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

   1 /*jshint -W024 */
   2 ( function ( mw, $ ) {
   3         var specialCharactersPageName,
   4                 // Can't mock SITENAME since jqueryMsg caches it at load
   5                 siteName = mw.config.get( 'wgSiteName' );
   6
   7         // Since QUnitTestResources.php loads both mediawiki and mediawiki.jqueryMsg as
   8         // dependencies, this only tests the monkey-patched behavior with the two of them combined.
   9
  10         // See mediawiki.jqueryMsg.test.js for unit tests for jqueryMsg-specific functionality.
  11
  12         QUnit.module( 'mediawiki', QUnit.newMwEnvironment( {
  13                 setup: function () {
  14                         specialCharactersPageName = '"Who" wants to be a millionaire & live on \'Exotic Island\'?';
  15                 },
  16                 config: {
  17                         wgArticlePath: '/wiki/$1',
  18
  19                         // For formatnum tests
  20                         wgUserLanguage: 'en'
  21                 },
  22                 // Messages used in multiple tests
  23                 messages: {
  24                         'other-message': 'Other Message',
  25                         'mediawiki-test-pagetriage-del-talk-page-notify-summary': 'Notifying author of deletion nomination for [[$1]]',
  26                         'gender-plural-msg': '{{GENDER:$1|he|she|they}} {{PLURAL:$2|is|are}} awesome',
  27                         'grammar-msg': 'Przeszukaj {{GRAMMAR:grammar_case_foo|{{SITENAME}}}}',
  28                         'formatnum-msg': '{{formatnum:$1}}',
  29                         'int-msg': 'Some {{int:other-message}}',
  30                         'mediawiki-test-version-entrypoints-index-php': '[https://www.mediawiki.org/wiki/Manual:index.php index.php]',
  31                         'external-link-replace': 'Foo [$1 bar]'
  32                 }
  33         } ) );
  34
  35         mw.loader.addSource(
  36                 'testloader',
  37                 QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/load.mock.php' )
  38         );
  39
  40         QUnit.test( 'Initial check', 8, function ( assert ) {
  41                 assert.ok( window.jQuery, 'jQuery defined' );
  42                 assert.ok( window.$, '$ 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', 35, 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( 'undef' ), false, 'Map.set requires explicit value (no undefined default)' );
  92
  93                 assert.strictEqual( conf.set( 'undef', undefined ), true, 'Map.set allows setting value to `undefined`' );
  94                 assert.equal( conf.get( 'undef', 'fallback' ), undefined, 'Map.get supports retreiving value of `undefined`' );
  95
  96                 assert.strictEqual( conf.set( funky, 'Funky' ), false, 'Map.set returns boolean false if key was invalid (Function)' );
  97                 assert.strictEqual( conf.set( arry, 'Arry' ), false, 'Map.set returns boolean false if key was invalid (Array)' );
  98                 assert.strictEqual( conf.set( nummy, 'Nummy' ), false, 'Map.set returns boolean false if key was invalid (Number)' );
  99
 100                 assert.strictEqual( conf.get( funky ), null, 'Map.get ruturns null if selection was invalid (Function)' );
 101                 assert.strictEqual( conf.get( nummy ), null, 'Map.get ruturns null if selection was invalid (Number)' );
 102
 103                 conf.set( String( nummy ), 'I used to be a number' );
 104
 105                 assert.strictEqual( conf.exists( 'doesNotExist' ), false, 'Map.exists where property does not exist' );
 106                 assert.strictEqual( conf.exists( 'undef' ), true, 'Map.exists where value is `undefined`' );
 107                 assert.strictEqual( conf.exists( nummy ), false, 'Map.exists where key is invalid but looks like an existing key' );
 108
 109                 // Multiple values at once
 110                 someValues = {
 111                         foo: 'bar',
 112                         lorem: 'ipsum',
 113                         MediaWiki: true
 114                 };
 115                 assert.strictEqual( conf.set( someValues ), true, 'Map.set returns boolean true if multiple values were set by passing an object' );
 116                 assert.deepEqual( conf.get( [ 'foo', 'lorem' ] ), {
 117                         foo: 'bar',
 118                         lorem: 'ipsum'
 119                 }, 'Map.get returns multiple values correctly as an object' );
 120
 121                 assert.deepEqual( conf, new mw.Map( conf.values ), 'new mw.Map maps over existing values-bearing object' );
 122
 123                 assert.deepEqual( conf.get( [ 'foo', 'notExist' ] ), {
 124                         foo: 'bar',
 125                         notExist: null
 126                 }, 'Map.get return includes keys that were not found as null values' );
 127
 128                 // Interacting with globals and accessing the values object
 129                 assert.strictEqual( conf.get(), conf.values, 'Map.get returns the entire values object by reference (if called without arguments)' );
 130
 131                 conf.set( 'globalMapChecker', 'Hi' );
 132
 133                 assert.ok( ( 'globalMapChecker' in window ) === false, 'Map does not its store values in the window object by default' );
 134
 135                 globalConf = new mw.Map( true );
 136                 globalConf.set( 'anotherGlobalMapChecker', 'Hello' );
 137
 138                 assert.ok( 'anotherGlobalMapChecker' in window, 'global Map stores its values in the window object' );
 139
 140                 assert.equal( globalConf.get( 'anotherGlobalMapChecker' ), 'Hello', 'get value from global Map via get()' );
 141                 this.suppressWarnings();
 142                 assert.equal( window.anotherGlobalMapChecker, 'Hello', 'get value from global Map via window object' );
 143                 this.restoreWarnings();
 144
 145                 // Change value via global Map
 146                 globalConf.set( 'anotherGlobalMapChecker', 'Again' );
 147                 assert.equal( globalConf.get( 'anotherGlobalMapChecker' ), 'Again', 'Change in global Map reflected via get()' );
 148                 this.suppressWarnings();
 149                 assert.equal( window.anotherGlobalMapChecker, 'Again', 'Change in global Map reflected window object' );
 150                 this.restoreWarnings();
 151
 152                 // Change value via window object
 153                 this.suppressWarnings();
 154                 window.anotherGlobalMapChecker = 'World';
 155                 assert.equal( window.anotherGlobalMapChecker, 'World', 'Change in window object works' );
 156                 this.restoreWarnings();
 157                 assert.equal( globalConf.get( 'anotherGlobalMapChecker' ), 'Again', 'Change in window object not reflected in global Map' );
 158
 159                 // Whitelist this global variable for QUnit's 'noglobal' mode
 160                 if ( QUnit.config.noglobals ) {
 161                         QUnit.config.pollution.push( 'anotherGlobalMapChecker' );
 162                 }
 163         } );
 164
 165         QUnit.test( 'mw.config', 1, function ( assert ) {
 166                 assert.ok( mw.config instanceof mw.Map, 'mw.config instance of mw.Map' );
 167         } );
 168
 169         QUnit.test( 'mw.message & mw.messages', 100, function ( assert ) {
 170                 var goodbye, hello;
 171
 172                 // Convenience method for asserting the same result for multiple formats
 173                 function assertMultipleFormats( messageArguments, formats, expectedResult, assertMessage ) {
 174                         var format, i,
 175                                 len = formats.length;
 176
 177                         for ( i = 0; i < len; i++ ) {
 178                                 format = formats[ i ];
 179                                 assert.equal( mw.message.apply( null, messageArguments )[ format ](), expectedResult, assertMessage + ' when format is ' + format );
 180                         }
 181                 }
 182
 183                 assert.ok( mw.messages, 'messages defined' );
 184                 assert.ok( mw.messages instanceof mw.Map, 'mw.messages instance of mw.Map' );
 185                 assert.ok( mw.messages.set( 'hello', 'Hello <b>awesome</b> world' ), 'mw.messages.set: Register' );
 186
 187                 hello = mw.message( 'hello' );
 188
 189                 // https://phabricator.wikimedia.org/T46459
 190                 assert.equal( hello.format, 'text', 'Message property "format" defaults to "text"' );
 191
 192                 assert.strictEqual( hello.map, mw.messages, 'Message property "map" defaults to the global instance in mw.messages' );
 193                 assert.equal( hello.key, 'hello', 'Message property "key" (currect key)' );
 194                 assert.deepEqual( hello.parameters, [], 'Message property "parameters" defaults to an empty array' );
 195
 196                 // TODO
 197                 assert.ok( hello.params, 'Message prototype "params"' );
 198
 199                 hello.format = 'plain';
 200                 assert.equal( hello.toString(), 'Hello <b>awesome</b> world', 'Message.toString returns the message as a string with the current "format"' );
 201
 202                 assert.equal( hello.escaped(), 'Hello &lt;b&gt;awesome&lt;/b&gt; world', 'Message.escaped returns the escaped message' );
 203                 assert.equal( hello.format, 'escaped', 'Message.escaped correctly updated the "format" property' );
 204
 205                 assert.ok( mw.messages.set( 'multiple-curly-brace', '"{{SITENAME}}" is the home of {{int:other-message}}' ), 'mw.messages.set: Register' );
 206                 assertMultipleFormats( [ 'multiple-curly-brace' ], [ 'text', 'parse' ], '"' + siteName + '" is the home of Other Message', 'Curly brace format works correctly' );
 207                 assert.equal( mw.message( 'multiple-curly-brace' ).plain(), mw.messages.get( 'multiple-curly-brace' ), 'Plain format works correctly for curly brace message' );
 208                 assert.equal( mw.message( 'multiple-curly-brace' ).escaped(), mw.html.escape( '"' + siteName + '" is the home of Other Message' ), 'Escaped format works correctly for curly brace message' );
 209
 210                 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' );
 211                 assertMultipleFormats( [ 'multiple-square-brackets-and-ampersand' ], [ 'plain', 'text' ], mw.messages.get( 'multiple-square-brackets-and-ampersand' ), 'Square bracket message is not processed' );
 212                 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' );
 213                 assert.htmlEqual( mw.message( 'multiple-square-brackets-and-ampersand' ).parse(), 'Visit the ' +
 214                         '<a title="Project:Community portal" href="/wiki/Project:Community_portal">community portal</a>' +
 215                         ' &amp; <a title="Project:Help desk" href="/wiki/Project:Help_desk">help desk</a>', 'Internal links work with parse' );
 216
 217                 assertMultipleFormats( [ 'mediawiki-test-version-entrypoints-index-php' ], [ 'plain', 'text', 'escaped' ], mw.messages.get( 'mediawiki-test-version-entrypoints-index-php' ), 'External link markup is unprocessed' );
 218                 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' );
 219
 220                 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' );
 221                 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' );
 222                 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' );
 223
 224                 hello.parse();
 225                 assert.equal( hello.format, 'parse', 'Message.parse correctly updated the "format" property' );
 226
 227                 hello.plain();
 228                 assert.equal( hello.format, 'plain', 'Message.plain correctly updated the "format" property' );
 229
 230                 hello.text();
 231                 assert.equal( hello.format, 'text', 'Message.text correctly updated the "format" property' );
 232
 233                 assert.strictEqual( hello.exists(), true, 'Message.exists returns true for existing messages' );
 234
 235                 goodbye = mw.message( 'goodbye' );
 236                 assert.strictEqual( goodbye.exists(), false, 'Message.exists returns false for nonexistent messages' );
 237
 238                 assertMultipleFormats( [ 'goodbye' ], [ 'plain', 'text' ], '<goodbye>', 'Message.toString returns <key> if key does not exist' );
 239                 // bug 30684
 240                 assertMultipleFormats( [ 'goodbye' ], [ 'parse', 'escaped' ], '&lt;goodbye&gt;', 'Message.toString returns properly escaped &lt;key&gt; if key does not exist' );
 241
 242                 assert.ok( mw.messages.set( 'plural-test-msg', 'There {{PLURAL:$1|is|are}} $1 {{PLURAL:$1|result|results}}' ), 'mw.messages.set: Register' );
 243                 assertMultipleFormats( [ 'plural-test-msg', 6 ], [ 'text', 'parse', 'escaped' ], 'There are 6 results', 'plural get resolved' );
 244                 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' );
 245
 246                 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' );
 247                 assertMultipleFormats( [ 'plural-test-msg-explicit', 12 ], [ 'text', 'parse', 'escaped' ], 'There are a dozen cars', 'explicit plural get resolved' );
 248
 249                 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' );
 250                 assertMultipleFormats( [ 'plural-test-msg-explicit-beginning', 1 ], [ 'text', 'parse', 'escaped' ], 'Basket has one egg', 'explicit plural given at beginning get resolved for singular' );
 251                 assertMultipleFormats( [ 'plural-test-msg-explicit-beginning', 4 ], [ 'text', 'parse', 'escaped' ], 'Basket has 4 eggs', 'explicit plural given at beginning get resolved for plural' );
 252                 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' );
 253                 assertMultipleFormats( [ 'plural-test-msg-explicit-beginning', 0 ], [ 'text', 'parse', 'escaped' ], 'Basket has no eggs', 'explicit plural given at beginning get resolved for 0' );
 254
 255                 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' );
 256
 257                 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' );
 258
 259                 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' );
 260
 261                 assert.ok( mw.messages.set( 'mediawiki-test-categorytree-collapse-bullet', '[<b>−</b>]' ), 'mw.messages.set: Register' );
 262                 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' );
 263
 264                 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' );
 265                 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' );
 266
 267                 assertMultipleFormats( [ 'gender-plural-msg', 'male', 1 ], [ 'text', 'parse', 'escaped' ], 'he is awesome', 'Gender and plural are resolved' );
 268                 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' );
 269
 270                 assert.equal( mw.message( 'grammar-msg' ).plain(), mw.messages.get( 'grammar-msg' ), 'Grammar is not resolved in plain mode' );
 271                 assertMultipleFormats( [ 'grammar-msg' ], [ 'text', 'parse' ], 'Przeszukaj ' + siteName, 'Grammar is resolved' );
 272                 assert.equal( mw.message( 'grammar-msg' ).escaped(), 'Przeszukaj ' + siteName, 'Grammar is resolved in escaped mode' );
 273
 274                 assertMultipleFormats( [ 'formatnum-msg', '987654321.654321' ], [ 'text', 'parse', 'escaped' ], '987,654,321.654', 'formatnum is resolved' );
 275                 assert.equal( mw.message( 'formatnum-msg' ).plain(), mw.messages.get( 'formatnum-msg' ), 'formatnum is not resolved in plain mode' );
 276
 277                 assertMultipleFormats( [ 'int-msg' ], [ 'text', 'parse', 'escaped' ], 'Some Other Message', 'int is resolved' );
 278                 assert.equal( mw.message( 'int-msg' ).plain(), mw.messages.get( 'int-msg' ), 'int is not resolved in plain mode' );
 279
 280                 assert.ok( mw.messages.set( 'mediawiki-italics-msg', '<i>Very</i> important' ), 'mw.messages.set: Register' );
 281                 assertMultipleFormats( [ 'mediawiki-italics-msg' ], [ 'plain', 'text', 'parse' ], mw.messages.get( 'mediawiki-italics-msg' ), 'Simple italics unchanged' );
 282                 assert.htmlEqual(
 283                         mw.message( 'mediawiki-italics-msg' ).escaped(),
 284                         '&lt;i&gt;Very&lt;/i&gt; important',
 285                         'Italics are escaped in escaped mode'
 286                 );
 287
 288                 assert.ok( mw.messages.set( 'mediawiki-italics-with-link', 'An <i>italicized [[link|wiki-link]]</i>' ), 'mw.messages.set: Register' );
 289                 assertMultipleFormats( [ 'mediawiki-italics-with-link' ], [ 'plain', 'text' ], mw.messages.get( 'mediawiki-italics-with-link' ), 'Italics with link unchanged' );
 290                 assert.htmlEqual(
 291                         mw.message( 'mediawiki-italics-with-link' ).escaped(),
 292                         'An &lt;i&gt;italicized [[link|wiki-link]]&lt;/i&gt;',
 293                         'Italics and link unchanged except for escaping in escaped mode'
 294                 );
 295                 assert.htmlEqual(
 296                         mw.message( 'mediawiki-italics-with-link' ).parse(),
 297                         'An <i>italicized <a title="link" href="' + mw.util.getUrl( 'link' ) + '">wiki-link</i>',
 298                         'Italics with link inside in parse mode'
 299                 );
 300
 301                 assert.ok( mw.messages.set( 'mediawiki-script-msg', '<script  >alert( "Who put this script here?" );</script>' ), 'mw.messages.set: Register' );
 302                 assertMultipleFormats( [ 'mediawiki-script-msg' ], [ 'plain', 'text' ], mw.messages.get( 'mediawiki-script-msg' ), 'Script unchanged' );
 303                 assert.htmlEqual(
 304                         mw.message( 'mediawiki-script-msg' ).escaped(),
 305                         '&lt;script  &gt;alert( "Who put this script here?" );&lt;/script&gt;',
 306                         'Script escaped when using escaped format'
 307                 );
 308                 assert.htmlEqual(
 309                         mw.message( 'mediawiki-script-msg' ).parse(),
 310                         '&lt;script  &gt;alert( "Who put this script here?" );&lt;/script&gt;',
 311                         'Script escaped when using parse format'
 312                 );
 313
 314         } );
 315
 316         QUnit.test( 'mw.msg', 14, function ( assert ) {
 317                 assert.ok( mw.messages.set( 'hello', 'Hello <b>awesome</b> world' ), 'mw.messages.set: Register' );
 318                 assert.equal( mw.msg( 'hello' ), 'Hello <b>awesome</b> world', 'Gets message with default options (existing message)' );
 319                 assert.equal( mw.msg( 'goodbye' ), '<goodbye>', 'Gets message with default options (nonexistent message)' );
 320
 321                 assert.ok( mw.messages.set( 'plural-item', 'Found $1 {{PLURAL:$1|item|items}}' ), 'mw.messages.set: Register' );
 322                 assert.equal( mw.msg( 'plural-item', 5 ), 'Found 5 items', 'Apply plural for count 5' );
 323                 assert.equal( mw.msg( 'plural-item', 0 ), 'Found 0 items', 'Apply plural for count 0' );
 324                 assert.equal( mw.msg( 'plural-item', 1 ), 'Found 1 item', 'Apply plural for count 1' );
 325
 326                 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' );
 327
 328                 assert.equal( mw.msg( 'gender-plural-msg', 'male', 1 ), 'he is awesome', 'Gender test for male, plural count 1' );
 329                 assert.equal( mw.msg( 'gender-plural-msg', 'female', '1' ), 'she is awesome', 'Gender test for female, plural count 1' );
 330                 assert.equal( mw.msg( 'gender-plural-msg', 'unknown', 10 ), 'they are awesome', 'Gender test for neutral, plural count 10' );
 331
 332                 assert.equal( mw.msg( 'grammar-msg' ), 'Przeszukaj ' + siteName, 'Grammar is resolved' );
 333
 334                 assert.equal( mw.msg( 'formatnum-msg', '987654321.654321' ), '987,654,321.654', 'formatnum is resolved' );
 335
 336                 assert.equal( mw.msg( 'int-msg' ), 'Some Other Message', 'int is resolved' );
 337         } );
 338
 339         /**
 340          * The sync style load test (for @import). This is, in a way, also an open bug for
 341          * ResourceLoader ("execute js after styles are loaded"), but browsers don't offer a
 342          * way to get a callback from when a stylesheet is loaded (that is, including any
 343          * `@import` rules inside). To work around this, we'll have a little time loop to check
 344          * if the styles apply.
 345          *
 346          * Note: This test originally used new Image() and onerror to get a callback
 347          * when the url is loaded, but that is fragile since it doesn't monitor the
 348          * same request as the css @import, and Safari 4 has issues with
 349          * onerror/onload not being fired at all in weird cases like this.
 350          */
 351         function assertStyleAsync( assert, $element, prop, val, fn ) {
 352                 var styleTestStart,
 353                         el = $element.get( 0 ),
 354                         styleTestTimeout = ( QUnit.config.testTimeout || 5000 ) - 200;
 355
 356                 function isCssImportApplied() {
 357                         // Trigger reflow, repaint, redraw, whatever (cross-browser)
 358                         var x = $element.css( 'height' );
 359                         x = el.innerHTML;
 360                         el.className = el.className;
 361                         x = document.documentElement.clientHeight;
 362
 363                         return $element.css( prop ) === val;
 364                 }
 365
 366                 function styleTestLoop() {
 367                         var styleTestSince = new Date().getTime() - styleTestStart;
 368                         // If it is passing or if we timed out, run the real test and stop the loop
 369                         if ( isCssImportApplied() || styleTestSince > styleTestTimeout ) {
 370                                 assert.equal( $element.css( prop ), val,
 371                                         'style "' + prop + ': ' + val + '" from url is applied (after ' + styleTestSince + 'ms)'
 372                                 );
 373
 374                                 if ( fn ) {
 375                                         fn();
 376                                 }
 377
 378                                 return;
 379                         }
 380                         // Otherwise, keep polling
 381                         setTimeout( styleTestLoop );
 382                 }
 383
 384                 // Start the loop
 385                 styleTestStart = new Date().getTime();
 386                 styleTestLoop();
 387         }
 388
 389         function urlStyleTest( selector, prop, val ) {
 390                 return QUnit.fixurl(
 391                         mw.config.get( 'wgScriptPath' ) +
 392                                 '/tests/qunit/data/styleTest.css.php?' +
 393                                 $.param( {
 394                                         selector: selector,
 395                                         prop: prop,
 396                                         val: val
 397                                 } )
 398                 );
 399         }
 400
 401         QUnit.asyncTest( 'mw.loader', 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.callback', [ QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/callMwLoaderTestCallback.js' ) ] );
 411
 412                 mw.loader.using( 'test.callback', function () {
 413
 414                         // /sample/awesome.js declares the "mw.loader.testCallback" function
 415                         // which contains a call to start() and ok()
 416                         assert.strictEqual( isAwesomeDone, true, 'test.callback module should\'ve caused isAwesomeDone to be true' );
 417                         delete mw.loader.testCallback;
 418
 419                 }, function () {
 420                         QUnit.start();
 421                         assert.ok( false, 'Error callback fired while loader.using "test.callback" module' );
 422                 } );
 423         } );
 424
 425         QUnit.asyncTest( 'mw.loader with Object method as module name', 2, function ( assert ) {
 426                 var isAwesomeDone;
 427
 428                 mw.loader.testCallback = function () {
 429                         QUnit.start();
 430                         assert.strictEqual( isAwesomeDone, undefined, 'Implementing module hasOwnProperty: isAwesomeDone should still be undefined' );
 431                         isAwesomeDone = true;
 432                 };
 433
 434                 mw.loader.implement( 'hasOwnProperty', [ QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/callMwLoaderTestCallback.js' ) ], {}, {} );
 435
 436                 mw.loader.using( 'hasOwnProperty', function () {
 437
 438                         // /sample/awesome.js declares the "mw.loader.testCallback" function
 439                         // which contains a call to start() and ok()
 440                         assert.strictEqual( isAwesomeDone, true, 'hasOwnProperty module should\'ve caused isAwesomeDone to be true' );
 441                         delete mw.loader.testCallback;
 442
 443                 }, function () {
 444                         QUnit.start();
 445                         assert.ok( false, 'Error callback fired while loader.using "hasOwnProperty" module' );
 446                 } );
 447         } );
 448
 449         QUnit.asyncTest( 'mw.loader.using( .. ) Promise', 2, function ( assert ) {
 450                 var isAwesomeDone;
 451
 452                 mw.loader.testCallback = function () {
 453                         QUnit.start();
 454                         assert.strictEqual( isAwesomeDone, undefined, 'Implementing module is.awesome: isAwesomeDone should still be undefined' );
 455                         isAwesomeDone = true;
 456                 };
 457
 458                 mw.loader.implement( 'test.promise', [ QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/callMwLoaderTestCallback.js' ) ] );
 459
 460                 mw.loader.using( 'test.promise' )
 461                 .done( function () {
 462
 463                         // /sample/awesome.js declares the "mw.loader.testCallback" function
 464                         // which contains a call to start() and ok()
 465                         assert.strictEqual( isAwesomeDone, true, 'test.promise module should\'ve caused isAwesomeDone to be true' );
 466                         delete mw.loader.testCallback;
 467
 468                 } )
 469                 .fail( function () {
 470                         QUnit.start();
 471                         assert.ok( false, 'Error callback fired while loader.using "test.promise" module' );
 472                 } );
 473         } );
 474
 475         QUnit.asyncTest( 'mw.loader.implement( styles={ "css": [text, ..] } )', 2, function ( assert ) {
 476                 var $element = $( '<div class="mw-test-implement-a"></div>' ).appendTo( '#qunit-fixture' );
 477
 478                 assert.notEqual(
 479                         $element.css( 'float' ),
 480                         'right',
 481                         'style is clear'
 482                 );
 483
 484                 mw.loader.implement(
 485                         'test.implement.a',
 486                         function () {
 487                                 assert.equal(
 488                                         $element.css( 'float' ),
 489                                         'right',
 490                                         'style is applied'
 491                                 );
 492                                 QUnit.start();
 493                         },
 494                         {
 495                                 all: '.mw-test-implement-a { float: right; }'
 496                         }
 497                 );
 498
 499                 mw.loader.load( [
 500                         'test.implement.a'
 501                 ] );
 502         } );
 503
 504         QUnit.asyncTest( 'mw.loader.implement( styles={ "url": { <media>: [url, ..] } } )', 7, function ( assert ) {
 505                 var $element1 = $( '<div class="mw-test-implement-b1"></div>' ).appendTo( '#qunit-fixture' ),
 506                         $element2 = $( '<div class="mw-test-implement-b2"></div>' ).appendTo( '#qunit-fixture' ),
 507                         $element3 = $( '<div class="mw-test-implement-b3"></div>' ).appendTo( '#qunit-fixture' );
 508
 509                 assert.notEqual(
 510                         $element1.css( 'text-align' ),
 511                         'center',
 512                         'style is clear'
 513                 );
 514                 assert.notEqual(
 515                         $element2.css( 'float' ),
 516                         'left',
 517                         'style is clear'
 518                 );
 519                 assert.notEqual(
 520                         $element3.css( 'text-align' ),
 521                         'right',
 522                         'style is clear'
 523                 );
 524
 525                 mw.loader.implement(
 526                         'test.implement.b',
 527                         function () {
 528                                 // Note: QUnit.start() must only be called when the entire test is
 529                                 // complete. So, make sure that we don't start until *both*
 530                                 // assertStyleAsync calls have completed.
 531                                 var pending = 2;
 532                                 assertStyleAsync( assert, $element2, 'float', 'left', function () {
 533                                         assert.notEqual( $element1.css( 'text-align' ), 'center', 'print style is not applied' );
 534
 535                                         pending--;
 536                                         if ( pending === 0 ) {
 537                                                 QUnit.start();
 538                                         }
 539                                 } );
 540                                 assertStyleAsync( assert, $element3, 'float', 'right', function () {
 541                                         assert.notEqual( $element1.css( 'text-align' ), 'center', 'print style is not applied' );
 542
 543                                         pending--;
 544                                         if ( pending === 0 ) {
 545                                                 QUnit.start();
 546                                         }
 547                                 } );
 548                         },
 549                         {
 550                                 url: {
 551                                         print: [ urlStyleTest( '.mw-test-implement-b1', 'text-align', 'center' ) ],
 552                                         screen: [
 553                                                 // bug 40834: Make sure it actually works with more than 1 stylesheet reference
 554                                                 urlStyleTest( '.mw-test-implement-b2', 'float', 'left' ),
 555                                                 urlStyleTest( '.mw-test-implement-b3', 'float', 'right' )
 556                                         ]
 557                                 }
 558                         }
 559                 );
 560
 561                 mw.loader.load( [
 562                         'test.implement.b'
 563                 ] );
 564         } );
 565
 566         // Backwards compatibility
 567         QUnit.asyncTest( 'mw.loader.implement( styles={ <media>: text } ) (back-compat)', 2, function ( assert ) {
 568                 var $element = $( '<div class="mw-test-implement-c"></div>' ).appendTo( '#qunit-fixture' );
 569
 570                 assert.notEqual(
 571                         $element.css( 'float' ),
 572                         'right',
 573                         'style is clear'
 574                 );
 575
 576                 mw.loader.implement(
 577                         'test.implement.c',
 578                         function () {
 579                                 assert.equal(
 580                                         $element.css( 'float' ),
 581                                         'right',
 582                                         'style is applied'
 583                                 );
 584                                 QUnit.start();
 585                         },
 586                         {
 587                                 all: '.mw-test-implement-c { float: right; }'
 588                         }
 589                 );
 590
 591                 mw.loader.load( [
 592                         'test.implement.c'
 593                 ] );
 594         } );
 595
 596         // Backwards compatibility
 597         QUnit.asyncTest( 'mw.loader.implement( styles={ <media>: [url, ..] } ) (back-compat)', 4, function ( assert ) {
 598                 var $element = $( '<div class="mw-test-implement-d"></div>' ).appendTo( '#qunit-fixture' ),
 599                         $element2 = $( '<div class="mw-test-implement-d2"></div>' ).appendTo( '#qunit-fixture' );
 600
 601                 assert.notEqual(
 602                         $element.css( 'float' ),
 603                         'right',
 604                         'style is clear'
 605                 );
 606                 assert.notEqual(
 607                         $element2.css( 'text-align' ),
 608                         'center',
 609                         'style is clear'
 610                 );
 611
 612                 mw.loader.implement(
 613                         'test.implement.d',
 614                         function () {
 615                                 assertStyleAsync( assert, $element, 'float', 'right', function () {
 616
 617                                         assert.notEqual( $element2.css( 'text-align' ), 'center', 'print style is not applied (bug 40500)' );
 618
 619                                         QUnit.start();
 620                                 } );
 621                         },
 622                         {
 623                                 all: [ urlStyleTest( '.mw-test-implement-d', 'float', 'right' ) ],
 624                                 print: [ urlStyleTest( '.mw-test-implement-d2', 'text-align', 'center' ) ]
 625                         }
 626                 );
 627
 628                 mw.loader.load( [
 629                         'test.implement.d'
 630                 ] );
 631         } );
 632
 633         // @import (bug 31676)
 634         QUnit.asyncTest( 'mw.loader.implement( styles has @import )', 7, function ( assert ) {
 635                 var isJsExecuted, $element;
 636
 637                 mw.loader.implement(
 638                         'test.implement.import',
 639                         function () {
 640                                 assert.strictEqual( isJsExecuted, undefined, 'script not executed multiple times' );
 641                                 isJsExecuted = true;
 642
 643                                 assert.equal( mw.loader.getState( 'test.implement.import' ), 'executing', 'module state during implement() script execution' );
 644
 645                                 $element = $( '<div class="mw-test-implement-import">Foo bar</div>' ).appendTo( '#qunit-fixture' );
 646
 647                                 assert.equal( mw.msg( 'test-foobar' ), 'Hello Foobar, $1!', 'messages load before script execution' );
 648
 649                                 assertStyleAsync( assert, $element, 'float', 'right', function () {
 650                                         assert.equal( $element.css( 'text-align' ), 'center',
 651                                                 'CSS styles after the @import rule are working'
 652                                         );
 653
 654                                         QUnit.start();
 655                                 } );
 656                         },
 657                         {
 658                                 css: [
 659                                         '@import url(\''
 660                                                 + urlStyleTest( '.mw-test-implement-import', 'float', 'right' )
 661                                                 + '\');\n'
 662                                                 + '.mw-test-implement-import { text-align: center; }'
 663                                 ]
 664                         },
 665                         {
 666                                 'test-foobar': 'Hello Foobar, $1!'
 667                         }
 668                 );
 669
 670                 mw.loader.using( 'test.implement.import' ).always( function () {
 671                         assert.strictEqual( isJsExecuted, true, 'script executed' );
 672                         assert.equal( mw.loader.getState( 'test.implement.import' ), 'ready', 'module state after script execution' );
 673                 } );
 674         } );
 675
 676         QUnit.asyncTest( 'mw.loader.implement( dependency with styles )', 4, function ( assert ) {
 677                 var $element = $( '<div class="mw-test-implement-e"></div>' ).appendTo( '#qunit-fixture' ),
 678                         $element2 = $( '<div class="mw-test-implement-e2"></div>' ).appendTo( '#qunit-fixture' );
 679
 680                 assert.notEqual(
 681                         $element.css( 'float' ),
 682                         'right',
 683                         'style is clear'
 684                 );
 685                 assert.notEqual(
 686                         $element2.css( 'float' ),
 687                         'left',
 688                         'style is clear'
 689                 );
 690
 691                 mw.loader.register( [
 692                         [ 'test.implement.e', '0', [ 'test.implement.e2' ] ],
 693                         [ 'test.implement.e2', '0' ]
 694                 ] );
 695
 696                 mw.loader.implement(
 697                         'test.implement.e',
 698                         function () {
 699                                 assert.equal(
 700                                         $element.css( 'float' ),
 701                                         'right',
 702                                         'Depending module\'s style is applied'
 703                                 );
 704                                 QUnit.start();
 705                         },
 706                         {
 707                                 all: '.mw-test-implement-e { float: right; }'
 708                         }
 709                 );
 710
 711                 mw.loader.implement(
 712                         'test.implement.e2',
 713                         function () {
 714                                 assert.equal(
 715                                         $element2.css( 'float' ),
 716                                         'left',
 717                                         'Dependency\'s style is applied'
 718                                 );
 719                         },
 720                         {
 721                                 all: '.mw-test-implement-e2 { float: left; }'
 722                         }
 723                 );
 724
 725                 mw.loader.load( [
 726                         'test.implement.e'
 727                 ] );
 728         } );
 729
 730         QUnit.test( 'mw.loader.implement( only scripts )', 1, function ( assert ) {
 731                 mw.loader.implement( 'test.onlyscripts', function () {} );
 732                 assert.strictEqual( mw.loader.getState( 'test.onlyscripts' ), 'ready' );
 733         } );
 734
 735         QUnit.asyncTest( 'mw.loader.implement( only messages )', 2, function ( assert ) {
 736                 assert.assertFalse( mw.messages.exists( 'bug_29107' ), 'Verify that the test message doesn\'t exist yet' );
 737
 738                 // jscs: disable requireCamelCaseOrUpperCaseIdentifiers
 739                 mw.loader.implement( 'test.implement.msgs', [], {}, { bug_29107: 'loaded' } );
 740                 // jscs: enable requireCamelCaseOrUpperCaseIdentifiers
 741                 mw.loader.using( 'test.implement.msgs', function () {
 742                         QUnit.start();
 743                         assert.ok( mw.messages.exists( 'bug_29107' ), 'Bug 29107: messages-only module should implement ok' );
 744                 }, function () {
 745                         QUnit.start();
 746                         assert.ok( false, 'Error callback fired while implementing "test.implement.msgs" module' );
 747                 } );
 748         } );
 749
 750         QUnit.test( 'mw.loader with broken indirect dependency', 4, function ( assert ) {
 751                 // don't emit an error event
 752                 this.sandbox.stub( mw, 'track' );
 753
 754                 mw.loader.register( [
 755                         [ 'test.module1', '0' ],
 756                         [ 'test.module2', '0', [ 'test.module1' ] ],
 757                         [ 'test.module3', '0', [ 'test.module2' ] ]
 758                 ] );
 759                 mw.loader.implement( 'test.module1', function () {
 760                         throw new Error( 'expected' );
 761                 }, {}, {} );
 762                 assert.strictEqual( mw.loader.getState( 'test.module1' ), 'error', 'Expected "error" state for test.module1' );
 763                 assert.strictEqual( mw.loader.getState( 'test.module2' ), 'error', 'Expected "error" state for test.module2' );
 764                 assert.strictEqual( mw.loader.getState( 'test.module3' ), 'error', 'Expected "error" state for test.module3' );
 765
 766                 assert.strictEqual( mw.track.callCount, 1 );
 767         } );
 768
 769         QUnit.test( 'mw.loader with circular dependency', 1, function ( assert ) {
 770                 mw.loader.register( [
 771                         [ 'test.circle1', '0', [ 'test.circle2' ] ],
 772                         [ 'test.circle2', '0', [ 'test.circle3' ] ],
 773                         [ 'test.circle3', '0', [ 'test.circle1' ] ]
 774                 ] );
 775                 assert.throws( function () {
 776                         mw.loader.using( 'test.circle3' );
 777                 }, /Circular/, 'Detect circular dependency' );
 778         } );
 779
 780         QUnit.test( 'mw.loader out-of-order implementation', 9, function ( assert ) {
 781                 mw.loader.register( [
 782                         [ 'test.module4', '0' ],
 783                         [ 'test.module5', '0', [ 'test.module4' ] ],
 784                         [ 'test.module6', '0', [ 'test.module5' ] ]
 785                 ] );
 786                 mw.loader.implement( 'test.module4', function () {} );
 787                 assert.strictEqual( mw.loader.getState( 'test.module4' ), 'ready', 'Expected "ready" state for test.module4' );
 788                 assert.strictEqual( mw.loader.getState( 'test.module5' ), 'registered', 'Expected "registered" state for test.module5' );
 789                 assert.strictEqual( mw.loader.getState( 'test.module6' ), 'registered', 'Expected "registered" state for test.module6' );
 790                 mw.loader.implement( 'test.module6', function () {} );
 791                 assert.strictEqual( mw.loader.getState( 'test.module4' ), 'ready', 'Expected "ready" state for test.module4' );
 792                 assert.strictEqual( mw.loader.getState( 'test.module5' ), 'registered', 'Expected "registered" state for test.module5' );
 793                 assert.strictEqual( mw.loader.getState( 'test.module6' ), 'loaded', 'Expected "loaded" state for test.module6' );
 794                 mw.loader.implement( 'test.module5', function () {} );
 795                 assert.strictEqual( mw.loader.getState( 'test.module4' ), 'ready', 'Expected "ready" state for test.module4' );
 796                 assert.strictEqual( mw.loader.getState( 'test.module5' ), 'ready', 'Expected "ready" state for test.module5' );
 797                 assert.strictEqual( mw.loader.getState( 'test.module6' ), 'ready', 'Expected "ready" state for test.module6' );
 798         } );
 799
 800         QUnit.test( 'mw.loader missing dependency', 13, function ( assert ) {
 801                 mw.loader.register( [
 802                         [ 'test.module7', '0' ],
 803                         [ 'test.module8', '0', [ 'test.module7' ] ],
 804                         [ 'test.module9', '0', [ 'test.module8' ] ]
 805                 ] );
 806                 mw.loader.implement( 'test.module8', function () {} );
 807                 assert.strictEqual( mw.loader.getState( 'test.module7' ), 'registered', 'Expected "registered" state for test.module7' );
 808                 assert.strictEqual( mw.loader.getState( 'test.module8' ), 'loaded', 'Expected "loaded" state for test.module8' );
 809                 assert.strictEqual( mw.loader.getState( 'test.module9' ), 'registered', 'Expected "registered" state for test.module9' );
 810                 mw.loader.state( 'test.module7', 'missing' );
 811                 assert.strictEqual( mw.loader.getState( 'test.module7' ), 'missing', 'Expected "missing" state for test.module7' );
 812                 assert.strictEqual( mw.loader.getState( 'test.module8' ), 'error', 'Expected "error" state for test.module8' );
 813                 assert.strictEqual( mw.loader.getState( 'test.module9' ), 'error', 'Expected "error" state for test.module9' );
 814                 mw.loader.implement( 'test.module9', function () {} );
 815                 assert.strictEqual( mw.loader.getState( 'test.module7' ), 'missing', 'Expected "missing" state for test.module7' );
 816                 assert.strictEqual( mw.loader.getState( 'test.module8' ), 'error', 'Expected "error" state for test.module8' );
 817                 assert.strictEqual( mw.loader.getState( 'test.module9' ), 'error', 'Expected "error" state for test.module9' );
 818                 mw.loader.using(
 819                         [ 'test.module7' ],
 820                         function () {
 821                                 assert.ok( false, 'Success fired despite missing dependency' );
 822                                 assert.ok( true, 'QUnit expected() count dummy' );
 823                         },
 824                         function ( e, dependencies ) {
 825                                 assert.strictEqual( $.isArray( dependencies ), true, 'Expected array of dependencies' );
 826                                 assert.deepEqual( dependencies, [ 'test.module7' ], 'Error callback called with module test.module7' );
 827                         }
 828                 );
 829                 mw.loader.using(
 830                         [ 'test.module9' ],
 831                         function () {
 832                                 assert.ok( false, 'Success fired despite missing dependency' );
 833                                 assert.ok( true, 'QUnit expected() count dummy' );
 834                         },
 835                         function ( e, dependencies ) {
 836                                 assert.strictEqual( $.isArray( dependencies ), true, 'Expected array of dependencies' );
 837                                 dependencies.sort();
 838                                 assert.deepEqual(
 839                                         dependencies,
 840                                         [ 'test.module7', 'test.module8', 'test.module9' ],
 841                                         'Error callback called with all three modules as dependencies'
 842                                 );
 843                         }
 844                 );
 845         } );
 846
 847         QUnit.asyncTest( 'mw.loader dependency handling', 5, function ( assert ) {
 848                 mw.loader.register( [
 849                         // [module, version, dependencies, group, source]
 850                         [ 'testMissing', '1', [], null, 'testloader' ],
 851                         [ 'testUsesMissing', '1', [ 'testMissing' ], null, 'testloader' ],
 852                         [ 'testUsesNestedMissing', '1', [ 'testUsesMissing' ], null, 'testloader' ]
 853                 ] );
 854
 855                 function verifyModuleStates() {
 856                         assert.equal( mw.loader.getState( 'testMissing' ), 'missing', 'Module not known to server must have state "missing"' );
 857                         assert.equal( mw.loader.getState( 'testUsesMissing' ), 'error', 'Module with missing dependency must have state "error"' );
 858                         assert.equal( mw.loader.getState( 'testUsesNestedMissing' ), 'error', 'Module with indirect missing dependency must have state "error"' );
 859                 }
 860
 861                 mw.loader.using( [ 'testUsesNestedMissing' ],
 862                         function () {
 863                                 assert.ok( false, 'Error handler should be invoked.' );
 864                                 assert.ok( true ); // Dummy to reach QUnit expect()
 865
 866                                 verifyModuleStates();
 867
 868                                 QUnit.start();
 869                         },
 870                         function ( e, badmodules ) {
 871                                 assert.ok( true, 'Error handler should be invoked.' );
 872                                 // As soon as server spits out state('testMissing', 'missing');
 873                                 // it will bubble up and trigger the error callback.
 874                                 // Therefor the badmodules array is not testUsesMissing or testUsesNestedMissing.
 875                                 assert.deepEqual( badmodules, [ 'testMissing' ], 'Bad modules as expected.' );
 876
 877                                 verifyModuleStates();
 878
 879                                 QUnit.start();
 880                         }
 881                 );
 882         } );
 883
 884         QUnit.asyncTest( 'mw.loader skin-function handling', 5, function ( assert ) {
 885                 mw.loader.register( [
 886                         // [module, version, dependencies, group, source, skip]
 887                         [ 'testSkipped', '1', [], null, 'testloader', 'return true;' ],
 888                         [ 'testNotSkipped', '1', [], null, 'testloader', 'return false;' ],
 889                         [ 'testUsesSkippable', '1', [ 'testSkipped', 'testNotSkipped' ], null, 'testloader' ]
 890                 ] );
 891
 892                 function verifyModuleStates() {
 893                         assert.equal( mw.loader.getState( 'testSkipped' ), 'ready', 'Module is ready when skipped' );
 894                         assert.equal( mw.loader.getState( 'testNotSkipped' ), 'ready', 'Module is ready when not skipped but loaded' );
 895                         assert.equal( mw.loader.getState( 'testUsesSkippable' ), 'ready', 'Module is ready when skippable dependencies are ready' );
 896                 }
 897
 898                 mw.loader.using( [ 'testUsesSkippable' ],
 899                         function () {
 900                                 assert.ok( true, 'Success handler should be invoked.' );
 901                                 assert.ok( true ); // Dummy to match error handler and reach QUnit expect()
 902
 903                                 verifyModuleStates();
 904
 905                                 QUnit.start();
 906                         },
 907                         function ( e, badmodules ) {
 908                                 assert.ok( false, 'Error handler should not be invoked.' );
 909                                 assert.deepEqual( badmodules, [], 'Bad modules as expected.' );
 910
 911                                 verifyModuleStates();
 912
 913                                 QUnit.start();
 914                         }
 915                 );
 916         } );
 917
 918         QUnit.asyncTest( 'mw.loader( "//protocol-relative" ) (bug 30825)', 2, function ( assert ) {
 919                 // This bug was actually already fixed in 1.18 and later when discovered in 1.17.
 920                 // Test is for regressions!
 921
 922                 // Forge a URL to the test callback script
 923                 var target = QUnit.fixurl(
 924                         mw.config.get( 'wgServer' ) + mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/qunitOkCall.js'
 925                 );
 926
 927                 // Confirm that mw.loader.load() works with protocol-relative URLs
 928                 target = target.replace( /https?:/, '' );
 929
 930                 assert.equal( target.slice( 0, 2 ), '//',
 931                         'URL must be relative to test relative URLs!'
 932                 );
 933
 934                 // Async!
 935                 // The target calls QUnit.start
 936                 mw.loader.load( target );
 937         } );
 938
 939         QUnit.asyncTest( 'mw.loader( "/absolute-path" )', 2, function ( assert ) {
 940                 // Forge a URL to the test callback script
 941                 var target = QUnit.fixurl(
 942                         mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/qunitOkCall.js'
 943                 );
 944
 945                 // Confirm that mw.loader.load() works with absolute-paths (relative to current hostname)
 946                 assert.equal( target.slice( 0, 1 ), '/', 'URL is relative to document root' );
 947
 948                 // Async!
 949                 // The target calls QUnit.start
 950                 mw.loader.load( target );
 951         } );
 952
 953         QUnit.asyncTest( 'mw.loader() executing race (T112232)', 2, function ( assert ) {
 954                 var done = false;
 955
 956                 // The red herring schedules its CSS buffer first. In T112232, a bug in the
 957                 // state machine would cause the job for testRaceLoadMe to run with an earlier job.
 958                 mw.loader.implement(
 959                         'testRaceRedHerring',
 960                         function () {},
 961                         { css: [ '.mw-testRaceRedHerring {}' ] }
 962                 );
 963                 mw.loader.implement(
 964                         'testRaceLoadMe',
 965                         function () {
 966                                 done = true;
 967                         },
 968                         { css: [ '.mw-testRaceLoadMe { float: left; }' ] }
 969                 );
 970
 971                 mw.loader.load( [ 'testRaceRedHerring', 'testRaceLoadMe' ] );
 972                 mw.loader.using( 'testRaceLoadMe', function () {
 973                         assert.strictEqual( done, true, 'script ran' );
 974                         assert.strictEqual( mw.loader.getState( 'testRaceLoadMe' ), 'ready', 'state' );
 975                 } ).always( QUnit.start );
 976         } );
 977
 978         QUnit.test( 'mw.hook', 13, function ( assert ) {
 979                 var hook, add, fire, chars, callback;
 980
 981                 mw.hook( 'test.hook.unfired' ).add( function () {
 982                         assert.ok( false, 'Unfired hook' );
 983                 } );
 984
 985                 mw.hook( 'test.hook.basic' ).add( function () {
 986                         assert.ok( true, 'Basic callback' );
 987                 } );
 988                 mw.hook( 'test.hook.basic' ).fire();
 989
 990                 mw.hook( 'hasOwnProperty' ).add( function () {
 991                         assert.ok( true, 'hook with name of predefined method' );
 992                 } );
 993                 mw.hook( 'hasOwnProperty' ).fire();
 994
 995                 mw.hook( 'test.hook.data' ).add( function ( data1, data2 ) {
 996                         assert.equal( data1, 'example', 'Fire with data (string param)' );
 997                         assert.deepEqual( data2, [ 'two' ], 'Fire with data (array param)' );
 998                 } );
 999                 mw.hook( 'test.hook.data' ).fire( 'example', [ 'two' ] );
1000
1001                 hook = mw.hook( 'test.hook.chainable' );
1002                 assert.strictEqual( hook.add(), hook, 'hook.add is chainable' );
1003                 assert.strictEqual( hook.remove(), hook, 'hook.remove is chainable' );
1004                 assert.strictEqual( hook.fire(), hook, 'hook.fire is chainable' );
1005
1006                 hook = mw.hook( 'test.hook.detach' );
1007                 add = hook.add;
1008                 fire = hook.fire;
1009                 add( function ( x, y ) {
1010                         assert.deepEqual( [ x, y ], [ 'x', 'y' ], 'Detached (contextless) with data' );
1011                 } );
1012                 fire( 'x', 'y' );
1013
1014                 mw.hook( 'test.hook.fireBefore' ).fire().add( function () {
1015                         assert.ok( true, 'Invoke handler right away if it was fired before' );
1016                 } );
1017
1018                 mw.hook( 'test.hook.fireTwiceBefore' ).fire().fire().add( function () {
1019                         assert.ok( true, 'Invoke handler right away if it was fired before (only last one)' );
1020                 } );
1021
1022                 chars = [];
1023
1024                 mw.hook( 'test.hook.many' )
1025                         .add( function ( chr ) {
1026                                 chars.push( chr );
1027                         } )
1028                         .fire( 'x' ).fire( 'y' ).fire( 'z' )
1029                         .add( function ( chr ) {
1030                                 assert.equal( chr, 'z', 'Adding callback later invokes right away with last data' );
1031                         } );
1032
1033                 assert.deepEqual( chars, [ 'x', 'y', 'z' ], 'Multiple callbacks with multiple fires' );
1034
1035                 chars = [];
1036                 callback = function ( chr ) {
1037                         chars.push( chr );
1038                 };
1039
1040                 mw.hook( 'test.hook.variadic' )
1041                         .add(
1042                                 callback,
1043                                 callback,
1044                                 function ( chr ) {
1045                                         chars.push( chr );
1046                                 },
1047                                 callback
1048                         )
1049                         .fire( 'x' )
1050                         .remove(
1051                                 function () {
1052                                         'not-added';
1053                                 },
1054                                 callback
1055                         )
1056                         .fire( 'y' )
1057                         .remove( callback )
1058                         .fire( 'z' );
1059
1060                 assert.deepEqual(
1061                         chars,
1062                         [ 'x', 'x', 'x', 'x', 'y', 'z' ],
1063                         '"add" and "remove" support variadic arguments. ' +
1064                                 '"add" does not filter unique. ' +
1065                                 '"remove" removes all equal by reference. ' +
1066                                 '"remove" is silent if the function is not found'
1067                 );
1068         } );
1069
1070 }( mediaWiki, jQuery ) );