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.format', 2, function ( assert ) {
  61                 assert.equal(
  62                         mw.format( 'Format $1 $2', 'foo', 'bar' ),
  63                         'Format foo bar',
  64                         'Simple parameters'
  65                 );
  66                 assert.equal(
  67                         mw.format( 'Format $1 $2' ),
  68                         'Format $1 $2',
  69                         'Missing parameters'
  70                 );
  71         } );
  72
  73         QUnit.test( 'mw.Map', 35, function ( assert ) {
  74                 var arry, conf, funky, globalConf, nummy, someValues;
  75
  76                 conf = new mw.Map();
  77                 // Dummy variables
  78                 funky = function () {};
  79                 arry = [];
  80                 nummy = 7;
  81
  82                 // Single get and set
  83
  84                 assert.strictEqual( conf.set( 'foo', 'Bar' ), true, 'Map.set returns boolean true if a value was set for a valid key string' );
  85                 assert.equal( conf.get( 'foo' ), 'Bar', 'Map.get returns a single value value correctly' );
  86
  87                 assert.strictEqual( conf.get( 'example' ), null, 'Map.get returns null if selection was a string and the key was not found' );
  88                 assert.strictEqual( conf.get( 'example', arry ), arry, 'Map.get returns fallback by reference if the key was not found' );
  89                 assert.strictEqual( conf.get( 'example', undefined ), undefined, 'Map.get supports `undefined` as fallback instead of `null`' );
  90
  91                 assert.strictEqual( conf.get( 'constructor' ), null, 'Map.get does not look at Object.prototype of internal storage (constructor)' );
  92                 assert.strictEqual( conf.get( 'hasOwnProperty' ), null, 'Map.get does not look at Object.prototype of internal storage (hasOwnProperty)' );
  93
  94                 conf.set( 'hasOwnProperty', function () { return true; } );
  95                 assert.strictEqual( conf.get( 'example', 'missing' ), 'missing', 'Map.get uses neutral hasOwnProperty method (positive)' );
  96
  97                 conf.set( 'example', 'Foo' );
  98                 conf.set( 'hasOwnProperty', function () { return false; } );
  99                 assert.strictEqual( conf.get( 'example' ), 'Foo', 'Map.get uses neutral hasOwnProperty method (negative)' );
 100
 101                 assert.strictEqual( conf.set( 'constructor', 42 ), true, 'Map.set for key "constructor"' );
 102                 assert.strictEqual( conf.get( 'constructor' ), 42, 'Map.get for key "constructor"' );
 103
 104                 assert.strictEqual( conf.set( 'undef' ), false, 'Map.set requires explicit value (no undefined default)' );
 105
 106                 assert.strictEqual( conf.set( 'undef', undefined ), true, 'Map.set allows setting value to `undefined`' );
 107                 assert.equal( conf.get( 'undef', 'fallback' ), undefined, 'Map.get supports retreiving value of `undefined`' );
 108
 109                 assert.strictEqual( conf.set( funky, 'Funky' ), false, 'Map.set returns boolean false if key was invalid (Function)' );
 110                 assert.strictEqual( conf.set( arry, 'Arry' ), false, 'Map.set returns boolean false if key was invalid (Array)' );
 111                 assert.strictEqual( conf.set( nummy, 'Nummy' ), false, 'Map.set returns boolean false if key was invalid (Number)' );
 112
 113                 assert.strictEqual( conf.get( funky ), null, 'Map.get ruturns null if selection was invalid (Function)' );
 114                 assert.strictEqual( conf.get( nummy ), null, 'Map.get ruturns null if selection was invalid (Number)' );
 115
 116                 conf.set( String( nummy ), 'I used to be a number' );
 117
 118                 assert.strictEqual( conf.exists( 'doesNotExist' ), false, 'Map.exists where property does not exist' );
 119                 assert.strictEqual( conf.exists( 'undef' ), true, 'Map.exists where value is `undefined`' );
 120                 assert.strictEqual( conf.exists( nummy ), false, 'Map.exists where key is invalid but looks like an existing key' );
 121
 122                 // Multiple values at once
 123                 someValues = {
 124                         foo: 'bar',
 125                         lorem: 'ipsum',
 126                         MediaWiki: true
 127                 };
 128                 assert.strictEqual( conf.set( someValues ), true, 'Map.set returns boolean true if multiple values were set by passing an object' );
 129                 assert.deepEqual( conf.get( [ 'foo', 'lorem' ] ), {
 130                         foo: 'bar',
 131                         lorem: 'ipsum'
 132                 }, 'Map.get returns multiple values correctly as an object' );
 133
 134                 assert.deepEqual( conf, new mw.Map( conf.values ), 'new mw.Map maps over existing values-bearing object' );
 135
 136                 assert.deepEqual( conf.get( [ 'foo', 'notExist' ] ), {
 137                         foo: 'bar',
 138                         notExist: null
 139                 }, 'Map.get return includes keys that were not found as null values' );
 140
 141                 // Interacting with globals and accessing the values object
 142                 assert.strictEqual( conf.get(), conf.values, 'Map.get returns the entire values object by reference (if called without arguments)' );
 143
 144                 conf.set( 'globalMapChecker', 'Hi' );
 145
 146                 assert.ok( ( 'globalMapChecker' in window ) === false, 'Map does not its store values in the window object by default' );
 147
 148                 globalConf = new mw.Map( true );
 149                 globalConf.set( 'anotherGlobalMapChecker', 'Hello' );
 150
 151                 assert.ok( 'anotherGlobalMapChecker' in window, 'global Map stores its values in the window object' );
 152
 153                 assert.equal( globalConf.get( 'anotherGlobalMapChecker' ), 'Hello', 'get value from global Map via get()' );
 154                 this.suppressWarnings();
 155                 assert.equal( window.anotherGlobalMapChecker, 'Hello', 'get value from global Map via window object' );
 156                 this.restoreWarnings();
 157
 158                 // Change value via global Map
 159                 globalConf.set( 'anotherGlobalMapChecker', 'Again' );
 160                 assert.equal( globalConf.get( 'anotherGlobalMapChecker' ), 'Again', 'Change in global Map reflected via get()' );
 161                 this.suppressWarnings();
 162                 assert.equal( window.anotherGlobalMapChecker, 'Again', 'Change in global Map reflected window object' );
 163                 this.restoreWarnings();
 164
 165                 // Change value via window object
 166                 this.suppressWarnings();
 167                 window.anotherGlobalMapChecker = 'World';
 168                 assert.equal( window.anotherGlobalMapChecker, 'World', 'Change in window object works' );
 169                 this.restoreWarnings();
 170                 assert.equal( globalConf.get( 'anotherGlobalMapChecker' ), 'Again', 'Change in window object not reflected in global Map' );
 171
 172                 // Whitelist this global variable for QUnit's 'noglobal' mode
 173                 if ( QUnit.config.noglobals ) {
 174                         QUnit.config.pollution.push( 'anotherGlobalMapChecker' );
 175                 }
 176         } );
 177
 178         QUnit.test( 'mw.config', 1, function ( assert ) {
 179                 assert.ok( mw.config instanceof mw.Map, 'mw.config instance of mw.Map' );
 180         } );
 181
 182         QUnit.test( 'mw.message & mw.messages', 100, function ( assert ) {
 183                 var goodbye, hello;
 184
 185                 // Convenience method for asserting the same result for multiple formats
 186                 function assertMultipleFormats( messageArguments, formats, expectedResult, assertMessage ) {
 187                         var format, i,
 188                                 len = formats.length;
 189
 190                         for ( i = 0; i < len; i++ ) {
 191                                 format = formats[ i ];
 192                                 assert.equal( mw.message.apply( null, messageArguments )[ format ](), expectedResult, assertMessage + ' when format is ' + format );
 193                         }
 194                 }
 195
 196                 assert.ok( mw.messages, 'messages defined' );
 197                 assert.ok( mw.messages instanceof mw.Map, 'mw.messages instance of mw.Map' );
 198                 assert.ok( mw.messages.set( 'hello', 'Hello <b>awesome</b> world' ), 'mw.messages.set: Register' );
 199
 200                 hello = mw.message( 'hello' );
 201
 202                 // https://phabricator.wikimedia.org/T46459
 203                 assert.equal( hello.format, 'text', 'Message property "format" defaults to "text"' );
 204
 205                 assert.strictEqual( hello.map, mw.messages, 'Message property "map" defaults to the global instance in mw.messages' );
 206                 assert.equal( hello.key, 'hello', 'Message property "key" (currect key)' );
 207                 assert.deepEqual( hello.parameters, [], 'Message property "parameters" defaults to an empty array' );
 208
 209                 // TODO
 210                 assert.ok( hello.params, 'Message prototype "params"' );
 211
 212                 hello.format = 'plain';
 213                 assert.equal( hello.toString(), 'Hello <b>awesome</b> world', 'Message.toString returns the message as a string with the current "format"' );
 214
 215                 assert.equal( hello.escaped(), 'Hello &lt;b&gt;awesome&lt;/b&gt; world', 'Message.escaped returns the escaped message' );
 216                 assert.equal( hello.format, 'escaped', 'Message.escaped correctly updated the "format" property' );
 217
 218                 assert.ok( mw.messages.set( 'multiple-curly-brace', '"{{SITENAME}}" is the home of {{int:other-message}}' ), 'mw.messages.set: Register' );
 219                 assertMultipleFormats( [ 'multiple-curly-brace' ], [ 'text', 'parse' ], '"' + siteName + '" is the home of Other Message', 'Curly brace format works correctly' );
 220                 assert.equal( mw.message( 'multiple-curly-brace' ).plain(), mw.messages.get( 'multiple-curly-brace' ), 'Plain format works correctly for curly brace message' );
 221                 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' );
 222
 223                 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' );
 224                 assertMultipleFormats( [ 'multiple-square-brackets-and-ampersand' ], [ 'plain', 'text' ], mw.messages.get( 'multiple-square-brackets-and-ampersand' ), 'Square bracket message is not processed' );
 225                 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' );
 226                 assert.htmlEqual( mw.message( 'multiple-square-brackets-and-ampersand' ).parse(), 'Visit the ' +
 227                         '<a title="Project:Community portal" href="/wiki/Project:Community_portal">community portal</a>' +
 228                         ' &amp; <a title="Project:Help desk" href="/wiki/Project:Help_desk">help desk</a>', 'Internal links work with parse' );
 229
 230                 assertMultipleFormats( [ 'mediawiki-test-version-entrypoints-index-php' ], [ 'plain', 'text', 'escaped' ], mw.messages.get( 'mediawiki-test-version-entrypoints-index-php' ), 'External link markup is unprocessed' );
 231                 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' );
 232
 233                 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' );
 234                 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' );
 235                 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' );
 236
 237                 hello.parse();
 238                 assert.equal( hello.format, 'parse', 'Message.parse correctly updated the "format" property' );
 239
 240                 hello.plain();
 241                 assert.equal( hello.format, 'plain', 'Message.plain correctly updated the "format" property' );
 242
 243                 hello.text();
 244                 assert.equal( hello.format, 'text', 'Message.text correctly updated the "format" property' );
 245
 246                 assert.strictEqual( hello.exists(), true, 'Message.exists returns true for existing messages' );
 247
 248                 goodbye = mw.message( 'goodbye' );
 249                 assert.strictEqual( goodbye.exists(), false, 'Message.exists returns false for nonexistent messages' );
 250
 251                 assertMultipleFormats( [ 'goodbye' ], [ 'plain', 'text' ], '<goodbye>', 'Message.toString returns <key> if key does not exist' );
 252                 // bug 30684
 253                 assertMultipleFormats( [ 'goodbye' ], [ 'parse', 'escaped' ], '&lt;goodbye&gt;', 'Message.toString returns properly escaped &lt;key&gt; if key does not exist' );
 254
 255                 assert.ok( mw.messages.set( 'plural-test-msg', 'There {{PLURAL:$1|is|are}} $1 {{PLURAL:$1|result|results}}' ), 'mw.messages.set: Register' );
 256                 assertMultipleFormats( [ 'plural-test-msg', 6 ], [ 'text', 'parse', 'escaped' ], 'There are 6 results', 'plural get resolved' );
 257                 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' );
 258
 259                 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' );
 260                 assertMultipleFormats( [ 'plural-test-msg-explicit', 12 ], [ 'text', 'parse', 'escaped' ], 'There are a dozen cars', 'explicit plural get resolved' );
 261
 262                 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' );
 263                 assertMultipleFormats( [ 'plural-test-msg-explicit-beginning', 1 ], [ 'text', 'parse', 'escaped' ], 'Basket has one egg', 'explicit plural given at beginning get resolved for singular' );
 264                 assertMultipleFormats( [ 'plural-test-msg-explicit-beginning', 4 ], [ 'text', 'parse', 'escaped' ], 'Basket has 4 eggs', 'explicit plural given at beginning get resolved for plural' );
 265                 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' );
 266                 assertMultipleFormats( [ 'plural-test-msg-explicit-beginning', 0 ], [ 'text', 'parse', 'escaped' ], 'Basket has no eggs', 'explicit plural given at beginning get resolved for 0' );
 267
 268                 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' );
 269
 270                 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' );
 271
 272                 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' );
 273
 274                 assert.ok( mw.messages.set( 'mediawiki-test-categorytree-collapse-bullet', '[<b>−</b>]' ), 'mw.messages.set: Register' );
 275                 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' );
 276
 277                 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' );
 278                 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' );
 279
 280                 assertMultipleFormats( [ 'gender-plural-msg', 'male', 1 ], [ 'text', 'parse', 'escaped' ], 'he is awesome', 'Gender and plural are resolved' );
 281                 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' );
 282
 283                 assert.equal( mw.message( 'grammar-msg' ).plain(), mw.messages.get( 'grammar-msg' ), 'Grammar is not resolved in plain mode' );
 284                 assertMultipleFormats( [ 'grammar-msg' ], [ 'text', 'parse' ], 'Przeszukaj ' + siteName, 'Grammar is resolved' );
 285                 assert.equal( mw.message( 'grammar-msg' ).escaped(), 'Przeszukaj ' + siteName, 'Grammar is resolved in escaped mode' );
 286
 287                 assertMultipleFormats( [ 'formatnum-msg', '987654321.654321' ], [ 'text', 'parse', 'escaped' ], '987,654,321.654', 'formatnum is resolved' );
 288                 assert.equal( mw.message( 'formatnum-msg' ).plain(), mw.messages.get( 'formatnum-msg' ), 'formatnum is not resolved in plain mode' );
 289
 290                 assertMultipleFormats( [ 'int-msg' ], [ 'text', 'parse', 'escaped' ], 'Some Other Message', 'int is resolved' );
 291                 assert.equal( mw.message( 'int-msg' ).plain(), mw.messages.get( 'int-msg' ), 'int is not resolved in plain mode' );
 292
 293                 assert.ok( mw.messages.set( 'mediawiki-italics-msg', '<i>Very</i> important' ), 'mw.messages.set: Register' );
 294                 assertMultipleFormats( [ 'mediawiki-italics-msg' ], [ 'plain', 'text', 'parse' ], mw.messages.get( 'mediawiki-italics-msg' ), 'Simple italics unchanged' );
 295                 assert.htmlEqual(
 296                         mw.message( 'mediawiki-italics-msg' ).escaped(),
 297                         '&lt;i&gt;Very&lt;/i&gt; important',
 298                         'Italics are escaped in escaped mode'
 299                 );
 300
 301                 assert.ok( mw.messages.set( 'mediawiki-italics-with-link', 'An <i>italicized [[link|wiki-link]]</i>' ), 'mw.messages.set: Register' );
 302                 assertMultipleFormats( [ 'mediawiki-italics-with-link' ], [ 'plain', 'text' ], mw.messages.get( 'mediawiki-italics-with-link' ), 'Italics with link unchanged' );
 303                 assert.htmlEqual(
 304                         mw.message( 'mediawiki-italics-with-link' ).escaped(),
 305                         'An &lt;i&gt;italicized [[link|wiki-link]]&lt;/i&gt;',
 306                         'Italics and link unchanged except for escaping in escaped mode'
 307                 );
 308                 assert.htmlEqual(
 309                         mw.message( 'mediawiki-italics-with-link' ).parse(),
 310                         'An <i>italicized <a title="link" href="' + mw.util.getUrl( 'link' ) + '">wiki-link</i>',
 311                         'Italics with link inside in parse mode'
 312                 );
 313
 314                 assert.ok( mw.messages.set( 'mediawiki-script-msg', '<script  >alert( "Who put this script here?" );</script>' ), 'mw.messages.set: Register' );
 315                 assertMultipleFormats( [ 'mediawiki-script-msg' ], [ 'plain', 'text' ], mw.messages.get( 'mediawiki-script-msg' ), 'Script unchanged' );
 316                 assert.htmlEqual(
 317                         mw.message( 'mediawiki-script-msg' ).escaped(),
 318                         '&lt;script  &gt;alert( "Who put this script here?" );&lt;/script&gt;',
 319                         'Script escaped when using escaped format'
 320                 );
 321                 assert.htmlEqual(
 322                         mw.message( 'mediawiki-script-msg' ).parse(),
 323                         '&lt;script  &gt;alert( "Who put this script here?" );&lt;/script&gt;',
 324                         'Script escaped when using parse format'
 325                 );
 326
 327         } );
 328
 329         QUnit.test( 'mw.msg', 14, function ( assert ) {
 330                 assert.ok( mw.messages.set( 'hello', 'Hello <b>awesome</b> world' ), 'mw.messages.set: Register' );
 331                 assert.equal( mw.msg( 'hello' ), 'Hello <b>awesome</b> world', 'Gets message with default options (existing message)' );
 332                 assert.equal( mw.msg( 'goodbye' ), '<goodbye>', 'Gets message with default options (nonexistent message)' );
 333
 334                 assert.ok( mw.messages.set( 'plural-item', 'Found $1 {{PLURAL:$1|item|items}}' ), 'mw.messages.set: Register' );
 335                 assert.equal( mw.msg( 'plural-item', 5 ), 'Found 5 items', 'Apply plural for count 5' );
 336                 assert.equal( mw.msg( 'plural-item', 0 ), 'Found 0 items', 'Apply plural for count 0' );
 337                 assert.equal( mw.msg( 'plural-item', 1 ), 'Found 1 item', 'Apply plural for count 1' );
 338
 339                 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' );
 340
 341                 assert.equal( mw.msg( 'gender-plural-msg', 'male', 1 ), 'he is awesome', 'Gender test for male, plural count 1' );
 342                 assert.equal( mw.msg( 'gender-plural-msg', 'female', '1' ), 'she is awesome', 'Gender test for female, plural count 1' );
 343                 assert.equal( mw.msg( 'gender-plural-msg', 'unknown', 10 ), 'they are awesome', 'Gender test for neutral, plural count 10' );
 344
 345                 assert.equal( mw.msg( 'grammar-msg' ), 'Przeszukaj ' + siteName, 'Grammar is resolved' );
 346
 347                 assert.equal( mw.msg( 'formatnum-msg', '987654321.654321' ), '987,654,321.654', 'formatnum is resolved' );
 348
 349                 assert.equal( mw.msg( 'int-msg' ), 'Some Other Message', 'int is resolved' );
 350         } );
 351
 352         /**
 353          * The sync style load test (for @import). This is, in a way, also an open bug for
 354          * ResourceLoader ("execute js after styles are loaded"), but browsers don't offer a
 355          * way to get a callback from when a stylesheet is loaded (that is, including any
 356          * `@import` rules inside). To work around this, we'll have a little time loop to check
 357          * if the styles apply.
 358          *
 359          * Note: This test originally used new Image() and onerror to get a callback
 360          * when the url is loaded, but that is fragile since it doesn't monitor the
 361          * same request as the css @import, and Safari 4 has issues with
 362          * onerror/onload not being fired at all in weird cases like this.
 363          */
 364         function assertStyleAsync( assert, $element, prop, val, fn ) {
 365                 var styleTestStart,
 366                         el = $element.get( 0 ),
 367                         styleTestTimeout = ( QUnit.config.testTimeout || 5000 ) - 200;
 368
 369                 function isCssImportApplied() {
 370                         // Trigger reflow, repaint, redraw, whatever (cross-browser)
 371                         var x = $element.css( 'height' );
 372                         x = el.innerHTML;
 373                         el.className = el.className;
 374                         x = document.documentElement.clientHeight;
 375
 376                         return $element.css( prop ) === val;
 377                 }
 378
 379                 function styleTestLoop() {
 380                         var styleTestSince = new Date().getTime() - styleTestStart;
 381                         // If it is passing or if we timed out, run the real test and stop the loop
 382                         if ( isCssImportApplied() || styleTestSince > styleTestTimeout ) {
 383                                 assert.equal( $element.css( prop ), val,
 384                                         'style "' + prop + ': ' + val + '" from url is applied (after ' + styleTestSince + 'ms)'
 385                                 );
 386
 387                                 if ( fn ) {
 388                                         fn();
 389                                 }
 390
 391                                 return;
 392                         }
 393                         // Otherwise, keep polling
 394                         setTimeout( styleTestLoop );
 395                 }
 396
 397                 // Start the loop
 398                 styleTestStart = new Date().getTime();
 399                 styleTestLoop();
 400         }
 401
 402         function urlStyleTest( selector, prop, val ) {
 403                 return QUnit.fixurl(
 404                         mw.config.get( 'wgScriptPath' ) +
 405                                 '/tests/qunit/data/styleTest.css.php?' +
 406                                 $.param( {
 407                                         selector: selector,
 408                                         prop: prop,
 409                                         val: val
 410                                 } )
 411                 );
 412         }
 413
 414         QUnit.test( 'mw.loader', 2, function ( assert ) {
 415                 var isAwesomeDone;
 416
 417                 mw.loader.testCallback = function () {
 418                         assert.strictEqual( isAwesomeDone, undefined, 'Implementing module is.awesome: isAwesomeDone should still be undefined' );
 419                         isAwesomeDone = true;
 420                 };
 421
 422                 mw.loader.implement( 'test.callback', [ QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/callMwLoaderTestCallback.js' ) ] );
 423
 424                 return mw.loader.using( 'test.callback', function () {
 425                         assert.strictEqual( isAwesomeDone, true, 'test.callback module should\'ve caused isAwesomeDone to be true' );
 426                         delete mw.loader.testCallback;
 427
 428                 }, function () {
 429                         assert.ok( false, 'Error callback fired while loader.using "test.callback" module' );
 430                 } );
 431         } );
 432
 433         QUnit.test( 'mw.loader with Object method as module name', 2, function ( assert ) {
 434                 var isAwesomeDone;
 435
 436                 mw.loader.testCallback = function () {
 437                         assert.strictEqual( isAwesomeDone, undefined, 'Implementing module hasOwnProperty: isAwesomeDone should still be undefined' );
 438                         isAwesomeDone = true;
 439                 };
 440
 441                 mw.loader.implement( 'hasOwnProperty', [ QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/callMwLoaderTestCallback.js' ) ], {}, {} );
 442
 443                 return mw.loader.using( 'hasOwnProperty', function () {
 444                         assert.strictEqual( isAwesomeDone, true, 'hasOwnProperty module should\'ve caused isAwesomeDone to be true' );
 445                         delete mw.loader.testCallback;
 446
 447                 }, function () {
 448                         assert.ok( false, 'Error callback fired while loader.using "hasOwnProperty" module' );
 449                 } );
 450         } );
 451
 452         QUnit.test( 'mw.loader.using( .. ) Promise', 2, function ( assert ) {
 453                 var isAwesomeDone;
 454
 455                 mw.loader.testCallback = function () {
 456                         assert.strictEqual( isAwesomeDone, undefined, 'Implementing module is.awesome: isAwesomeDone should still be undefined' );
 457                         isAwesomeDone = true;
 458                 };
 459
 460                 mw.loader.implement( 'test.promise', [ QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/callMwLoaderTestCallback.js' ) ] );
 461
 462                 return mw.loader.using( 'test.promise' )
 463                 .done( function () {
 464                         assert.strictEqual( isAwesomeDone, true, 'test.promise module should\'ve caused isAwesomeDone to be true' );
 465                         delete mw.loader.testCallback;
 466
 467                 } )
 468                 .fail( function () {
 469                         assert.ok( false, 'Error callback fired while loader.using "test.promise" module' );
 470                 } );
 471         } );
 472
 473         QUnit.test( 'mw.loader.implement( styles={ "css": [text, ..] } )', 2, function ( assert ) {
 474                 var $element = $( '<div class="mw-test-implement-a"></div>' ).appendTo( '#qunit-fixture' );
 475
 476                 assert.notEqual(
 477                         $element.css( 'float' ),
 478                         'right',
 479                         'style is clear'
 480                 );
 481
 482                 mw.loader.implement(
 483                         'test.implement.a',
 484                         function () {
 485                                 assert.equal(
 486                                         $element.css( 'float' ),
 487                                         'right',
 488                                         'style is applied'
 489                                 );
 490                         },
 491                         {
 492                                 all: '.mw-test-implement-a { float: right; }'
 493                         }
 494                 );
 495
 496                 return mw.loader.using( 'test.implement.a' );
 497         } );
 498
 499         QUnit.test( 'mw.loader.implement( styles={ "url": { <media>: [url, ..] } } )', 7, function ( assert ) {
 500                 var $element1 = $( '<div class="mw-test-implement-b1"></div>' ).appendTo( '#qunit-fixture' ),
 501                         $element2 = $( '<div class="mw-test-implement-b2"></div>' ).appendTo( '#qunit-fixture' ),
 502                         $element3 = $( '<div class="mw-test-implement-b3"></div>' ).appendTo( '#qunit-fixture' ),
 503                         done = assert.async();
 504
 505                 assert.notEqual(
 506                         $element1.css( 'text-align' ),
 507                         'center',
 508                         'style is clear'
 509                 );
 510                 assert.notEqual(
 511                         $element2.css( 'float' ),
 512                         'left',
 513                         'style is clear'
 514                 );
 515                 assert.notEqual(
 516                         $element3.css( 'text-align' ),
 517                         'right',
 518                         'style is clear'
 519                 );
 520
 521                 mw.loader.implement(
 522                         'test.implement.b',
 523                         function () {
 524                                 // Note: done() must only be called when the entire test is
 525                                 // complete. So, make sure that we don't start until *both*
 526                                 // assertStyleAsync calls have completed.
 527                                 var pending = 2;
 528                                 assertStyleAsync( assert, $element2, 'float', 'left', function () {
 529                                         assert.notEqual( $element1.css( 'text-align' ), 'center', 'print style is not applied' );
 530
 531                                         pending--;
 532                                         if ( pending === 0 ) {
 533                                                 done();
 534                                         }
 535                                 } );
 536                                 assertStyleAsync( assert, $element3, 'float', 'right', function () {
 537                                         assert.notEqual( $element1.css( 'text-align' ), 'center', 'print style is not applied' );
 538
 539                                         pending--;
 540                                         if ( pending === 0 ) {
 541                                                 done();
 542                                         }
 543                                 } );
 544                         },
 545                         {
 546                                 url: {
 547                                         print: [ urlStyleTest( '.mw-test-implement-b1', 'text-align', 'center' ) ],
 548                                         screen: [
 549                                                 // bug 40834: Make sure it actually works with more than 1 stylesheet reference
 550                                                 urlStyleTest( '.mw-test-implement-b2', 'float', 'left' ),
 551                                                 urlStyleTest( '.mw-test-implement-b3', 'float', 'right' )
 552                                         ]
 553                                 }
 554                         }
 555                 );
 556
 557                 mw.loader.load( 'test.implement.b' );
 558         } );
 559
 560         // Backwards compatibility
 561         QUnit.test( 'mw.loader.implement( styles={ <media>: text } ) (back-compat)', 2, function ( assert ) {
 562                 var $element = $( '<div class="mw-test-implement-c"></div>' ).appendTo( '#qunit-fixture' );
 563
 564                 assert.notEqual(
 565                         $element.css( 'float' ),
 566                         'right',
 567                         'style is clear'
 568                 );
 569
 570                 mw.loader.implement(
 571                         'test.implement.c',
 572                         function () {
 573                                 assert.equal(
 574                                         $element.css( 'float' ),
 575                                         'right',
 576                                         'style is applied'
 577                                 );
 578                         },
 579                         {
 580                                 all: '.mw-test-implement-c { float: right; }'
 581                         }
 582                 );
 583
 584                 return mw.loader.using( 'test.implement.c' );
 585         } );
 586
 587         // Backwards compatibility
 588         QUnit.test( 'mw.loader.implement( styles={ <media>: [url, ..] } ) (back-compat)', 4, function ( assert ) {
 589                 var $element = $( '<div class="mw-test-implement-d"></div>' ).appendTo( '#qunit-fixture' ),
 590                         $element2 = $( '<div class="mw-test-implement-d2"></div>' ).appendTo( '#qunit-fixture' ),
 591                         done = assert.async();
 592
 593                 assert.notEqual(
 594                         $element.css( 'float' ),
 595                         'right',
 596                         'style is clear'
 597                 );
 598                 assert.notEqual(
 599                         $element2.css( 'text-align' ),
 600                         'center',
 601                         'style is clear'
 602                 );
 603
 604                 mw.loader.implement(
 605                         'test.implement.d',
 606                         function () {
 607                                 assertStyleAsync( assert, $element, 'float', 'right', function () {
 608                                         assert.notEqual( $element2.css( 'text-align' ), 'center', 'print style is not applied (bug 40500)' );
 609                                         done();
 610                                 } );
 611                         },
 612                         {
 613                                 all: [ urlStyleTest( '.mw-test-implement-d', 'float', 'right' ) ],
 614                                 print: [ urlStyleTest( '.mw-test-implement-d2', 'text-align', 'center' ) ]
 615                         }
 616                 );
 617
 618                 mw.loader.load( 'test.implement.d' );
 619         } );
 620
 621         // @import (bug 31676)
 622         QUnit.test( 'mw.loader.implement( styles has @import )', 7, function ( assert ) {
 623                 var isJsExecuted, $element,
 624                         done = assert.async();
 625
 626                 mw.loader.implement(
 627                         'test.implement.import',
 628                         function () {
 629                                 assert.strictEqual( isJsExecuted, undefined, 'script not executed multiple times' );
 630                                 isJsExecuted = true;
 631
 632                                 assert.equal( mw.loader.getState( 'test.implement.import' ), 'executing', 'module state during implement() script execution' );
 633
 634                                 $element = $( '<div class="mw-test-implement-import">Foo bar</div>' ).appendTo( '#qunit-fixture' );
 635
 636                                 assert.equal( mw.msg( 'test-foobar' ), 'Hello Foobar, $1!', 'messages load before script execution' );
 637
 638                                 assertStyleAsync( assert, $element, 'float', 'right', function () {
 639                                         assert.equal( $element.css( 'text-align' ), 'center',
 640                                                 'CSS styles after the @import rule are working'
 641                                         );
 642
 643                                         done();
 644                                 } );
 645                         },
 646                         {
 647                                 css: [
 648                                         '@import url(\''
 649                                                 + urlStyleTest( '.mw-test-implement-import', 'float', 'right' )
 650                                                 + '\');\n'
 651                                                 + '.mw-test-implement-import { text-align: center; }'
 652                                 ]
 653                         },
 654                         {
 655                                 'test-foobar': 'Hello Foobar, $1!'
 656                         }
 657                 );
 658
 659                 mw.loader.using( 'test.implement.import' ).always( function () {
 660                         assert.strictEqual( isJsExecuted, true, 'script executed' );
 661                         assert.equal( mw.loader.getState( 'test.implement.import' ), 'ready', 'module state after script execution' );
 662                 } );
 663         } );
 664
 665         QUnit.test( 'mw.loader.implement( dependency with styles )', 4, function ( assert ) {
 666                 var $element = $( '<div class="mw-test-implement-e"></div>' ).appendTo( '#qunit-fixture' ),
 667                         $element2 = $( '<div class="mw-test-implement-e2"></div>' ).appendTo( '#qunit-fixture' );
 668
 669                 assert.notEqual(
 670                         $element.css( 'float' ),
 671                         'right',
 672                         'style is clear'
 673                 );
 674                 assert.notEqual(
 675                         $element2.css( 'float' ),
 676                         'left',
 677                         'style is clear'
 678                 );
 679
 680                 mw.loader.register( [
 681                         [ 'test.implement.e', '0', [ 'test.implement.e2' ] ],
 682                         [ 'test.implement.e2', '0' ]
 683                 ] );
 684
 685                 mw.loader.implement(
 686                         'test.implement.e',
 687                         function () {
 688                                 assert.equal(
 689                                         $element.css( 'float' ),
 690                                         'right',
 691                                         'Depending module\'s style is applied'
 692                                 );
 693                         },
 694                         {
 695                                 all: '.mw-test-implement-e { float: right; }'
 696                         }
 697                 );
 698
 699                 mw.loader.implement(
 700                         'test.implement.e2',
 701                         function () {
 702                                 assert.equal(
 703                                         $element2.css( 'float' ),
 704                                         'left',
 705                                         'Dependency\'s style is applied'
 706                                 );
 707                         },
 708                         {
 709                                 all: '.mw-test-implement-e2 { float: left; }'
 710                         }
 711                 );
 712
 713                 return mw.loader.using( 'test.implement.e' );
 714         } );
 715
 716         QUnit.test( 'mw.loader.implement( only scripts )', 1, function ( assert ) {
 717                 mw.loader.implement( 'test.onlyscripts', function () {} );
 718                 assert.strictEqual( mw.loader.getState( 'test.onlyscripts' ), 'ready' );
 719         } );
 720
 721         QUnit.test( 'mw.loader.implement( only messages )', 2, function ( assert ) {
 722                 assert.assertFalse( mw.messages.exists( 'bug_29107' ), 'Verify that the test message doesn\'t exist yet' );
 723
 724                 // jscs: disable requireCamelCaseOrUpperCaseIdentifiers
 725                 mw.loader.implement( 'test.implement.msgs', [], {}, { bug_29107: 'loaded' } );
 726                 // jscs: enable requireCamelCaseOrUpperCaseIdentifiers
 727
 728                 return mw.loader.using( 'test.implement.msgs', function () {
 729                         assert.ok( mw.messages.exists( 'bug_29107' ), 'Bug 29107: messages-only module should implement ok' );
 730                 }, function () {
 731                         assert.ok( false, 'Error callback fired while implementing "test.implement.msgs" module' );
 732                 } );
 733         } );
 734
 735         QUnit.test( 'mw.loader.implement( empty )', 1, function ( assert ) {
 736                 mw.loader.implement( 'test.empty' );
 737                 assert.strictEqual( mw.loader.getState( 'test.empty' ), 'ready' );
 738         } );
 739
 740         QUnit.test( 'mw.loader with broken indirect dependency', 4, function ( assert ) {
 741                 // don't emit an error event
 742                 this.sandbox.stub( mw, 'track' );
 743
 744                 mw.loader.register( [
 745                         [ 'test.module1', '0' ],
 746                         [ 'test.module2', '0', [ 'test.module1' ] ],
 747                         [ 'test.module3', '0', [ 'test.module2' ] ]
 748                 ] );
 749                 mw.loader.implement( 'test.module1', function () {
 750                         throw new Error( 'expected' );
 751                 }, {}, {} );
 752                 assert.strictEqual( mw.loader.getState( 'test.module1' ), 'error', 'Expected "error" state for test.module1' );
 753                 assert.strictEqual( mw.loader.getState( 'test.module2' ), 'error', 'Expected "error" state for test.module2' );
 754                 assert.strictEqual( mw.loader.getState( 'test.module3' ), 'error', 'Expected "error" state for test.module3' );
 755
 756                 assert.strictEqual( mw.track.callCount, 1 );
 757         } );
 758
 759         QUnit.test( 'mw.loader with circular dependency', 1, function ( assert ) {
 760                 mw.loader.register( [
 761                         [ 'test.circle1', '0', [ 'test.circle2' ] ],
 762                         [ 'test.circle2', '0', [ 'test.circle3' ] ],
 763                         [ 'test.circle3', '0', [ 'test.circle1' ] ]
 764                 ] );
 765                 assert.throws( function () {
 766                         mw.loader.using( 'test.circle3' );
 767                 }, /Circular/, 'Detect circular dependency' );
 768         } );
 769
 770         QUnit.test( 'mw.loader out-of-order implementation', 9, function ( assert ) {
 771                 mw.loader.register( [
 772                         [ 'test.module4', '0' ],
 773                         [ 'test.module5', '0', [ 'test.module4' ] ],
 774                         [ 'test.module6', '0', [ 'test.module5' ] ]
 775                 ] );
 776                 mw.loader.implement( 'test.module4', function () {} );
 777                 assert.strictEqual( mw.loader.getState( 'test.module4' ), 'ready', 'Expected "ready" state for test.module4' );
 778                 assert.strictEqual( mw.loader.getState( 'test.module5' ), 'registered', 'Expected "registered" state for test.module5' );
 779                 assert.strictEqual( mw.loader.getState( 'test.module6' ), 'registered', 'Expected "registered" state for test.module6' );
 780                 mw.loader.implement( 'test.module6', function () {} );
 781                 assert.strictEqual( mw.loader.getState( 'test.module4' ), 'ready', 'Expected "ready" state for test.module4' );
 782                 assert.strictEqual( mw.loader.getState( 'test.module5' ), 'registered', 'Expected "registered" state for test.module5' );
 783                 assert.strictEqual( mw.loader.getState( 'test.module6' ), 'loaded', 'Expected "loaded" state for test.module6' );
 784                 mw.loader.implement( 'test.module5', function () {} );
 785                 assert.strictEqual( mw.loader.getState( 'test.module4' ), 'ready', 'Expected "ready" state for test.module4' );
 786                 assert.strictEqual( mw.loader.getState( 'test.module5' ), 'ready', 'Expected "ready" state for test.module5' );
 787                 assert.strictEqual( mw.loader.getState( 'test.module6' ), 'ready', 'Expected "ready" state for test.module6' );
 788         } );
 789
 790         QUnit.test( 'mw.loader missing dependency', 13, function ( assert ) {
 791                 mw.loader.register( [
 792                         [ 'test.module7', '0' ],
 793                         [ 'test.module8', '0', [ 'test.module7' ] ],
 794                         [ 'test.module9', '0', [ 'test.module8' ] ]
 795                 ] );
 796                 mw.loader.implement( 'test.module8', function () {} );
 797                 assert.strictEqual( mw.loader.getState( 'test.module7' ), 'registered', 'Expected "registered" state for test.module7' );
 798                 assert.strictEqual( mw.loader.getState( 'test.module8' ), 'loaded', 'Expected "loaded" state for test.module8' );
 799                 assert.strictEqual( mw.loader.getState( 'test.module9' ), 'registered', 'Expected "registered" state for test.module9' );
 800                 mw.loader.state( 'test.module7', 'missing' );
 801                 assert.strictEqual( mw.loader.getState( 'test.module7' ), 'missing', 'Expected "missing" state for test.module7' );
 802                 assert.strictEqual( mw.loader.getState( 'test.module8' ), 'error', 'Expected "error" state for test.module8' );
 803                 assert.strictEqual( mw.loader.getState( 'test.module9' ), 'error', 'Expected "error" state for test.module9' );
 804                 mw.loader.implement( 'test.module9', function () {} );
 805                 assert.strictEqual( mw.loader.getState( 'test.module7' ), 'missing', 'Expected "missing" state for test.module7' );
 806                 assert.strictEqual( mw.loader.getState( 'test.module8' ), 'error', 'Expected "error" state for test.module8' );
 807                 assert.strictEqual( mw.loader.getState( 'test.module9' ), 'error', 'Expected "error" state for test.module9' );
 808                 mw.loader.using(
 809                         [ 'test.module7' ],
 810                         function () {
 811                                 assert.ok( false, 'Success fired despite missing dependency' );
 812                                 assert.ok( true, 'QUnit expected() count dummy' );
 813                         },
 814                         function ( e, dependencies ) {
 815                                 assert.strictEqual( $.isArray( dependencies ), true, 'Expected array of dependencies' );
 816                                 assert.deepEqual( dependencies, [ 'test.module7' ], 'Error callback called with module test.module7' );
 817                         }
 818                 );
 819                 mw.loader.using(
 820                         [ 'test.module9' ],
 821                         function () {
 822                                 assert.ok( false, 'Success fired despite missing dependency' );
 823                                 assert.ok( true, 'QUnit expected() count dummy' );
 824                         },
 825                         function ( e, dependencies ) {
 826                                 assert.strictEqual( $.isArray( dependencies ), true, 'Expected array of dependencies' );
 827                                 dependencies.sort();
 828                                 assert.deepEqual(
 829                                         dependencies,
 830                                         [ 'test.module7', 'test.module8', 'test.module9' ],
 831                                         'Error callback called with all three modules as dependencies'
 832                                 );
 833                         }
 834                 );
 835         } );
 836
 837         QUnit.test( 'mw.loader dependency handling', 5, function ( assert ) {
 838                 var done = assert.async();
 839                 mw.loader.register( [
 840                         // [module, version, dependencies, group, source]
 841                         [ 'testMissing', '1', [], null, 'testloader' ],
 842                         [ 'testUsesMissing', '1', [ 'testMissing' ], null, 'testloader' ],
 843                         [ 'testUsesNestedMissing', '1', [ 'testUsesMissing' ], null, 'testloader' ]
 844                 ] );
 845
 846                 function verifyModuleStates() {
 847                         assert.equal( mw.loader.getState( 'testMissing' ), 'missing', 'Module not known to server must have state "missing"' );
 848                         assert.equal( mw.loader.getState( 'testUsesMissing' ), 'error', 'Module with missing dependency must have state "error"' );
 849                         assert.equal( mw.loader.getState( 'testUsesNestedMissing' ), 'error', 'Module with indirect missing dependency must have state "error"' );
 850                 }
 851
 852                 mw.loader.using( [ 'testUsesNestedMissing' ],
 853                         function () {
 854                                 assert.ok( false, 'Error handler should be invoked.' );
 855                                 assert.ok( true ); // Dummy to reach QUnit expect()
 856
 857                                 verifyModuleStates();
 858
 859                                 done();
 860                         },
 861                         function ( e, badmodules ) {
 862                                 assert.ok( true, 'Error handler should be invoked.' );
 863                                 // As soon as server spits out state('testMissing', 'missing');
 864                                 // it will bubble up and trigger the error callback.
 865                                 // Therefor the badmodules array is not testUsesMissing or testUsesNestedMissing.
 866                                 assert.deepEqual( badmodules, [ 'testMissing' ], 'Bad modules as expected.' );
 867
 868                                 verifyModuleStates();
 869
 870                                 done();
 871                         }
 872                 );
 873         } );
 874
 875         QUnit.test( 'mw.loader skin-function handling', 5, function ( assert ) {
 876                 mw.loader.register( [
 877                         // [module, version, dependencies, group, source, skip]
 878                         [ 'testSkipped', '1', [], null, 'testloader', 'return true;' ],
 879                         [ 'testNotSkipped', '1', [], null, 'testloader', 'return false;' ],
 880                         [ 'testUsesSkippable', '1', [ 'testSkipped', 'testNotSkipped' ], null, 'testloader' ]
 881                 ] );
 882
 883                 function verifyModuleStates() {
 884                         assert.equal( mw.loader.getState( 'testSkipped' ), 'ready', 'Module is ready when skipped' );
 885                         assert.equal( mw.loader.getState( 'testNotSkipped' ), 'ready', 'Module is ready when not skipped but loaded' );
 886                         assert.equal( mw.loader.getState( 'testUsesSkippable' ), 'ready', 'Module is ready when skippable dependencies are ready' );
 887                 }
 888
 889                 return mw.loader.using( [ 'testUsesSkippable' ],
 890                         function () {
 891                                 assert.ok( true, 'Success handler should be invoked.' );
 892                                 assert.ok( true ); // Dummy to match error handler and reach QUnit expect()
 893
 894                                 verifyModuleStates();
 895                         },
 896                         function ( e, badmodules ) {
 897                                 assert.ok( false, 'Error handler should not be invoked.' );
 898                                 assert.deepEqual( badmodules, [], 'Bad modules as expected.' );
 899
 900                                 verifyModuleStates();
 901                         }
 902                 );
 903         } );
 904
 905         QUnit.asyncTest( 'mw.loader( "//protocol-relative" ) (bug 30825)', 2, function ( assert ) {
 906                 // This bug was actually already fixed in 1.18 and later when discovered in 1.17.
 907                 // Test is for regressions!
 908
 909                 // Forge a URL to the test callback script
 910                 var target = QUnit.fixurl(
 911                         mw.config.get( 'wgServer' ) + mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/qunitOkCall.js'
 912                 );
 913
 914                 // Confirm that mw.loader.load() works with protocol-relative URLs
 915                 target = target.replace( /https?:/, '' );
 916
 917                 assert.equal( target.slice( 0, 2 ), '//',
 918                         'URL must be relative to test relative URLs!'
 919                 );
 920
 921                 // Async!
 922                 // The target calls QUnit.start
 923                 mw.loader.load( target );
 924         } );
 925
 926         QUnit.asyncTest( 'mw.loader( "/absolute-path" )', 2, function ( assert ) {
 927                 // Forge a URL to the test callback script
 928                 var target = QUnit.fixurl(
 929                         mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/qunitOkCall.js'
 930                 );
 931
 932                 // Confirm that mw.loader.load() works with absolute-paths (relative to current hostname)
 933                 assert.equal( target.slice( 0, 1 ), '/', 'URL is relative to document root' );
 934
 935                 // Async!
 936                 // The target calls QUnit.start
 937                 mw.loader.load( target );
 938         } );
 939
 940         QUnit.test( 'mw.loader() executing race (T112232)', 2, function ( assert ) {
 941                 var done = false;
 942
 943                 // The red herring schedules its CSS buffer first. In T112232, a bug in the
 944                 // state machine would cause the job for testRaceLoadMe to run with an earlier job.
 945                 mw.loader.implement(
 946                         'testRaceRedHerring',
 947                         function () {},
 948                         { css: [ '.mw-testRaceRedHerring {}' ] }
 949                 );
 950                 mw.loader.implement(
 951                         'testRaceLoadMe',
 952                         function () {
 953                                 done = true;
 954                         },
 955                         { css: [ '.mw-testRaceLoadMe { float: left; }' ] }
 956                 );
 957
 958                 mw.loader.load( [ 'testRaceRedHerring', 'testRaceLoadMe' ] );
 959                 return mw.loader.using( 'testRaceLoadMe', function () {
 960                         assert.strictEqual( done, true, 'script ran' );
 961                         assert.strictEqual( mw.loader.getState( 'testRaceLoadMe' ), 'ready', 'state' );
 962                 } );
 963         } );
 964
 965         QUnit.test( 'mw.hook', 13, function ( assert ) {
 966                 var hook, add, fire, chars, callback;
 967
 968                 mw.hook( 'test.hook.unfired' ).add( function () {
 969                         assert.ok( false, 'Unfired hook' );
 970                 } );
 971
 972                 mw.hook( 'test.hook.basic' ).add( function () {
 973                         assert.ok( true, 'Basic callback' );
 974                 } );
 975                 mw.hook( 'test.hook.basic' ).fire();
 976
 977                 mw.hook( 'hasOwnProperty' ).add( function () {
 978                         assert.ok( true, 'hook with name of predefined method' );
 979                 } );
 980                 mw.hook( 'hasOwnProperty' ).fire();
 981
 982                 mw.hook( 'test.hook.data' ).add( function ( data1, data2 ) {
 983                         assert.equal( data1, 'example', 'Fire with data (string param)' );
 984                         assert.deepEqual( data2, [ 'two' ], 'Fire with data (array param)' );
 985                 } );
 986                 mw.hook( 'test.hook.data' ).fire( 'example', [ 'two' ] );
 987
 988                 hook = mw.hook( 'test.hook.chainable' );
 989                 assert.strictEqual( hook.add(), hook, 'hook.add is chainable' );
 990                 assert.strictEqual( hook.remove(), hook, 'hook.remove is chainable' );
 991                 assert.strictEqual( hook.fire(), hook, 'hook.fire is chainable' );
 992
 993                 hook = mw.hook( 'test.hook.detach' );
 994                 add = hook.add;
 995                 fire = hook.fire;
 996                 add( function ( x, y ) {
 997                         assert.deepEqual( [ x, y ], [ 'x', 'y' ], 'Detached (contextless) with data' );
 998                 } );
 999                 fire( 'x', 'y' );
1000
1001                 mw.hook( 'test.hook.fireBefore' ).fire().add( function () {
1002                         assert.ok( true, 'Invoke handler right away if it was fired before' );
1003                 } );
1004
1005                 mw.hook( 'test.hook.fireTwiceBefore' ).fire().fire().add( function () {
1006                         assert.ok( true, 'Invoke handler right away if it was fired before (only last one)' );
1007                 } );
1008
1009                 chars = [];
1010
1011                 mw.hook( 'test.hook.many' )
1012                         .add( function ( chr ) {
1013                                 chars.push( chr );
1014                         } )
1015                         .fire( 'x' ).fire( 'y' ).fire( 'z' )
1016                         .add( function ( chr ) {
1017                                 assert.equal( chr, 'z', 'Adding callback later invokes right away with last data' );
1018                         } );
1019
1020                 assert.deepEqual( chars, [ 'x', 'y', 'z' ], 'Multiple callbacks with multiple fires' );
1021
1022                 chars = [];
1023                 callback = function ( chr ) {
1024                         chars.push( chr );
1025                 };
1026
1027                 mw.hook( 'test.hook.variadic' )
1028                         .add(
1029                                 callback,
1030                                 callback,
1031                                 function ( chr ) {
1032                                         chars.push( chr );
1033                                 },
1034                                 callback
1035                         )
1036                         .fire( 'x' )
1037                         .remove(
1038                                 function () {
1039                                         'not-added';
1040                                 },
1041                                 callback
1042                         )
1043                         .fire( 'y' )
1044                         .remove( callback )
1045                         .fire( 'z' );
1046
1047                 assert.deepEqual(
1048                         chars,
1049                         [ 'x', 'x', 'x', 'x', 'y', 'z' ],
1050                         '"add" and "remove" support variadic arguments. ' +
1051                                 '"add" does not filter unique. ' +
1052                                 '"remove" removes all equal by reference. ' +
1053                                 '"remove" is silent if the function is not found'
1054                 );
1055         } );
1056
1057         QUnit.test( 'mw.loader require()', 6, function ( assert ) {
1058                 mw.loader.register( [
1059                         [ 'test.require1', '0' ],
1060                         [ 'test.require2', '0' ],
1061                         [ 'test.require3', '0' ],
1062                         [ 'test.require4', '0', [ 'test.require3' ] ]
1063                 ] );
1064                 mw.loader.implement( 'test.require1', function () {} );
1065                 mw.loader.implement( 'test.require2', function ( $, jQuery, require, module ) {
1066                         module.exports = 1;
1067                 } );
1068                 mw.loader.implement( 'test.require3', function ( $, jQuery, require, module ) {
1069                         module.exports = function () {
1070                                 return 'hello world';
1071                         };
1072                 } );
1073                 mw.loader.implement( 'test.require4', function ( $, jQuery, require, module ) {
1074                         var other = require( 'test.require3' );
1075                         module.exports = {
1076                                 pizza: function () {
1077                                         return other();
1078                                 }
1079                         };
1080                 } );
1081                 return mw.loader.using( [ 'test.require1', 'test.require2', 'test.require3', 'test.require4' ] )
1082                 .then( function ( require ) {
1083                         var module1, module2, module3, module4;
1084
1085                         module1 = require( 'test.require1' );
1086                         module2 = require( 'test.require2' );
1087                         module3 = require( 'test.require3' );
1088                         module4 = require( 'test.require4' );
1089
1090                         assert.strictEqual( typeof module1, 'object', 'export of module with no export' );
1091                         assert.strictEqual( module2, 1, 'export a number' );
1092                         assert.strictEqual( module3(), 'hello world', 'export a function' );
1093                         assert.strictEqual( typeof module4.pizza, 'function', 'export an object' );
1094                         assert.strictEqual( module4.pizza(), 'hello world', 'module can require other modules' );
1095
1096                         assert.throws( function () {
1097                                 require( '_badmodule' );
1098                         }, /is not loaded/, 'Requesting non-existent modules throws error.' );
1099                 } );
1100         } );
1101
1102         QUnit.test( 'mw.loader require() in debug mode', 1, function ( assert ) {
1103                 var path = mw.config.get( 'wgScriptPath' );
1104                 mw.loader.register( [
1105                         [ 'test.require.define', '0' ],
1106                         [ 'test.require.callback', '0', [ 'test.require.define' ] ]
1107                 ] );
1108                 mw.loader.implement( 'test.require.callback', [ QUnit.fixurl( path + '/tests/qunit/data/requireCallMwLoaderTestCallback.js' ) ] );
1109                 mw.loader.implement( 'test.require.define', [ QUnit.fixurl( path + '/tests/qunit/data/defineCallMwLoaderTestCallback.js' ) ] );
1110
1111                 return mw.loader.using( 'test.require.callback' ).then( function ( require ) {
1112                         var exported = require( 'test.require.callback' );
1113                         assert.strictEqual( exported, 'Require worked.Define worked.',
1114                                 'module.exports worked in debug mode' );
1115                 }, function () {
1116                         assert.ok( false, 'Error callback fired while loader.using "test.require.callback" module' );
1117                 } );
1118         } );
1119
1120 }( mediaWiki, jQuery ) );