Make sure closest works on disconnected DOM nodes. Fixes #7142.

diff --git a/src/traversing.js b/src/traversing.js
index de250e6..5a479f2 100644 (file)
--- a/src/traversing.js
+++ b/src/traversing.js
@@ -108,7 +108,7 @@ jQuery.fn.extend({
 
                                } else {
                                        cur = cur.parentNode;
-                                       if ( !cur.ownerDocument || cur === context ) {
+                                       if ( !cur || !cur.ownerDocument || cur === context ) {
                                                break;
                                        }
                                }

diff --git a/test/unit/traversing.js b/test/unit/traversing.js
index 0636f0c..f9e7937 100644 (file)
--- a/test/unit/traversing.js
+++ b/test/unit/traversing.js
@@ -122,7 +122,7 @@ test("filter(jQuery)", function() {
 })
 
 test("closest()", function() {
-       expect(10);
+       expect(11);
        same( jQuery("body").closest("body").get(), q("body"), "closest(body)" );
        same( jQuery("body").closest("html").get(), q("html"), "closest(html)" );
        same( jQuery("body").closest("div").get(), [], "closest(div)" );
@@ -139,7 +139,9 @@ test("closest()", function() {
        
        //Test that .closest() returns unique'd set
        equals( jQuery('#main p').closest('#main').length, 1, "Closest should return a unique set" );
-       
+
+       // Test on disconnected node
+       equals( jQuery("<div><p></p></div>").find("p").closest("table").length, 0, "Make sure disconnected closest work." );
 });
 
 test("closest(Array)", function() {