2 QUnit.module( 'mediawiki (mw.loader)', QUnit.newMwEnvironment( {
4 mw.loader.store.enabled = false;
6 teardown: function () {
7 mw.loader.store.enabled = false;
13 QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/load.mock.php' )
17 * The sync style load test (for @import). This is, in a way, also an open bug for
18 * ResourceLoader ("execute js after styles are loaded"), but browsers don't offer a
19 * way to get a callback from when a stylesheet is loaded (that is, including any
20 * `@import` rules inside). To work around this, we'll have a little time loop to check
21 * if the styles apply.
23 * Note: This test originally used new Image() and onerror to get a callback
24 * when the url is loaded, but that is fragile since it doesn't monitor the
25 * same request as the css @import, and Safari 4 has issues with
26 * onerror/onload not being fired at all in weird cases like this.
28 function assertStyleAsync( assert, $element, prop, val, fn ) {
30 el = $element.get( 0 ),
31 styleTestTimeout = ( QUnit.config.testTimeout || 5000 ) - 200;
33 function isCssImportApplied() {
34 // Trigger reflow, repaint, redraw, whatever (cross-browser)
35 var x = $element.css( 'height' );
37 el.className = el.className;
38 x = document.documentElement.clientHeight;
40 return $element.css( prop ) === val;
43 function styleTestLoop() {
44 var styleTestSince = new Date().getTime() - styleTestStart;
45 // If it is passing or if we timed out, run the real test and stop the loop
46 if ( isCssImportApplied() || styleTestSince > styleTestTimeout ) {
47 assert.equal( $element.css( prop ), val,
48 'style "' + prop + ': ' + val + '" from url is applied (after ' + styleTestSince + 'ms)'
57 // Otherwise, keep polling
58 setTimeout( styleTestLoop );
62 styleTestStart = new Date().getTime();
66 function urlStyleTest( selector, prop, val ) {
68 mw.config.get( 'wgScriptPath' ) +
69 '/tests/qunit/data/styleTest.css.php?' +
78 QUnit.test( 'Basic', 2, function ( assert ) {
81 mw.loader.testCallback = function () {
82 assert.strictEqual( isAwesomeDone, undefined, 'Implementing module is.awesome: isAwesomeDone should still be undefined' );
86 mw.loader.implement( 'test.callback', [ QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/callMwLoaderTestCallback.js' ) ] );
88 return mw.loader.using( 'test.callback', function () {
89 assert.strictEqual( isAwesomeDone, true, 'test.callback module should\'ve caused isAwesomeDone to be true' );
90 delete mw.loader.testCallback;
93 assert.ok( false, 'Error callback fired while loader.using "test.callback" module' );
97 QUnit.test( 'Object method as module name', 2, function ( assert ) {
100 mw.loader.testCallback = function () {
101 assert.strictEqual( isAwesomeDone, undefined, 'Implementing module hasOwnProperty: isAwesomeDone should still be undefined' );
102 isAwesomeDone = true;
105 mw.loader.implement( 'hasOwnProperty', [ QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/callMwLoaderTestCallback.js' ) ], {}, {} );
107 return mw.loader.using( 'hasOwnProperty', function () {
108 assert.strictEqual( isAwesomeDone, true, 'hasOwnProperty module should\'ve caused isAwesomeDone to be true' );
109 delete mw.loader.testCallback;
112 assert.ok( false, 'Error callback fired while loader.using "hasOwnProperty" module' );
116 QUnit.test( '.using( .. ) Promise', 2, function ( assert ) {
119 mw.loader.testCallback = function () {
120 assert.strictEqual( isAwesomeDone, undefined, 'Implementing module is.awesome: isAwesomeDone should still be undefined' );
121 isAwesomeDone = true;
124 mw.loader.implement( 'test.promise', [ QUnit.fixurl( mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/callMwLoaderTestCallback.js' ) ] );
126 return mw.loader.using( 'test.promise' )
128 assert.strictEqual( isAwesomeDone, true, 'test.promise module should\'ve caused isAwesomeDone to be true' );
129 delete mw.loader.testCallback;
132 assert.ok( false, 'Error callback fired while loader.using "test.promise" module' );
136 QUnit.test( '.using() Error: Circular dependency', function ( assert ) {
137 var done = assert.async();
139 mw.loader.register( [
140 [ 'test.circle1', '0', [ 'test.circle2' ] ],
141 [ 'test.circle2', '0', [ 'test.circle3' ] ],
142 [ 'test.circle3', '0', [ 'test.circle1' ] ]
144 mw.loader.using( 'test.circle3' ).then(
146 assert.ok( false, 'Unexpected resolution, expected error.' );
149 assert.ok( /Circular/.test( String( e ) ), 'Detect circular dependency' );
155 QUnit.test( '.load() - Error: Circular dependency', function ( assert ) {
156 mw.loader.register( [
157 [ 'test.circleA', '0', [ 'test.circleB' ] ],
158 [ 'test.circleB', '0', [ 'test.circleC' ] ],
159 [ 'test.circleC', '0', [ 'test.circleA' ] ]
161 assert.throws( function () {
162 mw.loader.load( 'test.circleC' );
163 }, /Circular/, 'Detect circular dependency' );
166 QUnit.test( '.using() - Error: Unregistered', function ( assert ) {
167 var done = assert.async();
169 mw.loader.using( 'test.using.unreg' ).then(
171 assert.ok( false, 'Unexpected resolution, expected error.' );
174 assert.ok( /Unknown/.test( String( e ) ), 'Detect unknown dependency' );
179 QUnit.test( '.load() - Error: Unregistered (ignored)', 0, function ( assert ) {
180 mw.loader.load( 'test.using.unreg2' );
183 QUnit.test( '.implement( styles={ "css": [text, ..] } )', 2, function ( assert ) {
184 var $element = $( '<div class="mw-test-implement-a"></div>' ).appendTo( '#qunit-fixture' );
187 $element.css( 'float' ),
196 $element.css( 'float' ),
202 all: '.mw-test-implement-a { float: right; }'
206 return mw.loader.using( 'test.implement.a' );
209 QUnit.test( '.implement( styles={ "url": { <media>: [url, ..] } } )', 7, function ( assert ) {
210 var $element1 = $( '<div class="mw-test-implement-b1"></div>' ).appendTo( '#qunit-fixture' ),
211 $element2 = $( '<div class="mw-test-implement-b2"></div>' ).appendTo( '#qunit-fixture' ),
212 $element3 = $( '<div class="mw-test-implement-b3"></div>' ).appendTo( '#qunit-fixture' ),
213 done = assert.async();
216 $element1.css( 'text-align' ),
221 $element2.css( 'float' ),
226 $element3.css( 'text-align' ),
234 // Note: done() must only be called when the entire test is
235 // complete. So, make sure that we don't start until *both*
236 // assertStyleAsync calls have completed.
238 assertStyleAsync( assert, $element2, 'float', 'left', function () {
239 assert.notEqual( $element1.css( 'text-align' ), 'center', 'print style is not applied' );
242 if ( pending === 0 ) {
246 assertStyleAsync( assert, $element3, 'float', 'right', function () {
247 assert.notEqual( $element1.css( 'text-align' ), 'center', 'print style is not applied' );
250 if ( pending === 0 ) {
257 print: [ urlStyleTest( '.mw-test-implement-b1', 'text-align', 'center' ) ],
259 // bug 40834: Make sure it actually works with more than 1 stylesheet reference
260 urlStyleTest( '.mw-test-implement-b2', 'float', 'left' ),
261 urlStyleTest( '.mw-test-implement-b3', 'float', 'right' )
267 mw.loader.load( 'test.implement.b' );
270 // Backwards compatibility
271 QUnit.test( '.implement( styles={ <media>: text } ) (back-compat)', 2, function ( assert ) {
272 var $element = $( '<div class="mw-test-implement-c"></div>' ).appendTo( '#qunit-fixture' );
275 $element.css( 'float' ),
284 $element.css( 'float' ),
290 all: '.mw-test-implement-c { float: right; }'
294 return mw.loader.using( 'test.implement.c' );
297 // Backwards compatibility
298 QUnit.test( '.implement( styles={ <media>: [url, ..] } ) (back-compat)', 4, function ( assert ) {
299 var $element = $( '<div class="mw-test-implement-d"></div>' ).appendTo( '#qunit-fixture' ),
300 $element2 = $( '<div class="mw-test-implement-d2"></div>' ).appendTo( '#qunit-fixture' ),
301 done = assert.async();
304 $element.css( 'float' ),
309 $element2.css( 'text-align' ),
317 assertStyleAsync( assert, $element, 'float', 'right', function () {
318 assert.notEqual( $element2.css( 'text-align' ), 'center', 'print style is not applied (bug 40500)' );
323 all: [ urlStyleTest( '.mw-test-implement-d', 'float', 'right' ) ],
324 print: [ urlStyleTest( '.mw-test-implement-d2', 'text-align', 'center' ) ]
328 mw.loader.load( 'test.implement.d' );
331 // @import (bug 31676)
332 QUnit.test( '.implement( styles has @import )', 7, function ( assert ) {
333 var isJsExecuted, $element,
334 done = assert.async();
337 'test.implement.import',
339 assert.strictEqual( isJsExecuted, undefined, 'script not executed multiple times' );
342 assert.equal( mw.loader.getState( 'test.implement.import' ), 'executing', 'module state during implement() script execution' );
344 $element = $( '<div class="mw-test-implement-import">Foo bar</div>' ).appendTo( '#qunit-fixture' );
346 assert.equal( mw.msg( 'test-foobar' ), 'Hello Foobar, $1!', 'messages load before script execution' );
348 assertStyleAsync( assert, $element, 'float', 'right', function () {
349 assert.equal( $element.css( 'text-align' ), 'center',
350 'CSS styles after the @import rule are working'
359 + urlStyleTest( '.mw-test-implement-import', 'float', 'right' )
361 + '.mw-test-implement-import { text-align: center; }'
365 'test-foobar': 'Hello Foobar, $1!'
369 mw.loader.using( 'test.implement.import' ).always( function () {
370 assert.strictEqual( isJsExecuted, true, 'script executed' );
371 assert.equal( mw.loader.getState( 'test.implement.import' ), 'ready', 'module state after script execution' );
375 QUnit.test( '.implement( dependency with styles )', 4, function ( assert ) {
376 var $element = $( '<div class="mw-test-implement-e"></div>' ).appendTo( '#qunit-fixture' ),
377 $element2 = $( '<div class="mw-test-implement-e2"></div>' ).appendTo( '#qunit-fixture' );
380 $element.css( 'float' ),
385 $element2.css( 'float' ),
390 mw.loader.register( [
391 [ 'test.implement.e', '0', [ 'test.implement.e2' ] ],
392 [ 'test.implement.e2', '0' ]
399 $element.css( 'float' ),
401 'Depending module\'s style is applied'
405 all: '.mw-test-implement-e { float: right; }'
413 $element2.css( 'float' ),
415 'Dependency\'s style is applied'
419 all: '.mw-test-implement-e2 { float: left; }'
423 return mw.loader.using( 'test.implement.e' );
426 QUnit.test( '.implement( only scripts )', 1, function ( assert ) {
427 mw.loader.implement( 'test.onlyscripts', function () {} );
428 assert.strictEqual( mw.loader.getState( 'test.onlyscripts' ), 'ready' );
431 QUnit.test( '.implement( only messages )', 2, function ( assert ) {
432 assert.assertFalse( mw.messages.exists( 'bug_29107' ), 'Verify that the test message doesn\'t exist yet' );
434 // jscs: disable requireCamelCaseOrUpperCaseIdentifiers
435 mw.loader.implement( 'test.implement.msgs', [], {}, { bug_29107: 'loaded' } );
436 // jscs: enable requireCamelCaseOrUpperCaseIdentifiers
438 return mw.loader.using( 'test.implement.msgs', function () {
439 assert.ok( mw.messages.exists( 'bug_29107' ), 'Bug 29107: messages-only module should implement ok' );
441 assert.ok( false, 'Error callback fired while implementing "test.implement.msgs" module' );
445 QUnit.test( '.implement( empty )', 1, function ( assert ) {
446 mw.loader.implement( 'test.empty' );
447 assert.strictEqual( mw.loader.getState( 'test.empty' ), 'ready' );
450 QUnit.test( 'Broken indirect dependency', 4, function ( assert ) {
451 // don't emit an error event
452 this.sandbox.stub( mw, 'track' );
454 mw.loader.register( [
455 [ 'test.module1', '0' ],
456 [ 'test.module2', '0', [ 'test.module1' ] ],
457 [ 'test.module3', '0', [ 'test.module2' ] ]
459 mw.loader.implement( 'test.module1', function () {
460 throw new Error( 'expected' );
462 assert.strictEqual( mw.loader.getState( 'test.module1' ), 'error', 'Expected "error" state for test.module1' );
463 assert.strictEqual( mw.loader.getState( 'test.module2' ), 'error', 'Expected "error" state for test.module2' );
464 assert.strictEqual( mw.loader.getState( 'test.module3' ), 'error', 'Expected "error" state for test.module3' );
466 assert.strictEqual( mw.track.callCount, 1 );
469 QUnit.test( 'Out-of-order implementation', 9, function ( assert ) {
470 mw.loader.register( [
471 [ 'test.module4', '0' ],
472 [ 'test.module5', '0', [ 'test.module4' ] ],
473 [ 'test.module6', '0', [ 'test.module5' ] ]
475 mw.loader.implement( 'test.module4', function () {} );
476 assert.strictEqual( mw.loader.getState( 'test.module4' ), 'ready', 'Expected "ready" state for test.module4' );
477 assert.strictEqual( mw.loader.getState( 'test.module5' ), 'registered', 'Expected "registered" state for test.module5' );
478 assert.strictEqual( mw.loader.getState( 'test.module6' ), 'registered', 'Expected "registered" state for test.module6' );
479 mw.loader.implement( 'test.module6', function () {} );
480 assert.strictEqual( mw.loader.getState( 'test.module4' ), 'ready', 'Expected "ready" state for test.module4' );
481 assert.strictEqual( mw.loader.getState( 'test.module5' ), 'registered', 'Expected "registered" state for test.module5' );
482 assert.strictEqual( mw.loader.getState( 'test.module6' ), 'loaded', 'Expected "loaded" state for test.module6' );
483 mw.loader.implement( 'test.module5', function () {} );
484 assert.strictEqual( mw.loader.getState( 'test.module4' ), 'ready', 'Expected "ready" state for test.module4' );
485 assert.strictEqual( mw.loader.getState( 'test.module5' ), 'ready', 'Expected "ready" state for test.module5' );
486 assert.strictEqual( mw.loader.getState( 'test.module6' ), 'ready', 'Expected "ready" state for test.module6' );
489 QUnit.test( 'Missing dependency', 13, function ( assert ) {
490 mw.loader.register( [
491 [ 'test.module7', '0' ],
492 [ 'test.module8', '0', [ 'test.module7' ] ],
493 [ 'test.module9', '0', [ 'test.module8' ] ]
495 mw.loader.implement( 'test.module8', function () {} );
496 assert.strictEqual( mw.loader.getState( 'test.module7' ), 'registered', 'Expected "registered" state for test.module7' );
497 assert.strictEqual( mw.loader.getState( 'test.module8' ), 'loaded', 'Expected "loaded" state for test.module8' );
498 assert.strictEqual( mw.loader.getState( 'test.module9' ), 'registered', 'Expected "registered" state for test.module9' );
499 mw.loader.state( 'test.module7', 'missing' );
500 assert.strictEqual( mw.loader.getState( 'test.module7' ), 'missing', 'Expected "missing" state for test.module7' );
501 assert.strictEqual( mw.loader.getState( 'test.module8' ), 'error', 'Expected "error" state for test.module8' );
502 assert.strictEqual( mw.loader.getState( 'test.module9' ), 'error', 'Expected "error" state for test.module9' );
503 mw.loader.implement( 'test.module9', function () {} );
504 assert.strictEqual( mw.loader.getState( 'test.module7' ), 'missing', 'Expected "missing" state for test.module7' );
505 assert.strictEqual( mw.loader.getState( 'test.module8' ), 'error', 'Expected "error" state for test.module8' );
506 assert.strictEqual( mw.loader.getState( 'test.module9' ), 'error', 'Expected "error" state for test.module9' );
510 assert.ok( false, 'Success fired despite missing dependency' );
511 assert.ok( true, 'QUnit expected() count dummy' );
513 function ( e, dependencies ) {
514 assert.strictEqual( $.isArray( dependencies ), true, 'Expected array of dependencies' );
515 assert.deepEqual( dependencies, [ 'test.module7' ], 'Error callback called with module test.module7' );
521 assert.ok( false, 'Success fired despite missing dependency' );
522 assert.ok( true, 'QUnit expected() count dummy' );
524 function ( e, dependencies ) {
525 assert.strictEqual( $.isArray( dependencies ), true, 'Expected array of dependencies' );
529 [ 'test.module7', 'test.module8', 'test.module9' ],
530 'Error callback called with all three modules as dependencies'
536 QUnit.test( 'Dependency handling', 5, function ( assert ) {
537 var done = assert.async();
538 mw.loader.register( [
539 // [module, version, dependencies, group, source]
540 [ 'testMissing', '1', [], null, 'testloader' ],
541 [ 'testUsesMissing', '1', [ 'testMissing' ], null, 'testloader' ],
542 [ 'testUsesNestedMissing', '1', [ 'testUsesMissing' ], null, 'testloader' ]
545 function verifyModuleStates() {
546 assert.equal( mw.loader.getState( 'testMissing' ), 'missing', 'Module not known to server must have state "missing"' );
547 assert.equal( mw.loader.getState( 'testUsesMissing' ), 'error', 'Module with missing dependency must have state "error"' );
548 assert.equal( mw.loader.getState( 'testUsesNestedMissing' ), 'error', 'Module with indirect missing dependency must have state "error"' );
551 mw.loader.using( [ 'testUsesNestedMissing' ],
553 assert.ok( false, 'Error handler should be invoked.' );
554 assert.ok( true ); // Dummy to reach QUnit expect()
556 verifyModuleStates();
560 function ( e, badmodules ) {
561 assert.ok( true, 'Error handler should be invoked.' );
562 // As soon as server spits out state('testMissing', 'missing');
563 // it will bubble up and trigger the error callback.
564 // Therefor the badmodules array is not testUsesMissing or testUsesNestedMissing.
565 assert.deepEqual( badmodules, [ 'testMissing' ], 'Bad modules as expected.' );
567 verifyModuleStates();
574 QUnit.test( 'Skip-function handling', 5, function ( assert ) {
575 mw.loader.register( [
576 // [module, version, dependencies, group, source, skip]
577 [ 'testSkipped', '1', [], null, 'testloader', 'return true;' ],
578 [ 'testNotSkipped', '1', [], null, 'testloader', 'return false;' ],
579 [ 'testUsesSkippable', '1', [ 'testSkipped', 'testNotSkipped' ], null, 'testloader' ]
582 function verifyModuleStates() {
583 assert.equal( mw.loader.getState( 'testSkipped' ), 'ready', 'Module is ready when skipped' );
584 assert.equal( mw.loader.getState( 'testNotSkipped' ), 'ready', 'Module is ready when not skipped but loaded' );
585 assert.equal( mw.loader.getState( 'testUsesSkippable' ), 'ready', 'Module is ready when skippable dependencies are ready' );
588 return mw.loader.using( [ 'testUsesSkippable' ],
590 assert.ok( true, 'Success handler should be invoked.' );
591 assert.ok( true ); // Dummy to match error handler and reach QUnit expect()
593 verifyModuleStates();
595 function ( e, badmodules ) {
596 assert.ok( false, 'Error handler should not be invoked.' );
597 assert.deepEqual( badmodules, [], 'Bad modules as expected.' );
599 verifyModuleStates();
604 QUnit.asyncTest( '.load( "//protocol-relative" ) - T32825', 2, function ( assert ) {
605 // This bug was actually already fixed in 1.18 and later when discovered in 1.17.
606 // Test is for regressions!
608 // Forge a URL to the test callback script
609 var target = QUnit.fixurl(
610 mw.config.get( 'wgServer' ) + mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/qunitOkCall.js'
613 // Confirm that mw.loader.load() works with protocol-relative URLs
614 target = target.replace( /https?:/, '' );
616 assert.equal( target.slice( 0, 2 ), '//',
617 'URL must be relative to test relative URLs!'
621 // The target calls QUnit.start
622 mw.loader.load( target );
625 QUnit.asyncTest( '.load( "/absolute-path" )', 2, function ( assert ) {
626 // Forge a URL to the test callback script
627 var target = QUnit.fixurl(
628 mw.config.get( 'wgScriptPath' ) + '/tests/qunit/data/qunitOkCall.js'
631 // Confirm that mw.loader.load() works with absolute-paths (relative to current hostname)
632 assert.equal( target.slice( 0, 1 ), '/', 'URL is relative to document root' );
635 // The target calls QUnit.start
636 mw.loader.load( target );
639 QUnit.test( 'Empty string module name - T28804', function ( assert ) {
642 assert.strictEqual( mw.loader.getState( '' ), null, 'State (unregistered)' );
644 mw.loader.register( '', 'v1' );
645 assert.strictEqual( mw.loader.getState( '' ), 'registered', 'State (registered)' );
646 assert.strictEqual( mw.loader.getVersion( '' ), 'v1', 'Version' );
648 mw.loader.implement( '', function () {
652 return mw.loader.using( '', function () {
653 assert.strictEqual( done, true, 'script ran' );
654 assert.strictEqual( mw.loader.getState( '' ), 'ready', 'State (ready)' );
658 QUnit.test( 'Executing race - T112232', 2, function ( assert ) {
661 // The red herring schedules its CSS buffer first. In T112232, a bug in the
662 // state machine would cause the job for testRaceLoadMe to run with an earlier job.
664 'testRaceRedHerring',
666 { css: [ '.mw-testRaceRedHerring {}' ] }
673 { css: [ '.mw-testRaceLoadMe { float: left; }' ] }
676 mw.loader.load( [ 'testRaceRedHerring', 'testRaceLoadMe' ] );
677 return mw.loader.using( 'testRaceLoadMe', function () {
678 assert.strictEqual( done, true, 'script ran' );
679 assert.strictEqual( mw.loader.getState( 'testRaceLoadMe' ), 'ready', 'state' );
683 QUnit.test( 'Stale response caching - T117587', function ( assert ) {
685 mw.loader.store.enabled = true;
686 mw.loader.register( 'test.stale', 'v2' );
687 assert.strictEqual( mw.loader.store.get( 'test.stale' ), false, 'Not in store' );
689 mw.loader.implement( 'test.stale@v1', function () {
693 return mw.loader.using( 'test.stale' )
695 assert.strictEqual( count, 1 );
696 // After implementing, registry contains version as implemented by the response.
697 assert.strictEqual( mw.loader.getVersion( 'test.stale' ), 'v1', 'Override version' );
698 assert.strictEqual( mw.loader.getState( 'test.stale' ), 'ready' );
699 assert.ok( mw.loader.store.get( 'test.stale' ), 'In store' );
702 // Reset run time, but keep mw.loader.store
703 mw.loader.moduleRegistry[ 'test.stale' ].script = undefined;
704 mw.loader.moduleRegistry[ 'test.stale' ].state = 'registered';
705 mw.loader.moduleRegistry[ 'test.stale' ].version = 'v2';
707 // Module was stored correctly as v1
708 // On future navigations, it will be ignored until evicted
709 assert.strictEqual( mw.loader.store.get( 'test.stale' ), false, 'Not in store' );
713 QUnit.test( 'Stale response caching - backcompat', function ( assert ) {
715 mw.loader.store.enabled = true;
716 mw.loader.register( 'test.stalebc', 'v2' );
717 assert.strictEqual( mw.loader.store.get( 'test.stalebc' ), false, 'Not in store' );
719 mw.loader.implement( 'test.stalebc', function () {
723 return mw.loader.using( 'test.stalebc' )
725 assert.strictEqual( count, 1 );
726 assert.strictEqual( mw.loader.getState( 'test.stalebc' ), 'ready' );
727 assert.ok( mw.loader.store.get( 'test.stalebc' ), 'In store' );
730 // Reset run time, but keep mw.loader.store
731 mw.loader.moduleRegistry[ 'test.stalebc' ].script = undefined;
732 mw.loader.moduleRegistry[ 'test.stalebc' ].state = 'registered';
733 mw.loader.moduleRegistry[ 'test.stalebc' ].version = 'v2';
735 // Legacy behaviour is storing under the expected version,
736 // which woudl lead to whitewashing and stale values (T117587).
737 assert.ok( mw.loader.store.get( 'test.stalebc' ), 'In store' );
741 QUnit.test( 'require()', 6, function ( assert ) {
742 mw.loader.register( [
743 [ 'test.require1', '0' ],
744 [ 'test.require2', '0' ],
745 [ 'test.require3', '0' ],
746 [ 'test.require4', '0', [ 'test.require3' ] ]
748 mw.loader.implement( 'test.require1', function () {} );
749 mw.loader.implement( 'test.require2', function ( $, jQuery, require, module ) {
752 mw.loader.implement( 'test.require3', function ( $, jQuery, require, module ) {
753 module.exports = function () {
754 return 'hello world';
757 mw.loader.implement( 'test.require4', function ( $, jQuery, require, module ) {
758 var other = require( 'test.require3' );
765 return mw.loader.using( [ 'test.require1', 'test.require2', 'test.require3', 'test.require4' ] )
766 .then( function ( require ) {
767 var module1, module2, module3, module4;
769 module1 = require( 'test.require1' );
770 module2 = require( 'test.require2' );
771 module3 = require( 'test.require3' );
772 module4 = require( 'test.require4' );
774 assert.strictEqual( typeof module1, 'object', 'export of module with no export' );
775 assert.strictEqual( module2, 1, 'export a number' );
776 assert.strictEqual( module3(), 'hello world', 'export a function' );
777 assert.strictEqual( typeof module4.pizza, 'function', 'export an object' );
778 assert.strictEqual( module4.pizza(), 'hello world', 'module can require other modules' );
780 assert.throws( function () {
781 require( '_badmodule' );
782 }, /is not loaded/, 'Requesting non-existent modules throws error.' );
786 QUnit.test( 'require() in debug mode', function ( assert ) {
787 var path = mw.config.get( 'wgScriptPath' );
788 mw.loader.register( [
789 [ 'test.require.define', '0' ],
790 [ 'test.require.callback', '0', [ 'test.require.define' ] ]
792 mw.loader.implement( 'test.require.callback', [ QUnit.fixurl( path + '/tests/qunit/data/requireCallMwLoaderTestCallback.js' ) ] );
793 mw.loader.implement( 'test.require.define', [ QUnit.fixurl( path + '/tests/qunit/data/defineCallMwLoaderTestCallback.js' ) ] );
795 return mw.loader.using( 'test.require.callback' ).then( function ( require ) {
796 var cb = require( 'test.require.callback' );
797 assert.strictEqual( cb.immediate, 'Defined.', 'module.exports and require work in debug mode' );
798 // Must use try-catch because cb.later() will throw if require is undefined,
799 // which doesn't work well inside Deferred.then() when using jQuery 1.x with QUnit
801 assert.strictEqual( cb.later(), 'Defined.', 'require works asynchrously in debug mode' );
803 assert.equal( null, String( e ), 'require works asynchrously in debug mode' );
806 assert.ok( false, 'Error callback fired while loader.using "test.require.callback" module' );
810 }( mediaWiki, jQuery ) );