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                         return false;
 140                 };
 141
 142                 mwTester = new CompletenessTest( mw, mwTestIgnore );
 143         }
 144
 145         /**
 146          * Test environment recommended for all QUnit test modules
 147          *
 148          * Whether to log environment changes to the console
 149          */
 150         QUnit.config.urlConfig.push( 'mwlogenv' );
 151
 152         /**
 153          * Reset mw.config and others to a fresh copy of the live config for each test(),
 154          * and restore it back to the live one afterwards.
 155          * @param localEnv {Object} [optional]
 156          * @example (see test suite at the bottom of this file)
 157          * </code>
 158          */
 159         QUnit.newMwEnvironment = ( function () {
 160                 var warn, log, liveConfig, liveMessages;
 161
 162                 liveConfig = mw.config.values;
 163                 liveMessages = mw.messages.values;
 164
 165                 function suppressWarnings() {
 166                         warn = mw.log.warn;
 167                         mw.log.warn = $.noop;
 168                 }
 169
 170                 function restoreWarnings() {
 171                         if ( warn !== undefined ) {
 172                                 mw.log.warn = warn;
 173                                 warn = undefined;
 174                         }
 175                 }
 176
 177                 function freshConfigCopy( custom ) {
 178                         var copy;
 179                         // Tests should mock all factors that directly influence the tested code.
 180                         // For backwards compatibility though we set mw.config to a fresh copy of the live
 181                         // config. This way any modifications made to mw.config during the test will not
 182                         // affect other tests, nor the global scope outside the test runner.
 183                         // This is a shallow copy, since overriding an array or object value via "custom"
 184                         // should replace it. Setting a config property means you override it, not extend it.
 185                         // NOTE: It is important that we suppress warnings because extend() will also access
 186                         // deprecated properties and trigger deprecation warnings from mw.log#deprecate.
 187                         suppressWarnings();
 188                         copy = $.extend( {}, liveConfig, custom );
 189                         restoreWarnings();
 190
 191                         return copy;
 192                 }
 193
 194                 function freshMessagesCopy( custom ) {
 195                         return $.extend( /*deep=*/true, {}, liveMessages, custom );
 196                 }
 197
 198                 log = QUnit.urlParams.mwlogenv ? mw.log : function () {};
 199
 200                 return function ( localEnv ) {
 201                         localEnv = $.extend( {
 202                                 // QUnit
 203                                 setup: $.noop,
 204                                 teardown: $.noop,
 205                                 // MediaWiki
 206                                 config: {},
 207                                 messages: {}
 208                         }, localEnv );
 209
 210                         return {
 211                                 setup: function () {
 212                                         log( 'MwEnvironment> SETUP    for "' + QUnit.config.current.module
 213                                                 + ': ' + QUnit.config.current.testName + '"' );
 214
 215                                         // Greetings, mock environment!
 216                                         mw.config.values = freshConfigCopy( localEnv.config );
 217                                         mw.messages.values = freshMessagesCopy( localEnv.messages );
 218                                         this.suppressWarnings = suppressWarnings;
 219                                         this.restoreWarnings = restoreWarnings;
 220
 221                                         localEnv.setup.call( this );
 222                                 },
 223
 224                                 teardown: function () {
 225                                         log( 'MwEnvironment> TEARDOWN for "' + QUnit.config.current.module
 226                                                 + ': ' + QUnit.config.current.testName + '"' );
 227
 228                                         localEnv.teardown.call( this );
 229
 230                                         // Farewell, mock environment!
 231                                         mw.config.values = liveConfig;
 232                                         mw.messages.values = liveMessages;
 233
 234                                         // As a convenience feature, automatically restore warnings if they're
 235                                         // still suppressed by the end of the test.
 236                                         restoreWarnings();
 237                                 }
 238                         };
 239                 };
 240         }() );
 241
 242         // $.when stops as soon as one fails, which makes sense in most
 243         // practical scenarios, but not in a unit test where we really do
 244         // need to wait until all of them are finished.
 245         QUnit.whenPromisesComplete = function () {
 246                 var altPromises = [];
 247
 248                 $.each( arguments, function ( i, arg ) {
 249                         var alt = $.Deferred();
 250                         altPromises.push( alt );
 251
 252                         // Whether this one fails or not, forwards it to
 253                         // the 'done' (resolve) callback of the alternative promise.
 254                         arg.always( alt.resolve );
 255                 } );
 256
 257                 return $.when.apply( $, altPromises );
 258         };
 259
 260         /**
 261          * Recursively convert a node to a plain object representing its structure.
 262          * Only considers attributes and contents (elements and text nodes).
 263          * Attribute values are compared strictly and not normalised.
 264          *
 265          * @param {Node} node
 266          * @return {Object|string} Plain JavaScript value representing the node.
 267          */
 268         function getDomStructure( node ) {
 269                 var $node, children, processedChildren, i, len, el;
 270                 $node = $( node );
 271                 if ( node.nodeType === ELEMENT_NODE ) {
 272                         children = $node.contents();
 273                         processedChildren = [];
 274                         for ( i = 0, len = children.length; i < len; i++ ) {
 275                                 el = children[i];
 276                                 if ( el.nodeType === ELEMENT_NODE || el.nodeType === TEXT_NODE ) {
 277                                         processedChildren.push( getDomStructure( el ) );
 278                                 }
 279                         }
 280
 281                         return {
 282                                 tagName: node.tagName,
 283                                 attributes: $node.getAttrs(),
 284                                 contents: processedChildren
 285                         };
 286                 } else {
 287                         // Should be text node
 288                         return $node.text();
 289                 }
 290         }
 291
 292         /**
 293          * Gets structure of node for this HTML.
 294          *
 295          * @param {string} html HTML markup for one or more nodes.
 296          */
 297         function getHtmlStructure( html ) {
 298                 var el = $( '<div>' ).append( html )[0];
 299                 return getDomStructure( el );
 300         }
 301
 302         /**
 303          * Add-on assertion helpers
 304          */
 305         // Define the add-ons
 306         addons = {
 307
 308                 // Expect boolean true
 309                 assertTrue: function ( actual, message ) {
 310                         QUnit.push( actual === true, actual, true, message );
 311                 },
 312
 313                 // Expect boolean false
 314                 assertFalse: function ( actual, message ) {
 315                         QUnit.push( actual === false, actual, false, message );
 316                 },
 317
 318                 // Expect numerical value less than X
 319                 lt: function ( actual, expected, message ) {
 320                         QUnit.push( actual < expected, actual, 'less than ' + expected, message );
 321                 },
 322
 323                 // Expect numerical value less than or equal to X
 324                 ltOrEq: function ( actual, expected, message ) {
 325                         QUnit.push( actual <= expected, actual, 'less than or equal to ' + expected, message );
 326                 },
 327
 328                 // Expect numerical value greater than X
 329                 gt: function ( actual, expected, message ) {
 330                         QUnit.push( actual > expected, actual, 'greater than ' + expected, message );
 331                 },
 332
 333                 // Expect numerical value greater than or equal to X
 334                 gtOrEq: function ( actual, expected, message ) {
 335                         QUnit.push( actual >= expected, actual, 'greater than or equal to ' + expected, message );
 336                 },
 337
 338                 /**
 339                  * Asserts that two HTML strings are structurally equivalent.
 340                  *
 341                  * @param {string} actualHtml Actual HTML markup.
 342                  * @param {string} expectedHtml Expected HTML markup
 343                  * @param {string} message Assertion message.
 344                  */
 345                 htmlEqual: function ( actualHtml, expectedHtml, message ) {
 346                         var actual = getHtmlStructure( actualHtml ),
 347                                 expected = getHtmlStructure( expectedHtml );
 348
 349                         QUnit.push(
 350                                 QUnit.equiv(
 351                                         actual,
 352                                         expected
 353                                 ),
 354                                 actual,
 355                                 expected,
 356                                 message
 357                         );
 358                 },
 359
 360                 /**
 361                  * Asserts that two HTML strings are not structurally equivalent.
 362                  *
 363                  * @param {string} actualHtml Actual HTML markup.
 364                  * @param {string} expectedHtml Expected HTML markup.
 365                  * @param {string} message Assertion message.
 366                  */
 367                 notHtmlEqual: function ( actualHtml, expectedHtml, message ) {
 368                         var actual = getHtmlStructure( actualHtml ),
 369                                 expected = getHtmlStructure( expectedHtml );
 370
 371                         QUnit.push(
 372                                 !QUnit.equiv(
 373                                         actual,
 374                                         expected
 375                                 ),
 376                                 actual,
 377                                 expected,
 378                                 message
 379                         );
 380                 }
 381         };
 382
 383         $.extend( QUnit.assert, addons );
 384
 385         /**
 386          * Small test suite to confirm proper functionality of the utilities and
 387          * initializations defined above in this file.
 388          */
 389         QUnit.module( 'test.mediawiki.qunit.testrunner', QUnit.newMwEnvironment( {
 390                 setup: function () {
 391                         this.mwHtmlLive = mw.html;
 392                         mw.html = {
 393                                 escape: function () {
 394                                         return 'mocked';
 395                                 }
 396                         };
 397                 },
 398                 teardown: function () {
 399                         mw.html = this.mwHtmlLive;
 400                 },
 401                 config: {
 402                         testVar: 'foo'
 403                 },
 404                 messages: {
 405                         testMsg: 'Foo.'
 406                 }
 407         } ) );
 408
 409         QUnit.test( 'Setup', 3, function ( assert ) {
 410                 assert.equal( mw.html.escape( 'foo' ), 'mocked', 'setup() callback was ran.' );
 411                 assert.equal( mw.config.get( 'testVar' ), 'foo', 'config object applied' );
 412                 assert.equal( mw.messages.get( 'testMsg' ), 'Foo.', 'messages object applied' );
 413
 414                 mw.config.set( 'testVar', 'bar' );
 415                 mw.messages.set( 'testMsg', 'Bar.' );
 416         } );
 417
 418         QUnit.test( 'Teardown', 2, function ( assert ) {
 419                 assert.equal( mw.config.get( 'testVar' ), 'foo', 'config object restored and re-applied after test()' );
 420                 assert.equal( mw.messages.get( 'testMsg' ), 'Foo.', 'messages object restored and re-applied after test()' );
 421         } );
 422
 423         QUnit.test( 'Loader status', 2, function ( assert ) {
 424                 var i, len, state,
 425                         modules = mw.loader.getModuleNames(),
 426                         error = [],
 427                         missing = [];
 428
 429                 for ( i = 0, len = modules.length; i < len; i++ ) {
 430                         state = mw.loader.getState( modules[i] );
 431                         if ( state === 'error' ) {
 432                                 error.push( modules[i] );
 433                         } else if ( state === 'missing' ) {
 434                                 missing.push( modules[i] );
 435                         }
 436                 }
 437
 438                 assert.deepEqual( error, [], 'Modules in error state' );
 439                 assert.deepEqual( missing, [], 'Modules in missing state' );
 440         } );
 441
 442         QUnit.test( 'htmlEqual', 8, function ( assert ) {
 443                 assert.htmlEqual(
 444                         '<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>',
 445                         '<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>',
 446                         'Attribute order, spacing and quotation marks (equal)'
 447                 );
 448
 449                 assert.notHtmlEqual(
 450                         '<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>',
 451                         '<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>',
 452                         'Attribute order, spacing and quotation marks (not equal)'
 453                 );
 454
 455                 assert.htmlEqual(
 456                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="minor">Last</label><input id="lastname" />',
 457                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="minor">Last</label><input id="lastname" />',
 458                         'Multiple root nodes (equal)'
 459                 );
 460
 461                 assert.notHtmlEqual(
 462                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="minor">Last</label><input id="lastname" />',
 463                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="important" >Last</label><input id="lastname" />',
 464                         'Multiple root nodes (not equal, last label node is different)'
 465                 );
 466
 467                 assert.htmlEqual(
 468                         'fo&quot;o<br/>b&gt;ar',
 469                         'fo"o<br/>b>ar',
 470                         'Extra escaping is equal'
 471                 );
 472                 assert.notHtmlEqual(
 473                         'foo&lt;br/&gt;bar',
 474                         'foo<br/>bar',
 475                         'Text escaping (not equal)'
 476                 );
 477
 478                 assert.htmlEqual(
 479                         'foo<a href="http://example.com">example</a>bar',
 480                         'foo<a href="http://example.com">example</a>bar',
 481                         'Outer text nodes are compared (equal)'
 482                 );
 483
 484                 assert.notHtmlEqual(
 485                         'foo<a href="http://example.com">example</a>bar',
 486                         'foo<a href="http://example.com">example</a>quux',
 487                         'Outer text nodes are compared (last text node different)'
 488                 );
 489
 490         } );
 491
 492         QUnit.module( 'test.mediawiki.qunit.testrunner-after', QUnit.newMwEnvironment() );
 493
 494         QUnit.test( 'Teardown', 3, function ( assert ) {
 495                 assert.equal( mw.html.escape( '<' ), '&lt;', 'teardown() callback was ran.' );
 496                 assert.equal( mw.config.get( 'testVar' ), null, 'config object restored to live in next module()' );
 497                 assert.equal( mw.messages.get( 'testMsg' ), null, 'messages object restored to live in next module()' );
 498         } );
 499
 500 }( jQuery, mediaWiki, QUnit ) );