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