Ran flake8 and black against tests.

tests/test_features.py

@@ -8,21 +8,26 @@ from dungeonsheets.features import create_feature, Feature, all_features
 
 class TestFeatures(TestCase):
     """Tests for features and feature-related activities."""
+
     def test_all_features(self):
         # Make sure only features are returned
         for ThisFeature in all_features():
-            self.assertTrue(isinstance(ThisFeature, type),
-                            f"``all_features`` returned {ThisFeature} (not a class)")
-            self.assertTrue(issubclass(ThisFeature, Feature),
-                            f"``all_features`` returned {ThisFeature} (not a feature)")
+            self.assertTrue(
+                isinstance(ThisFeature, type),
+                f"``all_features`` returned {ThisFeature} (not a class)",
+            )
+            self.assertTrue(
+                issubclass(ThisFeature, Feature),
+                f"``all_features`` returned {ThisFeature} (not a feature)",
+            )
         # Pick a couple of known features to spot-check for
         all_the_features = list(all_features())
         self.assertIn(features.FalseIdentity, all_the_features)
         self.assertIn(features.DivineSmite, all_the_features)
-    
+
     def test_create_feature(self):
         NewFeature = create_feature(name="Hello world")
         self.assertTrue(issubclass(NewFeature, Feature))
-        self.assertEqual(NewFeature.name, 'Hello world')
+        self.assertEqual(NewFeature.name, "Hello world")
         feature = NewFeature()
         print(feature, feature.__class__, type(feature))