test(jqLite): add a missing test for jqLite#text

Author: IgorMinar

test/jqLiteSpec.js

@@ -881,6 +881,12 @@ describe('jqLite', function() {
       expect(element.text('xyz') == element).toBeTruthy();
       expect(element.text()).toEqual('xyzxyz');
     });
+
+    it('should return text only for element or text nodes', function() {
+      expect(jqLite('<div>foo</div>').text()).toBe('foo');
+      expect(jqLite('<div>foo</div>').contents().eq(0).text()).toBe('foo');
+      expect(jqLite(document.createComment('foo')).text()).toBe('');
+    });
   });