mediawiki-extensions-MultimediaViewer/tests/qunit/mmv.test.js

( function ( mw, $ ) {
	var logTests = [
			[ 'thumbnail-link-click', 'User clicked on thumbnail to open lightbox.' ],
			[ 'enlarge-link-click', 'User clicked on enlarge link to open lightbox.' ],
			[ 'fullscreen-link-click', 'User clicked on fullscreen button in lightbox.' ],
			[ 'defullscreen-link-click', 'User clicked on button to return to normal lightbox view.' ],
			[ 'close-link-click', 'User clicked on the lightbox close button.' ],
			[ 'site-link-click', 'User clicked on the link to the file description page.' ],
			[ 'Something happened', 'Something happened' ]
		],

		profileTests = [
			[ 'image-load', 'Profiling image load with ID $1', 'Finished image load with ID $1 in $2 milliseconds', 200, 200, 120348, 'jpg' ],
			[ 'image-resize', 'Profiling image resize with ID $1', 'Finished image resize with ID $1 in $2 milliseconds', 400, 400, 500000, 'png' ],
			[ 'metadata-fetch', 'Profiling image metadata fetch with ID $1', 'Finished image metadata fetch with ID $1 in $2 milliseconds' ],
			[ 'gender-fetch', 'Profiling uploader gender fetch with ID $1', 'Finished uploader gender fetch with ID $1 in $2 milliseconds' ]
		];


	QUnit.module( 'mmv', QUnit.newMwEnvironment() );

	function createGallery( imageSrc ) {
		var div = $( '<div>' ).addClass( 'gallery' ).appendTo( '#qunit-fixture' ),
				link = $( '<a>' ).addClass( 'image' ).appendTo( div );
		$( '<img>' ).attr( 'src',  ( imageSrc || 'thumb.jpg' ) ).appendTo( link );

		return div;
	}

	function createThumb( imageSrc, caption ) {
		var div = $( '<div>' ).addClass( 'thumb' ).appendTo( '#qunit-fixture' ),
			link = $( '<a>' ).addClass( 'image' ).appendTo( div );

		$( '<div>' ).addClass( 'thumbcaption' ).appendTo( div ).text( caption );
		$( '<img>' ).attr( 'src', ( imageSrc || 'thumb.jpg' ) ).appendTo( link );

		return div;
	}

	QUnit.test( 'Check viewer invoked when clicking on an legit image links', 4, function ( assert ) {
		// TODO: Is <div class="gallery"><span class="image"><img/></span></div> valid ???
		var div, link, link2, link3, viewer;

		// Create viewer, no images in page.
		viewer = new mw.MultimediaViewer();

		assert.strictEqual( viewer.lightbox, null, 'There are not legit links, a lightbox should not be created.' );

		// Create gallery with legit link image
		div = createGallery();
		link = div.find( 'a.image' );

		// Legit isolated thumbnail
		link2 = $( '<a>' ).addClass( 'image' ).appendTo( '#qunit-fixture' );
		$( '<img>' ).attr( 'src',  'thumb2.jpg' ).appendTo( link2 );

		// Non-legit fragment
		link3 = $( '<a>' ).addClass( 'noImage' ).appendTo( div );
		$( '<img>' ).attr( 'src',  'thumb3.jpg' ).appendTo( link3 );

		// Create another viewer so link analysis happens now that we have some images.
		viewer = new mw.MultimediaViewer();

		// Mock clickLink callback
		viewer.clickLinkCallback = function () {
			assert.ok( true, 'click callback called.' );
		};

		// Click on legit link
		link.trigger( 'click' );

		// Click on legit link
		link2.trigger( 'click' );

		// Click on non-legit link
		link3.trigger( 'click' );

		assert.notStrictEqual( viewer.lightbox, null, 'There are legit links, a lightbox should be created.' );

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'Skip images with invalid extensions', 1, function ( assert ) {
		var div, link, viewer;

		// Create gallery with image that has invalid name extension
		div = createGallery( 'thumb.badext' );
		link = div.find( 'a.image' );

		// Create viewer so link analysis happens now that we have some images.
		viewer = new mw.MultimediaViewer();

		// Mock clickLink callback
		viewer.clickLinkCallback = function () {
			assert.ok( false, 'Wrong, handling an image with bad extension !' );
		};

		// Click on legit link with wrong image extension
		link.trigger( 'click' );

		assert.strictEqual( viewer.lightbox, null, 'There are not legit links, a lightbox should not be created.' );

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'Accept only left clicks without modifier keys, skip the rest', 1, function ( assert ) {
		var div, link, viewer, leftClick, ctrlLeftClick, rightClick;

		// Create gallery with image that has invalid name extension
		div = createGallery();
		link = div.find( 'a.image' );

		// Create viewer so link analysis happens now that we have some images.
		viewer = new mw.MultimediaViewer();

		// Mock loadImage() function call
		viewer.loadImage = function () {
			assert.ok( true, 'Handling legit click.' );
		};

		leftClick = $.Event( 'click' );
		leftClick.which = 1;

		// Handle valid left click, it should try to load the image
		link.trigger( leftClick );

		ctrlLeftClick = $.Event( 'click' );
		ctrlLeftClick.which = 1;
		ctrlLeftClick.ctrlKey = true;

		// Skip Ctrl-left-click, no image is loaded
		link.trigger( ctrlLeftClick );

		rightClick = $.Event( 'click' );
		rightClick.which = 2;

		// Skip invalid right click, no image is loaded
		link.trigger( rightClick );

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'Do not load the resized image if no data returning from the api', 1, function ( assert ) {
		var ui,
			data,
			viewer = new mw.MultimediaViewer();

		// Calling loadResizedImage() with empty/undefined data should not fail.
		viewer.loadResizedImage( ui, data );

		assert.ok( true, 'Resized image is not replaced since we have not data.' );

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'Logging works as expected', 4 * logTests.length, function ( assert ) {
		var i, test, msgName, expectedMsg,
			viewer = new mw.MultimediaViewer(),
			backupLog = mw.log,
			backupEventLog = mw.eventLog;

		function checkLogging( msg ) {
			assert.strictEqual( msg, expectedMsg, 'Message ' + msgName + ' is logged correctly.' );
		}

		function checkLoggingEventLog( type, event ) {
			assert.strictEqual( type, 'MediaViewer', 'Eventlogging gets the right event type for message ' + msgName + '.' );
			assert.strictEqual( event.version, '1.1', 'Eventlogging gets the right version number for message ' + msgName + '.' );
			assert.strictEqual( event.action, msgName, 'Eventlogging gets the right action name for message ' + msgName + '.' );
		}

		mw.log = checkLogging;
		mw.eventLog = mw.eventLog || {};
		mw.eventLog.logEvent = checkLoggingEventLog;

		for ( i = 0; i < logTests.length; i++ ) {
			test = logTests[i];
			msgName = test[0];
			expectedMsg = test[1];
			viewer.log( msgName );
		}

		mw.log = backupLog;
		mw.eventLog = backupEventLog;

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'Profiling works as expected', ( 12 * profileTests.length ), function ( assert ) {
		var i, pid, test, msgName, expectedMsg, expectedImageWidth,
			expectedFileSize, expectedFileType, expectedImageHeight,
			viewer = new mw.MultimediaViewer(),
			backupLog = mw.log,
			backupEventLog = mw.eventLog;

		function checkLogging( msg ) {
			assert.strictEqual( msg, expectedMsg, 'Message ' + msgName + ' is logged correctly.' );
		}

		function checkProfileEventLog( type, msg ) {
			assert.strictEqual( type, 'MediaViewerPerf', 'EventLogging gets the right event type for profile message ' + msgName + '.' );
			assert.strictEqual( msg.version, '1.1', 'EventLogging gets the right version number for profile message ' + msgName + '.' );
			assert.strictEqual( msg.action, msgName, 'EventLogging gets the right action name for message ' + msgName + '.' );
			assert.strictEqual( msg.start, undefined, 'MultimediaViewer#profileEnd deletes the event start time from ' + msgName + ' profiles sent to EventLogging.' );
			assert.strictEqual( msg.fileSize, expectedFileSize, 'EventLogging sees the correct file size for ' + msgName + ' profiles.' );
			assert.strictEqual( msg.fileType, expectedFileType, 'EventLogging sees the correct filetype for ' + msgName + ' profiles.' );
			assert.strictEqual( msg.imageHeight, expectedImageHeight, 'EventLogging sees the correct image height for ' + msgName + ' profiles.' );
			assert.strictEqual( msg.imageWidth, expectedImageWidth, 'EventLogging sees the correct image width for ' + msgName + ' profiles.' );
			assert.strictEqual( msg.userAgent, navigator.userAgent, 'EventLogging logs the browser user-agent string for ' + msgName + ' profiles.' );
		}

		mw.log = checkLogging;
		mw.eventLog = mw.eventLog || {};
		mw.eventLog.logEvent = checkProfileEventLog;

		for ( i = 0; i < profileTests.length; i++ ) {
			test = profileTests[i];
			msgName = test[0];

			expectedMsg = test[1].replace( /\$1/g, i );
			expectedImageWidth = test[3];
			expectedImageHeight = test[4];
			expectedFileSize = test[5];
			expectedFileType = test[6];
			pid = viewer.profileStart( msgName, { width: expectedImageWidth, height: expectedImageHeight, filesize: expectedFileSize }, expectedFileType );
			assert.strictEqual( pid, i, 'nonce-style profile IDs come in order.' );

			expectedMsg = test[2].replace( /\$1/g, i ).replace( /\$2/g, 0 );
			viewer.profileEnd( pid, true );
		}

		mw.log = backupLog;
		mw.eventLog = backupEventLog;

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.asyncTest( 'Make sure we get sane values for the eventlogging timing', 2, function ( assert ) {
		var pid,
			continuing = true,
			viewer = new mw.MultimediaViewer(),
			backupEventLog = mw.eventLog;

		mw.eventLog = {
			logEvent: function ( schema, msg ) {
				// msg.filesize has whatever value we set the timeout for.
				assert.ok( msg.milliseconds >= msg.fileSize, 'Right amount of time elapsed for the ' + ( continuing ? 'first' : 'second' ) + ' profile.' );
				if ( continuing ) {
					continuing = false;
					pid = viewer.profileStart( 'image-resize', { width: 20, height: 20, filesize: 80 }, 'png' );
					window.setTimeout( function () { viewer.profileEnd( pid ); }, 80 );
				} else {
					mw.eventLog = backupEventLog;
					QUnit.start();

					// Clean up the viewer, to avoid seeing it catch events when running other tests
					mw.mmvTestHelpers.resetViewer();
				}
			}
		};

		pid = viewer.profileStart( 'image-load', { width: 10, height: 10, filesize: 40 }, 'jpg' );
		window.setTimeout( function () { viewer.profileEnd( pid ); }, 40 );
	} );

	QUnit.test( 'Ensure that the click callback is getting the appropriate initial value for image loading', 1, function ( assert ) {
		var imgSrc = '300px-valid.jpg',
			div = createGallery( imgSrc ),
			link = div.find( 'a.image' ),
			viewer = new mw.MultimediaViewer();

		viewer.clickLinkCallback = function ( e, clickedEle, $thumbContain ) {
			assert.strictEqual( $thumbContain.find( 'img' ).prop( 'src' ).split( '/' ).pop(), imgSrc, 'The URL being used for the initial image load is correct' );
		};

		link.trigger( 'click' );

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'Validate new LightboxImage object has sane constructor parameters', 6, function ( assert ) {
		var viewer,
			backup = mw.MultimediaViewer.prototype.createNewImage,
			fname = 'valid',
			imgSrc = '/' + fname + '.jpg/300px-' + fname + '.jpg',
			imgRegex = new RegExp( imgSrc + '$' );

		createGallery( imgSrc );

		mw.MultimediaViewer.prototype.createNewImage = function ( fileLink, filePageLink, fileTitle, index, thumb, caption ) {
			assert.ok( fileLink.match( imgRegex ), 'Thumbnail URL used in creating new image object' );
			assert.strictEqual( filePageLink, '', 'File page link is sane when creating new image object' );
			assert.strictEqual( fileTitle.title, fname, 'Filename is correct when passed into new image constructor' );
			assert.strictEqual( index, 0, 'The only image we created in the gallery is set at index 0 in the images array' );
			assert.strictEqual( thumb.outerHTML, '<img src="' + imgSrc + '">', 'The image element passed in is the thumbnail we want.' );
			assert.strictEqual( caption, undefined, 'The caption does not get passed in for a gallery' );
		};

		viewer = new mw.MultimediaViewer();
		mw.MultimediaViewer.prototype.createNewImage = backup;

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'Validate new LightboxImage object has sane constructor parameters', 6, function ( assert ) {
		var viewer,
			backup = mw.MultimediaViewer.prototype.createNewImage,
			fname = 'valid',
			imgSrc = '/' + fname + '.jpg/300px-' + fname + '.jpg',
			imgRegex = new RegExp( imgSrc + '$' );

		createThumb( imgSrc, 'Blah blah' );

		mw.MultimediaViewer.prototype.createNewImage = function ( fileLink, filePageLink, fileTitle, index, thumb, caption ) {
			assert.ok( fileLink.match( imgRegex ), 'Thumbnail URL used in creating new image object' );
			assert.strictEqual( filePageLink, '', 'File page link is sane when creating new image object' );
			assert.strictEqual( fileTitle.title, fname, 'Filename is correct when passed into new image constructor' );
			assert.strictEqual( index, 0, 'The only image we created in the gallery is set at index 0 in the images array' );
			assert.strictEqual( thumb.outerHTML, '<img src="' + imgSrc + '">', 'The image element passed in is the thumbnail we want.' );
			assert.strictEqual( caption, 'Blah blah', 'The caption passed in is correct' );
		};

		viewer = new mw.MultimediaViewer();
		mw.MultimediaViewer.prototype.createNewImage = backup;

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'We get sane image sizes when we ask for them', 5, function ( assert ) {
		var viewer = new mw.MultimediaViewer();

		assert.strictEqual( viewer.findNextHighestImageSize( 200 ), 320, 'Low target size gives us lowest possible size bucket' );
		assert.strictEqual( viewer.findNextHighestImageSize( 320 ), 320, 'Asking for a bucket size gives us exactly that bucket size' );
		assert.strictEqual( viewer.findNextHighestImageSize( 320.00001 ), 640, 'Asking for greater than an image bucket definitely gives us the next size up' );
		assert.strictEqual( viewer.findNextHighestImageSize( 2000 ), 2560, 'The image bucketing also works on big screens' );
		assert.strictEqual( viewer.findNextHighestImageSize( 3000 ), 2880, 'The image bucketing also works on REALLY big screens' );

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'Metadata div is only animated once', 4, function ( assert ) {
		var viewer = new mw.MultimediaViewer(),
			backupAnimation = $.fn.animate,
			animationRan = false;

		$.fn.animate = function () {
			animationRan = true;
			return this;
		};

		viewer.animateMetadataDivOnce();
		assert.strictEqual( viewer.hasAnimatedMetadata, true, 'The first call to animateMetadataDivOnce set hasAnimatedMetadata to true' );
		assert.strictEqual( animationRan, true, 'The first call to animateMetadataDivOnce led to an animation' );

		animationRan = false;
		viewer.animateMetadataDivOnce();
		assert.strictEqual( viewer.hasAnimatedMetadata, true, 'The second call to animateMetadataDivOnce did not change the value of hasAnimatedMetadata' );
		assert.strictEqual( animationRan, false, 'The second call to animateMetadataDivOnce did not lead to an animation' );

		$.fn.animate = backupAnimation;

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'HTML whitelisting works', 2, function ( assert ) {
		var viewer = new mw.MultimediaViewer(),
			okhtml = '<a href="/wiki/Blah">Blah</a> blah blah',
			needswhitelisting = '<div>Blah<br />blah</div>',
			whitelisted = 'Blahblah',
			okjq = $.parseHTML( okhtml ),
			nwljq = $.parseHTML( needswhitelisting ),
			$sandbox = $( '<div>' );

		viewer.whitelistHtml( $sandbox.empty().append( okjq ) );
		assert.strictEqual( $sandbox.html(), okhtml, 'Whitelisted elements are let through.' );

		viewer.whitelistHtml( $sandbox.empty().append( nwljq ) );
		assert.strictEqual( $sandbox.html(), whitelisted, 'Not-whitelisted elements are removed.' );

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'The location data is set correctly', 11, function ( assert ) {
		var viewer,
			origlatitude = '39.40192938201',
			origlongitude = '-117.908329012',
			imageData = new mw.mmv.model.Image(
				mw.Title.newFromText( 'File:Foobar.jpg' ),
				10, 10, 10, 'image/jpeg', 'http://example.org', 'http://example.com',
				'example', 'tester', '2013-11-10', '2013-11-09', 'Blah blah blah',
				'A person', 'Another person', 'CC-BY-SA-3.0', origlatitude, origlongitude
			);

		createGallery();
		viewer = new mw.MultimediaViewer();

		viewer.lightbox.iface.setLocationData = function (
			latdeg, latmin, latsec, latmsg,
			longdeg, longmin, longsec, longmsg,
			latitude, longitude, langcode, titleText
		) {
			assert.strictEqual( latdeg, 39, 'Degree count is correct (latitude)' );
			assert.strictEqual( latmin, 24, 'Minute count is correct (latitude)' );
			assert.strictEqual( latsec, 6.95, 'Second count is correct (latitude)' );
			assert.strictEqual( latmsg, 'multimediaviewer-geoloc-north', 'Cardinal direction is correct (latitude)' );
			assert.strictEqual( longdeg, 117, 'Degree count is correct (longitude)' );
			assert.strictEqual( longmin, 54, 'Minute count is correct (longitude)' );
			assert.strictEqual( longsec, 29.98, 'Second count is correct (longitude)' );
			assert.strictEqual( longmsg, 'multimediaviewer-geoloc-west', 'Cardinal direction is correct (longitude)' );
			assert.strictEqual( latitude, origlatitude, 'Original latitude is passed in' );
			assert.strictEqual( longitude, origlongitude, 'Original longitude is passed in' );
			assert.strictEqual( titleText, 'Foobar.jpg', 'Filename is passed in correctly' );
		};

		viewer.setLocationData( imageData );

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'The location data is set correctly with weird values', 11, function ( assert ) {
		var viewer,
			origlatitude = '0',
			origlongitude = '0',
			imageData = new mw.mmv.model.Image(
				mw.Title.newFromText( 'File:Foobar.pdf.jpg' ),
				10, 10, 10, 'image/jpeg', 'http://example.org', 'http://example.com',
				'example', 'tester', '2013-11-10', '2013-11-09', 'Blah blah blah',
				'A person', 'Another person', 'CC-BY-SA-3.0', origlatitude, origlongitude
			);

		createGallery();
		viewer = new mw.MultimediaViewer();

		viewer.lightbox.iface.setLocationData = function (
			latdeg, latmin, latsec, latmsg,
			longdeg, longmin, longsec, longmsg,
			latitude, longitude, langcode, titleText
		) {
			assert.strictEqual( latdeg, 0, 'Degree count is correct (latitude)' );
			assert.strictEqual( latmin, 0, 'Minute count is correct (latitude)' );
			assert.strictEqual( latsec, 0, 'Second count is correct (latitude)' );
			assert.strictEqual( latmsg, 'multimediaviewer-geoloc-north', 'Cardinal direction is correct (latitude)' );
			assert.strictEqual( longdeg, 0, 'Degree count is correct (longitude)' );
			assert.strictEqual( longmin, 0, 'Minute count is correct (longitude)' );
			assert.strictEqual( longsec, 0, 'Second count is correct (longitude)' );
			assert.strictEqual( longmsg, 'multimediaviewer-geoloc-east', 'Cardinal direction is correct (longitude)' );
			assert.strictEqual( latitude, origlatitude, 'Original latitude is passed in' );
			assert.strictEqual( longitude, origlongitude, 'Original longitude is passed in' );
			assert.strictEqual( titleText, 'Foobar.pdf.jpg', 'Filename is passed in correctly' );
		};

		viewer.setLocationData( imageData );

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'The location data is not set if no value is passed in', 1, function ( assert ) {
		var viewer,
			called = false,
			imageData = new mw.mmv.model.Image(
				mw.Title.newFromText( 'File:Foobar.pdf.jpg' ),
				10, 10, 10, 'image/jpeg', 'http://example.org', 'http://example.com',
				'example', 'tester', '2013-11-10', '2013-11-09', 'Blah blah blah',
				'A person', 'Another person', 'CC-BY-SA-3.0'
			);

		createGallery();
		viewer = new mw.MultimediaViewer();

		viewer.lightbox.iface.setLocationData = function () {
			called = true;
		};

		viewer.setLocationData( imageData );

		assert.strictEqual( called, false, 'The interface data-setter method is not called if there are no coordinates available for the image.' );

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'getImageSizeApiArgs(): Limited by height and limited by width', 4, function ( assert ) {
		var widths,
			viewer = new mw.MultimediaViewer(),
			ui = new mw.LightboxInterface( viewer );

		// Fake thumbnail, width/height == 1.5
		ui.currentImage = {
			thumbnail: {
				height: 100,
				width: 150
			}
		};

		ui.attach( '#qunit-fixture' );

		// Fake viewport dimensions, width/height == 2.0, we are limited by height
		ui.$imageWrapper.height( 200 );
		ui.$imageWrapper.width( 400 );

		widths = viewer.getImageSizeApiArgs( ui );

		assert.strictEqual( widths.css, 150/100*200, 'Correct CSS width was computed.' );
		assert.strictEqual( widths.real, 320 * $.devicePixelRatio(), 'Correct real width was computed.' );

		// Fake viewport dimensions, width/height == 1.0, we are limited by width
		ui.$imageWrapper.height( 600 );
		ui.$imageWrapper.width( 600 );

		widths = viewer.getImageSizeApiArgs( ui );

		assert.strictEqual( widths.css, 600, 'Correct CSS width was computed.' );
		assert.strictEqual( widths.real, 640 * $.devicePixelRatio(), 'Correct real width was computed.' );

		ui.unattach();

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.asyncTest( 'loadAndSetImage(): Basic load', 9, function ( assert ) {
		var targetWidth,
			requestedWidth,
			profileEvent,
			pid = 4321,
			viewer = new mw.MultimediaViewer(),
			ui = new mw.LightboxInterface(),
			size = 120,
			width = 10,
			height = 11,
			imageUrl = 'http://en.wikipedia.org/w/skins/vector/images/search-ltr.png',
			imageData = new mw.mmv.model.Image(
				mw.Title.newFromText( 'File:Foobar.pdf.jpg' ),
				size, width, height, 'image/jpeg',
				imageUrl,
				'http://example.com',
				'example', 'tester', '2013-11-10', '2013-11-09', 'Blah blah blah',
				'A person', 'Another person', 'CC-BY-SA-3.0', 0, 0
			);

		// Assert funtions are called with correct data
		viewer.profileStart = function ( type, imgSize, fileType ) {
			assert.strictEqual( type, profileEvent, 'Correct event type for profile start.' );
			assert.strictEqual( imgSize.width, width, 'Correct width for profile start.' );
			assert.strictEqual( imgSize.height, height, 'Correct height for profile start.' );
			assert.strictEqual( imgSize.fileSize, size, 'Correct fileSize for profile start.' );
			assert.strictEqual( fileType, 'image/jpeg', 'Correct fileType for profile start.' );

			return pid;
		};
		viewer.profileEnd = function ( id ) {
			assert.strictEqual( id, pid, 'Correct pid to end profiling. Image loaded correctly.' );
			QUnit.start();
		};
		ui.replaceImageWith = function ( image ) {
			assert.strictEqual( image.src, imageUrl, 'Image to replace has correct "src" attribute.' );
			assert.strictEqual( image.width, targetWidth, 'Image to replace has correct "width" attribute.' );
		};
		viewer.updateControls = function () {
			assert.ok( true, 'Controls updated.' );
		};

		// Test case when image loaded is bigger than current area
		targetWidth = 8; // Current area < imageData.width
		requestedWidth = 640;
		profileEvent = 'image-load';
		viewer.loadAndSetImage( ui, imageData, targetWidth, requestedWidth, profileEvent );

		// Clean up the viewer, to avoid seeing it catch events when running other tests
		mw.mmvTestHelpers.resetViewer();
	} );

	QUnit.test( 'Hash handling', 5, function ( assert ) {
		var oldLoadImage = mw.mediaViewer.loadImage,
			oldLightbox = mw.mediaViewer.lightbox,
			imageSrc = 'Foo bar.jpg',
			image = { filePageTitle: new mw.Title( 'File:' + imageSrc ) };

		document.location.hash = '';

		mw.mediaViewer.lightbox = { iface: { unattach: function() {
			assert.ok( true, 'Interface unattached' );
		} } };

		// Verify that passing an invalid mmv hash triggers unattach()
		document.location.hash = 'Foo';

		mw.mediaViewer.lightbox = { images: [ image ] };

		$( '#qunit-fixture' ).append( '<a class="image"><img src="' + imageSrc + '"></a>' );

		mw.mediaViewer.loadImage = function( img, src ) {
			assert.strictEqual( img, image, 'The image object matches' );
			assert.ok( src.match( encodeURIComponent( imageSrc ) ), 'The image url matches' );
		};

		// Open a valid mmv hash link and check that the right image is requested.
		// imageSrc contains a space without any encoding on purpose
		document.location.hash = 'mediaviewer/File:' + imageSrc + '/0';

		// Reset the hash, because for some browsers switching from the non-URI-encoded to
		// the non-URI-encoded version of the same text with a space will not trigger a hash change
		document.location.hash = '';

		// Try again with an URI-encoded imageSrc containing a space
		document.location.hash = 'mediaviewer/File:' + encodeURIComponent( imageSrc ) + '/0';

		mw.mediaViewer.lightbox = oldLightbox;
		mw.mediaViewer.loadImage = oldLoadImage;

		document.location.hash = '';
	} );
}( mediaWiki, jQuery ) );