Fixed a broken unittest and fixed a bug that required multiple tests to be put into parentheses for chaning.

--HG--
branch : trunk
diff --git a/tests/test_various.py b/tests/test_various.py
index 535b97c..36f039a 100644
--- a/tests/test_various.py
+++ b/tests/test_various.py
@@ -67,7 +67,7 @@
     for env in Environment(), SandboxedEnvironment():
         tmpl = env.from_string('{{ foo.items() }}')
         assert tmpl.render(foo={'items': 42}) == "[('items', 42)]"
-        tmpl = env.from_string('{{ foo|attr("items") }}')
+        tmpl = env.from_string('{{ foo|attr("items")() }}')
         assert tmpl.render(foo={'items': 42}) == "[('items', 42)]"
         tmpl = env.from_string('{{ foo["items"] }}')
         assert tmpl.render(foo={'items': 42}) == '42'