This should repair the unit

sizzle @ e4d50dd0

-Subproject commit 4fc4b92a1d1037b70162faf19860c2aac2ae5622
+Subproject commit e4d50dd01f7573e205606746b32924281db379f0

test/unit/effects.js

@@ -1405,9 +1405,6 @@ asyncTest( "jQuery.Animation( object, props, opts )", 4, function() {
 
 asyncTest( "Animate Option: step: function( percent, tween )", 1, function() {
 	var counter = {};
-	// if the animation loop is already running when we start this test, it WILL fail
-	// going to try delaying 100ms to make sure any potential leftover animations are done
-	setTimeout( function() {
 	jQuery( "#foo" ).animate({
 		prop1: 1,
 		prop2: 2,
@@ -1416,7 +1413,9 @@ asyncTest( "Animate Option: step: function( percent, tween )", 1, function() {
 		duration: 1,
 		step: function( value, tween ) {
 			var calls = counter[ tween.prop ] = counter[ tween.prop ] || [];
-				calls.push( value );
+			// in case this is called multiple times for either, lets store it in
+			// 0 or 1 in the array
+			calls[ value === 0 ? 0 : 1 ] = value;
 		}
 	}).queue( function( next ) {
 		deepEqual( counter, {
@@ -1427,7 +1426,6 @@ asyncTest( "Animate Option: step: function( percent, tween )", 1, function() {
 		next();
 		start();
 	});
-	}, 100 );
 });
 
 asyncTest( "Animate callbacks have correct context", 2, function() {