tests/qunit/data/testrunner.js

   1 /*global CompletenessTest, sinon */
   2 /*jshint evil: true */
   3 ( function ( $, mw, QUnit ) {
   4         'use strict';
   5
   6         var mwTestIgnore, mwTester,
   7                 addons,
   8                 ELEMENT_NODE = 1,
   9                 TEXT_NODE = 3;
  10
  11         /**
  12          * Add bogus to url to prevent IE crazy caching
  13          *
  14          * @param value {String} a relative path (eg. 'data/foo.js'
  15          * or 'data/test.php?foo=bar').
  16          * @return {String} Such as 'data/foo.js?131031765087663960'
  17          */
  18         QUnit.fixurl = function ( value ) {
  19                 return value + (/\?/.test( value ) ? '&' : '?')
  20                         + String( new Date().getTime() )
  21                         + String( parseInt( Math.random() * 100000, 10 ) );
  22         };
  23
  24         /**
  25          * Configuration
  26          */
  27
  28         // When a test() indicates asynchronicity with stop(),
  29         // allow 30 seconds to pass before killing the test(),
  30         // and assuming failure.
  31         QUnit.config.testTimeout = 30 * 1000;
  32
  33         QUnit.config.requireExpects = true;
  34
  35         // Add a checkbox to QUnit header to toggle MediaWiki ResourceLoader debug mode.
  36         QUnit.config.urlConfig.push( {
  37                 id: 'debug',
  38                 label: 'Enable ResourceLoaderDebug',
  39                 tooltip: 'Enable debug mode in ResourceLoader',
  40                 value: 'true'
  41         } );
  42
  43         /**
  44          * CompletenessTest
  45          *
  46          * Adds toggle checkbox to header
  47          */
  48         QUnit.config.urlConfig.push( {
  49                 id: 'completenesstest',
  50                 label: 'Run CompletenessTest',
  51                 tooltip: 'Run the completeness test'
  52         } );
  53
  54         /**
  55          * SinonJS
  56          *
  57          * Glue code for nicer integration with QUnit setup/teardown
  58          * Inspired by http://sinonjs.org/releases/sinon-qunit-1.0.0.js
  59          * Fixes:
  60          * - Work properly with asynchronous QUnit by using module setup/teardown
  61          *   instead of synchronously wrapping QUnit.test.
  62          */
  63         sinon.assert.fail = function ( msg ) {
  64                 QUnit.assert.ok( false, msg );
  65         };
  66         sinon.assert.pass = function ( msg ) {
  67                 QUnit.assert.ok( true, msg );
  68         };
  69         sinon.config = {
  70                 injectIntoThis: true,
  71                 injectInto: null,
  72                 properties: ['spy', 'stub', 'mock', 'sandbox'],
  73                 // Don't fake timers by default
  74                 useFakeTimers: false,
  75                 useFakeServer: false
  76         };
  77         ( function () {
  78                 var orgModule = QUnit.module;
  79
  80                 QUnit.module = function ( name, localEnv ) {
  81                         localEnv = localEnv || {};
  82                         orgModule( name, {
  83                                 setup: function () {
  84                                         var config = sinon.getConfig( sinon.config );
  85                                         config.injectInto = this;
  86                                         sinon.sandbox.create( config );
  87
  88                                         if ( localEnv.setup ) {
  89                                                 localEnv.setup.call( this );
  90                                         }
  91                                 },
  92                                 teardown: function () {
  93                                         this.sandbox.verifyAndRestore();
  94
  95                                         if ( localEnv.teardown ) {
  96                                                 localEnv.teardown.call( this );
  97                                         }
  98                                 }
  99                         } );
 100                 };
 101         }() );
 102
 103         // Extend QUnit.module to provide a fixture element.
 104         ( function () {
 105                 var orgModule = QUnit.module;
 106
 107                 QUnit.module = function ( name, localEnv ) {
 108                         var fixture;
 109                         localEnv = localEnv || {};
 110                         orgModule( name, {
 111                                 setup: function () {
 112                                         fixture = document.createElement( 'div' );
 113                                         fixture.id = 'qunit-fixture';
 114                                         document.body.appendChild( fixture );
 115
 116                                         if ( localEnv.setup ) {
 117                                                 localEnv.setup.call( this );
 118                                         }
 119                                 },
 120                                 teardown: function () {
 121                                         if ( localEnv.teardown ) {
 122                                                 localEnv.teardown.call( this );
 123                                         }
 124
 125                                         fixture.parentNode.removeChild( fixture );
 126                                 }
 127                         } );
 128                 };
 129         }() );
 130
 131         // Initiate when enabled
 132         if ( QUnit.urlParams.completenesstest ) {
 133
 134                 // Return true to ignore
 135                 mwTestIgnore = function ( val, tester ) {
 136
 137                         // Don't record methods of the properties of constructors,
 138                         // to avoid getting into a loop (prototype.constructor.prototype..).
 139                         // Since we're therefor skipping any injection for
 140                         // "new mw.Foo()", manually set it to true here.
 141                         if ( val instanceof mw.Map ) {
 142                                 tester.methodCallTracker.Map = true;
 143                                 return true;
 144                         }
 145                         if ( val instanceof mw.Title ) {
 146                                 tester.methodCallTracker.Title = true;
 147                                 return true;
 148                         }
 149
 150                         // Don't record methods of the properties of a jQuery object
 151                         if ( val instanceof $ ) {
 152                                 return true;
 153                         }
 154
 155                         // Don't iterate over the module registry (the 'script' references would
 156                         // be listed as untested methods otherwise)
 157                         if ( val === mw.loader.moduleRegistry ) {
 158                                 return true;
 159                         }
 160
 161                         return false;
 162                 };
 163
 164                 mwTester = new CompletenessTest( mw, mwTestIgnore );
 165         }
 166
 167         /**
 168          * Test environment recommended for all QUnit test modules
 169          *
 170          * Whether to log environment changes to the console
 171          */
 172         QUnit.config.urlConfig.push( 'mwlogenv' );
 173
 174         /**
 175          * Reset mw.config and others to a fresh copy of the live config for each test(),
 176          * and restore it back to the live one afterwards.
 177          * @param localEnv {Object} [optional]
 178          * @example (see test suite at the bottom of this file)
 179          * </code>
 180          */
 181         QUnit.newMwEnvironment = ( function () {
 182                 var warn, log, liveConfig, liveMessages;
 183
 184                 liveConfig = mw.config.values;
 185                 liveMessages = mw.messages.values;
 186
 187                 function suppressWarnings() {
 188                         warn = mw.log.warn;
 189                         mw.log.warn = $.noop;
 190                 }
 191
 192                 function restoreWarnings() {
 193                         if ( warn !== undefined ) {
 194                                 mw.log.warn = warn;
 195                                 warn = undefined;
 196                         }
 197                 }
 198
 199                 function freshConfigCopy( custom ) {
 200                         var copy;
 201                         // Tests should mock all factors that directly influence the tested code.
 202                         // For backwards compatibility though we set mw.config to a fresh copy of the live
 203                         // config. This way any modifications made to mw.config during the test will not
 204                         // affect other tests, nor the global scope outside the test runner.
 205                         // This is a shallow copy, since overriding an array or object value via "custom"
 206                         // should replace it. Setting a config property means you override it, not extend it.
 207                         // NOTE: It is important that we suppress warnings because extend() will also access
 208                         // deprecated properties and trigger deprecation warnings from mw.log#deprecate.
 209                         suppressWarnings();
 210                         copy = $.extend( {}, liveConfig, custom );
 211                         restoreWarnings();
 212
 213                         return copy;
 214                 }
 215
 216                 function freshMessagesCopy( custom ) {
 217                         return $.extend( /*deep=*/true, {}, liveMessages, custom );
 218                 }
 219
 220                 log = QUnit.urlParams.mwlogenv ? mw.log : function () {};
 221
 222                 return function ( localEnv ) {
 223                         localEnv = $.extend( {
 224                                 // QUnit
 225                                 setup: $.noop,
 226                                 teardown: $.noop,
 227                                 // MediaWiki
 228                                 config: {},
 229                                 messages: {}
 230                         }, localEnv );
 231
 232                         return {
 233                                 setup: function () {
 234                                         log( 'MwEnvironment> SETUP    for "' + QUnit.config.current.module
 235                                                 + ': ' + QUnit.config.current.testName + '"' );
 236
 237                                         // Greetings, mock environment!
 238                                         mw.config.values = freshConfigCopy( localEnv.config );
 239                                         mw.messages.values = freshMessagesCopy( localEnv.messages );
 240                                         this.suppressWarnings = suppressWarnings;
 241                                         this.restoreWarnings = restoreWarnings;
 242
 243                                         localEnv.setup.call( this );
 244                                 },
 245
 246                                 teardown: function () {
 247                                         var timers;
 248                                         log( 'MwEnvironment> TEARDOWN for "' + QUnit.config.current.module
 249                                                 + ': ' + QUnit.config.current.testName + '"' );
 250
 251                                         localEnv.teardown.call( this );
 252
 253                                         // Farewell, mock environment!
 254                                         mw.config.values = liveConfig;
 255                                         mw.messages.values = liveMessages;
 256
 257                                         // As a convenience feature, automatically restore warnings if they're
 258                                         // still suppressed by the end of the test.
 259                                         restoreWarnings();
 260
 261                                         // Check for incomplete animations/requests/etc and throw
 262                                         // error if there are any.
 263                                         if ( $.timers && $.timers.length !== 0 ) {
 264                                                 timers = $.timers.length;
 265                                                 // Tests shoulld use fake timers or wait for animations to complete
 266                                                 $.each( $.timers, function ( i, timer ) {
 267                                                         var node = timer.elem;
 268                                                         mw.log.warn( 'Unfinished animation #' + i + ' in ' + timer.queue + ' queue on ' +
 269                                                                 mw.html.element( node.nodeName.toLowerCase(), $(node).getAttrs() )
 270                                                         );
 271                                                 } );
 272                                                 // Force animations to stop to give the next test a clean start
 273                                                 $.fx.stop();
 274
 275                                                 throw new Error( 'Unfinished animations: ' + timers );
 276                                         }
 277                                         if ( $.active !== undefined && $.active !== 0 ) {
 278                                                 // Test may need to use fake XHR, wait for requests or
 279                                                 // call abort().
 280                                                 throw new Error( 'Unfinished AJAX requests: ' + $.active );
 281                                         }
 282                                 }
 283                         };
 284                 };
 285         }() );
 286
 287         // $.when stops as soon as one fails, which makes sense in most
 288         // practical scenarios, but not in a unit test where we really do
 289         // need to wait until all of them are finished.
 290         QUnit.whenPromisesComplete = function () {
 291                 var altPromises = [];
 292
 293                 $.each( arguments, function ( i, arg ) {
 294                         var alt = $.Deferred();
 295                         altPromises.push( alt );
 296
 297                         // Whether this one fails or not, forwards it to
 298                         // the 'done' (resolve) callback of the alternative promise.
 299                         arg.always( alt.resolve );
 300                 } );
 301
 302                 return $.when.apply( $, altPromises );
 303         };
 304
 305         /**
 306          * Recursively convert a node to a plain object representing its structure.
 307          * Only considers attributes and contents (elements and text nodes).
 308          * Attribute values are compared strictly and not normalised.
 309          *
 310          * @param {Node} node
 311          * @return {Object|string} Plain JavaScript value representing the node.
 312          */
 313         function getDomStructure( node ) {
 314                 var $node, children, processedChildren, i, len, el;
 315                 $node = $( node );
 316                 if ( node.nodeType === ELEMENT_NODE ) {
 317                         children = $node.contents();
 318                         processedChildren = [];
 319                         for ( i = 0, len = children.length; i < len; i++ ) {
 320                                 el = children[i];
 321                                 if ( el.nodeType === ELEMENT_NODE || el.nodeType === TEXT_NODE ) {
 322                                         processedChildren.push( getDomStructure( el ) );
 323                                 }
 324                         }
 325
 326                         return {
 327                                 tagName: node.tagName,
 328                                 attributes: $node.getAttrs(),
 329                                 contents: processedChildren
 330                         };
 331                 } else {
 332                         // Should be text node
 333                         return $node.text();
 334                 }
 335         }
 336
 337         /**
 338          * Gets structure of node for this HTML.
 339          *
 340          * @param {string} html HTML markup for one or more nodes.
 341          */
 342         function getHtmlStructure( html ) {
 343                 var el = $( '<div>' ).append( html )[0];
 344                 return getDomStructure( el );
 345         }
 346
 347         /**
 348          * Add-on assertion helpers
 349          */
 350         // Define the add-ons
 351         addons = {
 352
 353                 // Expect boolean true
 354                 assertTrue: function ( actual, message ) {
 355                         QUnit.push( actual === true, actual, true, message );
 356                 },
 357
 358                 // Expect boolean false
 359                 assertFalse: function ( actual, message ) {
 360                         QUnit.push( actual === false, actual, false, message );
 361                 },
 362
 363                 // Expect numerical value less than X
 364                 lt: function ( actual, expected, message ) {
 365                         QUnit.push( actual < expected, actual, 'less than ' + expected, message );
 366                 },
 367
 368                 // Expect numerical value less than or equal to X
 369                 ltOrEq: function ( actual, expected, message ) {
 370                         QUnit.push( actual <= expected, actual, 'less than or equal to ' + expected, message );
 371                 },
 372
 373                 // Expect numerical value greater than X
 374                 gt: function ( actual, expected, message ) {
 375                         QUnit.push( actual > expected, actual, 'greater than ' + expected, message );
 376                 },
 377
 378                 // Expect numerical value greater than or equal to X
 379                 gtOrEq: function ( actual, expected, message ) {
 380                         QUnit.push( actual >= expected, actual, 'greater than or equal to ' + expected, message );
 381                 },
 382
 383                 /**
 384                  * Asserts that two HTML strings are structurally equivalent.
 385                  *
 386                  * @param {string} actualHtml Actual HTML markup.
 387                  * @param {string} expectedHtml Expected HTML markup
 388                  * @param {string} message Assertion message.
 389                  */
 390                 htmlEqual: function ( actualHtml, expectedHtml, message ) {
 391                         var actual = getHtmlStructure( actualHtml ),
 392                                 expected = getHtmlStructure( expectedHtml );
 393
 394                         QUnit.push(
 395                                 QUnit.equiv(
 396                                         actual,
 397                                         expected
 398                                 ),
 399                                 actual,
 400                                 expected,
 401                                 message
 402                         );
 403                 },
 404
 405                 /**
 406                  * Asserts that two HTML strings are not structurally equivalent.
 407                  *
 408                  * @param {string} actualHtml Actual HTML markup.
 409                  * @param {string} expectedHtml Expected HTML markup.
 410                  * @param {string} message Assertion message.
 411                  */
 412                 notHtmlEqual: function ( actualHtml, expectedHtml, message ) {
 413                         var actual = getHtmlStructure( actualHtml ),
 414                                 expected = getHtmlStructure( expectedHtml );
 415
 416                         QUnit.push(
 417                                 !QUnit.equiv(
 418                                         actual,
 419                                         expected
 420                                 ),
 421                                 actual,
 422                                 expected,
 423                                 message
 424                         );
 425                 }
 426         };
 427
 428         $.extend( QUnit.assert, addons );
 429
 430         /**
 431          * Small test suite to confirm proper functionality of the utilities and
 432          * initializations defined above in this file.
 433          */
 434         QUnit.module( 'test.mediawiki.qunit.testrunner', QUnit.newMwEnvironment( {
 435                 setup: function () {
 436                         this.mwHtmlLive = mw.html;
 437                         mw.html = {
 438                                 escape: function () {
 439                                         return 'mocked';
 440                                 }
 441                         };
 442                 },
 443                 teardown: function () {
 444                         mw.html = this.mwHtmlLive;
 445                 },
 446                 config: {
 447                         testVar: 'foo'
 448                 },
 449                 messages: {
 450                         testMsg: 'Foo.'
 451                 }
 452         } ) );
 453
 454         QUnit.test( 'Setup', 3, function ( assert ) {
 455                 assert.equal( mw.html.escape( 'foo' ), 'mocked', 'setup() callback was ran.' );
 456                 assert.equal( mw.config.get( 'testVar' ), 'foo', 'config object applied' );
 457                 assert.equal( mw.messages.get( 'testMsg' ), 'Foo.', 'messages object applied' );
 458
 459                 mw.config.set( 'testVar', 'bar' );
 460                 mw.messages.set( 'testMsg', 'Bar.' );
 461         } );
 462
 463         QUnit.test( 'Teardown', 2, function ( assert ) {
 464                 assert.equal( mw.config.get( 'testVar' ), 'foo', 'config object restored and re-applied after test()' );
 465                 assert.equal( mw.messages.get( 'testMsg' ), 'Foo.', 'messages object restored and re-applied after test()' );
 466         } );
 467
 468         QUnit.test( 'Loader status', 2, function ( assert ) {
 469                 var i, len, state,
 470                         modules = mw.loader.getModuleNames(),
 471                         error = [],
 472                         missing = [];
 473
 474                 for ( i = 0, len = modules.length; i < len; i++ ) {
 475                         state = mw.loader.getState( modules[i] );
 476                         if ( state === 'error' ) {
 477                                 error.push( modules[i] );
 478                         } else if ( state === 'missing' ) {
 479                                 missing.push( modules[i] );
 480                         }
 481                 }
 482
 483                 assert.deepEqual( error, [], 'Modules in error state' );
 484                 assert.deepEqual( missing, [], 'Modules in missing state' );
 485         } );
 486
 487         QUnit.test( 'htmlEqual', 8, function ( assert ) {
 488                 assert.htmlEqual(
 489                         '<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>',
 490                         '<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>',
 491                         'Attribute order, spacing and quotation marks (equal)'
 492                 );
 493
 494                 assert.notHtmlEqual(
 495                         '<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>',
 496                         '<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>',
 497                         'Attribute order, spacing and quotation marks (not equal)'
 498                 );
 499
 500                 assert.htmlEqual(
 501                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="minor">Last</label><input id="lastname" />',
 502                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="minor">Last</label><input id="lastname" />',
 503                         'Multiple root nodes (equal)'
 504                 );
 505
 506                 assert.notHtmlEqual(
 507                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="minor">Last</label><input id="lastname" />',
 508                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="important" >Last</label><input id="lastname" />',
 509                         'Multiple root nodes (not equal, last label node is different)'
 510                 );
 511
 512                 assert.htmlEqual(
 513                         'fo&quot;o<br/>b&gt;ar',
 514                         'fo"o<br/>b>ar',
 515                         'Extra escaping is equal'
 516                 );
 517                 assert.notHtmlEqual(
 518                         'foo&lt;br/&gt;bar',
 519                         'foo<br/>bar',
 520                         'Text escaping (not equal)'
 521                 );
 522
 523                 assert.htmlEqual(
 524                         'foo<a href="http://example.com">example</a>bar',
 525                         'foo<a href="http://example.com">example</a>bar',
 526                         'Outer text nodes are compared (equal)'
 527                 );
 528
 529                 assert.notHtmlEqual(
 530                         'foo<a href="http://example.com">example</a>bar',
 531                         'foo<a href="http://example.com">example</a>quux',
 532                         'Outer text nodes are compared (last text node different)'
 533                 );
 534
 535         } );
 536
 537         QUnit.module( 'test.mediawiki.qunit.testrunner-after', QUnit.newMwEnvironment() );
 538
 539         QUnit.test( 'Teardown', 3, function ( assert ) {
 540                 assert.equal( mw.html.escape( '<' ), '&lt;', 'teardown() callback was ran.' );
 541                 assert.equal( mw.config.get( 'testVar' ), null, 'config object restored to live in next module()' );
 542                 assert.equal( mw.messages.get( 'testMsg' ), null, 'messages object restored to live in next module()' );
 543         } );
 544
 545 }( jQuery, mediaWiki, QUnit ) );