1 files changed, 30 insertions, 24 deletions
diff --git a/tests/db_functions/text/test_pad.py b/tests/db_functions/text/test_pad.py
index fbe82c166e..006a27c0e8 100644
--- a/tests/db_functions/text/test_pad.py
+++ b/tests/db_functions/text/test_pad.py
@@ -8,45 +8,51 @@ from ..models import Author
 
 class PadTests(TestCase):
     def test_pad(self):
-        Author.objects.create(name='John', alias='j')
-        none_value = '' if connection.features.interprets_empty_strings_as_nulls else None
+        Author.objects.create(name="John", alias="j")
+        none_value = (
+            "" if connection.features.interprets_empty_strings_as_nulls else None
+        )
         tests = (
-            (LPad('name', 7, Value('xy')), 'xyxJohn'),
-            (RPad('name', 7, Value('xy')), 'Johnxyx'),
-            (LPad('name', 6, Value('x')), 'xxJohn'),
-            (RPad('name', 6, Value('x')), 'Johnxx'),
+            (LPad("name", 7, Value("xy")), "xyxJohn"),
+            (RPad("name", 7, Value("xy")), "Johnxyx"),
+            (LPad("name", 6, Value("x")), "xxJohn"),
+            (RPad("name", 6, Value("x")), "Johnxx"),
             # The default pad string is a space.
-            (LPad('name', 6), '  John'),
-            (RPad('name', 6), 'John  '),
+            (LPad("name", 6), "  John"),
+            (RPad("name", 6), "John  "),
             # If string is longer than length it is truncated.
-            (LPad('name', 2), 'Jo'),
-            (RPad('name', 2), 'Jo'),
-            (LPad('name', 0), ''),
-            (RPad('name', 0), ''),
-            (LPad('name', None), none_value),
-            (RPad('name', None), none_value),
+            (LPad("name", 2), "Jo"),
+            (RPad("name", 2), "Jo"),
+            (LPad("name", 0), ""),
+            (RPad("name", 0), ""),
+            (LPad("name", None), none_value),
+            (RPad("name", None), none_value),
             (LPad(Value(None), 1), none_value),
             (RPad(Value(None), 1), none_value),
-            (LPad('goes_by', 1), none_value),
-            (RPad('goes_by', 1), none_value),
+            (LPad("goes_by", 1), none_value),
+            (RPad("goes_by", 1), none_value),
         )
         for function, padded_name in tests:
             with self.subTest(function=function):
                 authors = Author.objects.annotate(padded_name=function)
-                self.assertQuerysetEqual(authors, [padded_name], lambda a: a.padded_name, ordered=False)
+                self.assertQuerysetEqual(
+                    authors, [padded_name], lambda a: a.padded_name, ordered=False
+                )
 
     def test_pad_negative_length(self):
         for function in (LPad, RPad):
             with self.subTest(function=function):
-                with self.assertRaisesMessage(ValueError, "'length' must be greater or equal to 0."):
-                    function('name', -1)
+                with self.assertRaisesMessage(
+                    ValueError, "'length' must be greater or equal to 0."
+                ):
+                    function("name", -1)
 
     def test_combined_with_length(self):
-        Author.objects.create(name='Rhonda', alias='john_smith')
-        Author.objects.create(name='♥♣♠', alias='bytes')
-        authors = Author.objects.annotate(filled=LPad('name', Length('alias')))
+        Author.objects.create(name="Rhonda", alias="john_smith")
+        Author.objects.create(name="♥♣♠", alias="bytes")
+        authors = Author.objects.annotate(filled=LPad("name", Length("alias")))
         self.assertQuerysetEqual(
-            authors.order_by('alias'),
-            ['  ♥♣♠', '    Rhonda'],
+            authors.order_by("alias"),
+            ["  ♥♣♠", "    Rhonda"],
             lambda a: a.filled,
         )