diff --git a/test/unit/attributes.js b/test/unit/attributes.js
@@ -93,12 +93,12 @@ QUnit.test( "attr(String)", function( assert ) {
 	assert.equal( jQuery( "#area1" ).attr( "maxLength" ), "30", "Check for maxLength attribute" );
 
 	// using innerHTML in IE causes href attribute to be serialized to the full path
-	jQuery( "<a/>" ).attr( {
+	jQuery( "<a></a>" ).attr( {
 		"id": "tAnchor5",
 		"href": "#5"
 	} ).appendTo( "#qunit-fixture" );
 	assert.equal( jQuery( "#tAnchor5" ).attr( "href" ), "#5", "Check for non-absolute href (an anchor)" );
-	jQuery( "<a id='tAnchor6' href='#5' />" ).appendTo( "#qunit-fixture" );
+	jQuery( "<a id='tAnchor6' href='#5'></a>" ).appendTo( "#qunit-fixture" );
 	assert.equal( jQuery( "#tAnchor5" ).prop( "href" ), jQuery( "#tAnchor6" ).prop( "href" ), "Check for absolute href prop on an anchor" );
 
 	jQuery( "<script type='jquery/test' src='#5' id='scriptSrc'></script>" ).appendTo( "#qunit-fixture" );
@@ -136,7 +136,7 @@ QUnit.test( "attr(String)", function( assert ) {
 	assert.equal( $img.attr( "height" ), "53", "Retrieve height attribute on an element with display:none." );
 
 	// Check for style support
-	styleElem = jQuery( "<div/>" ).appendTo( "#qunit-fixture" ).css( {
+	styleElem = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" ).css( {
 		background: "url(UPPERlower.gif)"
 	} );
 	assert.ok( !!~styleElem.attr( "style" ).indexOf( "UPPERlower.gif" ), "Check style attribute getter" );
@@ -158,11 +158,11 @@ QUnit.test( "attr(String)", function( assert ) {
 	$a = jQuery( "<a href='#' onclick='something()'>Click</a>" ).appendTo( "#qunit-fixture" );
 	assert.equal( $a.attr( "onclick" ), "something()", "Retrieve ^on attribute without anonymous function wrapper." );
 
-	assert.ok( jQuery( "<div/>" ).attr( "doesntexist" ) === undefined, "Make sure undefined is returned when no attribute is found." );
-	assert.ok( jQuery( "<div/>" ).attr( "title" ) === undefined, "Make sure undefined is returned when no attribute is found." );
-	assert.equal( jQuery( "<div/>" ).attr( "title", "something" ).attr( "title" ), "something", "Set the title attribute." );
+	assert.ok( jQuery( "<div></div>" ).attr( "doesntexist" ) === undefined, "Make sure undefined is returned when no attribute is found." );
+	assert.ok( jQuery( "<div></div>" ).attr( "title" ) === undefined, "Make sure undefined is returned when no attribute is found." );
+	assert.equal( jQuery( "<div></div>" ).attr( "title", "something" ).attr( "title" ), "something", "Set the title attribute." );
 	assert.ok( jQuery().attr( "doesntexist" ) === undefined, "Make sure undefined is returned when no element is there." );
-	assert.equal( jQuery( "<div/>" ).attr( "value" ), undefined, "An unset value on a div returns undefined." );
+	assert.equal( jQuery( "<div></div>" ).attr( "value" ), undefined, "An unset value on a div returns undefined." );
 	assert.strictEqual( jQuery( "<select><option value='property'></option></select>" ).attr( "value" ), undefined, "An unset value on a select returns undefined." );
 
 	$form = jQuery( "#form" ).attr( "enctype", "multipart/form-data" );
@@ -180,7 +180,7 @@ QUnit.test( "attr(String) on cloned elements, #9646", function( assert ) {
 
 	assert.strictEqual( input.clone( true ).attr( "name", "test" )[ 0 ].name, "test", "Name attribute should be changed on cloned element" );
 
-	div = jQuery( "<div id='tester' />" );
+	div = jQuery( "<div id='tester'></div>" );
 	div.attr( "id" );
 
 	assert.strictEqual( div.clone( true ).attr( "id", "test" )[ 0 ].id, "test", "Id attribute should be changed on cloned element" );
@@ -299,7 +299,7 @@ QUnit.test( "attr(String, Object)", function( assert ) {
 	$input = jQuery( "<input type='checkbox'/>" ).attr( "checked", true );
 	assert.equal( $input.prop( "checked" ), true, "Setting checked updates property (verified by .prop)" );
 	assert.equal( $input[ 0 ].checked, true, "Setting checked updates property (verified by native property)" );
-	$input = jQuery( "<option/>" ).attr( "selected", true );
+	$input = jQuery( "<option></option>" ).attr( "selected", true );
 	assert.equal( $input.prop( "selected" ), true, "Setting selected updates property (verified by .prop)" );
 	assert.equal( $input[ 0 ].selected, true, "Setting selected updates property (verified by native property)" );
 
@@ -592,7 +592,7 @@ QUnit.test( "removeAttr(String)", function( assert ) {
 	assert.expect( 12 );
 	var $first;
 
-	assert.equal( jQuery( "<div class='hello' />" ).removeAttr( "class" ).attr( "class" ), undefined, "remove class" );
+	assert.equal( jQuery( "<div class='hello'></div>" ).removeAttr( "class" ).attr( "class" ), undefined, "remove class" );
 	assert.equal( jQuery( "#form" ).removeAttr( "id" ).attr( "id" ), undefined, "Remove id" );
 	assert.equal( jQuery( "#foo" ).attr( "style", "position:absolute;" ).removeAttr( "style" ).attr( "style" ), undefined, "Check removing style attribute" );
 	assert.equal( jQuery( "#form" ).attr( "style", "position:absolute;" ).removeAttr( "style" ).attr( "style" ), undefined, "Check removing style attribute on a form" );
@@ -692,7 +692,7 @@ QUnit.test( "prop(String, Object)", function( assert ) {
 	assert.equal( jQuery( "#select2" ).prop( "selectedIndex" ), 3, "Check for selectedIndex attribute" );
 	assert.equal( jQuery( "#foo" ).prop( "nodeName" ).toUpperCase(), "DIV", "Check for nodeName attribute" );
 	assert.equal( jQuery( "#foo" ).prop( "tagName" ).toUpperCase(), "DIV", "Check for tagName attribute" );
-	assert.equal( jQuery( "<option/>" ).prop( "selected" ), false, "Check selected attribute on disconnected element." );
+	assert.equal( jQuery( "<option></option>" ).prop( "selected" ), false, "Check selected attribute on disconnected element." );
 
 	assert.equal( jQuery( "#listWithTabIndex" ).prop( "tabindex" ), 5, "Check retrieving tabindex" );
 	jQuery( "#text1" ).prop( "readonly", true );
@@ -837,16 +837,16 @@ QUnit.test( "option.prop('selected', true) affects select.selectedIndex (gh-2732
 
 	function addOptions( $elem ) {
 		return $elem.append(
-			jQuery( "<option/>" ).val( "a" ).text( "One" ),
-			jQuery( "<option/>" ).val( "b" ).text( "Two" ),
-			jQuery( "<option/>" ).val( "c" ).text( "Three" )
+			jQuery( "<option></option>" ).val( "a" ).text( "One" ),
+			jQuery( "<option></option>" ).val( "b" ).text( "Two" ),
+			jQuery( "<option></option>" ).val( "c" ).text( "Three" )
 		)
 		.find( "[value=a]" ).prop( "selected", true ).end()
 		.find( "[value=c]" ).prop( "selected", true ).end();
 	}
 
 	var $optgroup,
-		$select = jQuery( "<select/>" );
+		$select = jQuery( "<select></select>" );
 
 	// Check select with options
 	addOptions( $select ).appendTo( "#qunit-fixture" );
@@ -856,7 +856,7 @@ QUnit.test( "option.prop('selected', true) affects select.selectedIndex (gh-2732
 	$select.empty();
 
 	// Check select with optgroup
-	$optgroup = jQuery( "<optgroup/>" );
+	$optgroup = jQuery( "<optgroup></optgroup>" );
 	addOptions( $optgroup ).appendTo( $select );
 	$select.find( "[value=b]" ).prop( "selected", true );
 
@@ -970,7 +970,7 @@ QUnit.test( "val()", function( assert ) {
 	assert.equal( $button.val(), "foobar", "Value retrieval on a button does not return innerHTML" );
 	assert.equal( $button.val( "baz" ).html(), "text", "Setting the value does not change innerHTML" );
 
-	assert.equal( jQuery( "<option/>" ).val( "test" ).attr( "value" ), "test", "Setting value sets the value attribute" );
+	assert.equal( jQuery( "<option></option>" ).val( "test" ).attr( "value" ), "test", "Setting value sets the value attribute" );
 } );
 
 QUnit.test( "val() with non-matching values on dropdown list", function( assert ) {
@@ -1029,7 +1029,7 @@ var testVal = function( valueObj, assert ) {
 	assert.equal( document.getElementById( "text1" ).value, "", "Check for modified (via val(null)) value of input element" );
 
 	var j,
-		$select = jQuery( "<select multiple><option value='1'/><option value='2'/></select>" ),
+		$select = jQuery( "<select multiple><option value='1'></option><option value='2'></option></select>" ),
 		$select1 = jQuery( "#select1" );
 
 	$select1.val( valueObj( "3" ) );
@@ -1145,7 +1145,7 @@ QUnit.test( "val(select) after form.reset() (Bug #2551)", function( assert ) {
 QUnit.test( "select.val(space characters) (gh-2978)", function( assert ) {
 	assert.expect( 37 );
 
-	var $select = jQuery( "<select/>" ).appendTo( "#qunit-fixture" ),
+	var $select = jQuery( "<select></select>" ).appendTo( "#qunit-fixture" ),
 		spaces = {
 			"\\t": {
 				html: "&#09;",
@@ -1230,7 +1230,7 @@ var testAddClass = function( valueObj, assert ) {
 	j.addClass( valueObj( "asdf" ) );
 	assert.ok( j.hasClass( "asdf" ), "Check node,textnode,comment for addClass" );
 
-	div = jQuery( "<div/>" );
+	div = jQuery( "<div></div>" );
 
 	div.addClass( valueObj( "test" ) );
 	assert.equal( div.attr( "class" ), "test", "Make sure there's no extra whitespace." );
@@ -1669,17 +1669,17 @@ QUnit.test( "coords returns correct values in IE6/IE7, see #10828", function( as
 	assert.expect( 1 );
 
 	var area,
-		map = jQuery( "<map />" );
+		map = jQuery( "<map></map>" );
 
-	area = map.html( "<area shape='rect' coords='0,0,0,0' href='#' alt='a' />" ).find( "area" );
+	area = map.html( "<area shape='rect' coords='0,0,0,0' href='#' alt='a'></area>" ).find( "area" );
 	assert.equal( area.attr( "coords" ), "0,0,0,0", "did not retrieve coords correctly" );
 } );
 
 QUnit.test( "should not throw at $(option).val() (#14686)", function( assert ) {
 	assert.expect( 1 );
 
 	try {
-		jQuery( "<option/>" ).val();
+		jQuery( "<option></option>" ).val();
 		assert.ok( true );
 	} catch ( _ ) {
 		assert.ok( false );

diff --git a/test/unit/basic.js b/test/unit/basic.js
@@ -4,14 +4,14 @@ if ( jQuery.ajax ) {
 QUnit.test( "ajax", function( assert ) {
 	assert.expect( 4 );
 
-	var done = jQuery.map( new Array( 3 ), function() { return assert.async(); } );
+	var done = assert.async( 3 );
 
 	jQuery.ajax( {
 		type: "GET",
 		url: url( "mock.php?action=name&name=foo" ),
 		success: function( msg ) {
 			assert.strictEqual( msg, "bar", "Check for GET" );
-			done.pop()();
+			done();
 		}
 	} );
 
@@ -21,22 +21,22 @@ QUnit.test( "ajax", function( assert ) {
 		data: "name=peter",
 		success: function( msg ) {
 			assert.strictEqual( msg, "pan", "Check for POST" );
-			done.pop()();
+			done();
 		}
 	} );
 
 	jQuery( "#first" ).load( url( "name.html" ), function() {
 		assert.ok( /^ERROR/.test( jQuery( "#first" ).text() ),
 			"Check if content was injected into the DOM" );
-		done.pop()();
+		done();
 	} );
 } );
 }
 
 QUnit.test( "attributes", function( assert ) {
 	assert.expect( 6 );
 
-	var a = jQuery( "<a/>" ).appendTo( "#qunit-fixture" ),
+	var a = jQuery( "<a></a>" ).appendTo( "#qunit-fixture" ),
 		input = jQuery( "<input/>" ).appendTo( "#qunit-fixture" );
 
 	assert.strictEqual( a.attr( "foo", "bar" ).attr( "foo" ), "bar", ".attr getter/setter" );
@@ -56,7 +56,7 @@ if ( jQuery.css ) {
 QUnit.test( "css", function( assert ) {
 	assert.expect( 1 );
 
-	var div = jQuery( "<div/>" ).appendTo( "#qunit-fixture" );
+	var div = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" );
 
 	assert.strictEqual( div.css( "width", "50px" ).css( "width" ), "50px", ".css getter/setter" );
 } );
@@ -66,7 +66,7 @@ if ( jQuery.fn.show && jQuery.fn.hide ) {
 QUnit.test( "show/hide", function( assert ) {
 	assert.expect( 2 );
 
-	var div = jQuery( "<div/>" ).appendTo( "#qunit-fixture" );
+	var div = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" );
 
 	div.hide();
 	assert.strictEqual( div.css( "display" ), "none", "div hidden" );
@@ -76,12 +76,11 @@ QUnit.test( "show/hide", function( assert ) {
 }
 
 QUnit.test( "core", function( assert ) {
-	assert.expect( 18 );
+	assert.expect( 17 );
 
 	var elem = jQuery( "<div></div><span></span>" );
 
 	assert.strictEqual( elem.length, 2, "Correct number of elements" );
-	assert.strictEqual( jQuery.trim( "  hello   " ), "hello", "jQuery.trim" );
 
 	assert.ok( jQuery.isPlainObject( { "a": 2 } ), "jQuery.isPlainObject(object)" );
 	assert.ok( !jQuery.isPlainObject( "foo" ), "jQuery.isPlainObject(String)" );
@@ -127,7 +126,7 @@ QUnit.test( "core", function( assert ) {
 QUnit.test( "data", function( assert ) {
 	assert.expect( 4 );
 
-	var elem = jQuery( "<div data-c='d'/>" ).appendTo( "#qunit-fixture" );
+	var elem = jQuery( "<div data-c='d'></div>" ).appendTo( "#qunit-fixture" );
 
 	assert.ok( !jQuery.hasData( elem[ 0 ] ), "jQuery.hasData - false" );
 	assert.strictEqual( elem.data( "a", "b" ).data( "a" ), "b", ".data getter/setter" );
@@ -139,7 +138,7 @@ QUnit.test( "dimensions", function( assert ) {
 	assert.expect( 3 );
 
 	var elem = jQuery(
-		"<div style='margin: 10px; padding: 7px; border: 2px solid black;' /> "
+		"<div style='margin: 10px; padding: 7px; border: 2px solid black;'></div> "
 	).appendTo( "#qunit-fixture" );
 
 	assert.strictEqual( elem.width( 50 ).width(), 50, ".width getter/setter" );
@@ -150,7 +149,7 @@ QUnit.test( "dimensions", function( assert ) {
 QUnit.test( "event", function( assert ) {
 	assert.expect( 1 );
 
-	var elem = jQuery( "<div/>" ).appendTo( "#qunit-fixture" );
+	var elem = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" );
 
 	elem
 		.on( "click", function() {
@@ -169,12 +168,12 @@ QUnit.test( "manipulation", function( assert ) {
 
 	var child,
 		elem1 = jQuery( "<div><span></span></div>" ).appendTo( "#qunit-fixture" ),
-		elem2 = jQuery( "<div/>" ).appendTo( "#qunit-fixture" );
+		elem2 = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" );
 
 	assert.strictEqual( elem1.text( "foo" ).text(), "foo", ".html getter/setter" );
 
 	assert.strictEqual(
-		elem1.html( "<span/>" ).html(),
+		elem1.html( "<span></span>" ).html(),
 		"<span></span>",
 		".html getter/setter"
 	);
@@ -183,8 +182,8 @@ QUnit.test( "manipulation", function( assert ) {
 	assert.strictEqual( elem1.prepend( elem2 )[ 0 ].childNodes[ 0 ], elem2[ 0 ], ".prepend" );
 
 	child = elem1.find( "span" );
-	child.after( "<a/>" );
-	child.before( "<b/>" );
+	child.after( "<a></a>" );
+	child.before( "<b></b>" );
 
 	assert.strictEqual(
 		elem1.html(),
@@ -198,8 +197,8 @@ QUnit.test( "manipulation", function( assert ) {
 QUnit[ /jsdom\//.test( navigator.userAgent ) ? "skip" : "test" ]( "offset", function( assert ) {
 	assert.expect( 3 );
 
-	var parent = jQuery( "<div style='position:fixed;top:20px;'/>" ).appendTo( "#qunit-fixture" ),
-		elem = jQuery( "<div style='position:absolute;top:5px;'/>" ).appendTo( parent );
+	var parent = jQuery( "<div style='position:fixed;top:20px;'></div>" ).appendTo( "#qunit-fixture" ),
+		elem = jQuery( "<div style='position:absolute;top:5px;'></div>" ).appendTo( parent );
 
 	assert.strictEqual( elem.offset().top, 25, ".offset getter" );
 	assert.strictEqual( elem.position().top, 5, ".position getter" );

diff --git a/test/unit/callbacks.js b/test/unit/callbacks.js
@@ -4,6 +4,12 @@ QUnit.module( "callbacks", {
 
 ( function() {
 
+if ( !jQuery.Callbacks ) {
+	return;
+}
+
+( function() {
+
 var output,
 	addToOutput = function( string ) {
 		return function() {
@@ -387,3 +393,5 @@ QUnit.test( "jQuery.Callbacks() - list with memory stays locked (gh-3469)", func
 	cb.fire();
 	assert.equal( fired, 11, "Post-lock() fire ignored" );
 } );
+
+} )();
diff --git a/test/unit/core.js b/test/unit/core.js
@@ -23,9 +23,9 @@ QUnit.test( "jQuery()", function( assert ) {
 
 	var elem, i,
 		obj = jQuery( "div" ),
-		code = jQuery( "<code/>" ),
+		code = jQuery( "<code></code>" ),
 		img = jQuery( "<img/>" ),
-		div = jQuery( "<div/><hr/><code/><b/>" ),
+		div = jQuery( "<div></div><hr/><code></code><b/>" ),
 		exec = false,
 		expected = 23,
 		attrObj = {
@@ -113,7 +113,7 @@ QUnit.test( "jQuery()", function( assert ) {
 	elem = jQuery( "\n\n<em>world</em>" )[ 0 ];
 	assert.equal( elem.nodeName.toLowerCase(), "em", "leading newlines" );
 
-	elem = jQuery( "<div/>", attrObj );
+	elem = jQuery( "<div></div>", attrObj );
 
 	if ( jQuery.fn.width ) {
 		assert.equal( elem[ 0 ].style.width, "10px", "jQuery() quick setter width" );
@@ -197,6 +197,19 @@ QUnit.test( "globalEval execution after script injection (#7862)", function( ass
 	assert.ok( window.strictEvalTest - now < 500, "Code executed synchronously" );
 } );
 
+testIframe(
+	"globalEval with custom document context",
+	"core/globaleval-context.html",
+	function( assert, framejQuery, frameWindow, frameDocument ) {
+		assert.expect( 2 );
+
+		jQuery.globalEval( "window.scriptTest = true;", {}, frameDocument );
+		assert.ok( !window.scriptTest, "script executed in iframe context" );
+		assert.ok( frameWindow.scriptTest, "script executed in iframe context" );
+	}
+);
+
+
 QUnit.test( "noConflict", function( assert ) {
 	assert.expect( 7 );
 
@@ -216,28 +229,6 @@ QUnit.test( "noConflict", function( assert ) {
 	window[ "jQuery" ] = jQuery = $$;
 } );
 
-QUnit.test( "trim", function( assert ) {
-	assert.expect( 13 );
-
-	var nbsp = String.fromCharCode( 160 );
-
-	assert.equal( jQuery.trim( "hello  " ), "hello", "trailing space" );
-	assert.equal( jQuery.trim( "  hello" ), "hello", "leading space" );
-	assert.equal( jQuery.trim( "  hello   " ), "hello", "space on both sides" );
-	assert.equal( jQuery.trim( "  " + nbsp + "hello  " + nbsp + " " ), "hello", "&nbsp;" );
-
-	assert.equal( jQuery.trim(), "", "Nothing in." );
-	assert.equal( jQuery.trim( undefined ), "", "Undefined" );
-	assert.equal( jQuery.trim( null ), "", "Null" );
-	assert.equal( jQuery.trim( 5 ), "5", "Number" );
-	assert.equal( jQuery.trim( false ), "false", "Boolean" );
-
-	assert.equal( jQuery.trim( " " ), "", "space should be trimmed" );
-	assert.equal( jQuery.trim( "ipad\xA0" ), "ipad", "nbsp should be trimmed" );
-	assert.equal( jQuery.trim( "\uFEFF" ), "", "zwsp should be trimmed" );
-	assert.equal( jQuery.trim( "\uFEFF \xA0! | \uFEFF" ), "! |", "leading/trailing should be trimmed" );
-} );
-
 QUnit.test( "isPlainObject", function( assert ) {
 	var done = assert.async();
 
@@ -380,6 +371,52 @@ QUnit.test( "isXMLDoc - HTML", function( assert ) {
 	document.body.removeChild( iframe );
 } );
 
+QUnit.test( "isXMLDoc - embedded SVG", function( assert ) {
+	assert.expect( 6 );
+
+	var htmlTree = jQuery( "<div>" +
+		"<svg xmlns='http://www.w3.org/2000/svg' version='1.1' height='1' width='1'>" +
+		"<desc></desc>" +
+		"</svg>" +
+		"</div>"
+	)[ 0 ];
+
+	assert.strictEqual( jQuery.isXMLDoc( htmlTree ), false, "disconnected div element" );
+	assert.strictEqual( jQuery.isXMLDoc( htmlTree.firstChild ), true,
+		"disconnected HTML-embedded SVG root element" );
+
+	assert.strictEqual( jQuery.isXMLDoc( htmlTree.firstChild.firstChild ), true,
+		"disconnected HTML-embedded SVG child element" );
+
+	document.getElementById( "qunit-fixture" ).appendChild( htmlTree );
+	assert.strictEqual( jQuery.isXMLDoc( htmlTree ), false, "connected div element" );
+	assert.strictEqual( jQuery.isXMLDoc( htmlTree.firstChild ), true,
+		"connected HTML-embedded SVG root element" );
+
+	assert.strictEqual( jQuery.isXMLDoc( htmlTree.firstChild.firstChild ), true,
+		"disconnected HTML-embedded SVG child element" );
+} );
+
+QUnit.test( "isXMLDoc - XML", function( assert ) {
+	assert.expect( 8 );
+
+	var xml = createDashboardXML();
+	var svg = jQuery.parseXML(
+		"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" " +
+		"\"http://www.w3.org/Gaphics/SVG/1.1/DTD/svg11.dtd\">" +
+		"<svg version='1.1' xmlns='http://www.w3.org/2000/svg'><desc/></svg>"
+	);
+	assert.ok( jQuery.isXMLDoc( xml ), "XML document" );
+	assert.ok( jQuery.isXMLDoc( xml.documentElement ), "XML documentElement" );
+	assert.ok( jQuery.isXMLDoc( xml.documentElement.firstChild ), "XML child element" );
+	assert.ok( jQuery.isXMLDoc( jQuery( "tab", xml )[ 0 ] ), "XML tab Element" );
+
+	assert.ok( jQuery.isXMLDoc( svg ), "SVG document" );
+	assert.ok( jQuery.isXMLDoc( svg.documentElement ), "SVG documentElement" );
+	assert.ok( jQuery.isXMLDoc( svg.documentElement.firstChild ), "SVG child element" );
+	assert.ok( jQuery.isXMLDoc( jQuery( "desc", svg )[ 0 ] ), "XML desc Element" );
+} );
+
 QUnit.test( "XSS via location.hash", function( assert ) {
 	var done = assert.async();
 	assert.expect( 1 );
@@ -399,14 +436,6 @@ QUnit.test( "XSS via location.hash", function( assert ) {
 	}
 } );
 
-QUnit.test( "isXMLDoc - XML", function( assert ) {
-	assert.expect( 3 );
-	var xml = createDashboardXML();
-	assert.ok( jQuery.isXMLDoc( xml ), "XML document" );
-	assert.ok( jQuery.isXMLDoc( xml.documentElement ), "XML documentElement" );
-	assert.ok( jQuery.isXMLDoc( jQuery( "tab", xml )[ 0 ] ), "XML Tab Element" );
-} );
-
 QUnit.test( "jQuery('html')", function( assert ) {
 	assert.expect( 18 );
 
@@ -429,7 +458,7 @@ QUnit.test( "jQuery('html')", function( assert ) {
 
 	assert.ok( jQuery( "<link rel='stylesheet'/>" )[ 0 ], "Creating a link" );
 
-	assert.ok( !jQuery( "<script/>" )[ 0 ].parentNode, "Create a script" );
+	assert.ok( !jQuery( "<script></script>" )[ 0 ].parentNode, "Create a script" );
 
 	assert.ok( jQuery( "<input/>" ).attr( "type", "hidden" ), "Create an input and set the type." );
 
@@ -497,8 +526,8 @@ QUnit.test( "jQuery('massive html #7990')", function( assert ) {
 QUnit.test( "jQuery('html', context)", function( assert ) {
 	assert.expect( 1 );
 
-	var $div = jQuery( "<div/>" )[ 0 ],
-		$span = jQuery( "<span/>", $div );
+	var $div = jQuery( "<div></div>" )[ 0 ],
+		$span = jQuery( "<span></span>", $div );
 	assert.equal( $span.length, 1, "verify a span created with a div context works, #1763" );
 } );
 
@@ -632,6 +661,18 @@ QUnit.test( "first()/last()", function( assert ) {
 	assert.deepEqual( $none.last().get(), [], "last() none" );
 } );
 
+QUnit.test( "even()/odd()", function( assert ) {
+	assert.expect( 4 );
+
+	var $links = jQuery( "#ap a" ), $none = jQuery( "asdf" );
+
+	assert.deepEqual( $links.even().get(), q( "google", "anchor1" ), "even()" );
+	assert.deepEqual( $links.odd().get(), q( "groups", "mark" ), "odd()" );
+
+	assert.deepEqual( $none.even().get(), [], "even() none" );
+	assert.deepEqual( $none.odd().get(), [], "odd() none" );
+} );
+
 QUnit.test( "map()", function( assert ) {
 	assert.expect( 2 );
 
@@ -653,7 +694,7 @@ QUnit.test( "map()", function( assert ) {
 } );
 
 QUnit.test( "jQuery.map", function( assert ) {
-	assert.expect( 25 );
+	assert.expect( 28 );
 
 	var i, label, result, callback;
 
@@ -753,6 +794,24 @@ QUnit.test( "jQuery.map", function( assert ) {
 		return k % 2 ? k : [ k, k, k ];
 	} );
 	assert.equal( result.join( "" ), "00012223", "Array results flattened (#2616)" );
+
+	result = jQuery.map( [ [ [ 1, 2 ], 3 ], 4 ], function( v, k ) {
+		return v;
+	} );
+	assert.equal( result.length, 3, "Array flatten only one level down" );
+	assert.ok( Array.isArray( result[ 0 ] ), "Array flatten only one level down" );
+
+	// Support: IE 9 - 11+, Edge 18+, Android Browser 4.0 - 4.3 only, iOS 7 - 11 only,
+	// Safari 11 only, Firefox <= 61 only
+	// Skip the test in browsers without Array#flat.
+	if ( Array.prototype.flat ) {
+		result = jQuery.map( Array( 300000 ), function( v, k ) {
+			return k;
+		} );
+		assert.equal( result.length, 300000, "Able to map 300000 records without any problems (#4320)" );
+	} else {
+		assert.ok( "skip", "Array#flat doesn't supported on all browsers" );
+	}
 } );
 
 QUnit.test( "jQuery.merge()", function( assert ) {
@@ -1297,7 +1356,7 @@ QUnit.test( "jQuery.parseHTML", function( assert ) {
 	assert.equal( jQuery.parseHTML( "text" )[ 0 ].nodeType, 3, "Parsing text returns a text node" );
 	assert.equal( jQuery.parseHTML( "\t<div></div>" )[ 0 ].nodeValue, "\t", "Preserve leading whitespace" );
 
-	assert.equal( jQuery.parseHTML( " <div/> " )[ 0 ].nodeType, 3, "Leading spaces are treated as text nodes (#11290)" );
+	assert.equal( jQuery.parseHTML( " <div></div> " )[ 0 ].nodeType, 3, "Leading spaces are treated as text nodes (#11290)" );
 
 	html = jQuery.parseHTML( "<div>test div</div>" );
 

diff --git a/test/unit/css.js b/test/unit/css.js
diff --git a/test/unit/data.js b/test/unit/data.js
@@ -427,7 +427,7 @@ QUnit.test( ".data(Object)", function( assert ) {
 	assert.expect( 4 );
 
 	var obj, jqobj,
-		div = jQuery( "<div/>" );
+		div = jQuery( "<div></div>" );
 
 	div.data( { "test": "in", "test2": "in2" } );
 	assert.equal( div.data( "test" ), "in", "Verify setting an object in data" );
@@ -556,7 +556,7 @@ QUnit.test( ".data should not miss preset data-* w/ hyphenated property names",
 
 	assert.expect( 2 );
 
-	var div = jQuery( "<div/>", { id: "hyphened" } ).appendTo( "#qunit-fixture" ),
+	var div = jQuery( "<div></div>", { id: "hyphened" } ).appendTo( "#qunit-fixture" ),
 		test = {
 			"camelBar": "camelBar",
 			"hyphen-foo": "hyphen-foo"
@@ -573,7 +573,7 @@ QUnit.test( "jQuery.data should not miss data-* w/ hyphenated property names #14
 
 	assert.expect( 1 );
 
-	var div = jQuery( "<div/>" );
+	var div = jQuery( "<div></div>" );
 
 	div.data( "foo-bar", "baz" );
 
@@ -585,14 +585,14 @@ QUnit.test( ".data should not miss attr() set data-* with hyphenated property na
 
 	var a, b;
 
-	a = jQuery( "<div/>" ).appendTo( "#qunit-fixture" );
+	a = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" );
 
 	a.attr( "data-long-param", "test" );
 	a.data( "long-param", { a: 2 } );
 
 	assert.deepEqual( a.data( "long-param" ), { a: 2 }, "data with property long-param was found, 1" );
 
-	b = jQuery( "<div/>" ).appendTo( "#qunit-fixture" );
+	b = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" );
 
 	b.attr( "data-long-param", "test" );
 	b.data( "long-param" );
@@ -668,7 +668,7 @@ QUnit.test( ".data should not strip more than one hyphen when camelCasing (gh-20
 
 QUnit.test( ".data supports interoperable hyphenated/camelCase get/set of properties with arbitrary non-null|NaN|undefined values", function( assert ) {
 
-	var div = jQuery( "<div/>", { id: "hyphened" } ).appendTo( "#qunit-fixture" ),
+	var div = jQuery( "<div></div>", { id: "hyphened" } ).appendTo( "#qunit-fixture" ),
 		datas = {
 			"non-empty": {
 				key: "nonEmpty",
@@ -736,7 +736,8 @@ QUnit.test( ".data supports interoperable hyphenated/camelCase get/set of proper
 } );
 
 QUnit.test( ".data supports interoperable removal of hyphenated/camelCase properties", function( assert ) {
-	var div = jQuery( "<div/>", { id: "hyphened" } ).appendTo( "#qunit-fixture" ),
+	var div = jQuery( "<div></div>", { id: "hyphened" } ).appendTo( "#qunit-fixture" ),
+		rdashAlpha = /-([a-z])/g,
 		datas = {
 			"non-empty": "a string",
 			"empty-string": "",
@@ -755,11 +756,19 @@ QUnit.test( ".data supports interoperable removal of hyphenated/camelCase proper
 
 	assert.expect( 27 );
 
+	function fcamelCase( all, letter ) {
+		return letter.toUpperCase();
+	}
+
 	jQuery.each( datas, function( key, val ) {
 		div.data( key, val );
 
 		assert.deepEqual( div.data( key ), val, "get: " + key );
-		assert.deepEqual( div.data( jQuery.camelCase( key ) ), val, "get: " + jQuery.camelCase( key ) );
+		assert.deepEqual(
+			div.data( key.replace( rdashAlpha, fcamelCase ) ),
+			val,
+			"get: " + key.replace( rdashAlpha, fcamelCase )
+		);
 
 		div.removeData( key );
 
@@ -934,7 +943,7 @@ QUnit.test( "Check that the expando is removed when there's no more data", funct
 	assert.expect( 2 );
 
 	var key,
-		div = jQuery( "<div/>" );
+		div = jQuery( "<div></div>" );
 	div.data( "some", "data" );
 	assert.equal( div.data( "some" ), "data", "Data is added" );
 	div.removeData( "some" );
@@ -968,7 +977,7 @@ QUnit.test( ".data(prop) does not create expando", function( assert ) {
 	assert.expect( 1 );
 
 	var key,
-		div = jQuery( "<div/>" );
+		div = jQuery( "<div></div>" );
 
 	div.data( "foo" );
 	assert.equal( jQuery.hasData( div[ 0 ] ), false, "No data exists after access" );
@@ -980,3 +989,18 @@ QUnit.test( ".data(prop) does not create expando", function( assert ) {
 		}
 	}
 } );
+
+QUnit.test( "keys matching Object.prototype properties  (gh-3256)", function( assert ) {
+	assert.expect( 2 );
+
+	var div = jQuery( "<div></div>" );
+
+	assert.strictEqual( div.data( "hasOwnProperty" ), undefined,
+		"hasOwnProperty not matched (before forced data creation)" );
+
+	// Force the creation of a data object for this element.
+	div.data( { foo: "bar" } );
+
+	assert.strictEqual( div.data( "hasOwnProperty" ), undefined,
+		"hasOwnProperty not matched (after forced data creation)" );
+} );
diff --git a/test/unit/deferred.js b/test/unit/deferred.js
@@ -2,6 +2,12 @@ QUnit.module( "deferred", {
 	afterEach: moduleTeardown
 } );
 
+( function() {
+
+if ( !jQuery.Deferred ) {
+	return;
+}
+
 jQuery.each( [ "", " - new operator" ], function( _, withNew ) {
 
 	function createDeferred( fn ) {
@@ -1154,3 +1160,5 @@ QUnit.test( "jQuery.when(...) - opportunistically synchronous", function( assert
 
 	when = "after";
 } );
+
+} )();
diff --git a/test/unit/deprecated.js b/test/unit/deprecated.js
@@ -1,7 +1,7 @@
 QUnit.module( "deprecated", { afterEach: moduleTeardown } );
 
 
-QUnit.test( "bind/unbind", function( assert ) {
+QUnit[ jQuery.fn.bind ? "test" : "skip" ]( "bind/unbind", function( assert ) {
 	assert.expect( 4 );
 
 	var markup = jQuery(
@@ -22,7 +22,7 @@ QUnit.test( "bind/unbind", function( assert ) {
 		.remove();
 } );
 
-QUnit.test( "delegate/undelegate", function( assert ) {
+QUnit[ jQuery.fn.delegate ? "test" : "skip" ]( "delegate/undelegate", function( assert ) {
 	assert.expect( 2 );
 
 	var markup = jQuery(
@@ -41,28 +41,25 @@ QUnit.test( "delegate/undelegate", function( assert ) {
 		.remove();
 } );
 
-if ( jQuery.fn.hover ) {
-	QUnit.test( "hover() mouseenter mouseleave", function( assert ) {
-		assert.expect( 1 );
-
-		var times = 0,
-			handler1 = function() { ++times; },
-			handler2 = function() { ++times; };
-
-		jQuery( "#firstp" )
-			.hover( handler1, handler2 )
-			.mouseenter().mouseleave()
-			.off( "mouseenter", handler1 )
-			.off( "mouseleave", handler2 )
-			.hover( handler1 )
-			.mouseenter().mouseleave()
-			.off( "mouseenter mouseleave", handler1 )
-			.mouseenter().mouseleave();
-
-		assert.equal( times, 4, "hover handlers fired" );
+QUnit[ jQuery.fn.hover ? "test" : "skip" ]( "hover() mouseenter mouseleave", function( assert ) {
+	assert.expect( 1 );
 
-	} );
-}
+	var times = 0,
+		handler1 = function() { ++times; },
+		handler2 = function() { ++times; };
+
+	jQuery( "#firstp" )
+		.hover( handler1, handler2 )
+		.mouseenter().mouseleave()
+		.off( "mouseenter", handler1 )
+		.off( "mouseleave", handler2 )
+		.hover( handler1 )
+		.mouseenter().mouseleave()
+		.off( "mouseenter mouseleave", handler1 )
+		.mouseenter().mouseleave();
+
+	assert.equal( times, 4, "hover handlers fired" );
+} );
 
 
 QUnit[ jQuery.fn.click ? "test" : "skip" ]( "trigger() shortcuts", function( assert ) {
@@ -99,10 +96,49 @@ QUnit[ jQuery.fn.click ? "test" : "skip" ]( "trigger() shortcuts", function( ass
 	assert.equal( clickCounter, 1, "Check that click, triggers onclick event handler on an a tag also" );
 } );
 
+if ( jQuery.ajax && jQuery.fn.ajaxSend ) {
+	ajaxTest( "jQuery.ajax() - events with context", 12, function( assert ) {
+		var context = document.createElement( "div" );
+
+		function event( e ) {
+			assert.equal( this, context, e.type );
+		}
+
+		function callback( msg ) {
+			return function() {
+				assert.equal( this, context, "context is preserved on callback " + msg );
+			};
+		}
+
+		return {
+			setup: function() {
+				jQuery( context ).appendTo( "#foo" )
+					.ajaxSend( event )
+					.ajaxComplete( event )
+					.ajaxError( event )
+					.ajaxSuccess( event );
+			},
+			requests: [ {
+				url: url( "name.html" ),
+				context: context,
+				beforeSend: callback( "beforeSend" ),
+				success: callback( "success" ),
+				complete: callback( "complete" )
+			}, {
+				url: url( "404.txt" ),
+				context: context,
+				beforeSend: callback( "beforeSend" ),
+				error: callback( "error" ),
+				complete: callback( "complete" )
+			} ]
+		};
+	} );
+}
+
 QUnit[ jQuery.fn.click ? "test" : "skip" ]( "Event aliases", function( assert ) {
 
 	// Explicitly skipping focus/blur events due to their flakiness
-	var	$elem = jQuery( "<div />" ).appendTo( "#qunit-fixture" ),
+	var	$elem = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" ),
 		aliases = ( "resize scroll click dblclick mousedown mouseup " +
 			"mousemove mouseover mouseout mouseenter mouseleave change " +
 			"select submit keydown keypress keyup contextmenu" ).split( " " );
@@ -117,7 +153,7 @@ QUnit[ jQuery.fn.click ? "test" : "skip" ]( "Event aliases", function( assert )
 	} );
 } );
 
-QUnit.test( "jQuery.parseJSON", function( assert ) {
+QUnit[ jQuery.parseJSON ? "test" : "skip" ]( "jQuery.parseJSON", function( assert ) {
 	assert.expect( 20 );
 
 	assert.strictEqual( jQuery.parseJSON( null ), null, "primitive null" );
@@ -187,13 +223,13 @@ QUnit.test( "jQuery.parseJSON", function( assert ) {
 	assert.strictEqual( jQuery.parseJSON( [ 0 ] ), 0, "Input cast to string" );
 } );
 
-QUnit.test( "jQuery.isArray", function( assert ) {
+QUnit[ jQuery.isArray ? "test" : "skip" ]( "jQuery.isArray", function( assert ) {
 	assert.expect( 1 );
 
 	assert.strictEqual( jQuery.isArray, Array.isArray, "Array.isArray equals jQuery.isArray" );
 } );
 
-QUnit.test( "jQuery.nodeName", function( assert ) {
+QUnit[ jQuery.nodeName ? "test" : "skip" ]( "jQuery.nodeName", function( assert ) {
 	assert.expect( 8 );
 
 	assert.strictEqual( typeof jQuery.nodeName, "function", "jQuery.nodeName is a function" );
@@ -242,7 +278,7 @@ QUnit.test( "jQuery.nodeName", function( assert ) {
 } );
 
 
-QUnit.test( "type", function( assert ) {
+QUnit[ jQuery.type ? "test" : "skip" ]( "type", function( assert ) {
 	assert.expect( 28 );
 
 	assert.equal( jQuery.type( null ), "null", "null" );
@@ -281,14 +317,15 @@ QUnit.test( "type", function( assert ) {
 	assert.equal( jQuery.type( new MyObject() ), "object", "Object" );
 } );
 
-QUnit[ typeof Symbol === "function" ? "test" : "skip" ]( "type for `Symbol`", function( assert ) {
+QUnit[ jQuery.type && typeof Symbol === "function" ? "test" : "skip" ](
+	"type for `Symbol`", function( assert ) {
 	assert.expect( 2 );
 
 	assert.equal( jQuery.type( Symbol() ), "symbol", "Symbol" );
 	assert.equal( jQuery.type( Object( Symbol() ) ), "symbol", "Symbol" );
 } );
 
-QUnit.test( "isFunction", function( assert ) {
+QUnit[ jQuery.isFunction ? "test" : "skip" ]( "isFunction", function( assert ) {
 	assert.expect( 20 );
 
 	var mystr, myarr, myfunction, fn, obj, nodes, first, input, a;
@@ -376,7 +413,7 @@ QUnit.test( "isFunction", function( assert ) {
 	} );
 } );
 
-QUnit.test( "isFunction(cross-realm function)", function( assert ) {
+QUnit[ jQuery.isFunction ? "test" : "skip" ]( "isFunction(cross-realm function)", function( assert ) {
 	assert.expect( 1 );
 
 	var iframe, doc,
@@ -409,7 +446,7 @@ supportjQuery.each(
 			fn = Function( "return " + source )();
 		} catch ( e ) {}
 
-		QUnit[ fn ? "test" : "skip" ]( "isFunction(" + subclass + ")",
+		QUnit[ jQuery.isFunction && fn ? "test" : "skip" ]( "isFunction(" + subclass + ")",
 			function( assert ) {
 				assert.expect( 1 );
 
@@ -419,7 +456,7 @@ supportjQuery.each(
 	}
 );
 
-QUnit[ typeof Symbol === "function" && Symbol.toStringTag ? "test" : "skip" ](
+QUnit[ jQuery.isFunction && typeof Symbol === "function" && Symbol.toStringTag ? "test" : "skip" ](
 	"isFunction(custom @@toStringTag)",
 	function( assert ) {
 		assert.expect( 2 );
@@ -434,7 +471,7 @@ QUnit[ typeof Symbol === "function" && Symbol.toStringTag ? "test" : "skip" ](
 	}
 );
 
-QUnit.test( "jQuery.isWindow", function( assert ) {
+QUnit[ jQuery.isWindow ? "test" : "skip" ]( "jQuery.isWindow", function( assert ) {
 	assert.expect( 14 );
 
 	assert.ok( jQuery.isWindow( window ), "window" );
@@ -453,7 +490,7 @@ QUnit.test( "jQuery.isWindow", function( assert ) {
 	assert.ok( !jQuery.isWindow( function() {} ), "function" );
 } );
 
-QUnit.test( "jQuery.camelCase()", function( assert ) {
+QUnit[ jQuery.camelCase ? "test" : "skip" ]( "jQuery.camelCase()", function( assert ) {
 
 	var tests = {
 		"foo-bar": "fooBar",
@@ -472,13 +509,13 @@ QUnit.test( "jQuery.camelCase()", function( assert ) {
 	} );
 } );
 
-QUnit.test( "jQuery.now", function( assert ) {
+QUnit[ jQuery.now ? "test" : "skip" ]( "jQuery.now", function( assert ) {
 	assert.expect( 1 );
 
 	assert.ok( typeof jQuery.now() === "number", "jQuery.now is a function" );
 } );
 
-QUnit.test( "jQuery.proxy", function( assert ) {
+QUnit[ jQuery.proxy ? "test" : "skip" ]( "jQuery.proxy", function( assert ) {
 	assert.expect( 9 );
 
 	var test2, test3, test4, fn, cb,
@@ -526,7 +563,7 @@ QUnit.test( "jQuery.proxy", function( assert ) {
 	cb.call( thisObject, "arg3" );
 } );
 
-QUnit.test( "isNumeric", function( assert ) {
+QUnit[ jQuery.isNumeric ? "test" : "skip" ]( "isNumeric", function( assert ) {
 	assert.expect( 43 );
 
 	var t = jQuery.isNumeric,
@@ -594,9 +631,32 @@ QUnit.test( "isNumeric", function( assert ) {
 	assert.equal( t( new Date() ), false, "Instance of a Date" );
 } );
 
-QUnit[ typeof Symbol === "function" ? "test" : "skip" ]( "isNumeric(Symbol)", function( assert ) {
+QUnit[ jQuery.isNumeric && typeof Symbol === "function" ? "test" : "skip" ](
+	"isNumeric(Symbol)", function( assert ) {
 	assert.expect( 2 );
 
 	assert.equal( jQuery.isNumeric( Symbol() ), false, "Symbol" );
 	assert.equal( jQuery.isNumeric( Object( Symbol() ) ), false, "Symbol inside an object" );
 } );
+
+QUnit[ jQuery.trim ? "test" : "skip" ]( "trim", function( assert ) {
+	assert.expect( 13 );
+
+	var nbsp = String.fromCharCode( 160 );
+
+	assert.equal( jQuery.trim( "hello  " ), "hello", "trailing space" );
+	assert.equal( jQuery.trim( "  hello" ), "hello", "leading space" );
+	assert.equal( jQuery.trim( "  hello   " ), "hello", "space on both sides" );
+	assert.equal( jQuery.trim( "  " + nbsp + "hello  " + nbsp + " " ), "hello", "&nbsp;" );
+
+	assert.equal( jQuery.trim(), "", "Nothing in." );
+	assert.equal( jQuery.trim( undefined ), "", "Undefined" );
+	assert.equal( jQuery.trim( null ), "", "Null" );
+	assert.equal( jQuery.trim( 5 ), "5", "Number" );
+	assert.equal( jQuery.trim( false ), "false", "Boolean" );
+
+	assert.equal( jQuery.trim( " " ), "", "space should be trimmed" );
+	assert.equal( jQuery.trim( "ipad\xA0" ), "ipad", "nbsp should be trimmed" );
+	assert.equal( jQuery.trim( "\uFEFF" ), "", "zwsp should be trimmed" );
+	assert.equal( jQuery.trim( "\uFEFF \xA0! | \uFEFF" ), "! |", "leading/trailing should be trimmed" );
+} );
diff --git a/test/unit/dimensions.js b/test/unit/dimensions.js
@@ -342,7 +342,7 @@ QUnit.test( "getting dimensions shouldn't modify runtimeStyle see #9233", functi
 QUnit.test( "table dimensions", function( assert ) {
 	assert.expect( 2 );
 
-	var table = jQuery( "<table><colgroup><col/><col/></colgroup><tbody><tr><td></td><td>a</td></tr><tr><td></td><td>a</td></tr></tbody></table>" ).appendTo( "#qunit-fixture" ),
+	var table = jQuery( "<table><colgroup><col></col><col></col></colgroup><tbody><tr><td></td><td>a</td></tr><tr><td></td><td>a</td></tr></tbody></table>" ).appendTo( "#qunit-fixture" ),
 		tdElem = table.find( "td" ).first(),
 		colElem = table.find( "col" ).first().width( 300 );
 
@@ -536,7 +536,7 @@ QUnit.test( "allow modification of coordinates argument (gh-1848)", function( as
 	assert.expect( 1 );
 
 	var offsetTop,
-		element = jQuery( "<div/>" ).appendTo( "#qunit-fixture" );
+		element = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" );
 
 	element.offset( function( index, coords ) {
 		coords.top = 100;
@@ -583,7 +583,7 @@ QUnit.test( "width/height on element with transform (gh-3193)", function( assert
 
 	assert.expect( 2 );
 
-	var $elem = jQuery( "<div style='width: 200px; height: 200px; transform: scale(2);' />" )
+	var $elem = jQuery( "<div style='width: 200px; height: 200px; transform: scale(2);'></div>" )
 		.appendTo( "#qunit-fixture" );
 
 	assert.equal( $elem.width(), 200, "Width ignores transforms" );
@@ -627,7 +627,14 @@ QUnit.test( "width/height on an inline element with percentage dimensions (gh-36
 	}
 );
 
-QUnit.test( "width/height on a table row with phantom borders (gh-3698)", function( assert ) {
+// Support: Firefox 70+
+// Firefox 70 & newer fail this test but the issue there is more profound - Firefox doesn't
+// subtract borders from table row computed widths.
+// See https://github.com/jquery/jquery/issues/4529
+// See https://bugzilla.mozilla.org/show_bug.cgi?id=1590837
+// See https://github.com/w3c/csswg-drafts/issues/4444
+QUnit[ /firefox/i.test( navigator.userAgent ) ? "skip" : "test" ](
+	"width/height on a table row with phantom borders (gh-3698)", function( assert ) {
 	assert.expect( 4 );
 
 	jQuery( "<table id='gh3698' style='border-collapse: separate; border-spacing: 0;'><tbody>" +
@@ -656,7 +663,7 @@ QUnit.test( "interaction with scrollbars (gh-3589)", function( assert ) {
 				return old + adjustment;
 			};
 		},
-		parent = jQuery( "<div/>" )
+		parent = jQuery( "<div></div>" )
 			.css( { position: "absolute", width: "1000px", height: "1000px" } )
 			.appendTo( "#qunit-fixture" ),
 		fraction = jQuery.support.boxSizingReliable() ?
@@ -665,7 +672,7 @@ QUnit.test( "interaction with scrollbars (gh-3589)", function( assert ) {
 		borderWidth = 1,
 		padding = 2,
 		size = 100 + fraction,
-		plainBox = jQuery( "<div />" )
+		plainBox = jQuery( "<div></div>" )
 			.css( {
 				"box-sizing": "content-box",
 				position: "absolute",
@@ -752,24 +759,24 @@ QUnit.test( "interaction with scrollbars (gh-3589)", function( assert ) {
 
 QUnit.test( "outerWidth/Height for table cells and textarea with border-box in IE 11 (gh-4102)", function( assert ) {
 	assert.expect( 5 );
-	var $table = jQuery( "<table class='border-box' style='border-collapse: separate' />" ).appendTo( "#qunit-fixture" ),
-		$thead = jQuery( "<thead />" ).appendTo( $table ),
-		$firstTh = jQuery( "<th style='width: 200px;padding: 5px' />" ),
-		$secondTh = jQuery( "<th style='width: 190px;padding: 5px' />" ),
-		$thirdTh = jQuery( "<th style='width: 180px;padding: 5px' />" ),
+	var $table = jQuery( "<table class='border-box' style='border-collapse: separate'></table>" ).appendTo( "#qunit-fixture" ),
+		$thead = jQuery( "<thead></thead>" ).appendTo( $table ),
+		$firstTh = jQuery( "<th style='width: 200px;padding: 5px'></th>" ),
+		$secondTh = jQuery( "<th style='width: 190px;padding: 5px'></th>" ),
+		$thirdTh = jQuery( "<th style='width: 180px;padding: 5px'></th>" ),
 
 		// Support: Firefox 63, Edge 16-17, Android 8, iOS 7-11
 		// These browsers completely ignore the border-box and height settings
 		// The computed height is instead just line-height + border
 		// Either way, what we're doing in css.js is correct
 		$td = jQuery( "<td style='height: 20px;padding: 5px;border: 1px solid;line-height:18px'>text</td>" ),
 
-		$tbody = jQuery( "<tbody />" ).appendTo( $table ),
-		$textarea = jQuery( "<textarea style='height: 0;padding: 2px;border: 1px solid;box-sizing: border-box' />" ).appendTo( "#qunit-fixture" );
+		$tbody = jQuery( "<tbody></tbody>" ).appendTo( $table ),
+		$textarea = jQuery( "<textarea style='height: 0;padding: 2px;border: 1px solid;box-sizing: border-box'></textarea>" ).appendTo( "#qunit-fixture" );
 
-	jQuery( "<tr />" ).appendTo( $thead ).append( $firstTh );
-	jQuery( "<tr />" ).appendTo( $thead ).append( $secondTh );
-	jQuery( "<tr />" ).appendTo( $thead ).append( $thirdTh );
+	jQuery( "<tr></tr>" ).appendTo( $thead ).append( $firstTh );
+	jQuery( "<tr></tr>" ).appendTo( $thead ).append( $secondTh );
+	jQuery( "<tr></tr>" ).appendTo( $thead ).append( $thirdTh );
 	jQuery( "<tr><td></td></tr>" ).appendTo( $tbody ).append( $td );
 
 	assert.strictEqual( $firstTh.outerWidth(), 200, "First th has outerWidth 200." );

diff --git a/test/unit/effects.js b/test/unit/effects.js
@@ -221,8 +221,11 @@ supportjQuery.each( hideOptions, function( type, setup ) {
 		assert.expectJqData( this, $span, "olddisplay" );
 	} );
 
-	QUnit[ document.body.attachShadow ? "test" : "skip" ](
-		"Persist correct display value - " + type + " hidden, shadow child", function( assert ) {
+	QUnit[
+		document.body.attachShadow && document.body.getRootNode ?
+			"test" :
+			"skip"
+		]( "Persist correct display value - " + type + " hidden, shadow child", function( assert ) {
 		assert.expect( 3 );
 
 		jQuery( "<div id='shadowHost'></div>" ).appendTo( "#qunit-fixture" );
@@ -602,7 +605,7 @@ QUnit.test( "animate duration 0", function( assert ) {
 	} );
 	this.clock.tick( 200 );
 
-	$elem = jQuery( "<div />" );
+	$elem = jQuery( "<div></div>" );
 	$elem.show( 0, function() {
 		assert.ok( true, "Show callback with no duration" );
 	} );
@@ -1299,7 +1302,7 @@ QUnit.test( "animate with CSS shorthand properties", function( assert ) {
 QUnit.test( "hide hidden elements, with animation (bug #7141)", function( assert ) {
 	assert.expect( 4 );
 
-	var div = jQuery( "<div id='bug7141' style='display:none'/>" ).appendTo( "#qunit-fixture" );
+	var div = jQuery( "<div id='bug7141' style='display:none'></div>" ).appendTo( "#qunit-fixture" );
 	assert.equal( div.css( "display" ), "none", "Element is initially hidden" );
 	div.hide( 10, function() {
 		assert.equal( div.css( "display" ), "none", "Element is hidden in .hide() callback" );
@@ -1600,10 +1603,10 @@ QUnit.test( "animate should set display for disconnected nodes", function( asser
 			toggle: [ 1 ],
 			slideToggle: []
 		},
-		$divEmpty = jQuery( "<div/>" ),
+		$divEmpty = jQuery( "<div></div>" ),
 		$divTest = jQuery( "<div>test</div>" ),
-		$divNone = jQuery( "<div style='display: none;'/>" ),
-		$divInline = jQuery( "<div style='display: inline;'/>" ),
+		$divNone = jQuery( "<div style='display: none;'></div>" ),
+		$divInline = jQuery( "<div style='display: inline;'></div>" ),
 		nullParentDisplay = $divEmpty.css( "display" ),
 		underFragmentDisplay = $divTest.css( "display" ),
 		clock = this.clock;
@@ -1623,7 +1626,7 @@ QUnit.test( "animate should set display for disconnected nodes", function( asser
 	assert.expectJqData( env, $divNone[ 0 ], "olddisplay" );
 
 	jQuery.each( showMethods, function( name, opt ) {
-		jQuery.fn[ name ].apply( jQuery( "<div/>" ), opt.concat( [ function() {
+		jQuery.fn[ name ].apply( jQuery( "<div></div>" ), opt.concat( [ function() {
 			assert.strictEqual( jQuery( this ).css( "display" ), nullParentDisplay,
 				"." + name + " block with null parentNode" );
 		} ] ) );
@@ -1634,7 +1637,7 @@ QUnit.test( "animate should set display for disconnected nodes", function( asser
 		} ] ) );
 	} );
 	jQuery.each( toggleMethods, function( name, opt ) {
-		jQuery.fn[ name ].apply( jQuery( "<div/>" ), opt.concat( [ function() {
+		jQuery.fn[ name ].apply( jQuery( "<div></div>" ), opt.concat( [ function() {
 			assert.strictEqual( jQuery( this ).css( "display" ), "none",
 				"." + name + " block with null parentNode" );
 		} ] ) );
@@ -2359,8 +2362,8 @@ QUnit.test( "Respect display value on inline elements (#14824)", function( asser
 	assert.expect( 2 );
 
 	var clock = this.clock,
-		fromStyleSheet = jQuery( "<span id='span-14824' />" ),
-		fromStyleAttr = jQuery( "<span style='display: block;' />" );
+		fromStyleSheet = jQuery( "<span id='span-14824'></span>" ),
+		fromStyleAttr = jQuery( "<span style='display: block;'></span>" );
 
 	jQuery( "#qunit-fixture" ).append( fromStyleSheet, fromStyleAttr );
 
@@ -2460,7 +2463,7 @@ QUnit.test( "jQuery.easing._default in Tween (gh-2218)", function( assert ) {
 QUnit.test( "Display value is correct for disconnected nodes (trac-13310)", function( assert ) {
 	assert.expect( 3 );
 
-	var div = jQuery( "<div/>" );
+	var div = jQuery( "<div></div>" );
 
 	assert.equal( div.css( "display", "inline" ).hide().show().appendTo( "body" ).css( "display" ), "inline", "Initialized display value has returned" );
 	div.remove();
@@ -2481,7 +2484,7 @@ QUnit.test( "Show/hide/toggle and display: inline", function( assert ) {
 
 	var clock = this.clock;
 
-	jQuery( "<span/><div style='display:inline' title='inline div'/>" ).each( function() {
+	jQuery( "<span></span><div style='display:inline' title='inline div'></div>" ).each( function() {
 		var completed, interrupted,
 			N = 100,
 			fixture = jQuery( "#qunit-fixture" ),

diff --git a/test/unit/event.js b/test/unit/event.js
@@ -153,7 +153,7 @@ QUnit.test( "on(), multiple events at once and namespaces", function( assert ) {
 	var cur, div,
 		obj = {};
 
-	div = jQuery( "<div/>" ).on( "focusin.a", function( e ) {
+	div = jQuery( "<div></div>" ).on( "focusin.a", function( e ) {
 		assert.equal( e.type, cur, "Verify right single event was fired." );
 	} );
 
@@ -163,7 +163,7 @@ QUnit.test( "on(), multiple events at once and namespaces", function( assert ) {
 	// manually clean up detached elements
 	div.remove();
 
-	div = jQuery( "<div/>" ).on( "click mouseover", obj, function( e ) {
+	div = jQuery( "<div></div>" ).on( "click mouseover", obj, function( e ) {
 		assert.equal( e.type, cur, "Verify right multi event was fired." );
 		assert.equal( e.data, obj, "Make sure the data came in correctly." );
 	} );
@@ -177,7 +177,7 @@ QUnit.test( "on(), multiple events at once and namespaces", function( assert ) {
 	// manually clean up detached elements
 	div.remove();
 
-	div = jQuery( "<div/>" ).on( "focusin.a focusout.b", function( e ) {
+	div = jQuery( "<div></div>" ).on( "focusin.a focusout.b", function( e ) {
 		assert.equal( e.type, cur, "Verify right multi event was fired." );
 	} );
 
@@ -195,7 +195,7 @@ QUnit.test( "on(), namespace with special add", function( assert ) {
 	assert.expect( 27 );
 
 	var i = 0,
-		div = jQuery( "<div/>" ).appendTo( "#qunit-fixture" ).on( "test", function() {
+		div = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" ).on( "test", function() {
 			assert.ok( true, "Test event fired." );
 		} );
 
@@ -244,7 +244,7 @@ QUnit.test( "on(), namespace with special add", function( assert ) {
 	// Should trigger 4
 	div.off( "test" );
 
-	div = jQuery( "<div/>" ).on( "test", function() {
+	div = jQuery( "<div></div>" ).on( "test", function() {
 		assert.ok( true, "Test event fired." );
 	} );
 
@@ -876,7 +876,7 @@ QUnit.test( "mouseover triggers mouseenter", function( assert ) {
 	assert.expect( 1 );
 
 	var count = 0,
-		elem = jQuery( "<a />" );
+		elem = jQuery( "<a></a>" );
 	elem.on( "mouseenter", function() {
 		count++;
 	} );
@@ -890,7 +890,7 @@ QUnit.test( "pointerover triggers pointerenter", function( assert ) {
 	assert.expect( 1 );
 
 	var count = 0,
-		elem = jQuery( "<a />" );
+		elem = jQuery( "<a></a>" );
 	elem.on( "pointerenter", function() {
 		count++;
 	} );
@@ -1075,7 +1075,7 @@ QUnit.test( "submit event bubbles on copied forms (#11649)", function( assert )
 	var $formByClone, $formByHTML,
 		$testForm = jQuery( "#testForm" ),
 		$fixture = jQuery( "#qunit-fixture" ),
-		$wrapperDiv = jQuery( "<div/>" ).appendTo( $fixture );
+		$wrapperDiv = jQuery( "<div></div>" ).appendTo( $fixture );
 
 	function noSubmit( e ) {
 		e.preventDefault();
@@ -1111,7 +1111,7 @@ QUnit.test( "change event bubbles on copied forms (#11796)", function( assert )
 	var $formByClone, $formByHTML,
 		$form = jQuery( "#form" ),
 		$fixture = jQuery( "#qunit-fixture" ),
-		$wrapperDiv = jQuery( "<div/>" ).appendTo( $fixture );
+		$wrapperDiv = jQuery( "<div></div>" ).appendTo( $fixture );
 
 	function delegatedChange() {
 		assert.ok( true, "Make sure change event bubbles up." );
@@ -1141,7 +1141,7 @@ QUnit.test( "trigger(eventObject, [data], [fn])", function( assert ) {
 	assert.expect( 28 );
 
 	var event,
-		$parent = jQuery( "<div id='par' />" ).appendTo( "body" ),
+		$parent = jQuery( "<div id='par'></div>" ).appendTo( "body" ),
 		$child = jQuery( "<p id='child'>foo</p>" ).appendTo( $parent );
 
 	$parent.get( 0 ).style.display = "none";
@@ -1317,7 +1317,7 @@ QUnit.test( "Delegated events with malformed selectors (gh-3071)", function( ass
 		jQuery( "#foo" ).on( "click", "nonexistent:not", function() {} );
 	}, "short-circuitable malformed selector throws on attach" );
 
-	jQuery( "#foo > :first-child" ).click();
+	jQuery( "#foo > :first-child" ).trigger( "click" );
 	assert.ok( true, "malformed selector does not throw on event" );
 } );
 
@@ -1796,6 +1796,49 @@ QUnit.test( "jQuery.off using dispatched jQuery.Event", function( assert ) {
 		.remove();
 } );
 
+QUnit.test( "events with type matching an Object.prototype property (gh-3256)", function( assert ) {
+	assert.expect( 1 );
+
+	var elem = jQuery( "<div></div>" ),
+		eventFired = false;
+
+	elem.appendTo( "#qunit-fixture" );
+
+	try {
+		elem
+			.one( "hasOwnProperty", function() {
+				eventFired = true;
+			} )
+			.trigger( "hasOwnProperty" );
+	} finally {
+		assert.strictEqual( eventFired, true, "trigger fired without crashing" );
+	}
+} );
+
+QUnit.test( "events with type matching an Object.prototype property, cloned element (gh-3256)",
+	function( assert ) {
+	assert.expect( 1 );
+
+	var elem = jQuery( "<div></div>" ),
+		eventFired = false;
+
+	elem.appendTo( "#qunit-fixture" );
+
+	try {
+		// Make sure the original element has some event data.
+		elem.on( "click", function() {} );
+
+		elem
+			.clone( true )
+			.one( "hasOwnProperty", function() {
+				eventFired = true;
+			} )
+			.trigger( "hasOwnProperty" );
+	} finally {
+		assert.strictEqual( eventFired, true, "trigger fired without crashing" );
+	}
+} );
+
 // selector-native does not support scope-fixing in delegation
 QUnit[ jQuery.find.compile ? "test" : "skip" ]( "delegated event with delegateTarget-relative selector", function( assert ) {
 	assert.expect( 3 );
@@ -2490,7 +2533,7 @@ QUnit.test( "drag/drop events copy mouse-related event properties (gh-1925, gh-2
 
 	fireNative( $fixture[ 0 ], "drop" );
 
-	$fixture.unbind( "dragmove drop" ).remove();
+	$fixture.off( "dragmove drop" ).remove();
 } );
 
 QUnit.test( "focusin using non-element targets", function( assert ) {
@@ -2512,38 +2555,81 @@ testIframe(
 	function( assert, framejQuery, frameWin, frameDoc ) {
 		assert.expect( 1 );
 
-		var input = jQuery( frameDoc ).find( "#frame-input" );
+		var done = assert.async(),
+			focus = false,
+			input = jQuery( frameDoc ).find( "#frame-input" );
 
 		// Create a focusin handler on the parent; shouldn't affect the iframe's fate
 		jQuery( "body" ).on( "focusin.iframeTest", function() {
-			assert.ok( false, "fired a focusin event in the parent document" );
+
+			// Support: IE 9 - 11+
+			// IE does propagate the event to the parent document. In this test
+			// we mainly care about the inner element so we'll just skip this one
+			// assertion in IE.
+			if ( !document.documentMode ) {
+				assert.ok( false, "fired a focusin event in the parent document" );
+			}
 		} );
 
 		input.on( "focusin", function() {
+			focus = true;
 			assert.ok( true, "fired a focusin event in the iframe" );
 		} );
 
 		// Avoid a native event; Chrome can't force focus to another frame
-		input.trigger( "focusin" );
-
-		// Must manually remove handler to avoid leaks in our data store
-		input.remove();
-
-		// Be sure it was removed; nothing should happen
-		input.trigger( "focusin" );
+		input[ 0 ].focus();
 
 		// Remove body handler manually since it's outside the fixture
 		jQuery( "body" ).off( "focusin.iframeTest" );
+
+		setTimeout( function() {
+
+			// DOM focus is unreliable in TestSwarm
+			if ( QUnit.isSwarm && !focus ) {
+				assert.ok( true, "GAP: Could not observe focus change" );
+			}
+
+			done();
+		}, 50 );
 	}
 );
 
+QUnit.test( "focusin on document & window", function( assert ) {
+	assert.expect( 1 );
+
+	var counter = 0,
+		input = jQuery( "<input />" );
+
+	input.appendTo( "#qunit-fixture" );
+
+	input[ 0 ].focus();
+
+	jQuery( window ).on( "focusout", function() {
+		counter++;
+	} );
+	jQuery( document ).on( "focusout", function() {
+		counter++;
+	} );
+
+	input[ 0 ].blur();
+
+	// DOM focus is unreliable in TestSwarm
+	if ( QUnit.isSwarm && counter === 0 ) {
+		assert.ok( true, "GAP: Could not observe focus change" );
+	}
+
+	assert.strictEqual( counter, 2,
+		"focusout handlers on document/window fired once only" );
+} );
+
 testIframe(
 	"jQuery.ready promise",
 	"event/promiseReady.html",
 	function( assert, jQuery, window, document, isOk ) {
 		assert.expect( 1 );
 		assert.ok( isOk, "$.when( $.ready ) works" );
-	}
+	},
+	jQuery.when ? QUnit.test : QUnit.skip
 );
 
 // need PHP here to make the incepted IFRAME hang
@@ -2739,7 +2825,7 @@ QUnit.test( ".off() removes the expando when there's no more data", function( as
 	assert.expect( 2 );
 
 	var key,
-		div = jQuery( "<div/>" ).appendTo( "#qunit-fixture" );
+		div = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" );
 
 	div.on( "click", false );
 	div.on( "custom", function() {
@@ -2806,6 +2892,15 @@ QUnit.test( "preventDefault() on focusin does not throw exception", function( as
 	}, QUnit.config.testTimeout / 4 || 1000 );
 } );
 
+QUnit.test( ".on('focus', fn) on a text node doesn't throw", function( assert ) {
+	assert.expect( 1 );
+
+	jQuery( document.createTextNode( "text" ) )
+		.on( "focus", function() {} );
+
+	assert.ok( true, "No crash" );
+} );
+
 QUnit.test( "Donor event interference", function( assert ) {
 	assert.expect( 8 );
 
@@ -3041,6 +3136,49 @@ QUnit.test( "focus-blur order (#12868)", function( assert ) {
 	}, 50 );
 } );
 
+QUnit.test( "Event handling works with multiple async focus events (gh-4350)", function( assert ) {
+	assert.expect( 3 );
+
+	var remaining = 3,
+		input = jQuery( "#name" ),
+
+		// Support: IE <=9 - 11+
+		// focus and blur events are asynchronous; this is the resulting mess.
+		// The browser window must be topmost for this to work properly!!
+		done = assert.async();
+
+	input
+		.on( "focus", function() {
+			remaining--;
+			assert.ok( true, "received focus event, expecting " + remaining + " more" );
+			if ( remaining > 0 ) {
+				input.trigger( "blur" );
+			} else {
+				done();
+			}
+		} )
+		.on( "blur", function() {
+			setTimeout( function() {
+				input.trigger( "focus" );
+			} );
+		} );
+
+	// gain focus
+	input.trigger( "focus" );
+
+	// DOM focus is unreliable in TestSwarm
+	setTimeout( function() {
+		if ( QUnit.isSwarm && remaining === 3 ) {
+			assert.ok( true, "GAP: Could not observe focus change" );
+			assert.ok( true, "GAP: Could not observe focus change" );
+			assert.ok( true, "GAP: Could not observe focus change" );
+			setTimeout( function() {
+				done();
+			} );
+		}
+	} );
+} );
+
 QUnit.test( "native-backed events preserve trigger data (gh-1741, gh-4139)", function( assert ) {
 	assert.expect( 17 );
 

diff --git a/test/unit/manipulation.js b/test/unit/manipulation.js
diff --git a/test/unit/offset.js b/test/unit/offset.js
@@ -5,7 +5,7 @@ if ( !jQuery.fn.offset ) {
 }
 
 var supportsFixedPosition, supportsScroll, alwaysScrollable,
-	forceScroll = supportjQuery( "<div/>" ).css( { width: 2000, height: 2000 } ),
+	forceScroll = supportjQuery( "<div></div>" ).css( { width: 2000, height: 2000 } ),
 	checkSupport = function( assert ) {
 
 		// Only run once
@@ -81,7 +81,7 @@ QUnit.test( "disconnected element", function( assert ) {
 QUnit.test( "hidden (display: none) element", function( assert ) {
 	assert.expect( 4 );
 
-	var node = jQuery( "<div style='display: none' />" ).appendTo( "#qunit-fixture" ),
+	var node = jQuery( "<div style='display: none'></div>" ).appendTo( "#qunit-fixture" ),
 		result = node.offset();
 
 	node.remove();
@@ -98,7 +98,7 @@ QUnit.test( "hidden (display: none) element", function( assert ) {
 QUnit.test( "0 sized element", function( assert ) {
 	assert.expect( 4 );
 
-	var node = jQuery( "<div style='margin: 5px; width: 0; height: 0' />" ).appendTo( "#qunit-fixture" ),
+	var node = jQuery( "<div style='margin: 5px; width: 0; height: 0'></div>" ).appendTo( "#qunit-fixture" ),
 		result = node.offset();
 
 	node.remove();
@@ -112,7 +112,7 @@ QUnit.test( "0 sized element", function( assert ) {
 QUnit.test( "hidden (visibility: hidden) element", function( assert ) {
 	assert.expect( 4 );
 
-	var node = jQuery( "<div style='margin: 5px; visibility: hidden' />" ).appendTo( "#qunit-fixture" ),
+	var node = jQuery( "<div style='margin: 5px; visibility: hidden'></div>" ).appendTo( "#qunit-fixture" ),
 		result = node.offset();
 
 	node.remove();
@@ -785,7 +785,7 @@ QUnit.test( "offsetParent", function( assert ) {
 QUnit.test( "fractions (see #7730 and #7885)", function( assert ) {
 	assert.expect( 2 );
 
-	jQuery( "body" ).append( "<div id='fractions'/>" );
+	jQuery( "body" ).append( "<div id='fractions'></div>" );
 
 	var result,
 		expected = { "top": 1000, "left": 1000 },
@@ -806,7 +806,7 @@ QUnit.test( "fractions (see #7730 and #7885)", function( assert ) {
 	// Support: Chrome <=45 - 46
 	// In recent Chrome these values differ a little.
 	assert.ok( Math.abs( result.top - expected.top ) < 0.25, "Check top within 0.25 of expected" );
-	assert.equal( result.left, expected.left, "Check left" );
+	assert.ok( Math.abs( result.left - expected.left ) < 0.25, "Check left within 0.25 of expected" );
 
 	div.remove();
 } );

diff --git a/test/unit/queue.js b/test/unit/queue.js
@@ -1,5 +1,11 @@
 QUnit.module( "queue", { afterEach: moduleTeardown } );
 
+( function() {
+
+if ( !jQuery.fn.queue ) {
+	return;
+}
+
 QUnit.test( "queue() with other types", function( assert ) {
 	var done = assert.async( 2 );
 	assert.expect( 14 );
@@ -271,64 +277,63 @@ QUnit.test( ".promise(obj)", function( assert ) {
 	assert.strictEqual( promise, obj, ".promise(type, obj) returns obj" );
 } );
 
-if ( jQuery.fn.stop ) {
-	QUnit.test( "delay() can be stopped", function( assert ) {
-		var done = assert.async();
-		assert.expect( 3 );
-		var storage = {};
-		jQuery( {} )
-			.queue( "alternate", function( next ) {
-				storage.alt1 = true;
-				assert.ok( true, "This first function was dequeued" );
-				next();
-			} )
-			.delay( 1000, "alternate" )
-			.queue( "alternate", function() {
-				storage.alt2 = true;
-				assert.ok( true, "The function was dequeued immediately, the delay was stopped" );
-			} )
-			.dequeue( "alternate" )
-
-			// stop( "alternate", false ) will NOT clear the queue, so it should automatically dequeue the next
-			.stop( "alternate", false, false )
-
-			// this test
-			.delay( 1 )
-			.queue( function() {
-				storage.default1 = true;
-				assert.ok( false, "This queue should never run" );
-			} )
-
-			// stop( clearQueue ) should clear the queue
-			.stop( true, false );
-
-		assert.deepEqual( storage, { alt1: true, alt2: true }, "Queue ran the proper functions" );
+QUnit[ jQuery.fn.stop ? "test" : "skip" ]( "delay() can be stopped", function( assert ) {
+	var done = assert.async();
+	assert.expect( 3 );
+	var storage = {};
+	jQuery( {} )
+		.queue( "alternate", function( next ) {
+			storage.alt1 = true;
+			assert.ok( true, "This first function was dequeued" );
+			next();
+		} )
+		.delay( 1000, "alternate" )
+		.queue( "alternate", function() {
+			storage.alt2 = true;
+			assert.ok( true, "The function was dequeued immediately, the delay was stopped" );
+		} )
+		.dequeue( "alternate" )
 
-		setTimeout( function() {
-			done();
-		}, 1500 );
-	} );
+		// stop( "alternate", false ) will NOT clear the queue, so it should automatically dequeue the next
+		.stop( "alternate", false, false )
 
-	QUnit.test( "queue stop hooks", function( assert ) {
-		assert.expect( 2 );
-		var done = assert.async();
-		var foo = jQuery( "#foo" );
+		// this test
+		.delay( 1 )
+		.queue( function() {
+			storage.default1 = true;
+			assert.ok( false, "This queue should never run" );
+		} )
 
-		foo.queue( function( next, hooks ) {
-			hooks.stop = function( gotoEnd ) {
-				assert.equal( !!gotoEnd, false, "Stopped without gotoEnd" );
-			};
-		} );
-		foo.stop();
+		// stop( clearQueue ) should clear the queue
+		.stop( true, false );
 
-		foo.queue( function( next, hooks ) {
-			hooks.stop = function( gotoEnd ) {
-				assert.equal( gotoEnd, true, "Stopped with gotoEnd" );
-				done();
-			};
-		} );
+	assert.deepEqual( storage, { alt1: true, alt2: true }, "Queue ran the proper functions" );
+
+	setTimeout( function() {
+		done();
+	}, 1500 );
+} );
+
+QUnit[ jQuery.fn.stop ? "test" : "skip" ]( "queue stop hooks", function( assert ) {
+	assert.expect( 2 );
+	var done = assert.async();
+	var foo = jQuery( "#foo" );
+
+	foo.queue( function( next, hooks ) {
+		hooks.stop = function( gotoEnd ) {
+			assert.equal( !!gotoEnd, false, "Stopped without gotoEnd" );
+		};
+	} );
+	foo.stop();
 
-		foo.stop( false, true );
+	foo.queue( function( next, hooks ) {
+		hooks.stop = function( gotoEnd ) {
+			assert.equal( gotoEnd, true, "Stopped with gotoEnd" );
+			done();
+		};
 	} );
 
-} // if ( jQuery.fn.stop )
+	foo.stop( false, true );
+} );
+
+} )();
diff --git a/test/unit/ready.js b/test/unit/ready.js
@@ -2,7 +2,7 @@ QUnit.module( "ready" );
 
 ( function() {
 	var notYetReady, noEarlyExecution,
-		whenified = jQuery.when( jQuery.ready ),
+		whenified = jQuery.when && jQuery.when( jQuery.ready ),
 		promisified = Promise.resolve( jQuery.ready ),
 		start = new Date(),
 		order = [],
@@ -105,33 +105,33 @@ QUnit.module( "ready" );
 		} );
 	} );
 
-	QUnit.test( "jQuery.when(jQuery.ready)", function( assert ) {
+	QUnit[ jQuery.when ? "test" : "skip" ]( "jQuery.when(jQuery.ready)", function( assert ) {
 		assert.expect( 2 );
-		var done = jQuery.map( new Array( 2 ), function() { return assert.async(); } );
+		var done = assert.async( 2 );
 
 		whenified.then( function() {
 			assert.ok( jQuery.isReady, "jQuery.when Deferred resolved" );
-			done.pop()();
+			done();
 		} );
 
 		jQuery.when( jQuery.ready ).then( function() {
 			assert.ok( jQuery.isReady, "jQuery.when Deferred resolved" );
-			done.pop()();
+			done();
 		} );
 	} );
 
 	QUnit.test( "Promise.resolve(jQuery.ready)", function( assert ) {
 		assert.expect( 2 );
-		var done = jQuery.map( new Array( 2 ), function() { return assert.async(); } );
+		var done = assert.async( 2 );
 
 		promisified.then( function() {
 			assert.ok( jQuery.isReady, "Native promised resolved" );
-			done.pop()();
+			done();
 		} );
 
 		Promise.resolve( jQuery.ready ).then( function() {
 			assert.ok( jQuery.isReady, "Native promised resolved" );
-			done.pop()();
+			done();
 		} );
 	} );
 
@@ -149,15 +149,18 @@ QUnit.module( "ready" );
 		} );
 	} );
 
-	testIframe(
-		"holdReady test needs to be a standalone test since it deals with DOM ready",
-		"readywait.html",
-		function( assert, jQuery, window, document, releaseCalled ) {
-			assert.expect( 2 );
-			var now = new Date();
-			assert.ok( now - start >= 300, "Needs to have waited at least half a second" );
-			assert.ok( releaseCalled, "The release function was called, which resulted in ready" );
-		}
-	);
+	// jQuery.holdReady is deprecated, skip the test if it was excluded.
+	if ( jQuery.holdReady ) {
+		testIframe(
+			"holdReady test needs to be a standalone test since it deals with DOM ready",
+			"readywait.html",
+			function( assert, jQuery, window, document, releaseCalled ) {
+				assert.expect( 2 );
+				var now = new Date();
+				assert.ok( now - start >= 300, "Needs to have waited at least half a second" );
+				assert.ok( releaseCalled, "The release function was called, which resulted in ready" );
+			}
+		);
+	}
 
 } )();
diff --git a/test/unit/selector.js b/test/unit/selector.js
@@ -92,7 +92,7 @@ QUnit.test( "name", function( assert ) {
 QUnit.test( "selectors with comma", function( assert ) {
 	assert.expect( 4 );
 
-	var fixture = jQuery( "<div><h2><span/></h2><div><p><span/></p><p/></div></div>" );
+	var fixture = jQuery( "<div><h2><span></span></h2><div><p><span></span></p><p></p></div></div>" );
 
 	assert.equal( fixture.find( "h2, div p" ).filter( "p" ).length, 2, "has to find two <p>" );
 	assert.equal( fixture.find( "h2, div p" ).filter( "h2" ).length, 1, "has to find one <h2>" );
@@ -275,7 +275,7 @@ QUnit.test( "attributes", function( assert ) {
 QUnit.test( "disconnected nodes", function( assert ) {
 	assert.expect( 1 );
 
-	var $div = jQuery( "<div/>" );
+	var $div = jQuery( "<div></div>" );
 	assert.equal( $div.is( "div" ), true, "Make sure .is('nodeName') works on disconnected nodes." );
 } );
 

diff --git a/test/unit/serialize.js b/test/unit/serialize.js
@@ -77,7 +77,7 @@ QUnit.test( "jQuery.param()", function( assert ) {
 	assert.equal( jQuery.param( params ), "", "jQuery.param( undefined ) === empty string" );
 } );
 
-QUnit.test( "jQuery.param() not affected by ajaxSettings", function( assert ) {
+QUnit[ jQuery.ajax ? "test" : "skip" ]( "jQuery.param() not affected by ajaxSettings", function( assert ) {
 	assert.expect( 1 );
 
 	var oldTraditional = jQuery.ajaxSettings.traditional;

diff --git a/test/unit/support.js b/test/unit/support.js
@@ -55,7 +55,7 @@ testIframe(
 );
 
 ( function() {
-	var expected,
+	var browserKey, expected,
 		userAgent = window.navigator.userAgent,
 		expectedMap = {
 			edge: {
@@ -68,11 +68,13 @@ testIframe(
 				"createHTMLDocument": true,
 				"focusin": false,
 				"noCloneChecked": true,
+				"option": true,
 				"optSelected": true,
 				"pixelBoxStyles": true,
 				"pixelPosition": true,
 				"radioValue": true,
 				"reliableMarginLeft": true,
+				"reliableTrDimensions": false,
 				"scrollboxSize": true
 			},
 			ie_10_11: {
@@ -85,11 +87,13 @@ testIframe(
 				"createHTMLDocument": true,
 				"focusin": true,
 				"noCloneChecked": false,
+				"option": true,
 				"optSelected": false,
 				"pixelBoxStyles": true,
 				"pixelPosition": true,
 				"radioValue": false,
 				"reliableMarginLeft": true,
+				"reliableTrDimensions": false,
 				"scrollboxSize": true
 			},
 			ie_9: {
@@ -102,11 +106,13 @@ testIframe(
 				"createHTMLDocument": true,
 				"focusin": true,
 				"noCloneChecked": false,
+				"option": false,
 				"optSelected": false,
 				"pixelBoxStyles": true,
 				"pixelPosition": true,
 				"radioValue": false,
 				"reliableMarginLeft": true,
+				"reliableTrDimensions": false,
 				"scrollboxSize": false
 			},
 			chrome: {
@@ -119,11 +125,13 @@ testIframe(
 				"createHTMLDocument": true,
 				"focusin": false,
 				"noCloneChecked": true,
+				"option": true,
 				"optSelected": true,
 				"pixelBoxStyles": true,
 				"pixelPosition": true,
 				"radioValue": true,
 				"reliableMarginLeft": true,
+				"reliableTrDimensions": true,
 				"scrollboxSize": true
 			},
 			safari: {
@@ -136,11 +144,13 @@ testIframe(
 				"createHTMLDocument": true,
 				"focusin": false,
 				"noCloneChecked": true,
+				"option": true,
 				"optSelected": true,
 				"pixelBoxStyles": true,
 				"pixelPosition": true,
 				"radioValue": true,
 				"reliableMarginLeft": true,
+				"reliableTrDimensions": true,
 				"scrollboxSize": true
 			},
 			safari_9_10: {
@@ -153,11 +163,13 @@ testIframe(
 				"createHTMLDocument": true,
 				"focusin": false,
 				"noCloneChecked": true,
+				"option": true,
 				"optSelected": true,
 				"pixelBoxStyles": false,
 				"pixelPosition": false,
 				"radioValue": true,
 				"reliableMarginLeft": true,
+				"reliableTrDimensions": true,
 				"scrollboxSize": true
 			},
 			firefox: {
@@ -170,11 +182,13 @@ testIframe(
 				"createHTMLDocument": true,
 				"focusin": false,
 				"noCloneChecked": true,
+				"option": true,
 				"optSelected": true,
 				"pixelBoxStyles": true,
 				"pixelPosition": true,
 				"radioValue": true,
 				"reliableMarginLeft": true,
+				"reliableTrDimensions": true,
 				"scrollboxSize": true
 			},
 			firefox_60: {
@@ -187,11 +201,13 @@ testIframe(
 				"createHTMLDocument": true,
 				"focusin": false,
 				"noCloneChecked": true,
+				"option": true,
 				"optSelected": true,
 				"pixelBoxStyles": true,
 				"pixelPosition": true,
 				"radioValue": true,
 				"reliableMarginLeft": false,
+				"reliableTrDimensions": true,
 				"scrollboxSize": true
 			},
 			ios: {
@@ -204,11 +220,13 @@ testIframe(
 				"createHTMLDocument": true,
 				"focusin": false,
 				"noCloneChecked": true,
+				"option": true,
 				"optSelected": true,
 				"pixelBoxStyles": true,
 				"pixelPosition": true,
 				"radioValue": true,
 				"reliableMarginLeft": true,
+				"reliableTrDimensions": true,
 				"scrollboxSize": true
 			},
 			ios_9_10: {
@@ -221,11 +239,13 @@ testIframe(
 				"createHTMLDocument": true,
 				"focusin": false,
 				"noCloneChecked": true,
+				"option": true,
 				"optSelected": true,
 				"pixelBoxStyles": false,
 				"pixelPosition": false,
 				"radioValue": true,
 				"reliableMarginLeft": true,
+				"reliableTrDimensions": true,
 				"scrollboxSize": true
 			},
 			ios_8: {
@@ -238,11 +258,13 @@ testIframe(
 				"createHTMLDocument": false,
 				"focusin": false,
 				"noCloneChecked": true,
+				"option": true,
 				"optSelected": true,
 				"pixelBoxStyles": false,
 				"pixelPosition": false,
 				"radioValue": true,
 				"reliableMarginLeft": true,
+				"reliableTrDimensions": true,
 				"scrollboxSize": true
 			},
 			ios_7: {
@@ -255,11 +277,13 @@ testIframe(
 				"createHTMLDocument": true,
 				"focusin": false,
 				"noCloneChecked": true,
+				"option": true,
 				"optSelected": true,
 				"pixelBoxStyles": false,
 				"pixelPosition": false,
 				"radioValue": true,
 				"reliableMarginLeft": true,
+				"reliableTrDimensions": true,
 				"scrollboxSize": true
 			},
 			android: {
@@ -272,15 +296,25 @@ testIframe(
 				"createHTMLDocument": true,
 				"focusin": false,
 				"noCloneChecked": true,
+				"option": true,
 				"optSelected": true,
 				"pixelBoxStyles": false,
 				"pixelPosition": false,
 				"radioValue": true,
 				"reliableMarginLeft": false,
+				"reliableTrDimensions": true,
 				"scrollboxSize": true
 			}
 		};
 
+	// Make the slim build pass tests.
+	for ( browserKey in expectedMap ) {
+		if ( !jQuery.ajax ) {
+			delete expectedMap[ browserKey ].ajax;
+			delete expectedMap[ browserKey ].cors;
+		}
+	}
+
 	if ( /edge\//i.test( userAgent ) ) {
 		expected = expectedMap.edge;
 	} else if ( /(msie 10\.0|trident\/7\.0)/i.test( userAgent ) ) {
@@ -292,24 +326,24 @@ testIframe(
 		// Catches Chrome on Android as well (i.e. the default
 		// Android browser on Android >= 4.4).
 		expected = expectedMap.chrome;
-	} else if ( /\b(?:11|12)\.\d(\.\d+)* safari/i.test( userAgent ) ) {
-		expected = expectedMap.safari;
-	} else if ( /\b(?:9|10)\.\d(\.\d+)* safari/i.test( userAgent ) ) {
+	} else if ( /\b(?:9|10)\.\d+(\.\d+)* safari/i.test( userAgent ) ) {
 		expected = expectedMap.safari_9_10;
-	} else if ( /firefox\/(?:52|60)/i.test( userAgent ) ) {
+	} else if ( /firefox\/(?:4\d|5\d|60)/i.test( userAgent ) ) {
 		expected = expectedMap.firefox_60;
 	} else if ( /firefox/i.test( userAgent ) ) {
 		expected = expectedMap.firefox;
-	} else if ( /(?:iphone|ipad);.*(?:iphone)? os (?:11|12)_/i.test( userAgent ) ) {
-		expected = expectedMap.ios;
+	} else if ( /android 4\.[0-3]/i.test( userAgent ) ) {
+		expected = expectedMap.android;
 	} else if ( /iphone os (?:9|10)_/i.test( userAgent ) ) {
 		expected = expectedMap.ios_9_10;
 	} else if ( /iphone os 8_/i.test( userAgent ) ) {
 		expected = expectedMap.ios_8;
 	} else if ( /iphone os 7_/i.test( userAgent ) ) {
 		expected = expectedMap.ios_7;
-	} else if ( /android 4\.[0-3]/i.test( userAgent ) ) {
-		expected = expectedMap.android;
+	} else if ( /(?:iphone|ipad);.*(?:iphone)? os \d+_/i.test( userAgent ) ) {
+		expected = expectedMap.ios;
+	} else if ( /\b\d+(\.\d+)+ safari/i.test( userAgent ) ) {
+		expected = expectedMap.safari;
 	}
 
 	QUnit.test( "Verify that support tests resolve as expected per browser", function( assert ) {

diff --git a/test/unit/traversing.js b/test/unit/traversing.js
@@ -197,7 +197,7 @@ QUnit.test( "index()", function( assert ) {
 
 	assert.equal( jQuery( "#text2" ).index(), 2, "Returns the index of a child amongst its siblings" );
 
-	assert.equal( jQuery( "<div/>" ).index(), -1, "Node without parent returns -1" );
+	assert.equal( jQuery( "<div></div>" ).index(), -1, "Node without parent returns -1" );
 } );
 
 QUnit.test( "index(Object|String|undefined)", function( assert ) {
@@ -502,7 +502,7 @@ QUnit.test( "has(Element)", function( assert ) {
 	obj = jQuery( "#qunit-fixture" ).has( jQuery( "#sndp" )[ 0 ] );
 	assert.deepEqual( obj.get(), q( "qunit-fixture" ), "Keeps elements that have the element as a descendant" );
 
-	detached = jQuery( "<a><b><i/></b></a>" );
+	detached = jQuery( "<a><b><i></i></b></a>" );
 	assert.deepEqual( detached.has( detached.find( "i" )[ 0 ] ).get(), detached.get(), "...Even when detached" );
 
 	multipleParent = jQuery( "#qunit-fixture, #header" ).has( jQuery( "#sndp" )[ 0 ] );
@@ -517,7 +517,7 @@ QUnit.test( "has(Selector)", function( assert ) {
 	obj = jQuery( "#qunit-fixture" ).has( "#sndp" );
 	assert.deepEqual( obj.get(), q( "qunit-fixture" ), "Keeps elements that have any element matching the selector as a descendant" );
 
-	detached = jQuery( "<a><b><i/></b></a>" );
+	detached = jQuery( "<a><b><i></i></b></a>" );
 	assert.deepEqual( detached.has( "i" ).get(), detached.get(), "...Even when detached" );
 
 	multipleParent = jQuery( "#qunit-fixture, #header" ).has( "#sndp" );
@@ -538,7 +538,7 @@ QUnit.test( "has(Arrayish)", function( assert ) {
 	simple = jQuery( "#qunit-fixture" ).has( jQuery( "#sndp" ) );
 	assert.deepEqual( simple.get(), q( "qunit-fixture" ), "Keeps elements that have any element in the jQuery list as a descendant" );
 
-	detached = jQuery( "<a><b><i/></b></a>" );
+	detached = jQuery( "<a><b><i></i></b></a>" );
 	assert.deepEqual( detached.has( detached.find( "i" ) ).get(), detached.get(), "...Even when detached" );
 
 	multipleParent = jQuery( "#qunit-fixture, #header" ).has( jQuery( "#sndp" ) );
@@ -566,7 +566,7 @@ QUnit.test( "siblings([String])", function( assert ) {
 	var set = q( "sndp", "en", "sap" );
 	assert.deepEqual( jQuery( "#en, #sndp" ).siblings().get(), set, "Check for unique results from siblings" );
 	assert.deepEqual( jQuery( "#option5a" ).siblings( "option[data-attr]" ).get(), q( "option5c" ), "Has attribute selector in siblings (#9261)" );
-	assert.equal( jQuery( "<a/>" ).siblings().length, 0, "Detached elements have no siblings (#11370)" );
+	assert.equal( jQuery( "<a></a>" ).siblings().length, 0, "Detached elements have no siblings (#11370)" );
 } );
 
 QUnit[ jQuery.find.compile ? "test" : "skip" ]( "siblings([String])", function( assert ) {
@@ -733,7 +733,7 @@ QUnit.test( "contents()", function( assert ) {
 
 	assert.equal( jQuery( "div", ibody ).text(), "span text", "Make sure the correct div is still left after deletion in IFrame" );
 
-	jQuery( "<table/>", ibody ).append( "<tr><td>cell</td></tr>" ).appendTo( ibody );
+	jQuery( "<table></table>", ibody ).append( "<tr><td>cell</td></tr>" ).appendTo( ibody );
 	jQuery( "table", ibody ).remove();
 	assert.equal( jQuery( "div", ibody ).length, 1, "Check for JS error on add and delete of a table in IFrame" );
 
@@ -761,7 +761,7 @@ QUnit.test( "contents() for <template />", function( assert ) {
 
 	assert.equal( contents.find( "span" ).text(), "Hello, Web Component!", "Find span in template and check its text" );
 
-	jQuery( "<div id='templateTest' />" ).append(
+	jQuery( "<div id='templateTest'></div>" ).append(
 			jQuery( jQuery.map( contents, function( node ) {
 					return document.importNode( node, true );
 			} ) )
@@ -808,6 +808,19 @@ QUnit.test( "contents() for <object />", function( assert ) {
 	jQuery( "#qunit-fixture" ).append( svgObject );
 } );
 
+QUnit.test( "contents() for <object /> with children", function( assert ) {
+	assert.expect( 1 );
+
+	var object = "<object type='application/x-shockwave-flash' width='200' height='300' id='penguin'>" +
+		"<param name='movie' value='flash/penguin.swf'>" +
+		"<param name='quality' value='high'>" +
+		"<img src='images/penguin.jpg' width='200' height='300' alt='Penguin'>" +
+	"</object>";
+
+	var contents = jQuery( object ).contents();
+	assert.equal( contents.length, 3, "Check object contents children are correct" );
+} );
+
 QUnit.test( "contents() for <frame />", function( assert ) {
 	assert.expect( 2 );
 
@@ -862,7 +875,7 @@ QUnit.test( "add(String selector)", function( assert ) {
 		"Check elements from document"
 	);
 
-	divs = jQuery( "<div/>" ).add( "#sndp" );
+	divs = jQuery( "<div></div>" ).add( "#sndp" );
 	assert.ok( divs[ 0 ].parentNode, "Sort with the disconnected node last (started with disconnected first)." );
 } );
 
@@ -880,7 +893,7 @@ QUnit.test( "add(String html)", function( assert ) {
 	assert.expect( 3 );
 
 	var x,
-		divs = jQuery( "#sndp" ).add( "<div/>" );
+		divs = jQuery( "#sndp" ).add( "<div></div>" );
 
 	assert.ok( !divs[ 1 ].parentNode, "Sort with the disconnected node last." );
 
@@ -893,7 +906,7 @@ QUnit.test( "add(jQuery)", function( assert ) {
 	assert.expect( 4 );
 
 	var x,
-		tmp = jQuery( "<div/>" );
+		tmp = jQuery( "<div></div>" );
 
 	x = jQuery( [] )
 	.add(
@@ -922,7 +935,7 @@ QUnit.test( "add(Element)", function( assert ) {
 	assert.expect( 2 );
 
 	var x,
-		tmp = jQuery( "<div/>" );
+		tmp = jQuery( "<div></div>" );
 
 	x = jQuery( [] ).add( jQuery( "<p id='x1'>xxx</p>" ).appendTo( tmp )[ 0 ] ).add( jQuery( "<p id='x2'>xxx</p>" ).appendTo( tmp )[ 0 ] );
 	assert.equal( x[ 0 ].id, "x1", "Check on-the-fly element1" );

diff --git a/test/unit/wrap.js b/test/unit/wrap.js
@@ -74,7 +74,7 @@ function testWrap( val, assert ) {
 		cacheLength++;
 	}
 
-	j = jQuery( "<label/>" ).wrap( val( "<li/>" ) );
+	j = jQuery( "<label></label>" ).wrap( val( "<li></li>" ) );
 	assert.equal(
 		j[ 0 ] .nodeName.toUpperCase(), "LABEL", "Element is a label"
 	);
@@ -90,7 +90,7 @@ function testWrap( val, assert ) {
 	);
 
 	// Wrap an element containing a text node
-	j = jQuery( "<span/>" ).wrap( "<div>test</div>" );
+	j = jQuery( "<span></span>" ).wrap( "<div>test</div>" );
 	assert.equal(
 		j[ 0 ].previousSibling.nodeType, 3, "Make sure the previous node is a text element"
 	);
@@ -112,7 +112,7 @@ function testWrap( val, assert ) {
 	);
 
 	// Wrap an element with a jQuery set
-	j = jQuery( "<span/>" ).wrap( jQuery( "<div></div>" ) );
+	j = jQuery( "<span></span>" ).wrap( jQuery( "<div></div>" ) );
 	assert.equal(
 		j[ 0 ].parentNode.nodeName.toLowerCase(), "div", "Wrapping works."
 	);
@@ -128,7 +128,7 @@ function testWrap( val, assert ) {
 		jQuery( this ).off();
 	} );
 
-	j = jQuery( "<span/>" ).wrap( result );
+	j = jQuery( "<span></span>" ).wrap( result );
 	assert.equal(
 		j[ 0 ].parentNode.nodeName.toLowerCase(), "div", "Wrapping works."
 	);
@@ -313,7 +313,7 @@ QUnit.test( "wrapInner(Element)", function( assert ) {
 	assert.expect( 5 );
 
 	var num,
-		div = jQuery( "<div/>" );
+		div = jQuery( "<div></div>" );
 
 	num = jQuery( "#first" ).children().length;
 	jQuery( "#first" ).wrapInner( document.getElementById( "empty" ) );
@@ -375,7 +375,7 @@ QUnit.test( "wrapInner(Function) returns Element", function( assert ) {
 
 	var num,
     val = manipulationFunctionReturningObj,
-		div = jQuery( "<div/>" );
+		div = jQuery( "<div></div>" );
 
 	num = jQuery( "#first" ).children().length;
 	jQuery( "#first" ).wrapInner( val( document.getElementById( "empty" ) ) );