no longer check if indirect metafunc.parametrize params are funcarg names

CHANGELOG

@@ -10,6 +10,7 @@ Changes between 2.2.1 and 2.2.2.dev
 - fix issue106: allow parametrize to be applied multiple times
   e.g. from module, class and at function level.
 - fix issue107: actually perform session scope finalization
+- don't check in parametrize if indirect parameters are funcarg names
 - add chdir method to monkeypatch funcarg
 - fix crash resulting from calling monkeypatch undo a second time
 - extend reports accepting kwargs to set arbitrary additional attributes

_pytest/python.py

@@ -629,9 +629,11 @@ class Metafunc:
         if not isinstance(argnames, (tuple, list)):
             argnames = (argnames,)
             argvalues = [(val,) for val in argvalues]
-        for arg in argnames:
-            if arg not in self.funcargnames:
-                raise ValueError("%r has no argument %r" %(self.function, arg))
+        if not indirect:
+            #XXX should we also check for the opposite case?
+            for arg in argnames:
+                if arg not in self.funcargnames:
+                    raise ValueError("%r has no argument %r" %(self.function, arg))
         valtype = indirect and "params" or "funcargs"
         if not ids:
             idmaker = IDMaker()

testing/test_python.py

@@ -983,11 +983,12 @@ class TestMetafunc:
         metafunc = funcargs.Metafunc(func)
         metafunc.parametrize('x', [1], indirect=True)
         metafunc.parametrize('y', [2,3], indirect=True)
+        metafunc.parametrize('unnamed', [1], indirect=True)
         assert len(metafunc._calls) == 2
         assert metafunc._calls[0].funcargs == {}
         assert metafunc._calls[1].funcargs == {}
-        assert metafunc._calls[0].params == dict(x=1,y=2)
-        assert metafunc._calls[1].params == dict(x=1,y=3)
+        assert metafunc._calls[0].params == dict(x=1,y=2, unnamed=1)
+        assert metafunc._calls[1].params == dict(x=1,y=3, unnamed=1)
 
     def test_addcalls_and_parametrize_indirect(self):
         def func(x, y): pass