1 files changed, 35 insertions, 28 deletions

diff --git a/tests/custom_columns/tests.py b/tests/custom_columns/tests.py
index 20e649de03..32a48b4840 100644
--- a/tests/custom_columns/tests.py
+++ b/tests/custom_columns/tests.py
@@ -5,22 +5,25 @@ from .models import Article, Author
 
 
 class CustomColumnsTests(TestCase):
-
     @classmethod
     def setUpTestData(cls):
         cls.a1 = Author.objects.create(first_name="John", last_name="Smith")
         cls.a2 = Author.objects.create(first_name="Peter", last_name="Jones")
         cls.authors = [cls.a1, cls.a2]
 
-        cls.article = Article.objects.create(headline="Django lets you build web apps easily", primary_author=cls.a1)
+        cls.article = Article.objects.create(
+            headline="Django lets you build web apps easily", primary_author=cls.a1
+        )
         cls.article.authors.set(cls.authors)
 
     def test_query_all_available_authors(self):
         self.assertQuerysetEqual(
-            Author.objects.all(), [
-                "Peter Jones", "John Smith",
+            Author.objects.all(),
+            [
+                "Peter Jones",
+                "John Smith",
             ],
-            str
+            str,
         )
 
     def test_get_first_name(self):
@@ -31,10 +34,11 @@ class CustomColumnsTests(TestCase):
 
     def test_filter_first_name(self):
         self.assertQuerysetEqual(
-            Author.objects.filter(first_name__exact="John"), [
+            Author.objects.filter(first_name__exact="John"),
+            [
                 "John Smith",
             ],
-            str
+            str,
         )
 
     def test_field_error(self):
@@ -54,43 +58,42 @@ class CustomColumnsTests(TestCase):
 
     def test_get_all_authors_for_an_article(self):
         self.assertQuerysetEqual(
-            self.article.authors.all(), [
+            self.article.authors.all(),
+            [
                 "Peter Jones",
                 "John Smith",
             ],
-            str
+            str,
         )
 
     def test_get_all_articles_for_an_author(self):
         self.assertQuerysetEqual(
-            self.a1.article_set.all(), [
+            self.a1.article_set.all(),
+            [
                 "Django lets you build web apps easily",
             ],
-            lambda a: a.headline
+            lambda a: a.headline,
         )
 
     def test_get_author_m2m_relation(self):
         self.assertQuerysetEqual(
-            self.article.authors.filter(last_name='Jones'), [
-                "Peter Jones"
-            ],
-            str
+            self.article.authors.filter(last_name="Jones"), ["Peter Jones"], str
         )
 
     def test_author_querying(self):
         self.assertSequenceEqual(
-            Author.objects.all().order_by('last_name'),
+            Author.objects.all().order_by("last_name"),
             [self.a2, self.a1],
         )
 
     def test_author_filtering(self):
         self.assertSequenceEqual(
-            Author.objects.filter(first_name__exact='John'),
+            Author.objects.filter(first_name__exact="John"),
             [self.a1],
         )
 
     def test_author_get(self):
-        self.assertEqual(self.a1, Author.objects.get(first_name__exact='John'))
+        self.assertEqual(self.a1, Author.objects.get(first_name__exact="John"))
 
     def test_filter_on_nonexistent_field(self):
         msg = (
@@ -98,25 +101,29 @@ class CustomColumnsTests(TestCase):
             "Author_ID, article, first_name, last_name, primary_set"
         )
         with self.assertRaisesMessage(FieldError, msg):
-            Author.objects.filter(firstname__exact='John')
+            Author.objects.filter(firstname__exact="John")
 
     def test_author_get_attributes(self):
-        a = Author.objects.get(last_name__exact='Smith')
-        self.assertEqual('John', a.first_name)
-        self.assertEqual('Smith', a.last_name)
-        with self.assertRaisesMessage(AttributeError, "'Author' object has no attribute 'firstname'"):
-            getattr(a, 'firstname')
+        a = Author.objects.get(last_name__exact="Smith")
+        self.assertEqual("John", a.first_name)
+        self.assertEqual("Smith", a.last_name)
+        with self.assertRaisesMessage(
+            AttributeError, "'Author' object has no attribute 'firstname'"
+        ):
+            getattr(a, "firstname")
 
-        with self.assertRaisesMessage(AttributeError, "'Author' object has no attribute 'last'"):
-            getattr(a, 'last')
+        with self.assertRaisesMessage(
+            AttributeError, "'Author' object has no attribute 'last'"
+        ):
+            getattr(a, "last")
 
     def test_m2m_table(self):
         self.assertSequenceEqual(
-            self.article.authors.all().order_by('last_name'),
+            self.article.authors.all().order_by("last_name"),
             [self.a2, self.a1],
         )
         self.assertSequenceEqual(self.a1.article_set.all(), [self.article])
         self.assertSequenceEqual(
-            self.article.authors.filter(last_name='Jones'),
+            self.article.authors.filter(last_name="Jones"),
             [self.a2],
         )