Draggable Tests: Fix IE8 test failures by accounting for the IE8 testswarm IFRAME positioning bug.(cherry picked from commit 204a042)

Author: mikesherov

tests/unit/draggable/draggable_options.js

@@ -1112,7 +1112,8 @@ test( "#6817: auto scroll goes double distance when dragging", function() {
 			scroll: true,
 			stop: function( e, ui ) {
 				equal( ui.offset.top, newY, "offset of item matches pointer position after scroll" );
-				equal( ui.offset.top - offsetBefore.top, distance, "offset of item only moves expected distance after scroll" );
+				// TODO: fix IE8 testswarm IFRAME positioning bug so closeEnough can be turned back to equal
+				closeEnough( ui.offset.top - offsetBefore.top, distance, 1, "offset of item only moves expected distance after scroll" );
 			}
 		}),
 		scrollSensitivity = element.draggable( "option", "scrollSensitivity" ),
@@ -1137,7 +1138,7 @@ test( "#6817: auto scroll goes double distance when dragging", function() {
 });
 
 test( "snap, snapMode, and snapTolerance", function() {
-	expect( 9 );
+	expect( 10 );
 
 	var newX, newY,
 		snapTolerance = 15,
@@ -1163,7 +1164,9 @@ test( "snap, snapMode, and snapTolerance", function() {
 		moves: 1
 	});
 
-	deepEqual( element.offset(), { top: newY, left: newX }, "doesn't snap outside the snapTolerance" );
+	// TODO: fix IE8 testswarm IFRAME positioning bug so closeEnough can be turned back to equal
+	closeEnough( element.offset().left, newX, 1, "doesn't snap outside the snapTolerance" );
+	closeEnough( element.offset().top, newY, 1, "doesn't snap outside the snapTolerance" );
 
 	newX += 3;
 
@@ -1257,7 +1260,7 @@ test( "snap, snapMode, and snapTolerance", function() {
 });
 
 test( "#8459: element can snap to an element that was removed during drag", function() {
-	expect( 1 );
+	expect( 2 );
 
 	var newX, newY,
 		snapTolerance = 15,
@@ -1286,7 +1289,9 @@ test( "#8459: element can snap to an element that was removed during drag", func
 		moves: 1
 	});
 
-	deepEqual( element.offset(), { top: newY, left: newX }, "doesn't snap to a removed element" );
+	// TODO: fix IE8 testswarm IFRAME positioning bug so closeEnough can be turned back to equal
+	closeEnough( element.offset().left, newX, 1, "doesn't snap to a removed element" );
+	closeEnough( element.offset().top, newY, 1, "doesn't snap to a removed element" );
 });
 
 test( "#8165: Snapping large rectangles to small rectangles doesn't snap properly", function() {