slapos/testing: add request final state in e2e.py

slapos/testing/e2e.py

@@ -46,9 +46,9 @@ class EndToEndTestCase(unittest.TestCase):
     handler.setFormatter(formatter)
 
   @classmethod
-  def tearDownClass(cls):
+  def tearDownClass(cls, final_state='destroyed'):
     for args, kw in cls._requested.values():
-      kw['state'] = 'destroyed'
+      kw['state'] = final_state
       cls._request(*args, **kw)
 
   @classmethod