diff --git a/tests/test_validators.py b/tests/test_validators.py
index 77a7fc6d9..42f5635e5 100644
--- a/tests/test_validators.py
+++ b/tests/test_validators.py
@@ -37,7 +37,7 @@ class RelatedModel(models.Model):
 
 class RelatedModelSerializer(serializers.ModelSerializer):
     username = serializers.CharField(source='user.username',
-                                     validators=[UniqueValidator(queryset=UniquenessModel.objects.all(), lookup='iexact')])  # NOQA
+        validators=[UniqueValidator(queryset=UniquenessModel.objects.all(), lookup='iexact')])  # NOQA
 
     class Meta:
         model = RelatedModel
@@ -246,12 +246,10 @@ class TestUniquenessTogetherValidation(TestCase):
         When model fields are not included in a serializer, then uniqueness
         validators should not be added for that field.
         """
-
         class ExcludedFieldSerializer(serializers.ModelSerializer):
             class Meta:
                 model = UniquenessTogetherModel
                 fields = ('id', 'race_name',)
-
         serializer = ExcludedFieldSerializer()
         expected = dedent("""
             ExcludedFieldSerializer():
@@ -265,7 +263,6 @@ class TestUniquenessTogetherValidation(TestCase):
         When serializer fields are read only, then uniqueness
         validators should not be added for that field.
         """
-
         class ReadOnlyFieldSerializer(serializers.ModelSerializer):
             class Meta:
                 model = UniquenessTogetherModel
@@ -285,7 +282,6 @@ class TestUniquenessTogetherValidation(TestCase):
         """
         Ensure validators can be explicitly removed..
         """
-
         class NoValidatorsSerializer(serializers.ModelSerializer):
             class Meta:
                 model = UniquenessTogetherModel
@@ -334,7 +330,6 @@ class TestUniquenessTogetherValidation(TestCase):
         filter_queryset should add value from existing instance attribute
         if it is not provided in attributes dict
         """
-
         class MockQueryset(object):
             def filter(self, **kwargs):
                 self.called_with = kwargs
@@ -417,7 +412,6 @@ class TestUniquenessForDateValidation(TestCase):
             'published': datetime.date(2000, 1, 1)
         }
 
-
 # Tests for `UniqueForMonthValidator`
 # ----------------------------------
 
@@ -434,6 +428,7 @@ class UniqueForMonthSerializer(serializers.ModelSerializer):
 
 
 class UniqueForMonthTests(TestCase):
+
     def setUp(self):
         self.instance = UniqueForMonthModel.objects.create(
             slug='existing', published='2017-01-01'
@@ -456,7 +451,6 @@ class UniqueForMonthTests(TestCase):
             'published': datetime.date(2017, 2, 1)
         }
 
-
 # Tests for `UniqueForYearValidator`
 # ----------------------------------
 
@@ -473,6 +467,7 @@ class UniqueForYearSerializer(serializers.ModelSerializer):
 
 
 class UniqueForYearTests(TestCase):
+
     def setUp(self):
         self.instance = UniqueForYearModel.objects.create(
             slug='existing', published='2017-01-01'
@@ -538,25 +533,23 @@ class TestHiddenFieldUniquenessForDateValidation(TestCase):
 
 
 class ValidatorsTests(TestCase):
+
     def test_qs_exists_handles_type_error(self):
         class TypeErrorQueryset(object):
             def exists(self):
                 raise TypeError
-
         assert qs_exists(TypeErrorQueryset()) is False
 
     def test_qs_exists_handles_value_error(self):
         class ValueErrorQueryset(object):
             def exists(self):
                 raise ValueError
-
         assert qs_exists(ValueErrorQueryset()) is False
 
     def test_qs_exists_handles_data_error(self):
         class DataErrorQueryset(object):
             def exists(self):
                 raise DataError
-
         assert qs_exists(DataErrorQueryset()) is False
 
     def test_validator_raises_error_if_not_all_fields_are_provided(self):