tests/qunit/data/testrunner.js

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