+
+test("hide hidden elements (bug #7141)", function() {
+ expect(3);
+ QUnit.reset();
+
+ var div = jQuery("<div style='display:none'></div>").appendTo("#main");
+ equals( div.css("display"), "none", "Element is hidden by default" );
+ div.hide();
+ ok( !jQuery._data(div, "olddisplay"), "olddisplay is undefined after hiding an already-hidden element" );
+ div.show();
+ equals( div.css("display"), "block", "Show a double-hidden element" );
+
+ div.remove();
+});
+
+test("hide hidden elements, with animation (bug #7141)", function() {
+ expect(3);
+ QUnit.reset();
+ stop();
+
+ var div = jQuery("<div style='display:none'></div>").appendTo("#main");
+ equals( div.css("display"), "none", "Element is hidden by default" );
+ div.hide(1, function () {
+ ok( !jQuery._data(div, "olddisplay"), "olddisplay is undefined after hiding an already-hidden element" );
+ div.show(1, function () {
+ equals( div.css("display"), "block", "Show a double-hidden element" );
+ start();
+ });
+ });
+});
+
+test("animate unit-less properties (#4966)", 2, function() {
+ stop();
+ var div = jQuery( "<div style='z-index: 0'></div>" ).appendTo( "body" );
+ equal( div.css( "z-index" ), "0", "z-index is 0" );
+ div.animate({ zIndex: 2 }, function() {
+ equal( div.css( "z-index" ), "2", "z-index is 2" );
+ start();
+ });
+});