Add missing super().tearDown() for test classes with custom base cl…

…asses (#2761)

Addresses #2752

tests/functional/test_mturk.py

@@ -23,7 +23,7 @@ def setUp(self):
         self.stubber.activate()
 
     def tearDown(self):
-        super().setUp()
+        super().tearDown()
         self.stubber.deactivate()
 
     def test_list_hits_aliased(self):

tests/functional/test_sagemaker.py

@@ -15,6 +15,7 @@ def _hook(self, **kwargs):
         self.hook_calls.append(kwargs['event_name'])
 
     def tearDown(self):
+        super().tearDown()
         self.stubber.deactivate()
 
     def test_event_with_old_prefix(self):

tests/unit/auth/test_signers.py

@@ -716,6 +716,7 @@ def setUp(self):
 
     def tearDown(self):
         self.time_patch.stop()
+        super().tearDown()
 
     def test_presign_with_query_string(self):
         self.request.url = (
@@ -808,6 +809,7 @@ def setUp(self):
 
     def tearDown(self):
         self.datetime_patcher.stop()
+        super().tearDown()
 
     def test_presign_no_params(self):
         request = AWSRequest()
@@ -1044,6 +1046,7 @@ def setUp(self):
 
     def tearDown(self):
         self.time_patch.stop()
+        super().tearDown()
 
     def test_presign_post(self):
         self.auth.add_auth(self.request)
@@ -1110,6 +1113,7 @@ def setUp(self):
 
     def tearDown(self):
         self.datetime_patcher.stop()
+        super().tearDown()
 
     def test_presign_post(self):
         self.auth.add_auth(self.request)

tests/unit/test_configloader.py

@@ -23,7 +23,7 @@
     multi_file_load_config,
     raw_config_parse,
 )
-from tests import BaseEnvVar, mock, unittest
+from tests import mock, unittest
 
 
 def path(filename):
@@ -33,7 +33,7 @@ def path(filename):
     return os.path.join(directory, filename)
 
 
-class TestConfigLoader(BaseEnvVar):
+class TestConfigLoader(unittest.TestCase):
     def setUp(self):
         self.tempdir = tempfile.mkdtemp()