Add some tests for jQuery.isWindow and make sure that we're operating against an...

diff --git a/src/core.js b/src/core.js
index 9cb519b..b747e5b 100644 (file)
--- a/src/core.js
+++ b/src/core.js
@@ -476,7 +476,7 @@ jQuery.extend({
 
        // A crude way of determining if an object is a window
        isWindow: function( obj ) {
-               return "setInterval" in obj;
+               return obj && typeof obj === "object" && "setInterval" in obj;
        },
 
        type: function( obj ) {

diff --git a/test/unit/core.js b/test/unit/core.js
index 811d13f..eec3d7c 100644 (file)
--- a/test/unit/core.js
+++ b/test/unit/core.js
@@ -432,6 +432,25 @@ test("isXMLDoc - XML", function() {
 });
 }
 
+test("isWindow", function() {
+       expect( 12 );
+
+       ok( jQuery.isWindow(window), "window" );
+       ok( !jQuery.isWindow(), "empty" );
+       ok( !jQuery.isWindow(null), "null" );
+       ok( !jQuery.isWindow(undefined), "undefined" );
+       ok( !jQuery.isWindow(document), "document" );
+       ok( !jQuery.isWindow(document.documentElement), "documentElement" );
+       ok( !jQuery.isWindow(""), "string" );
+       ok( !jQuery.isWindow(1), "number" );
+       ok( !jQuery.isWindow(true), "boolean" );
+       ok( !jQuery.isWindow({}), "object" );
+       // HMMM
+       // ok( !jQuery.isWindow({ setInterval: function(){} }), "fake window" );
+       ok( !jQuery.isWindow(/window/), "regexp" );
+       ok( !jQuery.isWindow(function(){}), "function" );
+});
+
 test("jQuery('html')", function() {
        expect(15);