Style fix of tests (#4154)

Clean up code style.

tests/browsable_api/test_browsable_api.py

@@ -16,7 +16,11 @@ class DropdownWithAuthTests(TestCase):
         self.username = 'john'
         self.email = 'lennon@thebeatles.com'
         self.password = 'password'
-        self.user = User.objects.create_user(self.username, self.email, self.password)
+        self.user = User.objects.create_user(
+            self.username,
+            self.email,
+            self.password
+        )
 
     def tearDown(self):
         self.client.logout()
@@ -46,7 +50,11 @@ class NoDropdownWithoutAuthTests(TestCase):
         self.username = 'john'
         self.email = 'lennon@thebeatles.com'
         self.password = 'password'
-        self.user = User.objects.create_user(self.username, self.email, self.password)
+        self.user = User.objects.create_user(
+            self.username,
+            self.email,
+            self.password
+        )
 
     def tearDown(self):
         self.client.logout()

tests/models.py

@@ -17,7 +17,11 @@ class RESTFrameworkModel(models.Model):
 
 
 class BasicModel(RESTFrameworkModel):
-    text = models.CharField(max_length=100, verbose_name=_("Text comes here"), help_text=_("Text description."))
+    text = models.CharField(
+        max_length=100,
+        verbose_name=_("Text comes here"),
+        help_text=_("Text description.")
+    )
 
 
 class BaseFilterableItem(RESTFrameworkModel):
@@ -84,5 +88,6 @@ class OneToOneTarget(RESTFrameworkModel):
 
 class NullableOneToOneSource(RESTFrameworkModel):
     name = models.CharField(max_length=100)
-    target = models.OneToOneField(OneToOneTarget, null=True, blank=True,
+    target = models.OneToOneField(
+        OneToOneTarget, null=True, blank=True,
         related_name='nullable_source', on_delete=models.CASCADE)