Fix form attr references in tests (#789)

django_filters/rest_framework/backends.py

@@ -97,9 +97,8 @@ def get_schema_fields(self, view):
         return [] if not filter_class else [
             compat.coreapi.Field(
                 name=field_name,
-                required=field.required,
+                required=field.extra['required'],
                 location='query',
                 schema=self.get_coreschema_field(field)
-                )
-            for field_name, field in filter_class.base_filters.items()
+            ) for field_name, field in filter_class.base_filters.items()
         ]

tests/rest_framework/test_filters.py

@@ -12,4 +12,4 @@ def test_widget(self):
         # from `rest_framework.filters`.
         f = filters.BooleanFilter()
 
-        self.assertEqual(f.widget, BooleanWidget)
+        self.assertEqual(f.extra['widget'], BooleanWidget)

tests/rest_framework/test_filterset.py

@@ -29,7 +29,7 @@ def test_booleanfilter_widget(self):
         field = User._meta.get_field('is_active')
         result = FilterSet.filter_for_field(field, 'is_active')
         self.assertIsInstance(result, filters.BooleanFilter)
-        self.assertEqual(result.widget, BooleanWidget)
+        self.assertEqual(result.extra['widget'], BooleanWidget)
 
 
 @skipIf(is_crispy(), 'django_crispy_forms must be installed')

tests/test_filtering.py

@@ -651,7 +651,7 @@ def __init__(self, *args, **kwargs):
                     'queryset': Book.objects.filter(id__in=[1, 2])
                 })
 
-                self.filters['favorite_books'].required = True
+                self.filters['favorite_books'].extra['required'] = True
 
         qs = User.objects.all().order_by('username')