Build: Enable "unused" option in jshint - Remove unused variables from codebase. - Closes gh-788

Squashed commit of the following:

commit 7f19f92c646f180bc067bb24123175251a64a9d6
Author: Mike Sherov <mike.sherov@gmail.com>
Date:   Tue Oct 23 10:34:28 2012 -0400

    put back in fake args for signatures that we want to keep

commit 257505a9e69da0c53e3a989dab87a13112045a29
Author: Mike Sherov <mike.sherov@gmail.com>
Date:   Tue Oct 23 08:10:20 2012 -0400

    changes per @scott_gonzalez

commit 12725480cb58e70865e5aa6e735009b6b035c8f3
Author: Mike Sherov <mike.sherov@gmail.com>
Date:   Mon Oct 22 22:54:05 2012 -0400

    clean up unused vars in ui directory

commit 563595e7aee5d4a5c096b2d1de655abdf920aacd
Author: Mike Sherov <mike.sherov@gmail.com>
Date:   Mon Oct 22 22:37:42 2012 -0400

    clean up unused vars in grunt and tests

56 files changed, 282 insertions, 311 deletions

diff --git a/.jshintrc b/.jshintrc
index e22109220..d6966c51d 100644
--- a/.jshintrc
+++ b/.jshintrc
@@ -7,5 +7,6 @@
 	"node": true,
 	"onevar": true,
 	"trailing": true,
-	"undef": true
+	"undef": true,
+	"unused": true
 }
diff --git a/build/release/release.js b/build/release/release.js
index ae705a90f..2227bf0e6 100644
--- a/build/release/release.js
+++ b/build/release/release.js
@@ -425,7 +425,7 @@ function abort( msg ) {
 function walk( methods ) {
 	var method = methods.shift();
 
-	function next( error ) {
+	function next() {
 		if ( methods.length ) {
 			walk( methods );
 		}
diff --git a/build/tasks/build.js b/build/tasks/build.js
index b59c728d3..18e427a56 100644
--- a/build/tasks/build.js
+++ b/build/tasks/build.js
@@ -146,7 +146,7 @@ grunt.registerMultiTask( "zip", "Create a zip file for release", function() {
 		opts: {
 			cwd: 'dist'
 		}
-	}, function( err, result ) {
+	}, function( err ) {
 		if ( err ) {
 			grunt.log.error( err );
 			done();
diff --git a/tests/.jshintrc b/tests/.jshintrc
index 20094d436..c0f0f8d53 100644
--- a/tests/.jshintrc
+++ b/tests/.jshintrc
@@ -11,8 +11,8 @@
 	"onevar": true,
 	"trailing": true,
 	"undef": true,
+	"unused": true,
 	"predef": [
-		"addMonths",
 		"asyncTest",
 		"container",
 		"deepEqual",
@@ -29,8 +29,6 @@
 		"Globalize",
 		"heightAfter",
 		"init",
-		"isNotOpen",
-		"isOpen",
 		"modal",
 		"module",
 		"moved",
@@ -38,15 +36,7 @@
 		"offsetAfter",
 		"offsetBefore",
 		"ok",
-		"PROP_NAME",
 		"QUnit",
-		"restoreScroll",
-		"shouldBeDroppable",
-		"shouldmove",
-		"shouldNotBeDroppable",
-		"shouldnotmove",
-		"shouldnotresize",
-		"shouldresize",
 		"start",
 		"strictEqual",
 		"stop",
diff --git a/tests/unit/autocomplete/autocomplete_core.js b/tests/unit/autocomplete/autocomplete_core.js
index f0ad36a57..f2062cacd 100644
--- a/tests/unit/autocomplete/autocomplete_core.js
+++ b/tests/unit/autocomplete/autocomplete_core.js
@@ -109,8 +109,7 @@ test( "allow form submit on enter when menu is not active", function() {
 	function arrowsMoveFocus( id, isKeyUp ) {
 		expect( 1 );
 
-		var didMove = false,
-			element = $( id ).autocomplete({
+		var element = $( id ).autocomplete({
 				source: [ "a" ],
 				delay: 0,
 				minLength: 0
diff --git a/tests/unit/autocomplete/autocomplete_events.js b/tests/unit/autocomplete/autocomplete_events.js
index 082263a35..fb1cf73a6 100644
--- a/tests/unit/autocomplete/autocomplete_events.js
+++ b/tests/unit/autocomplete/autocomplete_events.js
@@ -39,7 +39,7 @@ $.each([
 						], "response ui.content" );
 						ui.content.splice( 0, 1 );
 					},
-					open: function( event ) {
+					open: function() {
 						ok( menu.is( ":visible" ), "menu open on open" );
 					},
 					focus: function( event, ui ) {
@@ -127,7 +127,7 @@ asyncTest( "cancel focus", function() {
 		element = $( "#autocomplete" ).autocomplete({
 			delay: 0,
 			source: data,
-			focus: function( event, ui ) {
+			focus: function() {
 				$( this ).val( customVal );
 				return false;
 			}
@@ -146,7 +146,7 @@ asyncTest( "cancel select", function() {
 		element = $( "#autocomplete" ).autocomplete({
 			delay: 0,
 			source: data,
-			select: function( event, ui ) {
+			select: function() {
 				$( this ).val( customVal );
 				return false;
 			}
diff --git a/tests/unit/autocomplete/autocomplete_options.js b/tests/unit/autocomplete/autocomplete_options.js
index 1ab40f36c..8331c53d5 100644
--- a/tests/unit/autocomplete/autocomplete_options.js
+++ b/tests/unit/autocomplete/autocomplete_options.js
@@ -33,7 +33,7 @@ function autoFocusTest( afValue, focusedLength ) {
 		autoFocus: afValue,
 		delay: 0,
 		source: data,
-		open: function( event, ui ) {
+		open: function() {
 			equal( element.autocomplete( "widget" ).children( ".ui-menu-item:first" ).find( ".ui-state-focus" ).length,
 				focusedLength, "first item is " + (afValue ? "" : "not") + " auto focused" );
 			start();
diff --git a/tests/unit/button/button_events.js b/tests/unit/button/button_events.js
index a2154021d..40d2a1a96 100644
--- a/tests/unit/button/button_events.js
+++ b/tests/unit/button/button_events.js
@@ -1,7 +1,7 @@
 /*
  * button_events.js
  */
-(function($) {
+(function() {
 
 module("button: events");
 
diff --git a/tests/unit/datepicker/datepicker_core.js b/tests/unit/datepicker/datepicker_core.js
index e17b239e5..4abdfd106 100644
--- a/tests/unit/datepicker/datepicker_core.js
+++ b/tests/unit/datepicker/datepicker_core.js
@@ -12,31 +12,19 @@ function equalsDate(d1, d2, message) {
 	equal(d1.toString(), d2.toString(), message);
 }
 
-function equalsDateArray(a1, a2, message) {
-	if (!a1 || !a2) {
-		ok(false, message + ' - missing dates');
-		return;
-	}
-	a1[0] = (a1[0] ? new Date(a1[0].getFullYear(), a1[0].getMonth(), a1[0].getDate()) : '');
-	a1[1] = (a1[1] ? new Date(a1[1].getFullYear(), a1[1].getMonth(), a1[1].getDate()) : '');
-	a2[0] = (a2[0] ? new Date(a2[0].getFullYear(), a2[0].getMonth(), a2[0].getDate()) : '');
-	a2[1] = (a2[1] ? new Date(a2[1].getFullYear(), a2[1].getMonth(), a2[1].getDate()) : '');
-	deepEqual(a1, a2, message);
-}
-
-function addMonths(date, offset) {
+TestHelpers.addMonths = function(date, offset) {
 	var maxDay = 32 - new Date(date.getFullYear(), date.getMonth() + offset, 32).getDate();
 	date.setDate(Math.min(date.getDate(), maxDay));
 	date.setMonth(date.getMonth() + offset);
 	return date;
-}
+};
 
 function init(id, options) {
 	$.datepicker.setDefaults($.datepicker.regional['']);
 	return $(id).datepicker($.extend({showAnim: ''}, options || {}));
 }
 
-var PROP_NAME = 'datepicker';
+TestHelpers.PROP_NAME = 'datepicker';
 
 (function($) {
 
diff --git a/tests/unit/datepicker/datepicker_defaults.js b/tests/unit/datepicker/datepicker_defaults.js
index 28e150791..1e7d90852 100644
--- a/tests/unit/datepicker/datepicker_defaults.js
+++ b/tests/unit/datepicker/datepicker_defaults.js
@@ -2,8 +2,10 @@
  * datepicker_defaults.js
  */
 
+/*
 var datepicker_defaults = {
 	disabled: false
 };
 
-//TestHelpers.commonWidgetTests('datepicker', { defaults: datepicker_defaults });
+TestHelpers.commonWidgetTests('datepicker', { defaults: datepicker_defaults });
+*/
diff --git a/tests/unit/datepicker/datepicker_events.js b/tests/unit/datepicker/datepicker_events.js
index e35be62ce..b71067472 100644
--- a/tests/unit/datepicker/datepicker_events.js
+++ b/tests/unit/datepicker/datepicker_events.js
@@ -30,7 +30,7 @@ test('events', function() {
 	inp.val('').datepicker('show').
 		simulate('keydown', {keyCode: $.ui.keyCode.ENTER});
 	equal(selectedThis, inp[0], 'Callback selected this');
-	equal(selectedInst, $.data(inp[0], PROP_NAME), 'Callback selected inst');
+	equal(selectedInst, $.data(inp[0], TestHelpers.PROP_NAME), 'Callback selected inst');
 	equal(selectedDate, $.datepicker.formatDate('mm/dd/yy', date),
 		'Callback selected date');
 	inp.val('').datepicker('show').
@@ -59,7 +59,7 @@ test('events', function() {
 	inp.simulate('keydown', {keyCode: $.ui.keyCode.PAGE_UP});
 	date.setMonth(date.getMonth() - 1);
 	equal(selectedThis, inp[0], 'Callback change month/year this');
-	equal(selectedInst, $.data(inp[0], PROP_NAME), 'Callback change month/year inst');
+	equal(selectedInst, $.data(inp[0], TestHelpers.PROP_NAME), 'Callback change month/year inst');
 	equal(selectedDate, newMonthYear(date),
 		'Callback change month/year date - pgup');
 	inp.simulate('keydown', {keyCode: $.ui.keyCode.PAGE_DOWN});
@@ -107,7 +107,7 @@ test('events', function() {
 		val('').datepicker('show').
 		simulate('keydown', {keyCode: $.ui.keyCode.ESCAPE});
 	equal(selectedThis, inp[0], 'Callback close this');
-	equal(selectedInst, $.data(inp[0], PROP_NAME), 'Callback close inst');
+	equal(selectedInst, $.data(inp[0], TestHelpers.PROP_NAME), 'Callback close inst');
 	equal(selectedDate, '', 'Callback close date - esc');
 	inp.val('').datepicker('show').
 		simulate('keydown', {keyCode: $.ui.keyCode.ENTER});
diff --git a/tests/unit/datepicker/datepicker_methods.js b/tests/unit/datepicker/datepicker_methods.js
index e7aa7602e..5e692d1a0 100644
--- a/tests/unit/datepicker/datepicker_methods.js
+++ b/tests/unit/datepicker/datepicker_methods.js
@@ -10,56 +10,56 @@ test('destroy', function() {
 	var inl,
 		inp = init('#inp');
 	ok(inp.is('.hasDatepicker'), 'Default - marker class set');
-	ok($.data(inp[0], PROP_NAME), 'Default - instance present');
+	ok($.data(inp[0], TestHelpers.PROP_NAME), 'Default - instance present');
 	ok(inp.next().is('#alt'), 'Default - button absent');
 	inp.datepicker('destroy');
 	inp = $('#inp');
 	ok(!inp.is('.hasDatepicker'), 'Default - marker class cleared');
-	ok(!$.data(inp[0], PROP_NAME), 'Default - instance absent');
+	ok(!$.data(inp[0], TestHelpers.PROP_NAME), 'Default - instance absent');
 	ok(inp.next().is('#alt'), 'Default - button absent');
 	// With button
 	inp= init('#inp', {showOn: 'both'});
 	ok(inp.is('.hasDatepicker'), 'Button - marker class set');
-	ok($.data(inp[0], PROP_NAME), 'Button - instance present');
+	ok($.data(inp[0], TestHelpers.PROP_NAME), 'Button - instance present');
 	ok(inp.next().text() === '...', 'Button - button added');
 	inp.datepicker('destroy');
 	inp = $('#inp');
 	ok(!inp.is('.hasDatepicker'), 'Button - marker class cleared');
-	ok(!$.data(inp[0], PROP_NAME), 'Button - instance absent');
+	ok(!$.data(inp[0], TestHelpers.PROP_NAME), 'Button - instance absent');
 	ok(inp.next().is('#alt'), 'Button - button removed');
 	// With append text
 	inp = init('#inp', {appendText: 'Testing'});
 	ok(inp.is('.hasDatepicker'), 'Append - marker class set');
-	ok($.data(inp[0], PROP_NAME), 'Append - instance present');
+	ok($.data(inp[0], TestHelpers.PROP_NAME), 'Append - instance present');
 	ok(inp.next().text() === 'Testing', 'Append - append text added');
 	inp.datepicker('destroy');
 	inp = $('#inp');
 	ok(!inp.is('.hasDatepicker'), 'Append - marker class cleared');
-	ok(!$.data(inp[0], PROP_NAME), 'Append - instance absent');
+	ok(!$.data(inp[0], TestHelpers.PROP_NAME), 'Append - instance absent');
 	ok(inp.next().is('#alt'), 'Append - append text removed');
 	// With both
 	inp= init('#inp', {showOn: 'both', buttonImageOnly: true,
 		buttonImage: 'img/calendar.gif', appendText: 'Testing'});
 	ok(inp.is('.hasDatepicker'), 'Both - marker class set');
-	ok($.data(inp[0], PROP_NAME), 'Both - instance present');
+	ok($.data(inp[0], TestHelpers.PROP_NAME), 'Both - instance present');
 	ok(inp.next()[0].nodeName.toLowerCase() === 'img', 'Both - button added');
 	ok(inp.next().next().text() === 'Testing', 'Both - append text added');
 	inp.datepicker('destroy');
 	inp = $('#inp');
 	ok(!inp.is('.hasDatepicker'), 'Both - marker class cleared');
-	ok(!$.data(inp[0], PROP_NAME), 'Both - instance absent');
+	ok(!$.data(inp[0], TestHelpers.PROP_NAME), 'Both - instance absent');
 	ok(inp.next().is('#alt'), 'Both - button and append text absent');
 	// Inline
 	inl = init('#inl');
 	ok(inl.is('.hasDatepicker'), 'Inline - marker class set');
 	ok(inl.html() !== '', 'Inline - datepicker present');
-	ok($.data(inl[0], PROP_NAME), 'Inline - instance present');
+	ok($.data(inl[0], TestHelpers.PROP_NAME), 'Inline - instance present');
 	ok(inl.next().length === 0 || inl.next().is('p'), 'Inline - button absent');
 	inl.datepicker('destroy');
 	inl = $('#inl');
 	ok(!inl.is('.hasDatepicker'), 'Inline - marker class cleared');
 	ok(inl.html() === '', 'Inline - datepicker absent');
-	ok(!$.data(inl[0], PROP_NAME), 'Inline - instance absent');
+	ok(!$.data(inl[0], TestHelpers.PROP_NAME), 'Inline - instance absent');
 	ok(inl.next().length === 0 || inl.next().is('p'), 'Inline - button absent');
 });
 
diff --git a/tests/unit/datepicker/datepicker_options.js b/tests/unit/datepicker/datepicker_options.js
index a01b9c7e0..7d3217364 100644
--- a/tests/unit/datepicker/datepicker_options.js
+++ b/tests/unit/datepicker/datepicker_options.js
@@ -8,7 +8,7 @@ module("datepicker: options");
 
 test('setDefaults', function() {
 	expect( 3 );
-	var inp = init('#inp');
+	init('#inp');
 	equal($.datepicker._defaults.showOn, 'focus', 'Initial showOn');
 	$.datepicker.setDefaults({showOn: 'button'});
 	equal($.datepicker._defaults.showOn, 'button', 'Change default showOn');
@@ -19,7 +19,7 @@ test('setDefaults', function() {
 test('option', function() {
 	expect( 17 );
 	var inp = init('#inp'),
-	inst = $.data(inp[0], PROP_NAME);
+	inst = $.data(inp[0], TestHelpers.PROP_NAME);
 	// Set option
 	equal(inst.settings.showOn, null, 'Initial setting showOn');
 	equal($.datepicker._get(inst, 'showOn'), 'focus', 'Initial instance showOn');
@@ -51,7 +51,7 @@ test('option', function() {
 test('change', function() {
 	expect( 12 );
 	var inp = init('#inp'),
-	inst = $.data(inp[0], PROP_NAME);
+	inst = $.data(inp[0], TestHelpers.PROP_NAME);
 	equal(inst.settings.showOn, null, 'Initial setting showOn');
 	equal($.datepicker._get(inst, 'showOn'), 'focus', 'Initial instance showOn');
 	equal($.datepicker._defaults.showOn, 'focus', 'Initial default showOn');
@@ -215,12 +215,12 @@ test('defaultDate', function() {
 	inp.datepicker('option', {defaultDate: ' -1 m '}).
 		datepicker('hide').val('').datepicker('show').
 		simulate('keydown', {keyCode: $.ui.keyCode.ENTER});
-	date = addMonths(new Date(), -1);
+	date = TestHelpers.addMonths(new Date(), -1);
 	equalsDate(inp.datepicker('getDate'), date, 'Default date -1 m');
 	inp.datepicker('option', {defaultDate: '+2M'}).
 		datepicker('hide').val('').datepicker('show').
 		simulate('keydown', {keyCode: $.ui.keyCode.ENTER});
-	date = addMonths(new Date(), 2);
+	date = TestHelpers.addMonths(new Date(), 2);
 	equalsDate(inp.datepicker('getDate'), date, 'Default date +2M');
 	inp.datepicker('option', {defaultDate: '-2y'}).
 		datepicker('hide').val('').datepicker('show').
@@ -236,7 +236,7 @@ test('defaultDate', function() {
 	inp.datepicker('option', {defaultDate: '+1M +10d'}).
 		datepicker('hide').val('').datepicker('show').
 		simulate('keydown', {keyCode: $.ui.keyCode.ENTER});
-	date = addMonths(new Date(), 1);
+	date = TestHelpers.addMonths(new Date(), 1);
 	date.setDate(date.getDate() + 10);
 	equalsDate(inp.datepicker('getDate'), date, 'Default date +1M +10d');
 	// String date values
@@ -380,7 +380,7 @@ test('minMax', function() {
 		simulate('keydown', {keyCode: $.ui.keyCode.ENTER});
 	equalsDate(inp.datepicker('getDate'), date,
 		'Min/max - -1w, +1 M +10 D - ctrl+pgup');
-	date = addMonths(new Date(), 1);
+	date = TestHelpers.addMonths(new Date(), 1);
 	date.setDate(date.getDate() + 10);
 	inp.val('').datepicker('show');
 	inp.simulate('keydown', {ctrlKey: true, keyCode: $.ui.keyCode.PAGE_DOWN}).
@@ -665,16 +665,6 @@ function beforeDay(date) {
 		(date.getDate() % 3 === 0 ? 'Divisble by 3' : '')];
 }
 
-function calcWeek(date) {
-	var doy = date.getDate() + 6,
-		m = date.getMonth() - 1;
-	for (; m >= 0; m--) {
-		doy += $.datepicker._getDaysInMonth(date.getFullYear(), m);
-	}
-	// Simple count from 01/01 starting at week 1
-	return Math.floor(doy / 7);
-}
-
 test('callbacks', function() {
 	expect( 13 );
 	// Before show
diff --git a/tests/unit/datepicker/datepicker_tickets.js b/tests/unit/datepicker/datepicker_tickets.js
index 57b25c3ff..ff5dfde63 100644
--- a/tests/unit/datepicker/datepicker_tickets.js
+++ b/tests/unit/datepicker/datepicker_tickets.js
@@ -8,7 +8,7 @@ module("datepicker: tickets");
 // http://forum.jquery.com/topic/several-breaking-changes-in-jquery-ui-1-8rc1
 test('beforeShowDay-getDate', function() {
 	expect( 3 );
-	var inp = init('#inp', {beforeShowDay: function(date) { inp.datepicker('getDate'); return [true, '']; }}),
+	var inp = init('#inp', {beforeShowDay: function() { inp.datepicker('getDate'); return [true, '']; }}),
 		dp = $('#ui-datepicker-div');
 	inp.val('01/01/2010').datepicker('show');
 	// contains non-breaking space
diff --git a/tests/unit/dialog/dialog_core.js b/tests/unit/dialog/dialog_core.js
index e0a5c8701..a9e5e9be2 100644
--- a/tests/unit/dialog/dialog_core.js
+++ b/tests/unit/dialog/dialog_core.js
@@ -12,13 +12,13 @@ function dlg() {
 	return el.dialog('widget');
 }
 
-function isOpen(why) {
+TestHelpers.isOpen = function(why) {
 	ok(dlg().is(":visible"), why);
-}
+};
 
-function isNotOpen(why) {
+TestHelpers.isNotOpen = function(why) {
 	ok(!dlg().is(":visible"), why);
-}
+};
 
 function drag(handle, dx, dy) {
 	var d = dlg();
@@ -38,51 +38,43 @@ function drag(handle, dx, dy) {
 	widthAfter = d.width();
 }
 
-function moved(dx, dy, msg) {
+TestHelpers.dialogMoved = function(dx, dy, msg) {
 	msg = msg ? msg + "." : "";
 	var actual = { left: Math.round(offsetAfter.left), top: Math.round(offsetAfter.top) },
 		expected = { left: Math.round(offsetBefore.left + dx), top: Math.round(offsetBefore.top + dy) };
 	deepEqual(actual, expected, 'dragged[' + dragged.dx + ', ' + dragged.dy + '] ' + msg);
-}
+};
 
-function shouldmove(why) {
+TestHelpers.shouldmove = function(why) {
 	var handle = $(".ui-dialog-titlebar", dlg());
 	drag(handle, 50, -50);
-	moved(50, -50, why);
-}
+	TestHelpers.dialogMoved(50, -50, why);
+};
 
-function shouldnotmove(why) {
+TestHelpers.shouldnotmove = function(why) {
 	var handle = $(".ui-dialog-titlebar", dlg());
 	drag(handle, 50, -50);
-	moved(0, 0, why);
-}
+	TestHelpers.dialogMoved(0, 0, why);
+};
 
-function resized(dw, dh, msg) {
+TestHelpers.resized = function(dw, dh, msg) {
 	msg = msg ? msg + "." : "";
 	var actual = { width: widthAfter, height: heightAfter },
 		expected = { width: widthBefore + dw, height: heightBefore + dh };
 	deepEqual(actual, expected, 'resized[' + dragged.dx + ', ' + dragged.dy + '] ' + msg);
-}
+};
 
-function shouldresize(why) {
+TestHelpers.shouldresize = function(why) {
 	var handle = $(".ui-resizable-se", dlg());
 	drag(handle, 50, 50);
-	resized(50, 50, why);
-}
+	TestHelpers.resized(50, 50, why);
+};
 
-function shouldnotresize(why) {
+TestHelpers.shouldnotresize = function(why) {
 	var handle = $(".ui-resizable-se", dlg());
 	drag(handle, 50, 50);
-	resized(0, 0, why);
-}
-
-function broder(el, side){
-	return parseInt(el.css('border-' + side + '-width'), 10);
-}
-
-function margin(el, side) {
-	return parseInt(el.css('margin-' + side), 10);
-}
+	TestHelpers.resized(0, 0, why);
+};
 
 (function($) {
 
diff --git a/tests/unit/dialog/dialog_events.js b/tests/unit/dialog/dialog_events.js
index 515bebdc1..38b75a714 100644
--- a/tests/unit/dialog/dialog_events.js
+++ b/tests/unit/dialog/dialog_events.js
@@ -244,7 +244,7 @@ test("beforeClose", function() {
 		}
 	});
 	el.dialog('close');
-	isOpen('beforeClose callback should prevent dialog from closing');
+	TestHelpers.isOpen('beforeClose callback should prevent dialog from closing');
 	el.remove();
 
 	el = $('<div></div>').dialog();
@@ -256,7 +256,7 @@ test("beforeClose", function() {
 		return false;
 	});
 	el.dialog('close');
-	isOpen('beforeClose callback should prevent dialog from closing');
+	TestHelpers.isOpen('beforeClose callback should prevent dialog from closing');
 	el.remove();
 
 	el = $('<div></div>').dialog().bind('dialogbeforeclose', function(ev, ui) {
@@ -266,7 +266,7 @@ test("beforeClose", function() {
 		return false;
 	});
 	el.dialog('close');
-	isOpen('dialogbeforeclose event should prevent dialog from closing');
+	TestHelpers.isOpen('dialogbeforeclose event should prevent dialog from closing');
 	el.remove();
 });
 
diff --git a/tests/unit/dialog/dialog_methods.js b/tests/unit/dialog/dialog_methods.js
index ba0c2bd41..3c80a9bea 100644
--- a/tests/unit/dialog/dialog_methods.js
+++ b/tests/unit/dialog/dialog_methods.js
@@ -25,7 +25,7 @@ test("init", function() {
 	ok(true, '.dialog() called on disconnected DOMElement - removed');
 
 	el = $('<div></div>').dialog();
-	var foo = el.dialog("option", "foo");
+	el.dialog("option", "foo");
 	el.remove();
 	ok(true, 'arbitrary option getter after init');
 
diff --git a/tests/unit/dialog/dialog_options.js b/tests/unit/dialog/dialog_options.js
index ba217c6f4..1c823868e 100644
--- a/tests/unit/dialog/dialog_options.js
+++ b/tests/unit/dialog/dialog_options.js
@@ -9,11 +9,11 @@ test("autoOpen", function() {
 	expect(2);
 
 	el = $('<div></div>').dialog({ autoOpen: false });
-		isNotOpen('.dialog({ autoOpen: false })');
+	TestHelpers.isNotOpen('.dialog({ autoOpen: false })');
 	el.remove();
 
 	el = $('<div></div>').dialog({ autoOpen: true });
-		isOpen('.dialog({ autoOpen: true })');
+	TestHelpers.isOpen('.dialog({ autoOpen: true })');
 	el.remove();
 });
 
@@ -22,12 +22,12 @@ test("buttons", function() {
 
 	var btn, i, newButtons,
 		buttons = {
-		"Ok": function(ev, ui) {
+		"Ok": function( ev ) {
 			ok(true, "button click fires callback");
 			equal(this, el[0], "context of callback");
 			equal(ev.target, btn[0], "event target");
 		},
-		"Cancel": function(ev, ui) {
+		"Cancel": function( ev ) {
 			ok(true, "button click fires callback");
 			equal(this, el[0], "context of callback");
 			equal(ev.target, btn[1], "event target");
@@ -39,7 +39,7 @@ test("buttons", function() {
 	equal(btn.length, 2, "number of buttons");
 
 	i = 0;
-	$.each(buttons, function(key, val) {
+	$.each(buttons, function( key ) {
 		equal(btn.eq(i).text(), key, "text of button " + (i+1));
 		i++;
 	});
@@ -50,7 +50,7 @@ test("buttons", function() {
 	btn.trigger("click");
 
 	newButtons = {
-		"Close": function(ev, ui) {
+		"Close": function( ev ) {
 			ok(true, "button click fires callback");
 			equal(this, el[0], "context of callback");
 			equal(ev.target, btn[0], "event target");
@@ -66,7 +66,7 @@ test("buttons", function() {
 	btn.trigger('click');
 
 	i = 0;
-	$.each(newButtons, function(key, val) {
+	$.each(newButtons, function( key ) {
 		equal(btn.eq(i).text(), key, "text of button " + (i+1));
 		i += 1;
 	});
@@ -166,15 +166,15 @@ test("draggable", function() {
 	expect(4);
 
 	el = $('<div></div>').dialog({ draggable: false });
-		shouldnotmove();
+		TestHelpers.shouldnotmove();
 		el.dialog('option', 'draggable', true);
-		shouldmove();
+		TestHelpers.shouldmove();
 	el.remove();
 
 	el = $('<div></div>').dialog({ draggable: true });
-		shouldmove();
+		TestHelpers.shouldmove();
 		el.dialog('option', 'draggable', false);
-		shouldnotmove();
+		TestHelpers.shouldnotmove();
 	el.remove();
 });
 
@@ -395,15 +395,15 @@ test("resizable", function() {
 	expect(4);
 
 	el = $('<div></div>').dialog();
-		shouldresize("[default]");
+		TestHelpers.shouldresize("[default]");
 		el.dialog('option', 'resizable', false);
-		shouldnotresize('disabled after init');
+		TestHelpers.shouldnotresize('disabled after init');
 	el.remove();
 
 	el = $('<div></div>').dialog({ resizable: false });
-		shouldnotresize("disabled in init options");
+		TestHelpers.shouldnotresize("disabled in init options");
 		el.dialog('option', 'resizable', true);
-		shouldresize('enabled after init');
+		TestHelpers.shouldresize('enabled after init');
 	el.remove();
 });
 
diff --git a/tests/unit/dialog/dialog_tickets.js b/tests/unit/dialog/dialog_tickets.js
index e17d55a15..cf4ab0219 100644
--- a/tests/unit/dialog/dialog_tickets.js
+++ b/tests/unit/dialog/dialog_tickets.js
@@ -39,18 +39,18 @@ test("#4826: setting resizable false toggles resizable on dialog", function() {
 	var i;
 
 	el = $('<div></div>').dialog({ resizable: false });
-	shouldnotresize("[default]");
+	TestHelpers.shouldnotresize("[default]");
 	for (i=0; i<2; i++) {
 		el.dialog('close').dialog('open');
-		shouldnotresize('initialized with resizable false toggle ('+ (i+1) +')');
+		TestHelpers.shouldnotresize('initialized with resizable false toggle ('+ (i+1) +')');
 	}
 	el.remove();
 
 	el = $('<div></div>').dialog({ resizable: true });
-	shouldresize("[default]");
+	TestHelpers.shouldresize("[default]");
 	for (i=0; i<2; i++) {
 		el.dialog('close').dialog('option', 'resizable', false).dialog('open');
-		shouldnotresize('set option resizable false toggle ('+ (i+1) +')');
+		TestHelpers.shouldnotresize('set option resizable false toggle ('+ (i+1) +')');
 	}
 	el.remove();
 
diff --git a/tests/unit/draggable/draggable_core.js b/tests/unit/draggable/draggable_core.js
index 9193881ad..80d9ca83e 100644
--- a/tests/unit/draggable/draggable_core.js
+++ b/tests/unit/draggable/draggable_core.js
@@ -5,7 +5,6 @@
 var el, offsetBefore, offsetAfter, dragged;
 
 function drag(handle, dx, dy) {
-	var element = el.data("draggable").element;
 	offsetBefore = el.offset();
 	$(handle).simulate("drag", {
 		dx: dx || 0,
@@ -22,8 +21,8 @@ function moved(dx, dy, msg) {
 	deepEqual(actual, expected, 'dragged[' + dragged.dx + ', ' + dragged.dy + '] ' + msg);
 }
 
-function restoreScroll(what) {
-	if(what) {
+TestHelpers.restoreScroll = function( what ) {
+	if( what ) {
 		$(document).scrollTop(0); $(document).scrollLeft(0);
 	} else {
 		$("#main")[0].scrollTop = 0; $("#main")[0].scrollLeft = 0;
diff --git a/tests/unit/draggable/draggable_options.js b/tests/unit/draggable/draggable_options.js
index ea4611d69..4f7781515 100644
--- a/tests/unit/draggable/draggable_options.js
+++ b/tests/unit/draggable/draggable_options.js
@@ -210,7 +210,7 @@ test("{ cursor: 'auto' }, default", function() {
 
 	el = $("#draggable2").draggable({
 		cursor: expected,
-		start: function(event, ui) {
+		start: function() {
 			actual = getCursor();
 		}
 	});
@@ -234,7 +234,7 @@ test("{ cursor: 'move' }", function() {
 
 	el = $("#draggable2").draggable({
 		cursor: expected,
-		start: function(event, ui) {
+		start: function() {
 			actual = getCursor();
 		}
 	});
@@ -449,7 +449,7 @@ test("{ helper: 'original' }, relative, with scroll offset on parent", function(
 	setScroll();
 	testScroll('absolute');
 
-	restoreScroll();
+	TestHelpers.restoreScroll();
 
 });
 
@@ -466,7 +466,7 @@ test("{ helper: 'original' }, relative, with scroll offset on root", function()
 	setScroll('root');
 	testScroll('absolute');
 
-	restoreScroll('root');
+	TestHelpers.restoreScroll('root');
 
 });
 
@@ -486,8 +486,8 @@ test("{ helper: 'original' }, relative, with scroll offset on root and parent",
 	setScroll('root');
 	testScroll('absolute');
 
-	restoreScroll();
-	restoreScroll('root');
+	TestHelpers.restoreScroll();
+	TestHelpers.restoreScroll('root');
 
 });
 
@@ -504,7 +504,7 @@ test("{ helper: 'original' }, absolute, with scroll offset on parent", function(
 	setScroll();
 	testScroll('absolute');
 
-	restoreScroll();
+	TestHelpers.restoreScroll();
 
 });
 
@@ -521,7 +521,7 @@ test("{ helper: 'original' }, absolute, with scroll offset on root", function()
 	setScroll('root');
 	testScroll('absolute');
 
-	restoreScroll('root');
+	TestHelpers.restoreScroll('root');
 
 });
 
@@ -541,8 +541,8 @@ test("{ helper: 'original' }, absolute, with scroll offset on root and parent",
 	setScroll('root');
 	testScroll('absolute');
 
-	restoreScroll();
-	restoreScroll('root');
+	TestHelpers.restoreScroll();
+	TestHelpers.restoreScroll('root');
 
 });
 
@@ -559,7 +559,7 @@ test("{ helper: 'original' }, fixed, with scroll offset on parent", function() {
 	setScroll();
 	testScroll('absolute');
 
-	restoreScroll();
+	TestHelpers.restoreScroll();
 
 });
 
@@ -576,7 +576,7 @@ test("{ helper: 'original' }, fixed, with scroll offset on root", function() {
 	setScroll('root');
 	testScroll('absolute');
 
-	restoreScroll('root');
+	TestHelpers.restoreScroll('root');
 });
 
 test("{ helper: 'original' }, fixed, with scroll offset on root and parent", function() {
@@ -595,8 +595,8 @@ test("{ helper: 'original' }, fixed, with scroll offset on root and parent", fun
 	setScroll('root');
 	testScroll('absolute');
 
-	restoreScroll();
-	restoreScroll('root');
+	TestHelpers.restoreScroll();
+	TestHelpers.restoreScroll('root');
 
 });
 
@@ -639,7 +639,7 @@ test("{ helper: 'clone' }, absolute with scroll offset on parent", function() {
 	drag(el, 1, 1);
 	deepEqual({ top: helperOffset.top-1, left: helperOffset.left-1 }, origOffset, 'dragged[' + dragged.dx + ', ' + dragged.dy + '] ');
 
-	restoreScroll();
+	TestHelpers.restoreScroll();
 
 });
 
@@ -668,7 +668,7 @@ test("{ helper: 'clone' }, absolute with scroll offset on root", function() {
 	drag(el, 1, 1);
 	deepEqual({ top: helperOffset.top-1, left: helperOffset.left-1 }, origOffset, 'dragged[' + dragged.dx + ', ' + dragged.dy + '] ');
 
-	restoreScroll('root');
+	TestHelpers.restoreScroll('root');
 
 });
 
@@ -698,8 +698,8 @@ test("{ helper: 'clone' }, absolute with scroll offset on root and parent", func
 	drag(el, 1, 1);
 	deepEqual({ top: helperOffset.top-1, left: helperOffset.left-1 }, origOffset, 'dragged[' + dragged.dx + ', ' + dragged.dy + '] ');
 
-	restoreScroll('root');
-	restoreScroll();
+	TestHelpers.restoreScroll('root');
+	TestHelpers.restoreScroll();
 
 });
 
@@ -710,7 +710,7 @@ test("{ opacity: 0.5 }", function() {
 	var opacity = null;
 	el = $("#draggable2").draggable({
 		opacity: 0.5,
-		start: function(event, ui) {
+		start: function() {
 			opacity = $(this).css("opacity");
 		}
 	});
@@ -726,11 +726,11 @@ test("{ zIndex: 10 }", function() {
 	expect(1);
 
 	var actual,
-		expected = 10,
-		zIndex = null;
+		expected = 10;
+
 	el = $("#draggable2").draggable({
 		zIndex: expected,
-		start: function(event, ui) {
+		start: function() {
 			actual = $(this).css("zIndex");
 		}
 	});
diff --git a/tests/unit/droppable/droppable_core.js b/tests/unit/droppable/droppable_core.js
index 3f709d25d..1ec50eecc 100644
--- a/tests/unit/droppable/droppable_core.js
+++ b/tests/unit/droppable/droppable_core.js
@@ -2,15 +2,15 @@
  * droppable_core.js
  */
 
-var el, drg;
+var el;
 
-function shouldBeDroppable() {
+TestHelpers.shouldBeDroppable = function() {
 	ok(false, 'missing test - untested code is broken code');
-}
+};
 
-function shouldNotBeDroppable() {
+TestHelpers.shouldNotBeDroppable = function() {
 	ok(false, 'missing test - untested code is broken code');
-}
+};
 
 (function($) {
 
@@ -27,7 +27,7 @@ test("element types", function() {
 		el = $(document.createElement(typeName)).appendTo('body');
 		(typeName === 'table' && el.append("<tr><td>content</td></tr>"));
 		el.droppable();
-		shouldBeDroppable();
+		TestHelpers.shouldBeDroppable();
 		el.droppable("destroy");
 		el.remove();
 	});
diff --git a/tests/unit/droppable/droppable_events.js b/tests/unit/droppable/droppable_events.js
index f22a03540..2e01b0c9c 100644
--- a/tests/unit/droppable/droppable_events.js
+++ b/tests/unit/droppable/droppable_events.js
@@ -5,6 +5,10 @@
 
 module("droppable: events");
 
+// this is here to make JSHint pass "unused", and we don't want to
+// remove the parameter for when we finally implement
+$.noop();
+
 test("activate", function() {
 	ok(false, 'missing test - untested code is broken code');
 });
diff --git a/tests/unit/droppable/droppable_methods.js b/tests/unit/droppable/droppable_methods.js
index 8fd49d265..51581b425 100644
--- a/tests/unit/droppable/droppable_methods.js
+++ b/tests/unit/droppable/droppable_methods.js
@@ -48,16 +48,16 @@ test("destroy", function() {
 test("enable", function() {
 	expect(7);
 	el = $("#droppable1").droppable({ disabled: true });
-	shouldNotBeDroppable();
+	TestHelpers.shouldNotBeDroppable();
 	el.droppable("enable");
-	shouldBeDroppable();
+	TestHelpers.shouldBeDroppable();
 	equal(el.droppable("option", "disabled"), false, "disabled option getter");
 	el.droppable("destroy");
 	el.droppable({ disabled: true });
-	shouldNotBeDroppable();
+	TestHelpers.shouldNotBeDroppable();
 	el.droppable("option", "disabled", false);
 	equal(el.droppable("option", "disabled"), false, "disabled option setter");
-	shouldBeDroppable();
+	TestHelpers.shouldBeDroppable();
 
 	var expected = $('<div></div>').droppable(),
 		actual = expected.droppable('enable');
@@ -67,16 +67,16 @@ test("enable", function() {
 test("disable", function() {
 	expect(7);
 	el = $("#droppable1").droppable({ disabled: false });
-	shouldBeDroppable();
+	TestHelpers.shouldBeDroppable();
 	el.droppable("disable");
-	shouldNotBeDroppable();
+	TestHelpers.shouldNotBeDroppable();
 	equal(el.droppable("option", "disabled"), true, "disabled option getter");
 	el.droppable("destroy");
 	el.droppable({ disabled: false });
-	shouldBeDroppable();
+	TestHelpers.shouldBeDroppable();
 	el.droppable("option", "disabled", true);
 	equal(el.droppable("option", "disabled"), true, "disabled option setter");
-	shouldNotBeDroppable();
+	TestHelpers.shouldNotBeDroppable();
 
 	var expected = $('<div></div>').droppable(),
 		actual = expected.droppable('disable');
diff --git a/tests/unit/effects/effects_core.js b/tests/unit/effects/effects_core.js
index c4e5c24f9..26390b7d3 100644
--- a/tests/unit/effects/effects_core.js
+++ b/tests/unit/effects/effects_core.js
@@ -12,10 +12,7 @@ function notPresent( value, array, message ) {
 var minDuration = 15,
 
 	// duration is used for "long" animates where we plan on testing properties during animation
-	duration = 200,
-
-	// mid is used for testing in the "middle" of the "duration" animations
-	mid = duration / 2;
+	duration = 200;
 
 module( "effects.core" );
 
@@ -58,8 +55,7 @@ test( "createWrapper and removeWrapper retain focused elements (#7595)", functio
 module( "effects.core: animateClass" );
 
 asyncTest( "animateClass works with borderStyle", function() {
-	var test = $("div.animateClass"),
-		count = 0;
+	var test = $("div.animateClass");
 	expect(3);
 	test.toggleClass("testAddBorder", minDuration, function() {
 		test.toggleClass("testAddBorder", minDuration, function() {
@@ -73,8 +69,8 @@ asyncTest( "animateClass works with borderStyle", function() {
 
 asyncTest( "animateClass works with colors", function() {
 	var test = $("div.animateClass"),
-		count = 0,
 		oldStep = jQuery.fx.step.backgroundColor;
+
 	expect(2);
 
 	// we want to catch the first frame of animation
@@ -102,7 +98,7 @@ asyncTest( "animateClass works with colors", function() {
 
 asyncTest( "animateClass calls step option", 1, function() {
 	var test = jQuery( "div.animateClass" ),
-		step = function( fx ) {
+		step = function() {
 			ok( true, "Step Function Called" );
 			test.stop();
 			start();
@@ -216,7 +212,7 @@ $.each( $.effects.effect, function( effect ) {
 			equal( hidden.css("display"), "block", "Hidden is shown after .show(\"" +effect+ "\", time)" );
 		})).queue( queueTest() ).hide( effect, minDuration, queueTest(function() {
 			equal( hidden.css("display"), "none", "Back to hidden after .hide(\"" +effect+ "\", time)" );
-		})).queue( queueTest(function(next) {
+		})).queue( queueTest(function() {
 			deepEqual( hidden.queue(), ["inprogress"], "Only the inprogress sentinel remains");
 			start();
 		}));
diff --git a/tests/unit/menu/menu_events.js b/tests/unit/menu/menu_events.js
index d69fc46a3..a94968138 100644
--- a/tests/unit/menu/menu_events.js
+++ b/tests/unit/menu/menu_events.js
@@ -13,7 +13,7 @@ module( "menu: events", {
 test( "handle click on menu", function() {
 	expect( 1 );
 	var element = $( "#menu1" ).menu({
-		select: function( event, ui ) {
+		select: function() {
 			log();
 		}
 	});
@@ -29,7 +29,7 @@ test( "handle click on menu", function() {
 test( "handle click on custom item menu", function() {
 	expect( 1 );
 	var element = $( "#menu5" ).menu({
-		select: function( event, ui ) {
+		select: function() {
 			log();
 		},
 		menus: "div"
@@ -47,7 +47,7 @@ asyncTest( "handle blur", function() {
 	expect( 1 );
 	var blurHandled = false,
 		element = $( "#menu1" ).menu({
-			blur: function( event, ui ) {
+			blur: function( event ) {
 				// Ignore duplicate blur event fired by IE
 				if ( !blurHandled ) {
 					blurHandled = true;
@@ -69,7 +69,7 @@ asyncTest( "handle blur via click outside", function() {
 	expect( 1 );
 	var blurHandled = false,
 		element = $( "#menu1" ).menu({
-			blur: function( event, ui ) {
+			blur: function( event ) {
 				// Ignore duplicate blur event fired by IE
 				if ( !blurHandled ) {
 					blurHandled = true;
@@ -90,7 +90,7 @@ asyncTest( "handle blur via click outside", function() {
 test( "handle focus of menu with active item", function() {
 	expect( 1 );
 	var element = $( "#menu1" ).menu({
-		focus: function( event, ui ) {
+		focus: function( event ) {
 			log( $( event.target ).find( ".ui-state-focus" ).parent().index() );
 		}
 	});
@@ -168,7 +168,7 @@ test( "handle keyboard navigation on menu without scroll and without submenus",
 		select: function( event, ui ) {
 			log( $( ui.item[0] ).text() );
 		},
-		focus: function( event, ui ) {
+		focus: function( event ) {
 			log( $( event.target ).find( ".ui-state-focus" ).parent().index() );
 		}
 	});
@@ -230,13 +230,13 @@ asyncTest( "handle keyboard navigation on menu without scroll and with submenus"
 		select: function( event, ui ) {
 			log( $( ui.item[0] ).text() );
 		},
-		focus: function( event, ui ) {
+		focus: function( event ) {
 			log( $( event.target ).find( ".ui-state-focus" ).parent().index() );
 		}
 	});
 
 	log( "keydown", true );
-	element.one( "menufocus", function( event, ui ) {
+	element.one( "menufocus", function() {
 		element.simulate( "keydown", { keyCode: $.ui.keyCode.DOWN } );
 		element.simulate( "keydown", { keyCode: $.ui.keyCode.DOWN } );
 		equal( logOutput(), "keydown,1,2", "Keydown DOWN" );
@@ -350,7 +350,7 @@ test( "handle keyboard navigation on menu with scroll and without submenus", fun
 		select: function( event, ui ) {
 			log( $( ui.item[0] ).text() );
 		},
-		focus: function( event, ui ) {
+		focus: function( event ) {
 			log( $( event.target ).find( ".ui-state-focus" ).parent().index());
 		}
 	});
@@ -421,13 +421,13 @@ asyncTest( "handle keyboard navigation on menu with scroll and with submenus", f
 		select: function( event, ui ) {
 			log( $( ui.item[0] ).text() );
 		},
-		focus: function( event, ui ) {
+		focus: function( event ) {
 			log( $( event.target ).find( ".ui-state-focus" ).parent().index());
 		}
 	});
 
 	log( "keydown", true );
-	element.one( "menufocus", function( event, ui ) {
+	element.one( "menufocus", function() {
 		element.simulate( "keydown", { keyCode: $.ui.keyCode.DOWN } );
 		element.simulate( "keydown", { keyCode: $.ui.keyCode.DOWN } );
 		equal( logOutput(), "keydown,1,2", "Keydown DOWN" );
@@ -516,13 +516,13 @@ asyncTest( "handle keyboard navigation and mouse click on menu with disabled ite
 		select: function( event, ui ) {
 			log( $( ui.item[0] ).text() );
 		},
-		focus: function( event, ui ) {
+		focus: function( event ) {
 			log( $( event.target ).find( ".ui-state-focus" ).parent().index());
 		}
 	});
 
 	log( "keydown", true );
-	element.one( "menufocus", function( event, ui ) {
+	element.one( "menufocus", function() {
 		element.simulate( "keydown", { keyCode: $.ui.keyCode.DOWN } );
 		element.simulate( "keydown", { keyCode: $.ui.keyCode.ENTER } );
 		equal( logOutput(), "keydown,1", "Keydown focus but not select disabled item" );
@@ -564,13 +564,13 @@ asyncTest( "handle keyboard navigation and mouse click on menu with disabled ite
 test( "handle keyboard navigation with spelling of menu items", function() {
 	expect( 2 );
 	var element = $( "#menu2" ).menu({
-		focus: function( event, ui ) {
+		focus: function( event ) {
 			log( $( event.target ).find( ".ui-state-focus" ).parent().index() );
 		}
 	});
 
 	log( "keydown", true );
-	element.one( "menufocus", function( event, ui ) {
+	element.one( "menufocus", function() {
 		element.simulate( "keydown", { keyCode: 65 } );
 		element.simulate( "keydown", { keyCode: 68 } );
 		element.simulate( "keydown", { keyCode: 68 } );
diff --git a/tests/unit/menu/menu_methods.js b/tests/unit/menu/menu_methods.js
index f9241f27b..c49783c3e 100644
--- a/tests/unit/menu/menu_methods.js
+++ b/tests/unit/menu/menu_methods.js
@@ -29,7 +29,7 @@ test( "destroy", function() {
 test( "enable/disable", function() {
 	expect( 3 );
 	var element = $( "#menu1" ).menu({
-		select: function( event, ui ) {
+		select: function() {
 			log();
 		}
 	});
diff --git a/tests/unit/menu/menu_options.js b/tests/unit/menu/menu_options.js
index a8b029201..2c8749e3c 100644
--- a/tests/unit/menu/menu_options.js
+++ b/tests/unit/menu/menu_options.js
@@ -14,7 +14,7 @@ test( "{ disabled: true }", function() {
 	expect( 2 );
 	var element = $( "#menu1" ).menu({
 		disabled: true,
-		select: function(event, ui) {
+		select: function() {
 			log();
 		}
 	});
@@ -29,7 +29,7 @@ test( "{ disabled: false }", function() {
 	expect( 2 );
 	var element = $( "#menu1" ).menu({
 		disabled: false,
-		select: function( event, ui ) {
+		select: function() {
 			log();
 		}
 	});
diff --git a/tests/unit/resizable/resizable_core.js b/tests/unit/resizable/resizable_core.js
index aef2ae15c..8cc6cec82 100644
--- a/tests/unit/resizable/resizable_core.js
+++ b/tests/unit/resizable/resizable_core.js
@@ -2,9 +2,7 @@
  * resizable_core.js
  */
 
-var el;
-
-var drag = function(el, dx, dy, complete) {
+TestHelpers.resizableDrag = function(el, dx, dy, complete) {
 
 	// speed = sync -> Drag syncrhonously.
 	// speed = fast|slow -> Drag asyncrhonously - animated.
@@ -46,10 +44,10 @@ test("n", function() {
 
 	var handle = '.ui-resizable-n', target = $('#resizable1').resizable({ handles: 'all' });
 
-	drag(handle, 0, -50);
+	TestHelpers.resizableDrag(handle, 0, -50);
 	equal( target.height(), 150, "compare height" );
 
-	drag(handle, 0, 50);
+	TestHelpers.resizableDrag(handle, 0, 50);
 	equal( target.height(), 100, "compare height" );
 });
 
@@ -58,10 +56,10 @@ test("s", function() {
 
 	var handle = '.ui-resizable-s', target = $('#resizable1').resizable({ handles: 'all' });
 
-	drag(handle, 0, 50);
+	TestHelpers.resizableDrag(handle, 0, 50);
 	equal( target.height(), 150, "compare height" );
 
-	drag(handle, 0, -50);
+	TestHelpers.resizableDrag(handle, 0, -50);
 	equal( target.height(), 100, "compare height" );
 });
 
@@ -70,10 +68,10 @@ test("e", function() {
 
 	var handle = '.ui-resizable-e', target = $('#resizable1').resizable({ handles: 'all' });
 
-	drag(handle, 50);
+	TestHelpers.resizableDrag(handle, 50);
 	equal( target.width(), 150, "compare width");
 
-	drag(handle, -50);
+	TestHelpers.resizableDrag(handle, -50);
 	equal( target.width(), 100, "compare width" );
 });
 
@@ -82,10 +80,10 @@ test("w", function() {
 
 	var handle = '.ui-resizable-w', target = $('#resizable1').resizable({ handles: 'all' });
 
-	drag(handle, -50);
+	TestHelpers.resizableDrag(handle, -50);
 	equal( target.width(), 150, "compare width" );
 
-	drag(handle, 50);
+	TestHelpers.resizableDrag(handle, 50);
 	equal( target.width(), 100, "compare width" );
 });
 
@@ -94,11 +92,11 @@ test("ne", function() {
 
 	var handle = '.ui-resizable-ne', target = $('#resizable1').css({ overflow: 'hidden' }).resizable({ handles: 'all' });
 
-	drag(handle, -50, -50);
+	TestHelpers.resizableDrag(handle, -50, -50);
 	equal( target.width(), 50, "compare width" );
 	equal( target.height(), 150, "compare height" );
 
-	drag(handle, 50, 50);
+	TestHelpers.resizableDrag(handle, 50, 50);
 	equal( target.width(), 100, "compare width" );
 	equal( target.height(), 100, "compare height" );
 });
@@ -108,11 +106,11 @@ test("se", function() {
 
 	var handle = '.ui-resizable-se', target = $('#resizable1').resizable({ handles: 'all' });
 
-	drag(handle, 50, 50);
+	TestHelpers.resizableDrag(handle, 50, 50);
 	equal( target.width(), 150, "compare width" );
 	equal( target.height(), 150, "compare height" );
 
-	drag(handle, -50, -50);
+	TestHelpers.resizableDrag(handle, -50, -50);
 	equal( target.width(), 100, "compare width" );
 	equal( target.height(), 100, "compare height" );
 });
@@ -122,11 +120,11 @@ test("sw", function() {
 
 	var handle = '.ui-resizable-sw', target = $('#resizable1').resizable({ handles: 'all' });
 
-	drag(handle, -50, -50);
+	TestHelpers.resizableDrag(handle, -50, -50);
 	equal( target.width(), 150, "compare width" );
 	equal( target.height(), 50, "compare height" );
 
-	drag(handle, 50, 50);
+	TestHelpers.resizableDrag(handle, 50, 50);
 	equal( target.width(), 100, "compare width" );
 	equal( target.height(), 100, "compare height" );
 });
@@ -136,11 +134,11 @@ test("nw", function() {
 
 	var handle = '.ui-resizable-nw', target = $('#resizable1').resizable({ handles: 'all' });
 
-	drag(handle, -50, -50);
+	TestHelpers.resizableDrag(handle, -50, -50);
 	equal( target.width(), 150, "compare width" );
 	equal( target.height(), 150, "compare height" );
 
-	drag(handle, 50, 50);
+	TestHelpers.resizableDrag(handle, 50, 50);
 	equal( target.width(), 100, "compare width" );
 	equal( target.height(), 100, "compare height" );
 });
diff --git a/tests/unit/resizable/resizable_events.js b/tests/unit/resizable/resizable_events.js
index 52d55731c..d7793ff2f 100644
--- a/tests/unit/resizable/resizable_events.js
+++ b/tests/unit/resizable/resizable_events.js
@@ -5,4 +5,8 @@
 
 module("resizable: events");
 
+// this is here to make JSHint pass "unused", and we don't want to
+// remove the parameter for when we finally implement
+$.noop();
+
 })(jQuery);
diff --git a/tests/unit/resizable/resizable_methods.js b/tests/unit/resizable/resizable_methods.js
index 87859acf7..b12f3035a 100644
--- a/tests/unit/resizable/resizable_methods.js
+++ b/tests/unit/resizable/resizable_methods.js
@@ -5,5 +5,8 @@
 
 module("resizable: methods");
 
+// this is here to make JSHint pass "unused", and we don't want to
+// remove the parameter for when we finally implement
+$.noop();
 
 })(jQuery);
diff --git a/tests/unit/resizable/resizable_options.js b/tests/unit/resizable/resizable_options.js
index e10a55a31..c17f329fd 100644
--- a/tests/unit/resizable/resizable_options.js
+++ b/tests/unit/resizable/resizable_options.js
@@ -10,11 +10,11 @@ test("aspectRatio: 'preserve' (e)", function() {
 
 	var handle = '.ui-resizable-e', target = $('#resizable1').resizable({ aspectRatio: 'preserve', handles: 'all', minWidth: 70, minHeight: 50, maxWidth: 150, maxHeight: 130 });
 
-	drag(handle, 80);
+	TestHelpers.resizableDrag(handle, 80);
 	equal( target.width(), 130, "compare maxWidth");
 	equal( target.height(), 130, "compare maxHeight");
 
-	drag(handle, -130);
+	TestHelpers.resizableDrag(handle, -130);
 	equal( target.width(), 70, "compare minWidth");
 	equal( target.height(), 70, "compare minHeight");
 });
@@ -24,11 +24,11 @@ test("aspectRatio: 'preserve' (w)", function() {
 
 	var handle = '.ui-resizable-w', target = $('#resizable1').resizable({ aspectRatio: 'preserve', handles: 'all', minWidth: 70, minHeight: 50, maxWidth: 150, maxHeight: 130 });
 
-	drag(handle, -80);
+	TestHelpers.resizableDrag(handle, -80);
 	equal( target.width(), 130, "compare maxWidth");
 	equal( target.height(), 130, "compare maxHeight");
 
-	drag(handle, 130);
+	TestHelpers.resizableDrag(handle, 130);
 	equal( target.width(), 70, "compare minWidth");
 	equal( target.height(), 70, "compare minHeight");
 });
@@ -38,11 +38,11 @@ test("aspectRatio: 'preserve' (n)", function() {
 
 	var handle = '.ui-resizable-n', target = $('#resizable1').resizable({ aspectRatio: 'preserve', handles: 'all', minWidth: 70, minHeight: 50, maxWidth: 150, maxHeight: 130 });
 
-	drag(handle, 0, -80);
+	TestHelpers.resizableDrag(handle, 0, -80);
 	equal( target.width(), 130, "compare maxWidth");
 	equal( target.height(), 130, "compare maxHeight");
 
-	drag(handle, 0, 80);
+	TestHelpers.resizableDrag(handle, 0, 80);
 	equal( target.width(), 70, "compare minWidth");
 	equal( target.height(), 70, "compare minHeight");
 });
@@ -52,11 +52,11 @@ test("aspectRatio: 'preserve' (s)", function() {
 
 	var handle = '.ui-resizable-s', target = $('#resizable1').resizable({ aspectRatio: 'preserve', handles: 'all', minWidth: 70, minHeight: 50, maxWidth: 150, maxHeight: 130 });
 
-	drag(handle, 0, 80);
+	TestHelpers.resizableDrag(handle, 0, 80);
 	equal( target.width(), 130, "compare maxWidth");
 	equal( target.height(), 130, "compare maxHeight");
 
-	drag(handle, 0, -80);
+	TestHelpers.resizableDrag(handle, 0, -80);
 	equal( target.width(), 70, "compare minWidth");
 	equal( target.height(), 70, "compare minHeight");
 });
@@ -66,11 +66,11 @@ test("aspectRatio: 'preserve' (se)", function() {
 
 	var handle = '.ui-resizable-se', target = $('#resizable1').resizable({ aspectRatio: 'preserve', handles: 'all', minWidth: 70, minHeight: 50, maxWidth: 150, maxHeight: 130 });
 
-	drag(handle, 80, 80);
+	TestHelpers.resizableDrag(handle, 80, 80);
 	equal( target.width(), 130, "compare maxWidth");
 	equal( target.height(), 130, "compare maxHeight");
 
-	drag(handle, -80, -80);
+	TestHelpers.resizableDrag(handle, -80, -80);
 	equal( target.width(), 70, "compare minWidth");
 	equal( target.height(), 70, "compare minHeight");
 });
@@ -80,11 +80,11 @@ test("aspectRatio: 'preserve' (sw)", function() {
 
 	var handle = '.ui-resizable-sw', target = $('#resizable1').resizable({ aspectRatio: 'preserve', handles: 'all', minWidth: 70, minHeight: 50, maxWidth: 150, maxHeight: 130 });
 
-	drag(handle, -80, 80);
+	TestHelpers.resizableDrag(handle, -80, 80);
 	equal( target.width(), 130, "compare maxWidth");
 	equal( target.height(), 130, "compare maxHeight");
 
-	drag(handle, 80, -80);
+	TestHelpers.resizableDrag(handle, 80, -80);
 	equal( target.width(), 70, "compare minWidth");
 	equal( target.height(), 70, "compare minHeight");
 });
@@ -94,11 +94,11 @@ test("aspectRatio: 'preserve' (ne)", function() {
 
 	var handle = '.ui-resizable-ne', target = $('#resizable1').resizable({ aspectRatio: 'preserve', handles: 'all', minWidth: 70, minHeight: 50, maxWidth: 150, maxHeight: 130 });
 
-	drag(handle, 80, -80);
+	TestHelpers.resizableDrag(handle, 80, -80);
 	equal( target.width(), 130, "compare maxWidth");
 	equal( target.height(), 130, "compare maxHeight");
 
-	drag(handle, -80, 80);
+	TestHelpers.resizableDrag(handle, -80, 80);
 	equal( target.width(), 70, "compare minWidth");
 	equal( target.height(), 70, "compare minHeight");
 });
@@ -108,11 +108,11 @@ test("grid", function() {
 
 	var handle = '.ui-resizable-se', target = $('#resizable1').resizable({ handles: 'all', grid: [0, 20] });
 
-	drag(handle, 3, 9);
+	TestHelpers.resizableDrag(handle, 3, 9);
 	equal( target.width(), 103, "compare width");
 	equal( target.height(), 100, "compare height");
 
-	drag(handle, 15, 11);
+	TestHelpers.resizableDrag(handle, 15, 11);
 	equal( target.width(), 118, "compare width");
 	equal( target.height(), 120, "compare height");
 });
@@ -122,11 +122,11 @@ test("grid (wrapped)", function() {
 
 	var handle = '.ui-resizable-se', target = $('#resizable2').resizable({ handles: 'all', grid: [0, 20] });
 
-	drag(handle, 3, 9);
+	TestHelpers.resizableDrag(handle, 3, 9);
 	equal( target.width(), 103, "compare width");
 	equal( target.height(), 100, "compare height");
 
-	drag(handle, 15, 11);
+	TestHelpers.resizableDrag(handle, 15, 11);
 	equal( target.width(), 118, "compare width");
 	equal( target.height(), 120, "compare height");
 });
@@ -136,11 +136,11 @@ test("ui-resizable-se { handles: 'all', minWidth: 60, minHeight: 60, maxWidth: 1
 
 	var handle = '.ui-resizable-se', target = $('#resizable1').resizable({ handles: 'all', minWidth: 60, minHeight: 60, maxWidth: 100, maxHeight: 100 });
 
-	drag(handle, -50, -50);
+	TestHelpers.resizableDrag(handle, -50, -50);
 	equal( target.width(), 60, "compare minWidth" );
 	equal( target.height(), 60, "compare minHeight" );
 
-	drag(handle, 70, 70);
+	TestHelpers.resizableDrag(handle, 70, 70);
 	equal( target.width(), 100, "compare maxWidth" );
 	equal( target.height(), 100, "compare maxHeight" );
 });
@@ -150,11 +150,11 @@ test("ui-resizable-sw { handles: 'all', minWidth: 60, minHeight: 60, maxWidth: 1
 
 	var handle = '.ui-resizable-sw', target = $('#resizable1').resizable({ handles: 'all', minWidth: 60, minHeight: 60, maxWidth: 100, maxHeight: 100 });
 
-	drag(handle, 50, -50);
+	TestHelpers.resizableDrag(handle, 50, -50);
 	equal( target.width(), 60, "compare minWidth" );
 	equal( target.height(), 60, "compare minHeight" );
 
-	drag(handle, -70, 70);
+	TestHelpers.resizableDrag(handle, -70, 70);
 	equal( target.width(), 100, "compare maxWidth" );
 	equal( target.height(), 100, "compare maxHeight" );
 });
@@ -164,11 +164,11 @@ test("ui-resizable-ne { handles: 'all', minWidth: 60, minHeight: 60, maxWidth: 1
 
 	var handle = '.ui-resizable-ne', target = $('#resizable1').resizable({ handles: 'all', minWidth: 60, minHeight: 60, maxWidth: 100, maxHeight: 100 });
 
-	drag(handle, -50, 50);
+	TestHelpers.resizableDrag(handle, -50, 50);
 	equal( target.width(), 60, "compare minWidth" );
 	equal( target.height(), 60, "compare minHeight" );
 
-	drag(handle, 70, -70);
+	TestHelpers.resizableDrag(handle, 70, -70);
 	equal( target.width(), 100, "compare maxWidth" );
 	equal( target.height(), 100, "compare maxHeight" );
 });
@@ -178,11 +178,11 @@ test("ui-resizable-nw { handles: 'all', minWidth: 60, minHeight: 60, maxWidth: 1
 
 	var handle = '.ui-resizable-nw', target = $('#resizable1').resizable({ handles: 'all', minWidth: 60, minHeight: 60, maxWidth: 100, maxHeight: 100 });
 
-	drag(handle, 70, 70);
+	TestHelpers.resizableDrag(handle, 70, 70);
 	equal( target.width(), 60, "compare minWidth" );
 	equal( target.height(), 60, "compare minHeight" );
 
-	drag(handle, -70, -70);
+	TestHelpers.resizableDrag(handle, -70, -70);
 	equal( target.width(), 100, "compare maxWidth" );
 	equal( target.height(), 100, "compare maxHeight" );
 });
diff --git a/tests/unit/selectable/selectable_core.js b/tests/unit/selectable/selectable_core.js
index 18ea3a302..d2e885fc7 100644
--- a/tests/unit/selectable/selectable_core.js
+++ b/tests/unit/selectable/selectable_core.js
@@ -4,7 +4,7 @@
 
 var el;
 
-var drag = function(dx, dy) {
+TestHelpers.selectableDrag = function drag(dx, dy) {
 	var off = el.offset(), pos = { clientX: off.left, clientY: off.top };
 	el.simulate("mousedown", pos);
 	$(document).simulate("mousemove", pos);
diff --git a/tests/unit/selectable/selectable_events.js b/tests/unit/selectable/selectable_events.js
index 2623818a7..bfd431bd8 100644
--- a/tests/unit/selectable/selectable_events.js
+++ b/tests/unit/selectable/selectable_events.js
@@ -9,7 +9,7 @@ test("start", function() {
 	expect(2);
 	el = $("#selectable1");
 	el.selectable({
-		start: function(ev, ui) {
+		start: function() {
 			ok(true, "drag fired start callback");
 			equal(this, el[0], "context of callback");
 		}
@@ -21,7 +21,7 @@ test("stop", function() {
 	expect(2);
 	el = $("#selectable1");
 	el.selectable({
-		start: function(ev, ui) {
+		start: function() {
 			ok(true, "drag fired stop callback");
 			equal(this, el[0], "context of callback");
 		}
diff --git a/tests/unit/selectable/selectable_methods.js b/tests/unit/selectable/selectable_methods.js
index dbc88f269..ee7242d9b 100644
--- a/tests/unit/selectable/selectable_methods.js
+++ b/tests/unit/selectable/selectable_methods.js
@@ -21,7 +21,7 @@ test("init", function() {
 	ok(true, 'arbitrary method called after init');
 
 	el = $("<div></div>").selectable();
-	var foo = el.selectable("option", "foo");
+	el.selectable("option", "foo");
 	el.remove();
 	ok(true, 'arbitrary option getter after init');
 
diff --git a/tests/unit/selectable/selectable_options.js b/tests/unit/selectable/selectable_options.js
index be9fdf5fe..ad57000a9 100644
--- a/tests/unit/selectable/selectable_options.js
+++ b/tests/unit/selectable/selectable_options.js
@@ -13,7 +13,7 @@ test("autoRefresh", function() {
 	actual = 0;
 	el = $("#selectable1").selectable({ autoRefresh: false,	selected: selected });
 	sel.hide();
-	drag(1000, 1000);
+	TestHelpers.selectableDrag(1000, 1000);
 	equal(actual, sel.length);
 	el.selectable("destroy");
 
@@ -21,10 +21,10 @@ test("autoRefresh", function() {
 	sel.show();
 	el = $("#selectable1").selectable({ autoRefresh: true,	selected: selected });
 	sel.hide();
-	drag(1000, 1000);
+	TestHelpers.selectableDrag(1000, 1000);
 	equal(actual, 0);
 	sel.show();
-	drag(1000, 1000);
+	TestHelpers.selectableDrag(1000, 1000);
 	equal(actual, sel.length);
 	el.selectable("destroy");
 	sel.show();
@@ -37,7 +37,7 @@ test("filter", function() {
 
 	actual = 0;
 	el = $("#selectable1").selectable({ filter: '.special', selected: selected });
-	drag(1000, 1000);
+	TestHelpers.selectableDrag(1000, 1000);
 	ok(sel.length !== 1, "this test assumes more than 1 selectee");
 	equal(actual, 1);
 	el.selectable("destroy");
diff --git a/tests/unit/slider/slider_events.js b/tests/unit/slider/slider_events.js
index 4d0896442..2fb9b37b6 100644
--- a/tests/unit/slider/slider_events.js
+++ b/tests/unit/slider/slider_events.js
@@ -14,16 +14,16 @@ test( "mouse based interaction", function() {
 
 	var el = $( "#slider1" )
 		.slider({
-			start: function(event, ui) {
+			start: function( event ) {
 				equal( event.originalEvent.type, "mousedown", "start triggered by mousedown" );
 			},
-			slide: function(event, ui) {
+			slide: function( event) {
 				equal( event.originalEvent.type, "mousemove", "slider triggered by mousemove" );
 			},
-			stop: function(event, ui) {
+			stop: function( event ) {
 				equal( event.originalEvent.type, "mouseup", "stop triggered by mouseup" );
 			},
-			change: function(event, ui) {
+			change: function( event ) {
 				equal( event.originalEvent.type, "mouseup", "change triggered by mouseup" );
 			}
 		});
@@ -38,16 +38,16 @@ test( "keyboard based interaction", function() {
 	// Test keyup at end of handle slide (keyboard)
 	var el = $( "#slider1" )
 		.slider({
-			start: function(event, ui) {
+			start: function( event ) {
 				equal( event.originalEvent.type, "keydown", "start triggered by keydown" );
 			},
-			slide: function(event, ui) {
+			slide: function() {
 				ok( false, "Slider never triggered by keys" );
 			},
-			stop: function(event, ui) {
+			stop: function( event ) {
 				equal( event.originalEvent.type, "keyup", "stop triggered by keyup" );
 			},
-			change: function(event, ui) {
+			change: function( event ) {
 				equal( event.originalEvent.type, "keyup", "change triggered by keyup" );
 			}
 		});
@@ -64,7 +64,7 @@ test( "programmatic event triggers", function() {
 	// Test value method
 	var el = $( "<div></div>" )
 		.slider({
-			change: function(event, ui) {
+			change: function() {
 				ok( true, "change triggered by value method" );
 			}
 		})
@@ -75,7 +75,7 @@ test( "programmatic event triggers", function() {
 	el = $( "<div></div>" )
 		.slider({
 			values: [ 10, 20 ],
-			change: function(event, ui) {
+			change: function() {
 				ok( true, "change triggered by values method" );
 			}
 		})
@@ -85,7 +85,7 @@ test( "programmatic event triggers", function() {
 	// Test value option
 	el = $( "<div></div>" )
 		.slider({
-			change: function(event, ui) {
+			change: function() {
 				ok( true, "change triggered by value option" );
 			}
 		})
@@ -96,7 +96,7 @@ test( "programmatic event triggers", function() {
 	el = $( "<div></div>" )
 		.slider({
 			values: [ 10, 20 ],
-			change: function(event, ui) {
+			change: function() {
 				ok( true, "change triggered by values option" );
 			}
 		})
diff --git a/tests/unit/slider/slider_methods.js b/tests/unit/slider/slider_methods.js
index 1a6b493c9..11d679845 100644
--- a/tests/unit/slider/slider_methods.js
+++ b/tests/unit/slider/slider_methods.js
@@ -17,8 +17,8 @@ test("init", function() {
 	$('<div></div>').slider().remove();
 	ok(true, '.slider() called on disconnected DOMElement');
 
-	var el = $('<div></div>').slider(),
-		foo = el.slider("option", "foo");
+	var el = $('<div></div>').slider();
+	el.slider("option", "foo");
 	el.remove();
 	ok(true, 'arbitrary option getter after init');
 
diff --git a/tests/unit/sortable/sortable_core.js b/tests/unit/sortable/sortable_core.js
index ff1859874..540e06f0f 100644
--- a/tests/unit/sortable/sortable_core.js
+++ b/tests/unit/sortable/sortable_core.js
@@ -6,4 +6,8 @@
 
 module("sortable: core");
 
+// this is here to make JSHint pass "unused", and we don't want to
+// remove the parameter for when we finally implement
+$.noop();
+
 })(jQuery);
diff --git a/tests/unit/sortable/sortable_options.js b/tests/unit/sortable/sortable_options.js
index a043e68fe..d5d7b3de1 100644
--- a/tests/unit/sortable/sortable_options.js
+++ b/tests/unit/sortable/sortable_options.js
@@ -5,6 +5,10 @@
 
 module("sortable: options");
 
+// this is here to make JSHint pass "unused", and we don't want to
+// remove the parameter for when we finally implement
+$.noop();
+
 test("{ appendTo: 'parent' }, default", function() {
 	ok(false, "missing test - untested code is broken code.");
 });
diff --git a/tests/unit/sortable/sortable_tickets.js b/tests/unit/sortable/sortable_tickets.js
index 22ad61baf..14bb705ea 100644
--- a/tests/unit/sortable/sortable_tickets.js
+++ b/tests/unit/sortable/sortable_tickets.js
@@ -44,13 +44,13 @@ test('#4752: link event firing on sortable with connect list', function () {
 
     $('#main ul').sortable({
         connectWith: '#main ul',
-        change: function (e, ui) {
+        change: function () {
             fired.change = true;
         },
-        receive: function (e, ui) {
+        receive: function () {
             fired.receive = true;
         },
-        remove: function (e, ui) {
+        remove: function () {
             fired.remove = true;
         }
     });
diff --git a/tests/unit/spinner/spinner_options.js b/tests/unit/spinner/spinner_options.js
index 1f6646a33..284e03a3e 100644
--- a/tests/unit/spinner/spinner_options.js
+++ b/tests/unit/spinner/spinner_options.js
@@ -1,7 +1,5 @@
 (function( $ ) {
 
-var simulateKeyDownUp = TestHelpers.spinner.simulateKeyDownUp;
-
 module( "spinner: options" );
 
 // culture is tested after numberFormat, since it depends on numberFormat
@@ -28,7 +26,7 @@ test( "icons: custom ", function() {
 test( "incremental, false", function() {
 	expect( 100 );
 
-	var i, diff,
+	var i,
 		prev = 0,
 		element = $( "#spin" ).val( prev ).spinner({
 			incremental: false,
@@ -53,7 +51,7 @@ test( "incremental, true", function() {
 		});
 	}
 
-	var i, diff,
+	var i,
 		prev = 0,
 		expected = [].concat( fill( 18, 1 ), fill( 37, 2 ), fill( 14, 3 ),
 			fill( 9, 4 ), fill( 6, 5 ), fill( 5, 6 ), fill ( 5, 7 ),
diff --git a/tests/unit/tabs/tabs_core.js b/tests/unit/tabs/tabs_core.js
index 5dbe1d6b1..6307c4488 100644
--- a/tests/unit/tabs/tabs_core.js
+++ b/tests/unit/tabs/tabs_core.js
@@ -132,7 +132,6 @@ test( "accessibility", function() {
 asyncTest( "accessibility - ajax", function() {
 	expect( 4 );
 	var element = $( "#tabs2" ).tabs(),
-		tab = element.find( ".ui-tabs-nav li" ).eq( 3 ),
 		panel = $( "#custom-id" );
 
 	equal( panel.attr( "aria-live" ), "polite", "remote panel has aria-live" );
@@ -588,7 +587,7 @@ asyncTest( "keyboard support - CTRL+UP, ALT+PAGE_DOWN, ALT+PAGE_UP", function()
 test( "#3627 - Ajax tab with url containing a fragment identifier fails to load", function() {
 	expect( 1 );
 
-	var element = $( "#tabs2" ).tabs({
+	$( "#tabs2" ).tabs({
 		active: 2,
 		beforeLoad: function( event, ui ) {
 			event.preventDefault();
@@ -603,7 +602,7 @@ test( "#4033 - IE expands hash to full url and misinterprets tab as ajax", funct
 	var element = $( "<div><ul><li><a href='#tab'>Tab</a></li></ul><div id='tab'></div></div>" );
 	element.appendTo( "#main" );
 	element.tabs({
-		beforeLoad: function( event, ui ) {
+		beforeLoad: function() {
 			event.preventDefault();
 			ok( false, "should not be an ajax tab" );
 		}
diff --git a/tests/unit/tabs/tabs_deprecated.js b/tests/unit/tabs/tabs_deprecated.js
index 4a938c078..297a4546e 100644
--- a/tests/unit/tabs/tabs_deprecated.js
+++ b/tests/unit/tabs/tabs_deprecated.js
@@ -53,20 +53,20 @@ asyncTest( "cache", function() {
 	var element = $( "#tabs2" ).tabs({
 		cache: true
 	});
-	element.one( "tabsshow", function( event, ui ) {
+	element.one( "tabsshow", function() {
 		state( element, 0, 0, 1, 0, 0 );
 	});
-	element.one( "tabsload", function( event, ui ) {
+	element.one( "tabsload", function() {
 		ok( true, "tabsload" );
 
 		setTimeout(function() {
 			element.tabs( "option", "active", 0 );
 			state( element, 1, 0, 0, 0, 0 );
 
-			element.one( "tabsshow", function( event, ui ) {
+			element.one( "tabsshow", function() {
 				state( element, 0, 0, 1, 0, 0 );
 			});
-			element.one( "tabsload", function( event, ui ) {
+			element.one( "tabsload", function() {
 				ok( false, "should be cached" );
 			});
 			element.tabs( "option", "active", 2 );
@@ -159,10 +159,10 @@ asyncTest( "spinner", function() {
 
 	var element = $( "#tabs2" ).tabs();
 
-	element.one( "tabsbeforeload", function( event, ui ) {
+	element.one( "tabsbeforeload", function() {
 		equal( element.find( ".ui-tabs-nav li:eq(2) em" ).length, 1, "beforeload" );
 	});
-	element.one( "tabsload", function( event, ui ) {
+	element.one( "tabsload", function() {
 		// wait until after the load finishes before checking for the spinner to be removed
 		setTimeout(function() {
 			equal( element.find( ".ui-tabs-nav li:eq(2) em" ).length, 0, "load" );
@@ -351,7 +351,7 @@ test( "show", function() {
 	state( element, 0, 1, 0 );
 
 	// collapsing
-	element.one( "tabsshow", function( event, ui ) {
+	element.one( "tabsshow", function() {
 		ok( false, "collapsing" );
 	});
 	element.tabs( "option", "active", false );
@@ -391,7 +391,7 @@ test( "select", function() {
 	state( element, 0, 1, 0 );
 
 	// collapsing
-	element.one( "tabsselect", function( event, ui ) {
+	element.one( "tabsselect", function() {
 		ok( false, "collapsing" );
 	});
 	element.tabs( "option", "active", false );
diff --git a/tests/unit/testsuite.js b/tests/unit/testsuite.js
index 74a561c0d..c0ab490e1 100644
--- a/tests/unit/testsuite.js
+++ b/tests/unit/testsuite.js
@@ -116,7 +116,7 @@ function testWidgetDefaults( widget, defaults ) {
 	// ensure that all defaults were tested
 	test( "tested defaults", function() {
 		var count = 0;
-		$.each( pluginDefaults, function( key, val ) {
+		$.each( pluginDefaults, function( key ) {
 			expect( ++count );
 			ok( key in defaults, key );
 		});
@@ -227,7 +227,7 @@ window.domEqual = function( selector, modifier, message ) {
 		delete result.data[ $.expando ];
 		children = elem.children();
 		if ( children.length ) {
-			result.children = elem.children().map(function( ind ) {
+			result.children = elem.children().map(function() {
 				return extract( $( this ) );
 			}).get();
 		} else {
diff --git a/tests/unit/tooltip/tooltip_options.js b/tests/unit/tooltip/tooltip_options.js
index e5046f464..3be651855 100644
--- a/tests/unit/tooltip/tooltip_options.js
+++ b/tests/unit/tooltip/tooltip_options.js
@@ -67,7 +67,7 @@ test( "content: change while open", function() {
 
 test( "content: string", function() {
 	expect( 1 );
-	var element = $( "#tooltipped1" ).tooltip({
+	$( "#tooltipped1" ).tooltip({
 		content: "just a string",
 		open: function( event, ui ) {
 			equal( ui.tooltip.text(), "just a string" );
diff --git a/tests/unit/widget/widget_core.js b/tests/unit/widget/widget_core.js
index 5efd91268..848579a1d 100644
--- a/tests/unit/widget/widget_core.js
+++ b/tests/unit/widget/widget_core.js
@@ -313,7 +313,7 @@ test( "re-init", function() {
 		_init: function() {
 			actions.push( "init" );
 		},
-		_setOption: function( key, value ) {
+		_setOption: function( key ) {
 			actions.push( "option" + key );
 		}
 	});
@@ -959,11 +959,11 @@ test( "._trigger() - cancelled event", function() {
 	});
 
 	$( "#widget" ).testWidget({
-		foo: function( event, ui ) {
+		foo: function() {
 			ok( true, "callback invoked even if event is cancelled" );
 		}
 	})
-	.bind( "testwidgetfoo", function( event, ui ) {
+	.bind( "testwidgetfoo", function() {
 		ok( true, "event was triggered" );
 		return false;
 	});
@@ -978,7 +978,7 @@ test( "._trigger() - cancelled callback", function() {
 	});
 
 	$( "#widget" ).testWidget({
-		foo: function( event, ui ) {
+		foo: function() {
 			return false;
 		}
 	});
diff --git a/ui/.jshintrc b/ui/.jshintrc
index 26b808774..edf09721b 100644
--- a/ui/.jshintrc
+++ b/ui/.jshintrc
@@ -10,6 +10,7 @@
 	"onevar": true,
 	"trailing": true,
 	"undef": true,
+	"unused": true,
 	"predef": [
 		"Globalize"
 	]
diff --git a/ui/jquery.ui.accordion.js b/ui/jquery.ui.accordion.js
index a23d5e66d..108647419 100644
--- a/ui/jquery.ui.accordion.js
+++ b/ui/jquery.ui.accordion.js
@@ -603,7 +603,7 @@ if ( $.uiBackCompat !== false ) {
 				_create.call( this );
 			},
 
-			_setOption: function( key, value ) {
+			_setOption: function( key ) {
 				if ( key === "autoHeight" || key === "clearStyle" || key === "fillSpace" ) {
 					this.options.heightStyle = this._mergeHeightStyle();
 				}
diff --git a/ui/jquery.ui.autocomplete.js b/ui/jquery.ui.autocomplete.js
index aec12bf8f..7bacca006 100644
--- a/ui/jquery.ui.autocomplete.js
+++ b/ui/jquery.ui.autocomplete.js
@@ -359,7 +359,7 @@ $.widget( "ui.autocomplete", {
 					url: url,
 					data: request,
 					dataType: "json",
-					success: function( data, status ) {
+					success: function( data ) {
 						response( data );
 					},
 					error: function() {
@@ -541,7 +541,7 @@ $.widget( "ui.autocomplete", {
 		return this.menu.element;
 	},
 
-	_value: function( value ) {
+	_value: function() {
 		return this.valueMethod.apply( this.element, arguments );
 	},
 
diff --git a/ui/jquery.ui.dialog.js b/ui/jquery.ui.dialog.js
index e234464ad..f2e3f945f 100644
--- a/ui/jquery.ui.dialog.js
+++ b/ui/jquery.ui.dialog.js
@@ -88,6 +88,11 @@ $.widget("ui.dialog", {
 			options = this.options,
 
 			title = options.title || "&#160;",
+			uiDialog,
+			uiDialogTitlebar,
+			uiDialogTitlebarClose,
+			uiDialogTitle,
+			uiDialogButtonPane;
 
 			uiDialog = ( this.uiDialog = $( "<div>" ) )
 				.addClass( uiDialogClasses + options.dialogClass )
@@ -108,13 +113,13 @@ $.widget("ui.dialog", {
 				.mousedown(function( event ) {
 					that.moveToTop( false, event );
 				})
-				.appendTo( "body" ),
+				.appendTo( "body" );
 
-			uiDialogContent = this.element
+			this.element
 				.show()
 				.removeAttr( "title" )
 				.addClass( "ui-dialog-content ui-widget-content" )
-				.appendTo( uiDialog ),
+				.appendTo( uiDialog );
 
 			uiDialogTitlebar = ( this.uiDialogTitlebar = $( "<div>" ) )
 				.addClass( "ui-dialog-titlebar  ui-widget-header  " +
@@ -123,7 +128,7 @@ $.widget("ui.dialog", {
 					// Dialog isn't getting focus when dragging (#8063)
 					uiDialog.focus();
 				})
-				.prependTo( uiDialog ),
+				.prependTo( uiDialog );
 
 			uiDialogTitlebarClose = $( "<a href='#'></a>" )
 				.addClass( "ui-dialog-titlebar-close  ui-corner-all" )
@@ -132,23 +137,23 @@ $.widget("ui.dialog", {
 					event.preventDefault();
 					that.close( event );
 				})
-				.appendTo( uiDialogTitlebar ),
+				.appendTo( uiDialogTitlebar );
 
-			uiDialogTitlebarCloseText = ( this.uiDialogTitlebarCloseText = $( "<span>" ) )
+			( this.uiDialogTitlebarCloseText = $( "<span>" ) )
 				.addClass( "ui-icon ui-icon-closethick" )
 				.text( options.closeText )
-				.appendTo( uiDialogTitlebarClose ),
+				.appendTo( uiDialogTitlebarClose );
 
 			uiDialogTitle = $( "<span>" )
 				.uniqueId()
 				.addClass( "ui-dialog-title" )
 				.html( title )
-				.prependTo( uiDialogTitlebar ),
+				.prependTo( uiDialogTitlebar );
 
 			uiDialogButtonPane = ( this.uiDialogButtonPane = $( "<div>" ) )
-				.addClass( "ui-dialog-buttonpane ui-widget-content ui-helper-clearfix" ),
+				.addClass( "ui-dialog-buttonpane ui-widget-content ui-helper-clearfix" );
 
-			uiButtonSet = ( this.uiButtonSet = $( "<div>" ) )
+			( this.uiButtonSet = $( "<div>" ) )
 				.addClass( "ui-dialog-buttonset" )
 				.appendTo( uiDialogButtonPane );
 
@@ -350,8 +355,7 @@ $.widget("ui.dialog", {
 	},
 
 	_createButtons: function( buttons ) {
-		var uiDialogButtonPane, uiButtonSet,
-			that = this,
+		var that = this,
 			hasButtons = false;
 
 		// if we already have a button pane, remove it
diff --git a/ui/jquery.ui.effect.js b/ui/jquery.ui.effect.js
index 8d875746e..37ca48795 100644
--- a/ui/jquery.ui.effect.js
+++ b/ui/jquery.ui.effect.js
@@ -245,8 +245,7 @@ color.fn = jQuery.extend( color.prototype, {
 
 		var inst = this,
 			type = jQuery.type( red ),
-			rgba = this._rgba = [],
-			source;
+			rgba = this._rgba = [];
 
 		// more than 1 argument specified - assume ( red, green, blue, alpha )
 		if ( green !== undefined ) {
@@ -427,7 +426,7 @@ color.fn = jQuery.extend( color.prototype, {
 			rgba.push( ~~( alpha * 255 ) );
 		}
 
-		return "#" + jQuery.map( rgba, function( v, i ) {
+		return "#" + jQuery.map( rgba, function( v ) {
 
 			// default to 0 when nulls exist
 			v = ( v || 0 ).toString( 16 );
@@ -501,8 +500,7 @@ spaces.hsla.from = function ( hsla ) {
 		l = hsla[ 2 ],
 		a = hsla[ 3 ],
 		q = l <= 0.5 ? l * ( 1 + s ) : l + s - l * s,
-		p = 2 * l - q,
-		r, g, b;
+		p = 2 * l - q;
 
 	return [
 		Math.round( hue2rgb( p, q, h + ( 1 / 3 ) ) * 255 ),
@@ -710,7 +708,6 @@ function getElementStyles() {
 			this.currentStyle,
 		newStyle = {},
 		key,
-		camelCase,
 		len;
 
 	// webkit enumerates style porperties
@@ -1114,7 +1111,7 @@ function standardSpeed( speed ) {
 }
 
 $.fn.extend({
-	effect: function( effect, options, speed, callback ) {
+	effect: function( /* effect, options, speed, callback */ ) {
 		var args = _normalizeArguments.apply( this, arguments ),
 			mode = args.mode,
 			queue = args.queue,
diff --git a/ui/jquery.ui.slider.js b/ui/jquery.ui.slider.js
index eb0f7fc15..18f7113d4 100644
--- a/ui/jquery.ui.slider.js
+++ b/ui/jquery.ui.slider.js
@@ -278,7 +278,7 @@ $.widget( "ui.slider", $.ui.mouse, {
 		return true;
 	},
 
-	_mouseStart: function( event ) {
+	_mouseStart: function() {
 		return true;
 	},
 
@@ -591,7 +591,7 @@ $.widget( "ui.slider", $.ui.mouse, {
 			_set = {};
 
 		if ( this.options.values && this.options.values.length ) {
-			this.handles.each(function( i, j ) {
+			this.handles.each(function( i ) {
 				valPercent = ( that.values(i) - that._valueMin() ) / ( that._valueMax() - that._valueMin() ) * 100;
 				_set[ that.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%";
 				$( this ).stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate );
diff --git a/ui/jquery.ui.tabs.js b/ui/jquery.ui.tabs.js
index 05456374d..0d920c3a1 100644
--- a/ui/jquery.ui.tabs.js
+++ b/ui/jquery.ui.tabs.js
@@ -45,8 +45,7 @@ $.widget( "ui.tabs", {
 	},
 
 	_create: function() {
-		var panel,
-			that = this,
+		var that = this,
 			options = this.options,
 			active = options.active,
 			locationHash = location.hash.substring( 1 );
@@ -295,8 +294,7 @@ $.widget( "ui.tabs", {
 	},
 
 	refresh: function() {
-		var next,
-			options = this.options,
+		var options = this.options,
 			lis = this.tablist.children( ":has(a[href])" );
 
 		// get disabled tabs from class attribute from HTML
@@ -922,7 +920,7 @@ if ( $.uiBackCompat !== false ) {
 			this._super();
 		},
 
-		url: function( index, url ){
+		url: function( index ){
 			this.anchors.eq( index ).removeData( "cache.tabs" );
 			this._superApply( arguments );
 		}
@@ -1158,7 +1156,7 @@ if ( $.uiBackCompat !== false ) {
 			}
 		},
 
-		_eventHandler: function( event ) {
+		_eventHandler: function() {
 			this._superApply( arguments );
 			this.options.selected = this.options.active;
 			if ( this.options.selected === false ) {
@@ -1254,7 +1252,7 @@ if ( $.uiBackCompat !== false ) {
 				this._cookie( this.options.active, this.options.cookie );
 			}
 		},
-		_eventHandler: function( event ) {
+		_eventHandler: function() {
 			this._superApply( arguments );
 			if ( this.options.cookie ) {
 				this._cookie( this.options.active, this.options.cookie );
diff --git a/ui/jquery.ui.tooltip.js b/ui/jquery.ui.tooltip.js
index 4a17f1f20..43788a082 100644
--- a/ui/jquery.ui.tooltip.js
+++ b/ui/jquery.ui.tooltip.js
@@ -284,7 +284,7 @@ $.widget( "ui.tooltip", {
 					this.close( fakeEvent, true );
 				}
 			},
-			remove: function( event ) {
+			remove: function() {
 				this._removeTooltip( tooltip );
 			}
 		};
@@ -297,7 +297,7 @@ $.widget( "ui.tooltip", {
 		this._on( target, events );
 	},
 
-	close: function( event, force ) {
+	close: function( event ) {
 		var that = this,
 			target = $( event ? event.currentTarget : this.element ),
 			tooltip = this._find( target );
diff --git a/ui/jquery.ui.widget.js b/ui/jquery.ui.widget.js
index 96cc6071c..59fd81b9e 100644
--- a/ui/jquery.ui.widget.js
+++ b/ui/jquery.ui.widget.js
@@ -200,7 +200,7 @@ $.widget.bridge = function( name, object ) {
 	};
 };
 
-$.Widget = function( options, element ) {};
+$.Widget = function( /* options, element */ ) {};
 $.Widget._childConstructors = [];
 
 $.Widget.prototype = {