3 test("sanity check", function() {
5 ok( jQuery("#dl:visible, #main:visible, #foo:visible").length === 3, "QUnit state is correct for testing effects" );
8 test("show()", function() {
11 var hiddendiv = jQuery("div.hidden");
13 hiddendiv.hide().show();
15 equals( hiddendiv.css("display"), "block", "Make sure a pre-hidden div is visible." );
17 var div = jQuery("<div>").hide().appendTo("body").show();
19 equal( div.css("display"), "block", "Make sure pre-hidden divs show" );
23 hiddendiv = jQuery("div.hidden");
25 equal(jQuery.css( hiddendiv[0], "display"), "none", "hiddendiv is display: none");
27 hiddendiv.css("display", "block");
28 equal(jQuery.css( hiddendiv[0], "display"), "block", "hiddendiv is display: block");
31 equal(jQuery.css( hiddendiv[0], "display"), "block", "hiddendiv is display: block");
33 hiddendiv.css("display","");
35 var pass = true, div = jQuery("#main div");
36 div.show().each(function(){
37 if ( this.style.display == "none" ) pass = false;
43 "undefined speed": undefined,
44 "empty string speed": "",
48 jQuery.each(speeds, function(name, speed) {
50 div.hide().show(speed).each(function() {
51 if ( this.style.display == "none" ) pass = false;
53 ok( pass, "Show with " + name);
57 jQuery.each(speeds, function(name, speed) {
59 div.hide().show(speed, function() {
62 ok( pass, "Show with " + name + " does not call animate callback" );
65 // #show-tests * is set display: none in CSS
66 jQuery("#main").append('<div id="show-tests"><div><p><a href="#"></a></p><code></code><pre></pre><span></span></div><table><thead><tr><th></th></tr></thead><tbody><tr><td></td></tr></tbody></table><ul><li></li></ul></div><table id="test-table"></table>');
68 var old = jQuery("#test-table").show().css("display") !== "table";
69 jQuery("#test-table").remove();
78 "table" : old ? "block" : "table",
79 "thead" : old ? "block" : "table-header-group",
80 "tbody" : old ? "block" : "table-row-group",
81 "tr" : old ? "block" : "table-row",
82 "th" : old ? "block" : "table-cell",
83 "td" : old ? "block" : "table-cell",
85 "li" : old ? "block" : "list-item"
88 jQuery.each(test, function(selector, expected) {
89 var elem = jQuery(selector, "#show-tests").show();
90 equals( elem.css("display"), expected, "Show using correct display type for " + selector );
94 test("show(Number) - other displays", function() {
99 // #show-tests * is set display: none in CSS
100 jQuery("#main").append('<div id="show-tests"><div><p><a href="#"></a></p><code></code><pre></pre><span></span></div><table><thead><tr><th></th></tr></thead><tbody><tr><td></td></tr></tbody></table><ul><li></li></ul></div><table id="test-table"></table>');
102 var old = jQuery("#test-table").show().css("display") !== "table",
104 jQuery("#test-table").remove();
113 "table" : old ? "block" : "table",
114 "thead" : old ? "block" : "table-header-group",
115 "tbody" : old ? "block" : "table-row-group",
116 "tr" : old ? "block" : "table-row",
117 "th" : old ? "block" : "table-cell",
118 "td" : old ? "block" : "table-cell",
120 "li" : old ? "block" : "list-item"
123 jQuery.each(test, function(selector, expected) {
124 var elem = jQuery(selector, "#show-tests").show(1, function() {
125 equals( elem.css("display"), expected, "Show using correct display type for " + selector );
126 if ( ++num === 15 ) {
133 test("animate(Hash, Object, Function)", function() {
136 var hash = {opacity: 'show'};
137 var hashCopy = jQuery.extend({}, hash);
138 jQuery('#foo').animate(hash, 0, function() {
139 equals( hash.opacity, hashCopy.opacity, 'Check if animate changed the hash parameter' );
144 test("animate negative height", function() {
147 jQuery("#foo").animate({ height: -100 }, 100, function() {
148 equals( this.offsetHeight, 0, "Verify height." );
153 test("animate block as inline width/height", function() {
156 var span = jQuery("<span>").css("display", "inline-block").appendTo("body"),
157 expected = span.css("display");
161 if ( jQuery.support.inlineBlockNeedsLayout || expected === "inline-block" ) {
164 jQuery("#foo").css({ display: "inline", width: '', height: '' }).animate({ width: 42, height: 42 }, 100, function() {
165 equals( jQuery(this).css("display"), jQuery.support.inlineBlockNeedsLayout ? "inline" : "inline-block", "inline-block was set on non-floated inline element when animating width/height" );
166 equals( this.offsetWidth, 42, "width was animated" );
167 equals( this.offsetHeight, 42, "height was animated" );
171 // Browser doesn't support inline-block
173 ok( true, "Browser doesn't support inline-block" );
174 ok( true, "Browser doesn't support inline-block" );
175 ok( true, "Browser doesn't support inline-block" );
179 test("animate native inline width/height", function() {
182 var span = jQuery("<span>").css("display", "inline-block").appendTo("body"),
183 expected = span.css("display");
187 if ( jQuery.support.inlineBlockNeedsLayout || expected === "inline-block" ) {
189 jQuery("#foo").css({ display: "", width: '', height: '' })
190 .append('<span>text</span>')
192 .animate({ width: 42, height: 42 }, 100, function() {
193 equals( jQuery(this).css("display"), "inline-block", "inline-block was set on non-floated inline element when animating width/height" );
194 equals( this.offsetWidth, 42, "width was animated" );
195 equals( this.offsetHeight, 42, "height was animated" );
199 // Browser doesn't support inline-block
201 ok( true, "Browser doesn't support inline-block" );
202 ok( true, "Browser doesn't support inline-block" );
203 ok( true, "Browser doesn't support inline-block" );
207 test("animate block width/height", function() {
210 jQuery("#foo").css({ display: "block", width: 20, height: 20 }).animate({ width: 42, height: 42 }, 100, function() {
211 equals( jQuery(this).css("display"), "block", "inline-block was not set on block element when animating width/height" );
212 equals( this.offsetWidth, 42, "width was animated" );
213 equals( this.offsetHeight, 42, "height was animated" );
218 test("animate table width/height", function() {
222 var displayMode = jQuery("#table").css("display") !== "table" ? "block" : "table";
224 jQuery("#table").animate({ width: 42, height: 42 }, 100, function() {
225 equals( jQuery(this).css("display"), displayMode, "display mode is correct" );
230 test("animate table-row width/height", function() {
233 var tr = jQuery("#table")
234 .attr({ "cellspacing": 0, "cellpadding": 0, "border": 0 })
235 .html("<tr style='height:42px;'><td style='padding:0;'><div style='width:20px;height:20px;'></div></td></tr>")
238 // IE<8 uses “block” instead of the correct display type
239 var displayMode = tr.css("display") !== "table-row" ? "block" : "table-row";
241 tr.animate({ width: 10, height: 10 }, 100, function() {
242 equals( jQuery(this).css("display"), displayMode, "display mode is correct" );
243 equals( this.offsetWidth, 20, "width animated to shrink wrap point" );
244 equals( this.offsetHeight, 20, "height animated to shrink wrap point" );
249 test("animate table-cell width/height", function() {
252 var td = jQuery("#table")
253 .attr({ "cellspacing": 0, "cellpadding": 0, "border": 0 })
254 .html("<tr><td style='width:42px;height:42px;padding:0;'><div style='width:20px;height:20px;'></div></td></tr>")
257 // IE<8 uses “block” instead of the correct display type
258 var displayMode = td.css("display") !== "table-cell" ? "block" : "table-cell";
260 td.animate({ width: 10, height: 10 }, 100, function() {
261 equals( jQuery(this).css("display"), displayMode, "display mode is correct" );
262 equals( this.offsetWidth, 20, "width animated to shrink wrap point" );
263 equals( this.offsetHeight, 20, "height animated to shrink wrap point" );
268 test("animate resets overflow-x and overflow-y when finished", function() {
272 .css({ display: "block", width: 20, height: 20, overflowX: "visible", overflowY: "auto" })
273 .animate({ width: 42, height: 42 }, 100, function() {
274 equals( this.style.overflowX, "visible", "overflow-x is visible" );
275 equals( this.style.overflowY, "auto", "overflow-y is auto" );
280 /* // This test ends up being flaky depending upon the CPU load
281 test("animate option (queue === false)", function () {
287 var $foo = jQuery("#foo");
288 $foo.animate({width:'100px'}, 3000, function () {
289 // should finish after unqueued animation so second
291 same( order, [ 1, 2 ], "Animations finished in the correct order" );
294 $foo.animate({fontSize:'2em'}, {queue:false, duration:10, complete:function () {
295 // short duration and out of queue so should finish first
301 test("animate with no properties", function() {
304 var divs = jQuery("div"), count = 0;
306 divs.animate({}, function(){
310 equals( divs.length, count, "Make sure that callback is called for each element in the set." );
314 var foo = jQuery("#foo");
317 foo.animate({top: 10}, 100, function(){
318 ok( true, "Animation was properly dequeued." );
323 test("animate duration 0", function() {
328 var $elems = jQuery([{ a:0 },{ a:0 }]), counter = 0;
330 equals( jQuery.timers.length, 0, "Make sure no animation was running from another test" );
332 $elems.eq(0).animate( {a:1}, 0, function(){
333 ok( true, "Animate a simple property." );
337 // Failed until [6115]
338 equals( jQuery.timers.length, 0, "Make sure synchronic animations are not left on jQuery.timers" );
340 equals( counter, 1, "One synchronic animations" );
342 $elems.animate( { a:2 }, 0, function(){
343 ok( true, "Animate a second simple property." );
347 equals( counter, 3, "Multiple synchronic animations" );
349 $elems.eq(0).animate( {a:3}, 0, function(){
350 ok( true, "Animate a third simple property." );
353 $elems.eq(1).animate( {a:3}, 200, function(){
355 // Failed until [6115]
356 equals( counter, 5, "One synchronic and one asynchronic" );
360 var $elem = jQuery("<div />");
361 $elem.show(0, function(){
362 ok(true, "Show callback with no duration");
364 $elem.hide(0, function(){
365 ok(true, "Hide callback with no duration");
369 test("animate hyphenated properties", function(){
373 jQuery("#nothiddendiv")
374 .css("font-size", 10)
375 .animate({"font-size": 20}, 200, function(){
376 equals( this.style.fontSize, "20px", "The font-size property was animated." );
381 test("animate non-element", function(){
385 var obj = { test: 0 };
387 jQuery(obj).animate({test: 200}, 200, function(){
388 equals( obj.test, 200, "The custom property should be modified." );
393 test("stop()", function() {
397 var $foo = jQuery("#nothiddendiv");
399 $foo.hide().width(200).width();
401 $foo.animate({ width:'show' }, 1000);
402 setTimeout(function(){
403 var nw = $foo.width();
404 notEqual( nw, w, "An animation occurred " + nw + "px " + w + "px");
408 notEqual( nw, w, "Stop didn't reset the animation " + nw + "px " + w + "px");
409 setTimeout(function(){
410 equals( nw, $foo.width(), "The animation didn't continue" );
416 test("stop() - several in queue", function() {
420 var $foo = jQuery("#nothiddendivchild");
422 $foo.hide().width(200).width();
424 $foo.animate({ width:'show' }, 1000);
425 $foo.animate({ width:'hide' }, 1000);
426 $foo.animate({ width:'show' }, 1000);
427 setTimeout(function(){
428 equals( $foo.queue().length, 3, "All 3 still in the queue" );
429 var nw = $foo.width();
430 notEqual( nw, w, "An animation occurred " + nw + "px " + w + "px");
434 notEqual( nw, w, "Stop didn't reset the animation " + nw + "px " + w + "px");
441 test("stop(clearQueue)", function() {
445 var $foo = jQuery("#nothiddendiv");
447 $foo.hide().width(200).width();
449 $foo.animate({ width:'show' }, 1000);
450 $foo.animate({ width:'hide' }, 1000);
451 $foo.animate({ width:'show' }, 1000);
452 setTimeout(function(){
453 var nw = $foo.width();
454 ok( nw != w, "An animation occurred " + nw + "px " + w + "px");
458 ok( nw != w, "Stop didn't reset the animation " + nw + "px " + w + "px");
460 equals( $foo.queue().length, 0, "The animation queue was cleared" );
461 setTimeout(function(){
462 equals( nw, $foo.width(), "The animation didn't continue" );
468 test("stop(clearQueue, gotoEnd)", function() {
472 var $foo = jQuery("#nothiddendivchild");
474 $foo.hide().width(200).width();
476 $foo.animate({ width:'show' }, 1000);
477 $foo.animate({ width:'hide' }, 1000);
478 $foo.animate({ width:'show' }, 1000);
479 $foo.animate({ width:'hide' }, 1000);
480 setTimeout(function(){
481 var nw = $foo.width();
482 ok( nw != w, "An animation occurred " + nw + "px " + w + "px");
483 $foo.stop(false, true);
486 // Disabled, being flaky
487 //equals( nw, 1, "Stop() reset the animation" );
489 setTimeout(function(){
490 // Disabled, being flaky
491 //equals( $foo.queue().length, 2, "The next animation continued" );
498 test("toggle()", function() {
500 var x = jQuery("#nothiddendiv");
501 ok( x.is(":visible"), "is visible" );
503 ok( x.is(":hidden"), "is hidden" );
505 ok( x.is(":visible"), "is visible again" );
508 ok( x.is(":visible"), "is visible" );
510 ok( x.is(":hidden"), "is hidden" );
512 ok( x.is(":visible"), "is visible again" );
515 jQuery.checkOverflowDisplay = function(){
516 var o = jQuery.css( this, "overflow" );
518 equals(o, "visible", "Overflow should be visible: " + o);
519 equals(jQuery.css( this, "display" ), "inline", "Display shouldn't be tampered with.");
524 test("JS Overflow and Display", function() {
527 jQuery.makeTest( "JS Overflow and Display" )
528 .addClass("widewidth")
529 .css({ overflow: "visible", display: "inline" })
530 .addClass("widewidth")
531 .text("Some sample text.")
532 .before("text before")
534 .animate({ opacity: 0.5 }, "slow", jQuery.checkOverflowDisplay);
537 test("CSS Overflow and Display", function() {
540 jQuery.makeTest( "CSS Overflow and Display" )
541 .addClass("overflow inline")
542 .addClass("widewidth")
543 .text("Some sample text.")
544 .before("text before")
546 .animate({ opacity: 0.5 }, "slow", jQuery.checkOverflowDisplay);
550 "CSS Auto": function(elem,prop){
551 jQuery(elem).addClass("auto" + prop)
552 .text("This is a long string of text.");
555 "JS Auto": function(elem,prop){
556 jQuery(elem).css(prop,"")
557 .text("This is a long string of text.");
560 "CSS 100": function(elem,prop){
561 jQuery(elem).addClass("large" + prop);
564 "JS 100": function(elem,prop){
565 jQuery(elem).css(prop,prop == "opacity" ? 1 : "100px");
566 return prop == "opacity" ? 1 : 100;
568 "CSS 50": function(elem,prop){
569 jQuery(elem).addClass("med" + prop);
572 "JS 50": function(elem,prop){
573 jQuery(elem).css(prop,prop == "opacity" ? 0.50 : "50px");
574 return prop == "opacity" ? 0.5 : 50;
576 "CSS 0": function(elem,prop){
577 jQuery(elem).addClass("no" + prop);
580 "JS 0": function(elem,prop){
581 jQuery(elem).css(prop,prop == "opacity" ? 0 : "0px");
586 "show": function(elem,prop){
587 jQuery(elem).hide().addClass("wide"+prop);
590 "hide": function(elem,prop){
591 jQuery(elem).addClass("wide"+prop);
594 "100": function(elem,prop){
595 jQuery(elem).addClass("wide"+prop);
596 return prop == "opacity" ? 1 : 100;
598 "50": function(elem,prop){
599 return prop == "opacity" ? 0.50 : 50;
601 "0": function(elem,prop){
602 jQuery(elem).addClass("noback");
606 test(fn + " to " + tn, function() {
607 var elem = jQuery.makeTest( fn + " to " + tn );
609 var t_w = t( elem, "width" );
610 var f_w = f( elem, "width" );
611 var t_h = t( elem, "height" );
612 var f_h = f( elem, "height" );
613 var t_o = t( elem, "opacity" );
614 var f_o = f( elem, "opacity" );
618 if ( t_h == "show" ) num++;
619 if ( t_w == "show" ) num++;
620 if ( t_w == "hide"||t_w == "show" ) num++;
621 if ( t_h == "hide"||t_h == "show" ) num++;
622 if ( t_o == "hide"||t_o == "show" ) num++;
623 if ( t_w == "hide" ) num++;
624 if ( t_o.constructor == Number ) num += 2;
625 if ( t_w.constructor == Number ) num += 2;
626 if ( t_h.constructor == Number ) num +=2;
631 var anim = { width: t_w, height: t_h, opacity: t_o };
633 elem.animate(anim, 50, function(){
635 equals( this.style.display, "block", "Showing, display should block: " + this.style.display);
637 if ( t_w == "hide"||t_w == "show" )
638 ok(f_w === "" ? this.style.width === f_w : this.style.width.indexOf(f_w) === 0, "Width must be reset to " + f_w + ": " + this.style.width);
640 if ( t_h == "hide"||t_h == "show" )
641 ok(f_h === "" ? this.style.height === f_h : this.style.height.indexOf(f_h) === 0, "Height must be reset to " + f_h + ": " + this.style.height);
643 var cur_o = jQuery.style(this, "opacity");
645 if ( t_o == "hide" || t_o == "show" )
646 equals(cur_o, f_o, "Opacity must be reset to " + f_o + ": " + cur_o);
649 equals(this.style.display, "none", "Hiding, display should be none: " + this.style.display);
651 if ( t_o.constructor == Number ) {
652 equals(cur_o, t_o, "Final opacity should be " + t_o + ": " + cur_o);
654 ok(jQuery.css(this, "opacity") != "" || cur_o == t_o, "Opacity should be explicitly set to " + t_o + ", is instead: " + cur_o);
657 if ( t_w.constructor == Number ) {
658 equals(this.style.width, t_w + "px", "Final width should be " + t_w + ": " + this.style.width);
660 var cur_w = jQuery.css(this,"width");
662 ok(this.style.width != "" || cur_w == t_w, "Width should be explicitly set to " + t_w + ", is instead: " + cur_w);
665 if ( t_h.constructor == Number ) {
666 equals(this.style.height, t_h + "px", "Final height should be " + t_h + ": " + this.style.height);
668 var cur_h = jQuery.css(this,"height");
670 ok(this.style.height != "" || cur_h == t_h, "Height should be explicitly set to " + t_h + ", is instead: " + cur_w);
673 if ( t_h == "show" ) {
674 var old_h = jQuery.css(this, "height");
675 jQuery(this).append("<br/>Some more text<br/>and some more...");
677 if ( /Auto/.test( fn ) ) {
678 notEqual(jQuery.css(this, "height"), old_h, "Make sure height is auto.");
680 equals(jQuery.css(this, "height"), old_h, "Make sure height is not auto.");
690 jQuery.fn.saveState = function(hiddenOverflow){
691 var check = ['opacity','height','width','display','overflow'];
692 expect(check.length);
695 return this.each(function(){
698 jQuery.each(check, function(i,c){
699 self.save[c] = c === "overflow" && hiddenOverflow ? "hidden" : self.style[ c ] || jQuery.css(self,c);
704 jQuery.checkState = function(){
706 jQuery.each(this.save, function(c,v){
707 var cur = self.style[ c ] || jQuery.css(self, c);
708 equals( cur, v, "Make sure that " + c + " is reset (Old: " + v + " Cur: " + cur + ")");
714 test("Chain fadeOut fadeIn", function() {
715 jQuery('#fadein div').saveState().fadeOut('fast').fadeIn('fast',jQuery.checkState);
717 test("Chain fadeIn fadeOut", function() {
718 jQuery('#fadeout div').saveState().fadeIn('fast').fadeOut('fast',jQuery.checkState);
721 test("Chain hide show", function() {
722 jQuery('#show div').saveState(jQuery.support.shrinkWrapBlocks).hide('fast').show('fast',jQuery.checkState);
724 test("Chain show hide", function() {
725 jQuery('#hide div').saveState(jQuery.support.shrinkWrapBlocks).show('fast').hide('fast',jQuery.checkState);
727 test("Chain show hide with easing and callback", function() {
728 jQuery('#hide div').saveState().show('fast').hide('fast','linear',jQuery.checkState);
731 test("Chain toggle in", function() {
732 jQuery('#togglein div').saveState(jQuery.support.shrinkWrapBlocks).toggle('fast').toggle('fast',jQuery.checkState);
734 test("Chain toggle out", function() {
735 jQuery('#toggleout div').saveState(jQuery.support.shrinkWrapBlocks).toggle('fast').toggle('fast',jQuery.checkState);
737 test("Chain toggle out with easing and callback", function() {
738 jQuery('#toggleout div').saveState(jQuery.support.shrinkWrapBlocks).toggle('fast').toggle('fast','linear',jQuery.checkState);
740 test("Chain slideDown slideUp", function() {
741 jQuery('#slidedown div').saveState(jQuery.support.shrinkWrapBlocks).slideDown('fast').slideUp('fast',jQuery.checkState);
743 test("Chain slideUp slideDown", function() {
744 jQuery('#slideup div').saveState(jQuery.support.shrinkWrapBlocks).slideUp('fast').slideDown('fast',jQuery.checkState);
746 test("Chain slideUp slideDown with easing and callback", function() {
747 jQuery('#slideup div').saveState(jQuery.support.shrinkWrapBlocks).slideUp('fast').slideDown('fast','linear',jQuery.checkState);
750 test("Chain slideToggle in", function() {
751 jQuery('#slidetogglein div').saveState(jQuery.support.shrinkWrapBlocks).slideToggle('fast').slideToggle('fast',jQuery.checkState);
753 test("Chain slideToggle out", function() {
754 jQuery('#slidetoggleout div').saveState(jQuery.support.shrinkWrapBlocks).slideToggle('fast').slideToggle('fast',jQuery.checkState);
757 test("Chain fadeToggle in", function() {
758 jQuery('#fadetogglein div').saveState().fadeToggle('fast').fadeToggle('fast',jQuery.checkState);
760 test("Chain fadeToggle out", function() {
761 jQuery('#fadetoggleout div').saveState().fadeToggle('fast').fadeToggle('fast',jQuery.checkState);
764 test("Chain fadeTo 0.5 1.0 with easing and callback)", function() {
765 jQuery('#fadeto div').saveState().fadeTo('fast',0.5).fadeTo('fast',1.0,'linear',jQuery.checkState);
768 jQuery.makeTest = function( text ){
769 var elem = jQuery("<div></div>")
770 .attr("id", "test" + jQuery.makeTest.id++)
775 .appendTo("#fx-tests")
777 jQuery(this).next().toggle();
784 jQuery.makeTest.id = 1;
786 test("jQuery.show('fast') doesn't clear radio buttons (bug #1095)", function () {
790 var $checkedtest = jQuery("#checkedtest");
791 // IE6 was clearing "checked" in jQuery(elem).show("fast");
792 $checkedtest.hide().show("fast", function() {
793 ok( !! jQuery(":radio:first", $checkedtest).attr("checked"), "Check first radio still checked." );
794 ok( ! jQuery(":radio:last", $checkedtest).attr("checked"), "Check last radio still NOT checked." );
795 ok( !! jQuery(":checkbox:first", $checkedtest).attr("checked"), "Check first checkbox still checked." );
796 ok( ! jQuery(":checkbox:last", $checkedtest).attr("checked"), "Check last checkbox still NOT checked." );
801 test("animate with per-property easing", function(){
806 var _test1_called = false;
807 var _test2_called = false;
808 var _default_test_called = false;
810 jQuery.easing['_test1'] = function() {
811 _test1_called = true;
814 jQuery.easing['_test2'] = function() {
815 _test2_called = true;
818 jQuery.easing['_default_test'] = function() {
819 _default_test_called = true;
822 jQuery({a:0,b:0,c:0}).animate({
826 }, 400, '_default_test', function(){
828 ok(_test1_called, "Easing function (1) called");
829 ok(_test2_called, "Easing function (2) called");
830 ok(_default_test_called, "Easing function (_default) called");
835 test("hide hidden elements (bug #7141)", function() {
839 var div = jQuery("<div style='display:none'></div>").appendTo("#main");
840 equals( div.css("display"), "none", "Element is hidden by default" );
842 ok( !div.data("olddisplay"), "olddisplay is undefined after hiding an already-hidden element" );
844 equals( div.css("display"), "block", "Show a double-hidden element" );
849 test("hide hidden elements, with animation (bug #7141)", function() {
854 var div = jQuery("<div style='display:none'></div>").appendTo("#main");
855 equals( div.css("display"), "none", "Element is hidden by default" );
856 div.hide(1, function () {
857 ok( !div.data("olddisplay"), "olddisplay is undefined after hiding an already-hidden element" );
858 div.show(1, function () {
859 equals( div.css("display"), "block", "Show a double-hidden element" );