+ if (jQuery.support.deleteExpando) {
+ expected = false;
+ actual = jQuery.expando in elem;
+ }
+ else {
+ expected = null;
+ actual = elem[ jQuery.expando ];
+ }
+
+ equals( actual, expected, "Removing the last item in the data object destroys it" );
+ }
+
+ jQuery.data(elem, "foo", "foo1");
+ jQuery._data(elem, "foo", "foo2");
+
+ equals( jQuery.data(elem, "foo"), "foo1", "(sanity check) Ensure data is set in user data object" );
+ equals( jQuery._data(elem, "foo"), "foo2", "(sanity check) Ensure data is set in internal data object" );
+
+ jQuery.removeData(elem, "foo", true);
+
+ strictEqual( jQuery.data(elem, jQuery.expando), undefined, "Removing the last item in internal data destroys the internal data object" );
+
+ jQuery._data(elem, "foo", "foo2");
+ equals( jQuery._data(elem, "foo"), "foo2", "(sanity check) Ensure data is set in internal data object" );
+
+ jQuery.removeData(elem, "foo");
+ equals( jQuery._data(elem, "foo"), "foo2", "(sanity check) jQuery.removeData for user data does not remove internal data" );
+
+ if (elem.nodeType) {
+ oldCacheLength = getCacheLength();
+ jQuery.removeData(elem, "foo", true);
+ equals( getCacheLength(), oldCacheLength - 1, "Removing the last item in the internal data object also destroys the user data object when it is empty" );
+ }
+ else {
+ jQuery.removeData(elem, "foo", true);
+
+ if (jQuery.support.deleteExpando) {
+ expected = false;
+ actual = jQuery.expando in elem;
+ }
+ else {
+ expected = null;
+ actual = elem[ jQuery.expando ];
+ }
+
+ equals( actual, expected, "Removing the last item in the internal data object also destroys the user data object when it is empty" );
+ }
+}
+
+test("jQuery.data", function() {
+ expect(128);
+
+ var div = document.createElement("div");