nose plugin wont call setup functions that arent made for it

--HG--
branch : trunk

_py/test/plugin/pytest_nose.py

@@ -85,7 +85,9 @@ def pytest_make_collect_report(collector):
 def call_optional(obj, name):
     method = getattr(obj, name, None)
     if method:
-        method()
-        return True
-    else:
-        return False
+        argspec = inspect.getargspec(method)
+        if argspec[0] == ['self']:
+            argspec = argspec[1:]
+        if not any(argspec):
+            method()
+            return True