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VisualEditor DataModel ResourceQueue tests. * * @copyright 2011-2018 VisualEditor Team and others; see http://ve.mit-license.org / QUnit.module( 'mediawiki.widgets.APIResultsQueue' ); ( function () { var itemCounter, FullResourceProvider, EmptyResourceProvider, SingleResultResourceProvider; itemCounter = 0; FullResourceProvider = function ( config ) { this.timer = null; this.responseDelay = 1; // Inheritance FullResourceProvider.super.call( this, '', config ); }; EmptyResourceProvider = function ( config ) { this.timer = null; this.responseDelay = 1; // Inheritance EmptyResourceProvider.super.call( this, '', config ); }; SingleResultResourceProvider = function ( config ) { this.timer = null; this.responseDelay = 1; // Inheritance SingleResultResourceProvider.super.call( this, '', config ); }; OO.inheritClass( FullResourceProvider, mw.widgets.APIResultsProvider ); OO.inheritClass( EmptyResourceProvider, mw.widgets.APIResultsProvider ); OO.inheritClass( SingleResultResourceProvider, mw.widgets.APIResultsProvider ); FullResourceProvider.prototype.getResults = function ( howMany ) { var i, timer, result = [], deferred = $.Deferred(); for ( i = itemCounter; i < itemCounter + howMany; i++ ) { result.push( 'result ' + ( i + 1 ) ); } itemCounter = i; timer = setTimeout( function () { // Always resolve with some values deferred.resolve( result ); }, this.responseDelay ); return deferred.promise( { abort: function () { clearTimeout( timer ); } } ); }; EmptyResourceProvider.prototype.getResults = function () { var provider = this, deferred = $.Deferred(), timer = setTimeout( function () { provider.toggleDepleted( true ); // Always resolve with empty value deferred.resolve( [] ); }, this.responseDelay ); return deferred.promise( { abort: function () { clearTimeout( timer ); } } ); }; SingleResultResourceProvider.prototype.getResults = function ( howMany ) { var timer, provider = this, deferred = $.Deferred(); timer = setTimeout( function () { provider.toggleDepleted( howMany > 1 ); // Always resolve with one value deferred.resolve( [ 'one result (' + ( itemCounter++ + 1 ) + ')' ] ); }, this.responseDelay ); return deferred.promise( { abort: function () { clearTimeout( timer ); } } ); }; / Tests / QUnit.test( 'Query providers', function ( assert ) { var done = assert.async(), providers = [ new FullResourceProvider(), new EmptyResourceProvider(), new SingleResultResourceProvider() ], queue = new mw.widgets.APIResultsQueue( { threshold: 2 } ); // Add providers to queue queue.setProviders( providers ); // Set parameters and fetch queue.setParams( { foo: 'bar' } ); queue.get( 10 ) .then( function ( data ) { // Check that we received all requested results assert.strictEqual( data.length, 10, 'Query 1: Results received.' ); // We've asked for 10 items + 2 threshold from all providers. // Provider 1 returned 12 results // Provider 2 returned 0 results // Provider 3 returned 1 results // Overall 13 results. 10 were retrieved. 3 left in queue. assert.strictEqual( queue.getQueueSize(), 3, 'Query 1: Remaining queue size.' ); // Check if sources are depleted assert.strictEqual( providers[ 0 ].isDepleted(), false, 'Query 1: Full provider not depleted.' ); assert.strictEqual( providers[ 1 ].isDepleted(), true, 'Query 1: Empty provider is depleted.' ); assert.strictEqual( providers[ 2 ].isDepleted(), true, 'Query 1: Single result provider is depleted.' ); // Ask for more results return queue.get( 10 ); } ) .then( function ( data1 ) { // This time, only provider 1 was queried, because the other // two were marked as depleted. // We asked for 10 items // * There are currently 3 items in the queue // * The queue queried provider #1 for 12 items // * The queue returned 10 results as requested // * 5 results are now left in the queue. assert.strictEqual( data1.length, 10, 'Query 1: Second set of results received.' ); assert.strictEqual( queue.getQueueSize(), 5, 'Query 1: Remaining queue size.' ); // Change the query queue.setParams( { foo: 'baz' } ); // Check if sources are depleted assert.strictEqual( providers[ 0 ].isDepleted(), false, 'Query 2: Full provider not depleted.' ); assert.strictEqual( providers[ 1 ].isDepleted(), false, 'Query 2: Empty provider not depleted.' ); assert.strictEqual( providers[ 2 ].isDepleted(), false, 'Query 2: Single result provider not depleted.' ); return queue.get( 10 ); } ) .then( function ( data2 ) { // This should be the same as the very first result assert.strictEqual( data2.length, 10, 'Query 2: Results received.' ); assert.strictEqual( queue.getQueueSize(), 3, 'Query 2: Remaining queue size.' ); // Check if sources are depleted assert.strictEqual( providers[ 0 ].isDepleted(), false, 'Query 2: Full provider not depleted.' ); assert.strictEqual( providers[ 1 ].isDepleted(), true, 'Query 2: Empty provider is not depleted.' ); assert.strictEqual( providers[ 2 ].isDepleted(), true, 'Query 2: Single result provider is not depleted.' ); } ) // Finish the async test .then( done ); } ); QUnit.test( 'Abort providers', function ( assert ) { var done = assert.async(), completed = false, biggerQueue = new mw.widgets.APIResultsQueue( { threshold: 5 } ), providers = [ new FullResourceProvider(), new EmptyResourceProvider(), new SingleResultResourceProvider() ]; // Make the delay higher providers.forEach( function ( provider ) { provider.responseDelay = 3; } ); // Add providers to queue biggerQueue.setProviders( providers ); biggerQueue.setParams( { foo: 'bar' } ); biggerQueue.get( 100 ) .always( function () { // This should only run if the promise wasn't aborted completed = true; } ); // Make the delay higher providers.forEach( function ( provider ) { provider.responseDelay = 5; } ); biggerQueue.setParams( { foo: 'baz' } ); biggerQueue.get( 10 ) .then( function () { assert.strictEqual( completed, false, 'Provider promises aborted.' ); } ) // Finish the async test .then( done ); } ); }() );

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