tests/qunit/data/testrunner.js

   1 /* global sinon */
   2 ( function ( $, mw, QUnit ) {
   3         'use strict';
   4
   5         var addons;
   6
   7         /**
   8          * Add bogus to url to prevent IE crazy caching
   9          *
  10          * @param {string} value a relative path (eg. 'data/foo.js'
  11          * or 'data/test.php?foo=bar').
  12          * @return {string} Such as 'data/foo.js?131031765087663960'
  13          */
  14         QUnit.fixurl = function ( value ) {
  15                 return value + ( /\?/.test( value ) ? '&' : '?' )
  16                         + String( new Date().getTime() )
  17                         + String( parseInt( Math.random() * 100000, 10 ) );
  18         };
  19
  20         /**
  21          * Configuration
  22          */
  23
  24         // For each test() that is asynchronous, allow this time to pass before
  25         // killing the test and assuming timeout failure.
  26         QUnit.config.testTimeout = 60 * 1000;
  27
  28         // Reduce default animation duration from 400ms to 0ms for unit tests
  29         // eslint-disable-next-line no-underscore-dangle
  30         $.fx.speeds._default = 0;
  31
  32         // Add a checkbox to QUnit header to toggle MediaWiki ResourceLoader debug mode.
  33         QUnit.config.urlConfig.push( {
  34                 id: 'debug',
  35                 label: 'Enable ResourceLoaderDebug',
  36                 tooltip: 'Enable debug mode in ResourceLoader',
  37                 value: 'true'
  38         } );
  39
  40         /**
  41          * SinonJS
  42          *
  43          * Glue code for nicer integration with QUnit setup/teardown
  44          * Inspired by http://sinonjs.org/releases/sinon-qunit-1.0.0.js
  45          * Fixes:
  46          * - Work properly with asynchronous QUnit by using module setup/teardown
  47          *   instead of synchronously wrapping QUnit.test.
  48          */
  49         sinon.assert.fail = function ( msg ) {
  50                 QUnit.assert.ok( false, msg );
  51         };
  52         sinon.assert.pass = function ( msg ) {
  53                 QUnit.assert.ok( true, msg );
  54         };
  55         sinon.config = {
  56                 injectIntoThis: true,
  57                 injectInto: null,
  58                 properties: [ 'spy', 'stub', 'mock', 'sandbox' ],
  59                 // Don't fake timers by default
  60                 useFakeTimers: false,
  61                 useFakeServer: false
  62         };
  63         ( function () {
  64                 var orgModule = QUnit.module;
  65
  66                 QUnit.module = function ( name, localEnv ) {
  67                         localEnv = localEnv || {};
  68                         orgModule( name, {
  69                                 setup: function () {
  70                                         var config = sinon.getConfig( sinon.config );
  71                                         config.injectInto = this;
  72                                         sinon.sandbox.create( config );
  73
  74                                         if ( localEnv.setup ) {
  75                                                 localEnv.setup.call( this );
  76                                         }
  77                                 },
  78                                 teardown: function () {
  79                                         if ( localEnv.teardown ) {
  80                                                 localEnv.teardown.call( this );
  81                                         }
  82
  83                                         this.sandbox.verifyAndRestore();
  84                                 }
  85                         } );
  86                 };
  87         }() );
  88
  89         // Extend QUnit.module to provide a fixture element.
  90         ( function () {
  91                 var orgModule = QUnit.module;
  92
  93                 QUnit.module = function ( name, localEnv ) {
  94                         var fixture;
  95                         localEnv = localEnv || {};
  96                         orgModule( name, {
  97                                 setup: function () {
  98                                         fixture = document.createElement( 'div' );
  99                                         fixture.id = 'qunit-fixture';
 100                                         document.body.appendChild( fixture );
 101
 102                                         if ( localEnv.setup ) {
 103                                                 localEnv.setup.call( this );
 104                                         }
 105                                 },
 106                                 teardown: function () {
 107                                         if ( localEnv.teardown ) {
 108                                                 localEnv.teardown.call( this );
 109                                         }
 110
 111                                         fixture.parentNode.removeChild( fixture );
 112                                 }
 113                         } );
 114                 };
 115         }() );
 116
 117         /**
 118          * Reset mw.config and others to a fresh copy of the live config for each test(),
 119          * and restore it back to the live one afterwards.
 120          *
 121          * @param {Object} [localEnv]
 122          * @example (see test suite at the bottom of this file)
 123          * </code>
 124          */
 125         QUnit.newMwEnvironment = ( function () {
 126                 var warn, error, liveConfig, liveMessages,
 127                         MwMap = mw.config.constructor, // internal use only
 128                         ajaxRequests = [];
 129
 130                 liveConfig = mw.config;
 131                 liveMessages = mw.messages;
 132
 133                 function suppressWarnings() {
 134                         if ( warn === undefined ) {
 135                                 warn = mw.log.warn;
 136                                 error = mw.log.error;
 137                                 mw.log.warn = mw.log.error = $.noop;
 138                         }
 139                 }
 140
 141                 function restoreWarnings() {
 142                         // Guard against calls not balanced with suppressWarnings()
 143                         if ( warn !== undefined ) {
 144                                 mw.log.warn = warn;
 145                                 mw.log.error = error;
 146                                 warn = error = undefined;
 147                         }
 148                 }
 149
 150                 function freshConfigCopy( custom ) {
 151                         var copy;
 152                         // Tests should mock all factors that directly influence the tested code.
 153                         // For backwards compatibility though we set mw.config to a fresh copy of the live
 154                         // config. This way any modifications made to mw.config during the test will not
 155                         // affect other tests, nor the global scope outside the test runner.
 156                         // This is a shallow copy, since overriding an array or object value via "custom"
 157                         // should replace it. Setting a config property means you override it, not extend it.
 158                         // NOTE: It is important that we suppress warnings because extend() will also access
 159                         // deprecated properties and trigger deprecation warnings from mw.log#deprecate.
 160                         suppressWarnings();
 161                         copy = $.extend( {}, liveConfig.get(), custom );
 162                         restoreWarnings();
 163
 164                         return copy;
 165                 }
 166
 167                 function freshMessagesCopy( custom ) {
 168                         return $.extend( /* deep */true, {}, liveMessages.get(), custom );
 169                 }
 170
 171                 /**
 172                  * @param {jQuery.Event} event
 173                  * @param {jqXHR} jqXHR
 174                  * @param {Object} ajaxOptions
 175                  */
 176                 function trackAjax( event, jqXHR, ajaxOptions ) {
 177                         ajaxRequests.push( { xhr: jqXHR, options: ajaxOptions } );
 178                 }
 179
 180                 return function ( localEnv ) {
 181                         localEnv = $.extend( {
 182                                 // QUnit
 183                                 setup: $.noop,
 184                                 teardown: $.noop,
 185                                 // MediaWiki
 186                                 config: {},
 187                                 messages: {}
 188                         }, localEnv );
 189
 190                         return {
 191                                 setup: function () {
 192
 193                                         // Greetings, mock environment!
 194                                         mw.config = new MwMap();
 195                                         mw.config.set( freshConfigCopy( localEnv.config ) );
 196                                         mw.messages = new MwMap();
 197                                         mw.messages.set( freshMessagesCopy( localEnv.messages ) );
 198                                         // Update reference to mw.messages
 199                                         mw.jqueryMsg.setParserDefaults( {
 200                                                 messages: mw.messages
 201                                         } );
 202
 203                                         this.suppressWarnings = suppressWarnings;
 204                                         this.restoreWarnings = restoreWarnings;
 205
 206                                         // Start tracking ajax requests
 207                                         $( document ).on( 'ajaxSend', trackAjax );
 208
 209                                         localEnv.setup.call( this );
 210                                 },
 211
 212                                 teardown: function () {
 213                                         var timers, pending, $activeLen;
 214
 215                                         localEnv.teardown.call( this );
 216
 217                                         // Stop tracking ajax requests
 218                                         $( document ).off( 'ajaxSend', trackAjax );
 219
 220                                         // As a convenience feature, automatically restore warnings if they're
 221                                         // still suppressed by the end of the test.
 222                                         restoreWarnings();
 223
 224                                         // Farewell, mock environment!
 225                                         mw.config = liveConfig;
 226                                         mw.messages = liveMessages;
 227                                         // Restore reference to mw.messages
 228                                         mw.jqueryMsg.setParserDefaults( {
 229                                                 messages: liveMessages
 230                                         } );
 231
 232                                         // Tests should use fake timers or wait for animations to complete
 233                                         // Check for incomplete animations/requests/etc and throw if there are any.
 234                                         if ( $.timers && $.timers.length !== 0 ) {
 235                                                 timers = $.timers.length;
 236                                                 $.each( $.timers, function ( i, timer ) {
 237                                                         var node = timer.elem;
 238                                                         mw.log.warn( 'Unfinished animation #' + i + ' in ' + timer.queue + ' queue on ' +
 239                                                                 mw.html.element( node.nodeName.toLowerCase(), $( node ).getAttrs() )
 240                                                         );
 241                                                 } );
 242                                                 // Force animations to stop to give the next test a clean start
 243                                                 $.fx.stop();
 244
 245                                                 throw new Error( 'Unfinished animations: ' + timers );
 246                                         }
 247
 248                                         // Test should use fake XHR, wait for requests, or call abort()
 249                                         $activeLen = $.active;
 250                                         if ( $activeLen !== undefined && $activeLen !== 0 ) {
 251                                                 pending = $.grep( ajaxRequests, function ( ajax ) {
 252                                                         return ajax.xhr.state() === 'pending';
 253                                                 } );
 254                                                 if ( pending.length !== $activeLen ) {
 255                                                         mw.log.warn( 'Pending requests does not match jQuery.active count' );
 256                                                 }
 257                                                 // Force requests to stop to give the next test a clean start
 258                                                 $.each( ajaxRequests, function ( i, ajax ) {
 259                                                         mw.log.warn(
 260                                                                 'AJAX request #' + i + ' (state: ' + ajax.xhr.state() + ')',
 261                                                                 ajax.options
 262                                                         );
 263                                                         ajax.xhr.abort();
 264                                                 } );
 265                                                 ajaxRequests = [];
 266
 267                                                 throw new Error( 'Pending AJAX requests: ' + pending.length + ' (active: ' + $activeLen + ')' );
 268                                         }
 269                                 }
 270                         };
 271                 };
 272         }() );
 273
 274         // $.when stops as soon as one fails, which makes sense in most
 275         // practical scenarios, but not in a unit test where we really do
 276         // need to wait until all of them are finished.
 277         QUnit.whenPromisesComplete = function () {
 278                 var altPromises = [];
 279
 280                 $.each( arguments, function ( i, arg ) {
 281                         var alt = $.Deferred();
 282                         altPromises.push( alt );
 283
 284                         // Whether this one fails or not, forwards it to
 285                         // the 'done' (resolve) callback of the alternative promise.
 286                         arg.always( alt.resolve );
 287                 } );
 288
 289                 return $.when.apply( $, altPromises );
 290         };
 291
 292         /**
 293          * Recursively convert a node to a plain object representing its structure.
 294          * Only considers attributes and contents (elements and text nodes).
 295          * Attribute values are compared strictly and not normalised.
 296          *
 297          * @param {Node} node
 298          * @return {Object|string} Plain JavaScript value representing the node.
 299          */
 300         function getDomStructure( node ) {
 301                 var $node, children, processedChildren, i, len, el;
 302                 $node = $( node );
 303                 if ( node.nodeType === Node.ELEMENT_NODE ) {
 304                         children = $node.contents();
 305                         processedChildren = [];
 306                         for ( i = 0, len = children.length; i < len; i++ ) {
 307                                 el = children[ i ];
 308                                 if ( el.nodeType === Node.ELEMENT_NODE || el.nodeType === Node.TEXT_NODE ) {
 309                                         processedChildren.push( getDomStructure( el ) );
 310                                 }
 311                         }
 312
 313                         return {
 314                                 tagName: node.tagName,
 315                                 attributes: $node.getAttrs(),
 316                                 contents: processedChildren
 317                         };
 318                 } else {
 319                         // Should be text node
 320                         return $node.text();
 321                 }
 322         }
 323
 324         /**
 325          * Gets structure of node for this HTML.
 326          *
 327          * @param {string} html HTML markup for one or more nodes.
 328          */
 329         function getHtmlStructure( html ) {
 330                 var el = $( '<div>' ).append( html )[ 0 ];
 331                 return getDomStructure( el );
 332         }
 333
 334         /**
 335          * Add-on assertion helpers
 336          */
 337         // Define the add-ons
 338         addons = {
 339
 340                 // Expect boolean true
 341                 assertTrue: function ( actual, message ) {
 342                         QUnit.push( actual === true, actual, true, message );
 343                 },
 344
 345                 // Expect boolean false
 346                 assertFalse: function ( actual, message ) {
 347                         QUnit.push( actual === false, actual, false, message );
 348                 },
 349
 350                 // Expect numerical value less than X
 351                 lt: function ( actual, expected, message ) {
 352                         QUnit.push( actual < expected, actual, 'less than ' + expected, message );
 353                 },
 354
 355                 // Expect numerical value less than or equal to X
 356                 ltOrEq: function ( actual, expected, message ) {
 357                         QUnit.push( actual <= expected, actual, 'less than or equal to ' + expected, message );
 358                 },
 359
 360                 // Expect numerical value greater than X
 361                 gt: function ( actual, expected, message ) {
 362                         QUnit.push( actual > expected, actual, 'greater than ' + expected, message );
 363                 },
 364
 365                 // Expect numerical value greater than or equal to X
 366                 gtOrEq: function ( actual, expected, message ) {
 367                         QUnit.push( actual >= expected, actual, 'greater than or equal to ' + expected, message );
 368                 },
 369
 370                 /**
 371                  * Asserts that two HTML strings are structurally equivalent.
 372                  *
 373                  * @param {string} actualHtml Actual HTML markup.
 374                  * @param {string} expectedHtml Expected HTML markup
 375                  * @param {string} message Assertion message.
 376                  */
 377                 htmlEqual: function ( actualHtml, expectedHtml, message ) {
 378                         var actual = getHtmlStructure( actualHtml ),
 379                                 expected = getHtmlStructure( expectedHtml );
 380
 381                         QUnit.push(
 382                                 QUnit.equiv(
 383                                         actual,
 384                                         expected
 385                                 ),
 386                                 actual,
 387                                 expected,
 388                                 message
 389                         );
 390                 },
 391
 392                 /**
 393                  * Asserts that two HTML strings are not structurally equivalent.
 394                  *
 395                  * @param {string} actualHtml Actual HTML markup.
 396                  * @param {string} expectedHtml Expected HTML markup.
 397                  * @param {string} message Assertion message.
 398                  */
 399                 notHtmlEqual: function ( actualHtml, expectedHtml, message ) {
 400                         var actual = getHtmlStructure( actualHtml ),
 401                                 expected = getHtmlStructure( expectedHtml );
 402
 403                         QUnit.push(
 404                                 !QUnit.equiv(
 405                                         actual,
 406                                         expected
 407                                 ),
 408                                 actual,
 409                                 expected,
 410                                 message
 411                         );
 412                 }
 413         };
 414
 415         $.extend( QUnit.assert, addons );
 416
 417         /**
 418          * Small test suite to confirm proper functionality of the utilities and
 419          * initializations defined above in this file.
 420          */
 421         QUnit.module( 'test.mediawiki.qunit.testrunner', QUnit.newMwEnvironment( {
 422                 setup: function () {
 423                         this.mwHtmlLive = mw.html;
 424                         mw.html = {
 425                                 escape: function () {
 426                                         return 'mocked';
 427                                 }
 428                         };
 429                 },
 430                 teardown: function () {
 431                         mw.html = this.mwHtmlLive;
 432                 },
 433                 config: {
 434                         testVar: 'foo'
 435                 },
 436                 messages: {
 437                         testMsg: 'Foo.'
 438                 }
 439         } ) );
 440
 441         QUnit.test( 'Setup', function ( assert ) {
 442                 assert.equal( mw.html.escape( 'foo' ), 'mocked', 'setup() callback was ran.' );
 443                 assert.equal( mw.config.get( 'testVar' ), 'foo', 'config object applied' );
 444                 assert.equal( mw.messages.get( 'testMsg' ), 'Foo.', 'messages object applied' );
 445
 446                 mw.config.set( 'testVar', 'bar' );
 447                 mw.messages.set( 'testMsg', 'Bar.' );
 448         } );
 449
 450         QUnit.test( 'Teardown', function ( assert ) {
 451                 assert.equal( mw.config.get( 'testVar' ), 'foo', 'config object restored and re-applied after test()' );
 452                 assert.equal( mw.messages.get( 'testMsg' ), 'Foo.', 'messages object restored and re-applied after test()' );
 453         } );
 454
 455         QUnit.test( 'Loader status', function ( assert ) {
 456                 var i, len, state,
 457                         modules = mw.loader.getModuleNames(),
 458                         error = [],
 459                         missing = [];
 460
 461                 for ( i = 0, len = modules.length; i < len; i++ ) {
 462                         state = mw.loader.getState( modules[ i ] );
 463                         if ( state === 'error' ) {
 464                                 error.push( modules[ i ] );
 465                         } else if ( state === 'missing' ) {
 466                                 missing.push( modules[ i ] );
 467                         }
 468                 }
 469
 470                 assert.deepEqual( error, [], 'Modules in error state' );
 471                 assert.deepEqual( missing, [], 'Modules in missing state' );
 472         } );
 473
 474         QUnit.test( 'htmlEqual', function ( assert ) {
 475                 assert.htmlEqual(
 476                         '<div><p class="some classes" data-length="10">Child paragraph with <a href="http://example.com">A link</a></p>Regular text<span>A span</span></div>',
 477                         '<div><p data-length=\'10\'  class=\'some classes\'>Child paragraph with <a href=\'http://example.com\' >A link</a></p>Regular text<span>A span</span></div>',
 478                         'Attribute order, spacing and quotation marks (equal)'
 479                 );
 480
 481                 assert.notHtmlEqual(
 482                         '<div><p class="some classes" data-length="10">Child paragraph with <a href="http://example.com">A link</a></p>Regular text<span>A span</span></div>',
 483                         '<div><p data-length=\'10\'  class=\'some more classes\'>Child paragraph with <a href=\'http://example.com\' >A link</a></p>Regular text<span>A span</span></div>',
 484                         'Attribute order, spacing and quotation marks (not equal)'
 485                 );
 486
 487                 assert.htmlEqual(
 488                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="minor">Last</label><input id="lastname" />',
 489                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="minor">Last</label><input id="lastname" />',
 490                         'Multiple root nodes (equal)'
 491                 );
 492
 493                 assert.notHtmlEqual(
 494                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="minor">Last</label><input id="lastname" />',
 495                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="important" >Last</label><input id="lastname" />',
 496                         'Multiple root nodes (not equal, last label node is different)'
 497                 );
 498
 499                 assert.htmlEqual(
 500                         'fo&quot;o<br/>b&gt;ar',
 501                         'fo"o<br/>b>ar',
 502                         'Extra escaping is equal'
 503                 );
 504                 assert.notHtmlEqual(
 505                         'foo&lt;br/&gt;bar',
 506                         'foo<br/>bar',
 507                         'Text escaping (not equal)'
 508                 );
 509
 510                 assert.htmlEqual(
 511                         'foo<a href="http://example.com">example</a>bar',
 512                         'foo<a href="http://example.com">example</a>bar',
 513                         'Outer text nodes are compared (equal)'
 514                 );
 515
 516                 assert.notHtmlEqual(
 517                         'foo<a href="http://example.com">example</a>bar',
 518                         'foo<a href="http://example.com">example</a>quux',
 519                         'Outer text nodes are compared (last text node different)'
 520                 );
 521
 522         } );
 523
 524         QUnit.module( 'test.mediawiki.qunit.testrunner-after', QUnit.newMwEnvironment() );
 525
 526         QUnit.test( 'Teardown', function ( assert ) {
 527                 assert.equal( mw.html.escape( '<' ), '&lt;', 'teardown() callback was ran.' );
 528                 assert.equal( mw.config.get( 'testVar' ), null, 'config object restored to live in next module()' );
 529                 assert.equal( mw.messages.get( 'testMsg' ), null, 'messages object restored to live in next module()' );
 530         } );
 531
 532 }( jQuery, mediaWiki, QUnit ) );