def test_order_of_execution(self): 

       o = tmpdir.ensure('ordertest', dir=1)

       tfile = o.join('test_orderofexecution.py')

       tfile.write(py.code.Source("""

               l = []

               def test_1():

                   l.append(1)

               def test_2():

                   l.append(2)

               def test_3():

                   assert l == [1,2]

               class Testmygroup:

                   reslist = l

                   def test_1(self):

                       self.reslist.append(1)

                   def test_2(self):

                       self.reslist.append(2)

                   def test_3(self):

                       self.reslist.append(3)

                   def test_4(self):

                       assert self.reslist == [1,2,1,2,3]

           """))

       session = self.mainsession(o) 

       l = session.getitemoutcomepairs(Failed)

       assert len(l) == 0 

       l = session.getitemoutcomepairs(Passed)

       assert len(l) == 7 

       # also test listnames() here ... 

       item, result = l[-1]

       assert item.name == 'test_4' 

->     names = item.listnames()

       assert names == ['ordertest', 'test_orderofexecution.py', 'Testmygroup', '()', 'test_4']