Make setting .css(name, undefined) a no-op. Fixes #4388.

[jquery.git] / test / unit / css.js

diff --git a/test/unit/css.js b/test/unit/css.js
index 0e91ae1..24aba79 100644 (file)
--- a/test/unit/css.js
+++ b/test/unit/css.js
@@ -64,7 +64,8 @@ test("css(String|Hash)", function() {
 });
 
 test("css(String, Object)", function() {
-       expect(19);
+       expect(21);
+
        ok( jQuery('#nothiddendiv').is(':visible'), 'Modifying CSS display: Assert element is visible');
        jQuery('#nothiddendiv').css("display", 'none');
        ok( !jQuery('#nothiddendiv').is(':visible'), 'Modified CSS display: Assert element is hidden');
@@ -96,6 +97,13 @@ test("css(String, Object)", function() {
        // opera sometimes doesn't update 'display' correctly, see #2037
        jQuery("#t2037")[0].innerHTML = jQuery("#t2037")[0].innerHTML
        equals( jQuery("#t2037 .hidden").css("display"), "none", "Make sure browser thinks it is hidden" );
+
+       var div = jQuery("#nothiddendiv"),
+               display = div.css("display"),
+               ret = div.css("display", undefined);
+
+       equals( ret, div, "Make sure setting undefined returns the original set." );
+       equals( div.css("display"), display, "Make sure that the display wasn't changed." );
 });
 
 if(jQuery.browser.msie) {