Update check for pagination settings, update test

Author: TheSuperiorStanislav

rest_framework/checks.py

@@ -6,14 +6,16 @@ def pagination_system_check(app_configs, **kwargs):
     errors = []
     # Use of default page size setting requires a default Paginator class
     from rest_framework.settings import api_settings
-    if api_settings.PAGE_SIZE and not api_settings.DEFAULT_PAGINATION_CLASS:
+    if (
+        api_settings.PAGE_SIZE or api_settings.MAX_PAGE_SIZE
+    ) and not api_settings.DEFAULT_PAGINATION_CLASS:
         errors.append(
             Warning(
-                "You have specified a default PAGE_SIZE pagination rest_framework setting, "
+                "You have specified a default PAGE_SIZE pagination or MAX_PAGE_SIZE limit rest_framework setting, "
                 "without specifying also a DEFAULT_PAGINATION_CLASS.",
                 hint="The default for DEFAULT_PAGINATION_CLASS is None. "
                      "In previous versions this was PageNumberPagination. "
-                     "If you wish to define PAGE_SIZE globally whilst defining "
+                     "If you wish to define PAGE_SIZE or MAX_PAGE_SIZE globally whilst defining "
                      "pagination_class on a per-view basis you may silence this check.",
                 id="rest_framework.W001"
             )

tests/test_settings.py

@@ -54,6 +54,7 @@ def get_pagination_error(error_id: str):
             return next((error for error in errors if error.id == error_id), None)
 
         self.assertIsNone(api_settings.PAGE_SIZE)
+        self.assertIsNone(api_settings.MAX_PAGE_SIZE)
         self.assertIsNone(api_settings.DEFAULT_PAGINATION_CLASS)
 
         pagination_error = get_pagination_error('rest_framework.W001')
@@ -63,11 +64,19 @@ def get_pagination_error(error_id: str):
             pagination_error = get_pagination_error('rest_framework.W001')
             self.assertIsNotNone(pagination_error)
 
+        with override_settings(REST_FRAMEWORK={'MAX_PAGE_SIZE': 10}):
+            pagination_error = get_pagination_error('rest_framework.W001')
+            self.assertIsNotNone(pagination_error)
+
         default_pagination_class = 'rest_framework.pagination.PageNumberPagination'
         with override_settings(REST_FRAMEWORK={'PAGE_SIZE': 10, 'DEFAULT_PAGINATION_CLASS': default_pagination_class}):
             pagination_error = get_pagination_error('rest_framework.W001')
             self.assertIsNone(pagination_error)
 
+        with override_settings(REST_FRAMEWORK={'MAX_PAGE_SIZE': 10, 'DEFAULT_PAGINATION_CLASS': default_pagination_class}):
+            pagination_error = get_pagination_error('rest_framework.W001')
+            self.assertIsNone(pagination_error)
+
 
 class TestSettingTypes(TestCase):
     def test_settings_consistently_coerced_to_list(self):