test.module4' );
 666                 assert.strictEqual( mw.loader.getState( 'test.module5' ), 'registered', 'Expected "registered" state for test.module5' );
 667                 assert.strictEqual( mw.loader.getState( 'test.module6' ), 'registered', 'Expected "registered" state for test.module6' );
 668                 mw.loader.implement( 'test.module6', function () {
 669                 }, {}, {} );
 670                 assert.strictEqual( mw.loader.getState( 'test.module4' ), 'ready', 'Expected "ready" state for test.module4' );
 671                 assert.strictEqual( mw.loader.getState( 'test.module5' ), 'registered', 'Expected "registered" state for test.module5' );
 672                 assert.strictEqual( mw.loader.getState( 'test.module6' ), 'loaded', 'Expected "loaded" state for test.module6' );
 673                 mw.loader.implement( 'test.module5', function () {
 674                 }, {}, {} );
 675                 assert.strictEqual( mw.loader.getState( 'test.module4' ), 'ready', 'Expected "ready" state for test.module4' );
 676                 assert.strictEqual( mw.loader.getState( 'test.module5' ), 'ready', 'Expected "ready" state for test.module5' );
 677                 assert.strictEqual( mw.loader.getState( 'test.module6' ), 'ready', 'Expected "ready" state for test.module6' );
 678         } );
 679
 680         QUnit.test( 'mw.loader missing dependency', 13, function ( assert ) {
 681                 mw.loader.register( [
 682                         ['test.module7', '0'],
 683                         ['test.module8', '0', ['test.module7']],
 684                         ['test.module9', '0', ['test.module8']]
 685                 ] );
 686                 mw.loader.implement( 'test.module8', function () {
 687                 }, {}, {} );
 688                 assert.strictEqual( mw.loader.getState( 'test.module7' ), 'registered', 'Expected "registered" state for test.module7' );
 689                 assert.strictEqual( mw.loader.getState( 'test.module8' ), 'loaded', 'Expected "loaded" state for test.module8' );
 690                 assert.strictEqual( mw.loader.getState( 'test.module9' ), 'registered', 'Expected "registered" state for test.module9' );
 691                 mw.loader.state( 'test.module7', 'missing' );
 692                 assert.strictEqual( mw.loader.getState( 'test.module7' ), 'missing', 'Expected "missing" state for test.module7' );
 693                 assert.strictEqual( mw.loader.getState( 'test.module8' ), 'error', 'Expected "error" state for test.module8' );
 694                 assert.strictEqual( mw.loader.getState( 'test.module9' ), 'error', 'Expected "error" state for test.module9' );
 695                 mw.loader.implement( 'test.module9', function () {
 696                 }, {}, {} );
 697                 assert.strictEqual( mw.loader.getState( 'test.module7' ), 'missing', 'Expected "missing" state for test.module7' );
 698                 assert.strictEqual( mw.loader.getState( 'test.module8' ), 'error', 'Expected "error" state for test.module8' );
 699                 assert.strictEqual( mw.loader.getState( 'test.module9' ), 'error', 'Expected "error" state for test.module9' );
 700                 mw.loader.using(
 701                         ['test.module7'],
 702                         function () {
 703                                 assert.ok( false, 'Success fired despite missing dependency' );
 704                                 assert.ok( true, 'QUnit expected() count dummy' );
 705                         },
 706                         function ( e, dependencies ) {
 707                                 assert.strictEqual( $.isArray( dependencies ), true, 'Expected array of dependencies' );
 708                                 assert.deepEqual( dependencies, ['test.module7'], 'Error callback called with module test.module7' );
 709                         }
 710                 );
 711                 mw.loader.using(
 712                         ['test.module9'],
 713                         function () {
 714                                 assert.ok( false, 'Success fired despite missing dependency' );
 715                                 assert.ok( true, 'QUnit expected() count dummy' );
 716                         },
 717                         function ( e, dependencies ) {
 718                                 assert.strictEqual( $.isArray( dependencies ), true, 'Expected array of dependencies' );
 719                                 dependencies.sort();
 720                                 assert.deepEqual(
 721                                         dependencies,
 722                                         ['test.module7', 'test.module8', 'test.module9'],
 723                                         'Error callback called with all three modules as dependencies'
 724                                 );
 725                         }
 726                 );
 727         } );
 728
 729         QUnit.asyncTest( 'mw.loader dependency handling', 5, function ( assert ) {
 730                 mw.loader.register( [
 731                         // [module, version, dependencies, group, source]
 732                         ['testMissing', '1', [], null, 'testloader'],
 733                         ['testUsesMissing', '1', ['testMissing'], null, 'testloader'],
 734                         ['testUsesNestedMissing', '1', ['testUsesMissing'], null, 'testloader']
 735                 ] );
 736
 737                 function verifyModuleStates() {
 738                         assert.equal( mw.loader.getState( 'testMissing' ), 'missing', 'Module not known to server must have state "missing"' );
 739                         assert.equal( mw.loader.getState( 'testUsesMissing' ), 'error', 'Module with missing dependency must have state "error"' );
 740                         assert.equal( mw.loader.getState( 'testUsesNestedMissing' ), 'error', 'Module with indirect missing dependency must have state "error"' );
 741                 }
 742
 743                 mw.loader.using( ['testUsesNestedMissing'],
 744                         function () {
 745                                 assert.ok( false, 'Error handler should be invoked.' );
 746                                 assert.ok( true ); // Dummy to reach QUnit expect()
 747
 748                                 verifyModuleStates();
 749
 750                                 QUnit.start();
 751                         },
 752                         function ( e, badmodules ) {
 753                                 assert.ok( true, 'Error handler should be invoked.' );
 754                                 // As soon as server spits out state('testMissing', 'missing');
 755                                 // it will bubble up and trigger the error callback.
 756                                 // Therefor the badmodules array is not testUsesMissing or testUsesNestedMissing.
 757                                 assert.deepEqual( badmodules, ['testMissing'], 'Bad modules as expected.' );
 758
 759                                 verifyModuleStates();
 760
 761                                 QUnit.start();
 762                         }
 763                 );
 764         } );
 765
 766         QUnit.asyncTest( 'mw.loader skin-function handling', 5, function ( assert ) {
 767                 mw.loader.register( [
 768                         // [module, version, dependencies, group, source, skip]
 769                         ['testSkipped', '1', [], null, 'testloader', 'return true;'],
 770                         ['testNotSkipped', '1', [], null, 'testloader', 'return false;'],
 771                         ['testUsesSkippable', '1', ['testSkipped', 'testNotSkipped'], null, 'testloader']
 772                 ] );
 773
 774                 function verifyModuleStates() {
 775                         assert.equal( mw.loader.getState( 'testSkipped' ), 'ready', 'Module is ready when skipped' );
 776                         assert.equal( mw.loader.getState( 'testNotSkipped' ), 'ready', 'Module is ready when not skipped but loaded' );
 777                         assert.equal( mw.loader.getState( 'testUsesSkippable' ), 'ready', 'Module is ready when skippable dependencies are ready' );
 778                 }
 779
 780                 mw.loader.using( ['testUsesSkippable'],
 781                         function () {
 782                                 assert.ok( true, 'Success handler should be invoked.' );
 783                                 assert.ok( true ); // Dummy to match error handler and reach QUnit expect()
 784
 785                                 verifyModuleStates();
 786
 787                                 QUnit.start();
 788                         },
 789                         function ( e, badmodules ) {
 790                                 assert.ok( false, 'Error handler should not be invoked.' );
 791                                 assert.deepEqual( badmodules, [], 'Bad modules as expected.' );
 792
 793                                 verifyModuleStates();
 794
 795                                 QUnit.start();
 796                         }
 797                 );
 798         } );
 799
 800         QUnit.asyncTest( 'mw.loader( "//protocol-relative" ) (bug 30825)', 2, function ( assert ) {
 801                 // This bug was actually already fixed in 1.18 and later when discovered in 1.17.
 802                 // Test is for regressions!
 803
 804                 // Forge an URL to the test callback script
 805                 var target = QUnit.fixurl(
 806                         mw.config.get( 'wgServer' ) + mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/qunitOkCall.js'
 807                 );
 808
 809                 // Confirm that mw.loader.load() works with protocol-relative URLs
 810                 target = target.replace( /https?:/, '' );
 811
 812                 assert.equal( target.substr( 0, 2 ), '//',
 813                         'URL must be relative to test relative URLs!'
 814                 );
 815
 816                 // Async!
 817                 // The target calls QUnit.start
 818                 mw.loader.load( target );
 819         } );
 820
 821         QUnit.test( 'mw.html', 13, function ( assert ) {
 822                 assert.throws( function () {
 823                         mw.html.escape();
 824                 }, TypeError, 'html.escape throws a TypeError if argument given is not a string' );
 825
 826                 assert.equal( mw.html.escape( '<mw awesome="awesome" value=\'test\' />' ),
 827                         '&lt;mw awesome=&quot;awesome&quot; value=&#039;test&#039; /&gt;', 'escape() escapes special characters to html entities' );
 828
 829                 assert.equal( mw.html.element(),
 830                         '<undefined/>', 'element() always returns a valid html string (even without arguments)' );
 831
 832                 assert.equal( mw.html.element( 'div' ), '<div/>', 'element() Plain DIV (simple)' );
 833
 834                 assert.equal( mw.html.element( 'div', {}, '' ), '<div></div>', 'element() Basic DIV (simple)' );
 835
 836                 assert.equal(
 837                         mw.html.element(
 838                                 'div', {
 839                                         id: 'foobar'
 840                                 }
 841                         ),
 842                         '<div id="foobar"/>',
 843                         'html.element DIV (attribs)' );
 844
 845                 assert.equal( mw.html.element( 'p', null, 12 ), '<p>12</p>', 'Numbers are valid content and should be casted to a string' );
 846
 847                 assert.equal( mw.html.element( 'p', { title: 12 }, '' ), '<p title="12"></p>', 'Numbers are valid attribute values' );
 848
 849                 // Example from https://www.mediawiki.org/wiki/ResourceLoader/Default_modules#mediaWiki.html
 850                 assert.equal(
 851                         mw.html.element(
 852                                 'div',
 853                                 {},
 854                                 new mw.html.Raw(
 855                                         mw.html.element( 'img', { src: '<' } )
 856                                 )
 857                         ),
 858                         '<div><img src="&lt;"/></div>',
 859                         'Raw inclusion of another element'
 860                 );
 861
 862                 assert.equal(
 863                         mw.html.element(
 864                                 'option', {
 865                                         selected: true
 866                                 }, 'Foo'
 867                         ),
 868                         '<option selected="selected">Foo</option>',
 869                         'Attributes may have boolean values. True copies the attribute name to the value.'
 870                 );
 871
 872                 assert.equal(
 873                         mw.html.element(
 874                                 'option', {
 875                                         value: 'foo',
 876                                         selected: false
 877                                 }, 'Foo'
 878                         ),
 879                         '<option value="foo">Foo</option>',
 880                         'Attributes may have boolean values. False keeps the attribute from output.'
 881                 );
 882
 883                 assert.equal( mw.html.element( 'div',
 884                         null, 'a' ),
 885                         '<div>a</div>',
 886                         'html.element DIV (content)' );
 887
 888                 assert.equal( mw.html.element( 'a',
 889                         { href: 'http://mediawiki.org/w/index.php?title=RL&action=history' }, 'a' ),
 890                         '<a href="http://mediawiki.org/w/index.php?title=RL&amp;action=history">a</a>',
 891                         'html.element DIV (attribs + content)' );
 892
 893         } );
 894
 895         QUnit.test( 'mw.hook', 13, function ( assert ) {
 896                 var hook, add, fire, chars, callback;
 897
 898                 mw.hook( 'test.hook.unfired' ).add( function () {
 899                         assert.ok( false, 'Unfired hook' );
 900                 } );
 901
 902                 mw.hook( 'test.hook.basic' ).add( function () {
 903                         assert.ok( true, 'Basic callback' );
 904                 } );
 905                 mw.hook( 'test.hook.basic' ).fire();
 906
 907                 mw.hook( 'hasOwnProperty' ).add( function () {
 908                         assert.ok( true, 'hook with name of predefined method' );
 909                 } );
 910                 mw.hook( 'hasOwnProperty' ).fire();
 911
 912                 mw.hook( 'test.hook.data' ).add( function ( data1, data2 ) {
 913                         assert.equal( data1, 'example', 'Fire with data (string param)' );
 914                         assert.deepEqual( data2, ['two'], 'Fire with data (array param)' );
 915                 } );
 916                 mw.hook( 'test.hook.data' ).fire( 'example', ['two'] );
 917
 918                 hook = mw.hook( 'test.hook.chainable' );
 919                 assert.strictEqual( hook.add(), hook, 'hook.add is chainable' );
 920                 assert.strictEqual( hook.remove(), hook, 'hook.remove is chainable' );
 921                 assert.strictEqual( hook.fire(), hook, 'hook.fire is chainable' );
 922
 923                 hook = mw.hook( 'test.hook.detach' );
 924                 add = hook.add;
 925                 fire = hook.fire;
 926                 add( function ( x, y ) {
 927                         assert.deepEqual( [x, y], ['x', 'y'], 'Detached (contextless) with data' );
 928                 } );
 929                 fire( 'x', 'y' );
 930
 931                 mw.hook( 'test.hook.fireBefore' ).fire().add( function () {
 932                         assert.ok( true, 'Invoke handler right away if it was fired before' );
 933                 } );
 934
 935                 mw.hook( 'test.hook.fireTwiceBefore' ).fire().fire().add( function () {
 936                         assert.ok( true, 'Invoke handler right away if it was fired before (only last one)' );
 937                 } );
 938
 939                 chars = [];
 940
 941                 mw.hook( 'test.hook.many' )
 942                         .add( function ( chr ) {
 943                                 chars.push( chr );
 944                         } )
 945                         .fire( 'x' ).fire( 'y' ).fire( 'z' )
 946                         .add( function ( chr ) {
 947                                 assert.equal( chr, 'z', 'Adding callback later invokes right away with last data' );
 948                         } );
 949
 950                 assert.deepEqual( chars, ['x', 'y', 'z'], 'Multiple callbacks with multiple fires' );
 951
 952                 chars = [];
 953                 callback = function ( chr ) {
 954                         chars.push( chr );
 955                 };
 956
 957                 mw.hook( 'test.hook.variadic' )
 958                         .add(
 959                                 callback,
 960                                 callback,
 961                                 function ( chr ) {
 962                                         chars.push( chr );
 963                                 },
 964                                 callback
 965                         )
 966                         .fire( 'x' )
 967                         .remove(
 968                                 function () {
 969                                         'not-added';
 970                                 },
 971                                 callback
 972                         )
 973                         .fire( 'y' )
 974                         .remove( callback )
 975                         .fire( 'z' );
 976
 977                 assert.deepEqual(
 978                         chars,
 979                         ['x', 'x', 'x', 'x', 'y', 'z'],
 980                         '"add" and "remove" support variadic arguments. ' +
 981                                 '"add" does not filter unique. ' +
 982                                 '"remove" removes all equal by reference. ' +
 983                                 '"remove" is silent if the function is not found'
 984                 );
 985         } );
 986
 987 }( mediaWiki, jQuery ) );