Fix setup/teardown on mixed-in class

beat/core/test/test_docker_execution.py

@@ -40,18 +40,17 @@ from .test_execution import BaseExecutionMixIn
 class TestDockerExecution(BaseExecutionMixIn):
 
     @classmethod
-    def setUpClass(cls):
+    def setup_class(cls):
         cls.host = Host(raise_on_errors=False)
 
 
     @classmethod
-    def tearDownClass(cls):
+    def teardown_class(cls):
         cls.host.teardown()
         cleanup()
 
 
-    def tearDown(self):
-        super(TestDockerExecution, self).tearDown()
+    def teardown(self):
         self.host.teardown()