1 files changed, 21 insertions, 18 deletions
diff --git a/tests/errors/test_exceptions.py b/tests/errors/test_exceptions.py
index 2fba25a6..079a5406 100644
--- a/tests/errors/test_exceptions.py
+++ b/tests/errors/test_exceptions.py
@@ -16,19 +16,19 @@ def dispatch(exc, *args):
 
 
 def gen_xml(exc, *args):
-    data = {'module': 'data'}  # noqa
+    data = {"module": "data"}  # noqa
 
     raise exc(*args)
 
 
 class TestInvalidAttributeError(base.BaseTestCase):
-
     def test_no_valid_values(self):
         # When given no valid values, InvalidAttributeError simply displays a
         # message indicating the invalid value, the component type, the
         # component name, and the attribute name.
         message = "'{0}' is an invalid value for attribute {1}.{2}".format(
-            "fnord", "type.name", "fubar")
+            "fnord", "type.name", "fubar"
+        )
         with ExpectedException(errors.InvalidAttributeError, message):
             dispatch(errors.InvalidAttributeError, "fubar", "fnord")
 
@@ -37,46 +37,49 @@ class TestInvalidAttributeError(base.BaseTestCase):
         # indicating the invalid value, the component type, the component name,
         # and the attribute name; additionally, it lists the valid values for
         # the current component type & name.
-        valid_values = ['herp', 'derp']
+        valid_values = ["herp", "derp"]
         message = "'{0}' is an invalid value for attribute {1}.{2}".format(
-            "fnord", "type.name", "fubar")
+            "fnord", "type.name", "fubar"
+        )
         message += "\nValid values include: {0}".format(
-            ', '.join("'{0}'".format(value) for value in valid_values))
+            ", ".join("'{0}'".format(value) for value in valid_values)
+        )
 
         with ExpectedException(errors.InvalidAttributeError, message):
-            dispatch(errors.InvalidAttributeError, "fubar", "fnord",
-                     valid_values)
+            dispatch(errors.InvalidAttributeError, "fubar", "fnord", valid_values)
 
 
 class TestMissingAttributeError(base.BaseTestCase):
-
     def test_with_single_missing_attribute(self):
         # When passed a single missing attribute, display a message indicating
         #  * the missing attribute
         #  * which component type and component name is missing it.
-        missing_attribute = 'herp'
+        missing_attribute = "herp"
         message = "Missing {0} from an instance of '{1}'".format(
-            missing_attribute, 'type.name')
+            missing_attribute, "type.name"
+        )
 
         with ExpectedException(errors.MissingAttributeError, message):
             dispatch(errors.MissingAttributeError, missing_attribute)
 
-        with ExpectedException(errors.MissingAttributeError,
-                               message.replace('type.name', 'module')):
+        with ExpectedException(
+            errors.MissingAttributeError, message.replace("type.name", "module")
+        ):
             gen_xml(errors.MissingAttributeError, missing_attribute)
 
     def test_with_multiple_missing_attributes(self):
         # When passed multiple missing attributes, display a message indicating
         #  * the missing attributes
         #  * which component type and component name is missing it.
-        missing_attribute = ['herp', 'derp']
+        missing_attribute = ["herp", "derp"]
         message = "One of {0} must be present in '{1}'".format(
-            ', '.join("'{0}'".format(value) for value in missing_attribute),
-            'type.name')
+            ", ".join("'{0}'".format(value) for value in missing_attribute), "type.name"
+        )
 
         with ExpectedException(errors.MissingAttributeError, message):
             dispatch(errors.MissingAttributeError, missing_attribute)
 
-        with ExpectedException(errors.MissingAttributeError,
-                               message.replace('type.name', 'module')):
+        with ExpectedException(
+            errors.MissingAttributeError, message.replace("type.name", "module")
+        ):
             gen_xml(errors.MissingAttributeError, missing_attribute)