");
 	equals( div.length, 4, "Correct number of elements generated for div hr code b" );
+	equals( div.parent().length, 0, "Make sure that the generated HTML has no parent." );
 
 	equals( jQuery([1,2,3]).get(1), 2, "Test passing an array to the factory" );
 
@@ -189,6 +192,75 @@ test("noConflict", function() {
 	jQuery = $$;
 });
 
+test("trim", function() {
+  expect(4);
+
+  var nbsp = String.fromCharCode(160);
+
+  equals( jQuery.trim("hello  "), "hello", "trailing space" );
+  equals( jQuery.trim("  hello"), "hello", "leading space" );
+  equals( jQuery.trim("  hello   "), "hello", "space on both sides" );
+  equals( jQuery.trim("  " + nbsp + "hello  " + nbsp + " "), "hello", " " );
+});
+
+test("isPlainObject", function() {
+	expect(14);
+
+	stop();
+
+	// The use case that we want to match
+	ok(jQuery.isPlainObject({}), "{}");
+	
+	// Not objects shouldn't be matched
+	ok(!jQuery.isPlainObject(""), "string");
+	ok(!jQuery.isPlainObject(0) && !jQuery.isPlainObject(1), "number");
+	ok(!jQuery.isPlainObject(true) && !jQuery.isPlainObject(false), "boolean");
+	ok(!jQuery.isPlainObject(null), "null");
+	ok(!jQuery.isPlainObject(undefined), "undefined");
+	
+	// Arrays shouldn't be matched
+	ok(!jQuery.isPlainObject([]), "array");
+ 
+	// Instantiated objects shouldn't be matched
+	ok(!jQuery.isPlainObject(new Date), "new Date");
+ 
+	var fn = function(){};
+ 
+	// Functions shouldn't be matched
+	ok(!jQuery.isPlainObject(fn), "fn");
+ 
+	// Again, instantiated objects shouldn't be matched
+	ok(!jQuery.isPlainObject(new fn), "new fn (no methods)");
+ 
+	// Makes the function a little more realistic
+	// (and harder to detect, incidentally)
+	fn.prototype = {someMethod: function(){}};
+ 
+	// Again, instantiated objects shouldn't be matched
+	ok(!jQuery.isPlainObject(new fn), "new fn");
+
+	// DOM Element
+	ok(!jQuery.isPlainObject(document.createElement("div")), "DOM Element");
+	
+	// Window
+	ok(!jQuery.isPlainObject(window), "window");
+ 
+	var iframe = document.createElement("iframe");
+	document.body.appendChild(iframe);
+
+	window.iframeDone = function(otherObject){
+		// Objects from other windows should be matched
+		ok(jQuery.isPlainObject(new otherObject), "new otherObject");
+		document.body.removeChild( iframe );
+		start();
+	};
+ 
+	var doc = iframe.contentDocument || iframe.contentWindow.document;
+	doc.open();
+	doc.write("");
+	doc.close();
+});
+
 test("isFunction", function() {
 	expect(19);
 
@@ -310,7 +382,7 @@ test("isXMLDoc - XML", function() {
 }
 
 test("jQuery('html')", function() {
-	expect(13);
+	expect(15);
 
 	reset();
 	jQuery.foo = false;
@@ -339,6 +411,9 @@ test("jQuery('html')", function() {
 	ok( j.length >= 2, "Check node,textnode,comment creation (some browsers delete comments)" );
 
 	ok( !jQuery("")[0].selected, "Make sure that options are auto-selected #2050" );
+
+	ok( jQuery("")[0], "Create a div with closing tag." );
+	ok( jQuery("")[0], "Create a table with closing tag." );
 });
 
 test("jQuery('html', context)", function() {
@@ -364,6 +439,16 @@ test("jQuery(selector, xml).text(str) - Loaded via XML document", function() {
 });
 }
 
+test("end()", function() {
+	expect(3);
+	equals( 'Yahoo', jQuery('#yahoo').parent().end().text(), 'Check for end' );
+	ok( jQuery('#yahoo').end(), 'Check for end with nothing to end' );
+
+	var x = jQuery('#yahoo');
+	x.parent();
+	equals( 'Yahoo', jQuery('#yahoo').text(), 'Check for non-destructive behaviour' );
+});
+
 test("length", function() {
 	expect(1);
 	equals( jQuery("p").length, 6, "Get Number of Elements Found" );
@@ -459,45 +544,83 @@ test("each(Function)", function() {
 	ok( pass, "Execute a function, Relative" );
 });
 
-test("index()", function() {
-	expect(1);
+test("slice()", function() {
+	expect(7);
+
+	var $links = jQuery("#ap a");
+
+	same( $links.slice(1,2).get(), q("groups"), "slice(1,2)" );
+	same( $links.slice(1).get(), q("groups", "anchor1", "mark"), "slice(1)" );
+	same( $links.slice(0,3).get(), q("google", "groups", "anchor1"), "slice(0,3)" );
+	same( $links.slice(-1).get(), q("mark"), "slice(-1)" );
 
-	equals( jQuery("#text2").index(), 2, "Returns the index of a child amongst its siblings" )
+	same( $links.eq(1).get(), q("groups"), "eq(1)" );
+	same( $links.eq('2').get(), q("anchor1"), "eq('2')" );
+	same( $links.eq(-1).get(), q("mark"), "eq(-1)" );
 });
 
-test("index(Object|String|undefined)", function() {
-	expect(16);
+test("first()/last()", function() {
+	expect(4);
+
+	var $links = jQuery("#ap a"), $none = jQuery("asdf");
+
+	same( $links.first().get(), q("google"), "first()" );
+	same( $links.last().get(), q("mark"), "last()" );
+
+	same( $none.first().get(), [], "first() none" );
+	same( $none.last().get(), [], "last() none" );
+});
+
+test("map()", function() {
+	expect(2);//expect(6);
+
+	same(
+		jQuery("#ap").map(function(){
+			return jQuery(this).find("a").get();
+		}).get(),
+		q("google", "groups", "anchor1", "mark"),
+		"Array Map"
+	);
+
+	same(
+		jQuery("#ap > a").map(function(){
+			return this.parentNode;
+		}).get(),
+		q("ap","ap","ap"),
+		"Single Map"
+	);
+
+	return;//these haven't been accepted yet
+
+	//for #2616
+	var keys = jQuery.map( {a:1,b:2}, function( v, k ){
+		return k;
+	}, [ ] );
+
+	equals( keys.join(""), "ab", "Map the keys from a hash to an array" );
 
-	var elements = jQuery([window, document]),
-		inputElements = jQuery('#radio1,#radio2,#check1,#check2');
-
-	// Passing a node
-	equals( elements.index(window), 0, "Check for index of elements" );
-	equals( elements.index(document), 1, "Check for index of elements" );
-	equals( inputElements.index(document.getElementById('radio1')), 0, "Check for index of elements" );
-	equals( inputElements.index(document.getElementById('radio2')), 1, "Check for index of elements" );
-	equals( inputElements.index(document.getElementById('check1')), 2, "Check for index of elements" );
-	equals( inputElements.index(document.getElementById('check2')), 3, "Check for index of elements" );
-	equals( inputElements.index(window), -1, "Check for not found index" );
-	equals( inputElements.index(document), -1, "Check for not found index" );
-
-	// Passing a jQuery object
-	// enabled since [5500]
-	equals( elements.index( elements ), 0, "Pass in a jQuery object" );
-	equals( elements.index( elements.eq(1) ), 1, "Pass in a jQuery object" );
-	equals( jQuery("#form :radio").index( jQuery("#radio2") ), 1, "Pass in a jQuery object" );
-
-	// Passing a selector or nothing
-	// enabled since [6330]
-	equals( jQuery('#text2').index(), 2, "Check for index amongst siblings" );
-	equals( jQuery('#form').children().eq(4).index(), 4, "Check for index amongst siblings" );
-	equals( jQuery('#radio2').index('#form :radio') , 1, "Check for index within a selector" );
-	equals( jQuery('#form :radio').index( jQuery('#radio2') ), 1, "Check for index within a selector" );
-	equals( jQuery('#radio2').index('#form :text') , -1, "Check for index not found within a selector" );
+	var values = jQuery.map( {a:1,b:2}, function( v, k ){
+		return v;
+	}, [ ] );
+
+	equals( values.join(""), "12", "Map the values from a hash to an array" );
+
+	var scripts = document.getElementsByTagName("script");
+	var mapped = jQuery.map( scripts, function( v, k ){
+		return v;
+	}, {length:0} );
+
+	equals( mapped.length, scripts.length, "Map an array(-like) to a hash" );
+
+	var flat = jQuery.map( Array(4), function( v, k ){
+		return k % 2 ? k : [k,k,k];//try mixing array and regular returns
+	});
+
+	equals( flat.join(""), "00012223", "try the new flatten technique(#2616)" );
 });
 
 test("jQuery.merge()", function() {
-	expect(6);
+	expect(8);
 
 	var parse = jQuery.merge;
 
@@ -511,10 +634,14 @@ test("jQuery.merge()", function() {
 
 	// Fixed at [5998], #3641
 	same( parse([-2,-1], [0,1,2]), [-2,-1,0,1,2], "Second array including a zero (falsy)");
+	
+	// After fixing #5527
+	same( parse([], [null, undefined]), [null, undefined], "Second array including null and undefined values");
+	same( parse({length:0}, [1,2]), {length:2, 0:1, 1:2}, "First array like");
 });
 
 test("jQuery.extend(Object, Object)", function() {
-	expect(23);
+	expect(25);
 
 	var settings = { xnumber1: 5, xnumber2: 7, xstring1: "peter", xstring2: "pan" },
 		options = { xnumber2: 1, xstring2: "x", xxx: "newstring" },
@@ -550,10 +677,20 @@ test("jQuery.extend(Object, Object)", function() {
 	same( empty.foo, optionsWithDate.foo, "Dates copy correctly" );
 
 	var myKlass = function() {};
+	var customObject = new myKlass();
+	var optionsWithCustomObject = { foo: { date: customObject } };
+	empty = {};
+	jQuery.extend(true, empty, optionsWithCustomObject);
+	ok( empty.foo && empty.foo.date === customObject, "Custom objects copy correctly (no methods)" );
+	
+	// Makes the class a little more realistic
+	myKlass.prototype = { someMethod: function(){} };
 	empty = {};
-	var optionsWithCustomObject = { foo: { date: new myKlass } };
 	jQuery.extend(true, empty, optionsWithCustomObject);
-	same( empty.foo, optionsWithCustomObject.foo, "Custom objects copy correctly" );
+	ok( empty.foo && empty.foo.date === customObject, "Custom objects copy correctly" );
+	
+	var ret = jQuery.extend(true, { foo: 4 }, { foo: new Number(5) } );
+	ok( ret.foo == 5, "Wrapped numbers copy correctly" );
 
 	var nullUndef;
 	nullUndef = jQuery.extend({}, options, { xnumber2: null });
@@ -638,7 +775,7 @@ test("jQuery.each(Object,Function)", function() {
 });
 
 test("jQuery.makeArray", function(){
-	expect(15);
+	expect(17);
 
 	equals( jQuery.makeArray(jQuery('html>*'))[0].nodeName.toUpperCase(), "HEAD", "Pass makeArray a jQuery object" );
 
@@ -671,6 +808,10 @@ test("jQuery.makeArray", function(){
 	equals( jQuery.makeArray(/a/)[0].constructor, RegExp, "Pass makeArray a regex" );
 
 	ok( jQuery.makeArray(document.getElementById('form')).length >= 13, "Pass makeArray a form (treat as elements)" );
+
+	// For #5610
+	same( jQuery.makeArray({'length': '0'}), [], "Make sure object is coerced properly.");
+	same( jQuery.makeArray({'length': '5'}), [], "Make sure object is coerced properly.");
 });
 
 test("jQuery.isEmptyObject", function(){