Adopt Black and isort (SC-700) (#1157)

Applied Black and isort, fixed any linting issues, updated tox.ini
and CI.

1 files changed, 11 insertions, 10 deletions

diff --git a/tests/unittests/test_registry.py b/tests/unittests/test_registry.py
index 4c7df186..28ee04ec 100644
--- a/tests/unittests/test_registry.py
+++ b/tests/unittests/test_registry.py
@@ -1,32 +1,33 @@
 # This file is part of cloud-init. See LICENSE file for license information.
 
 from cloudinit.registry import DictRegistry
-
-from tests.unittests.helpers import (mock, TestCase)
+from tests.unittests.helpers import TestCase, mock
 
 
 class TestDictRegistry(TestCase):
-
     def test_added_item_included_in_output(self):
         registry = DictRegistry()
-        item_key, item_to_register = 'test_key', mock.Mock()
+        item_key, item_to_register = "test_key", mock.Mock()
         registry.register_item(item_key, item_to_register)
-        self.assertEqual({item_key: item_to_register},
-                         registry.registered_items)
+        self.assertEqual(
+            {item_key: item_to_register}, registry.registered_items
+        )
 
     def test_registry_starts_out_empty(self):
         self.assertEqual({}, DictRegistry().registered_items)
 
     def test_modifying_registered_items_isnt_exposed_to_other_callers(self):
         registry = DictRegistry()
-        registry.registered_items['test_item'] = mock.Mock()
+        registry.registered_items["test_item"] = mock.Mock()
         self.assertEqual({}, registry.registered_items)
 
     def test_keys_cannot_be_replaced(self):
         registry = DictRegistry()
-        item_key = 'test_key'
+        item_key = "test_key"
         registry.register_item(item_key, mock.Mock())
-        self.assertRaises(ValueError,
-                          registry.register_item, item_key, mock.Mock())
+        self.assertRaises(
+            ValueError, registry.register_item, item_key, mock.Mock()
+        )
+
 
 # vi: ts=4 expandtab