tests/qunit/data/testrunner.js

   1 /*global CompletenessTest */
   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         // Initiate when enabled
  68         if ( QUnit.urlParams.completenesstest ) {
  69
  70                 // Return true to ignore
  71                 mwTestIgnore = function ( val, tester ) {
  72
  73                         // Don't record methods of the properties of constructors,
  74                         // to avoid getting into a loop (prototype.constructor.prototype..).
  75                         // Since we're therefor skipping any injection for
  76                         // "new mw.Foo()", manually set it to true here.
  77                         if ( val instanceof mw.Map ) {
  78                                 tester.methodCallTracker.Map = true;
  79                                 return true;
  80                         }
  81                         if ( val instanceof mw.Title ) {
  82                                 tester.methodCallTracker.Title = true;
  83                                 return true;
  84                         }
  85
  86                         // Don't record methods of the properties of a jQuery object
  87                         if ( val instanceof $ ) {
  88                                 return true;
  89                         }
  90
  91                         return false;
  92                 };
  93
  94                 mwTester = new CompletenessTest( mw, mwTestIgnore );
  95         }
  96
  97         /**
  98          * Test environment recommended for all QUnit test modules
  99          *
 100          * Whether to log environment changes to the console
 101          */
 102         QUnit.config.urlConfig.push( 'mwlogenv' );
 103
 104         /**
 105          * Reset mw.config and others to a fresh copy of the live config for each test(),
 106          * and restore it back to the live one afterwards.
 107          * @param localEnv {Object} [optional]
 108          * @example (see test suite at the bottom of this file)
 109          * </code>
 110          */
 111         QUnit.newMwEnvironment = ( function () {
 112                 var log, liveConfig, liveMessages;
 113
 114                 liveConfig = mw.config.values;
 115                 liveMessages = mw.messages.values;
 116
 117                 function freshConfigCopy( custom ) {
 118                         // Tests should mock all factors that directly influence the tested code.
 119                         // For backwards compatibility though we set mw.config to a copy of the live config
 120                         // and extend it with the (optionally) given custom settings for this test
 121                         // (instead of starting blank with only the given custmo settings).
 122                         // This is a shallow copy, so we don't end up with settings taking an array value
 123                         // extended with the custom settings - setting a config property means you override it,
 124                         // not extend it.
 125                         return $.extend( {}, liveConfig, custom );
 126                 }
 127
 128                 function freshMessagesCopy( custom ) {
 129                         return $.extend( /*deep=*/true, {}, liveMessages, custom );
 130                 }
 131
 132                 log = QUnit.urlParams.mwlogenv ? mw.log : function () {};
 133
 134                 return function ( localEnv ) {
 135                         localEnv = $.extend( {
 136                                 // QUnit
 137                                 setup: $.noop,
 138                                 teardown: $.noop,
 139                                 // MediaWiki
 140                                 config: {},
 141                                 messages: {}
 142                         }, localEnv );
 143
 144                         return {
 145                                 setup: function () {
 146                                         log( 'MwEnvironment> SETUP    for "' + QUnit.config.current.module
 147                                                 + ': ' + QUnit.config.current.testName + '"' );
 148
 149                                         // Greetings, mock environment!
 150                                         mw.config.values = freshConfigCopy( localEnv.config );
 151                                         mw.messages.values = freshMessagesCopy( localEnv.messages );
 152
 153                                         localEnv.setup.call( this );
 154                                 },
 155
 156                                 teardown: function () {
 157                                         log( 'MwEnvironment> TEARDOWN for "' + QUnit.config.current.module
 158                                                 + ': ' + QUnit.config.current.testName + '"' );
 159
 160                                         localEnv.teardown.call( this );
 161
 162                                         // Farewell, mock environment!
 163                                         mw.config.values = liveConfig;
 164                                         mw.messages.values = liveMessages;
 165                                 }
 166                         };
 167                 };
 168         }() );
 169
 170         // $.when stops as soon as one fails, which makes sense in most
 171         // practical scenarios, but not in a unit test where we really do
 172         // need to wait until all of them are finished.
 173         QUnit.whenPromisesComplete = function () {
 174                 var altPromises = [];
 175
 176                 $.each( arguments, function ( i, arg ) {
 177                         var alt = $.Deferred();
 178                         altPromises.push( alt );
 179
 180                         // Whether this one fails or not, forwards it to
 181                         // the 'done' (resolve) callback of the alternative promise.
 182                         arg.always( alt.resolve );
 183                 } );
 184
 185                 return $.when.apply( $, altPromises );
 186         };
 187
 188         /**
 189          * Recursively convert a node to a plain object representing its structure.
 190          * Only considers attributes and contents (elements and text nodes).
 191          * Attribute values are compared strictly and not normalised.
 192          *
 193          * @param {Node} node
 194          * @return {Object|string} Plain JavaScript value representing the node.
 195          */
 196         function getDomStructure( node ) {
 197                 var $node, children, processedChildren, i, len, el;
 198                 $node = $( node );
 199                 if ( node.nodeType === ELEMENT_NODE ) {
 200                         children = $node.contents();
 201                         processedChildren = [];
 202                         for ( i = 0, len = children.length; i < len; i++ ) {
 203                                 el = children[i];
 204                                 if ( el.nodeType === ELEMENT_NODE || el.nodeType === TEXT_NODE ) {
 205                                         processedChildren.push( getDomStructure( el ) );
 206                                 }
 207                         }
 208
 209                         return {
 210                                 tagName: node.tagName,
 211                                 attributes: $node.getAttrs(),
 212                                 contents: processedChildren
 213                         };
 214                 } else {
 215                         // Should be text node
 216                         return $node.text();
 217                 }
 218         }
 219
 220         /**
 221          * Gets structure of node for this HTML.
 222          *
 223          * @param {string} html HTML markup for one or more nodes.
 224          */
 225         function getHtmlStructure( html ) {
 226                 var el = $( '<div>' ).append( html )[0];
 227                 return getDomStructure( el );
 228         }
 229
 230         /**
 231          * Add-on assertion helpers
 232          */
 233         // Define the add-ons
 234         addons = {
 235
 236                 // Expect boolean true
 237                 assertTrue: function ( actual, message ) {
 238                         QUnit.push( actual === true, actual, true, message );
 239                 },
 240
 241                 // Expect boolean false
 242                 assertFalse: function ( actual, message ) {
 243                         QUnit.push( actual === false, actual, false, message );
 244                 },
 245
 246                 // Expect numerical value less than X
 247                 lt: function ( actual, expected, message ) {
 248                         QUnit.push( actual < expected, actual, 'less than ' + expected, message );
 249                 },
 250
 251                 // Expect numerical value less than or equal to X
 252                 ltOrEq: function ( actual, expected, message ) {
 253                         QUnit.push( actual <= expected, actual, 'less than or equal to ' + expected, message );
 254                 },
 255
 256                 // Expect numerical value greater than X
 257                 gt: function ( actual, expected, message ) {
 258                         QUnit.push( actual > expected, actual, 'greater than ' + expected, message );
 259                 },
 260
 261                 // Expect numerical value greater than or equal to X
 262                 gtOrEq: function ( actual, expected, message ) {
 263                         QUnit.push( actual >= expected, actual, 'greater than or equal to ' + expected, message );
 264                 },
 265
 266                 /**
 267                  * Asserts that two HTML strings are structurally equivalent.
 268                  *
 269                  * @param {string} actualHtml Actual HTML markup.
 270                  * @param {string} expectedHtml Expected HTML markup
 271                  * @param {string} message Assertion message.
 272                  */
 273                 htmlEqual: function ( actualHtml, expectedHtml, message ) {
 274                         var actual = getHtmlStructure( actualHtml ),
 275                                 expected = getHtmlStructure( expectedHtml );
 276
 277                         QUnit.push(
 278                                 QUnit.equiv(
 279                                         actual,
 280                                         expected
 281                                 ),
 282                                 actual,
 283                                 expected,
 284                                 message
 285                         );
 286                 },
 287
 288                 /**
 289                  * Asserts that two HTML strings are not structurally equivalent.
 290                  *
 291                  * @param {string} actualHtml Actual HTML markup.
 292                  * @param {string} expectedHtml Expected HTML markup.
 293                  * @param {string} message Assertion message.
 294                  */
 295                 notHtmlEqual: function ( actualHtml, expectedHtml, message ) {
 296                         var actual = getHtmlStructure( actualHtml ),
 297                                 expected = getHtmlStructure( expectedHtml );
 298
 299                         QUnit.push(
 300                                 !QUnit.equiv(
 301                                         actual,
 302                                         expected
 303                                 ),
 304                                 actual,
 305                                 expected,
 306                                 message
 307                         );
 308                 }
 309         };
 310
 311         $.extend( QUnit.assert, addons );
 312
 313         /**
 314          * Small test suite to confirm proper functionality of the utilities and
 315          * initializations defined above in this file.
 316          */
 317         envExecCount = 0;
 318         QUnit.module( 'test.mediawiki.qunit.testrunner', QUnit.newMwEnvironment( {
 319                 setup: function () {
 320                         envExecCount += 1;
 321                         this.mwHtmlLive = mw.html;
 322                         mw.html = {
 323                                 escape: function () {
 324                                         return 'mocked-' + envExecCount;
 325                                 }
 326                         };
 327                 },
 328                 teardown: function () {
 329                         mw.html = this.mwHtmlLive;
 330                 },
 331                 config: {
 332                         testVar: 'foo'
 333                 },
 334                 messages: {
 335                         testMsg: 'Foo.'
 336                 }
 337         } ) );
 338
 339         QUnit.test( 'Setup', 3, function ( assert ) {
 340                 assert.equal( mw.html.escape( 'foo' ), 'mocked-1', 'extra setup() callback was ran.' );
 341                 assert.equal( mw.config.get( 'testVar' ), 'foo', 'config object applied' );
 342                 assert.equal( mw.messages.get( 'testMsg' ), 'Foo.', 'messages object applied' );
 343
 344                 mw.config.set( 'testVar', 'bar' );
 345                 mw.messages.set( 'testMsg', 'Bar.' );
 346         } );
 347
 348         QUnit.test( 'Teardown', 3, function ( assert ) {
 349                 assert.equal( mw.html.escape( 'foo' ), 'mocked-2', 'extra setup() callback was re-ran.' );
 350                 assert.equal( mw.config.get( 'testVar' ), 'foo', 'config object restored and re-applied after test()' );
 351                 assert.equal( mw.messages.get( 'testMsg' ), 'Foo.', 'messages object restored and re-applied after test()' );
 352         } );
 353
 354         QUnit.test( 'Loader status', 2, function ( assert ) {
 355                 var i, len, state,
 356                         modules = mw.loader.getModuleNames(),
 357                         error = [],
 358                         missing = [];
 359
 360                 for ( i = 0, len = modules.length; i < len; i++ ) {
 361                         state = mw.loader.getState( modules[i] );
 362                         if ( state === 'error' ) {
 363                                 error.push( modules[i] );
 364                         } else if ( state === 'missing' ) {
 365                                 missing.push( modules[i] );
 366                         }
 367                 }
 368
 369                 assert.deepEqual( error, [], 'Modules in error state' );
 370                 assert.deepEqual( missing, [], 'Modules in missing state' );
 371         } );
 372
 373         QUnit.test( 'htmlEqual', 8, function ( assert ) {
 374                 assert.htmlEqual(
 375                         '<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>',
 376                         '<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>',
 377                         'Attribute order, spacing and quotation marks (equal)'
 378                 );
 379
 380                 assert.notHtmlEqual(
 381                         '<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>',
 382                         '<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>',
 383                         'Attribute order, spacing and quotation marks (not equal)'
 384                 );
 385
 386                 assert.htmlEqual(
 387                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="minor">Last</label><input id="lastname" />',
 388                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="minor">Last</label><input id="lastname" />',
 389                         'Multiple root nodes (equal)'
 390                 );
 391
 392                 assert.notHtmlEqual(
 393                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="minor">Last</label><input id="lastname" />',
 394                         '<label for="firstname" accesskey="f" class="important">First</label><input id="firstname" /><label for="lastname" accesskey="l" class="important" >Last</label><input id="lastname" />',
 395                         'Multiple root nodes (not equal, last label node is different)'
 396                 );
 397
 398                 assert.htmlEqual(
 399                         'fo&quot;o<br/>b&gt;ar',
 400                         'fo"o<br/>b>ar',
 401                         'Extra escaping is equal'
 402                 );
 403                 assert.notHtmlEqual(
 404                         'foo&lt;br/&gt;bar',
 405                         'foo<br/>bar',
 406                         'Text escaping (not equal)'
 407                 );
 408
 409                 assert.htmlEqual(
 410                         'foo<a href="http://example.com">example</a>bar',
 411                         'foo<a href="http://example.com">example</a>bar',
 412                         'Outer text nodes are compared (equal)'
 413                 );
 414
 415                 assert.notHtmlEqual(
 416                         'foo<a href="http://example.com">example</a>bar',
 417                         'foo<a href="http://example.com">example</a>quux',
 418                         'Outer text nodes are compared (last text node different)'
 419                 );
 420
 421         } );
 422
 423         QUnit.module( 'test.mediawiki.qunit.testrunner-after', QUnit.newMwEnvironment() );
 424
 425         QUnit.test( 'Teardown', 3, function ( assert ) {
 426                 assert.equal( mw.html.escape( '<' ), '&lt;', 'extra teardown() callback was ran.' );
 427                 assert.equal( mw.config.get( 'testVar' ), null, 'config object restored to live in next module()' );
 428                 assert.equal( mw.messages.get( 'testMsg' ), null, 'messages object restored to live in next module()' );
 429         } );
 430
 431 }( jQuery, mediaWiki, QUnit ) );