From: MORGAN <morgan@morgangraphics.com>
Date: Tue, 16 Oct 2012 14:25:08 +0000 (-0400)
Subject: Return correct index for no-arg index() calls. Fixes #10977. Closes gh-971
X-Git-Tag: 1.9.0b1~197
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=4bb46f413a0e2f6933013b26d2aceddca6cf03f1;p=jquery.git

Return correct index for no-arg index() calls. Fixes #10977. Closes gh-971
---

diff --git a/src/traversing.js b/src/traversing.js
index 4c58ae0b8..d92bec4cb 100644
--- a/src/traversing.js
+++ b/src/traversing.js
@@ -112,7 +112,7 @@ jQuery.fn.extend({
 
 		// No argument, return index in parent
 		if ( !elem ) {
-			return ( this[0] && this[0].parentNode ) ? this.prevAll().length : -1;
+			return ( this[0] && this[0].parentNode ) ? this.first().prevAll().length : -1;
 		}
 
 		// index in selector
diff --git a/test/unit/traversing.js b/test/unit/traversing.js
index dd957c28b..b93bede29 100644
--- a/test/unit/traversing.js
+++ b/test/unit/traversing.js
@@ -651,3 +651,12 @@ test("eq('-1') #10616", function() {
 	equal( $divs.eq( "-1" ).length, 1, "The string '-1' returns a selection that has length 1" );
 	deepEqual( $divs.eq( "-1" ), $divs.eq( -1 ), "String and number -1 match" );
 });
+
+test("index(no arg) #10977", function() {
+	expect(1);
+	
+	var $list = jQuery("<ul id='indextest'><li>THIS ONE</li><li class='one'>a</li><li class='two'>b</li><li class='three'>c</li></ul>");
+	jQuery("#qunit-fixture").append( $list );
+	strictEqual ( jQuery( "#indextest li:not(.one,.two)" ).index() , 0, "No Argument Index Check" );
+	$list.remove();
+});