From 0822c9e55820f8e4737329e38abc2e21718af9e5 Mon Sep 17 00:00:00 2001
From: Tom Christie
Date: Thu, 22 Jan 2015 16:12:05 +0000
Subject: Cursor pagination now works with OrderingFilter

---
 tests/test_pagination.py | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

(limited to 'tests/test_pagination.py')

diff --git a/tests/test_pagination.py b/tests/test_pagination.py
index c05b4aba..338be610 100644
--- a/tests/test_pagination.py
+++ b/tests/test_pagination.py
@@ -77,6 +77,20 @@ class TestPaginationIntegration:
             'count': 50
         }
 
+    def test_setting_page_size_to_zero(self):
+        """
+        When page_size parameter is invalid it should return to the default.
+        """
+        request = factory.get('/', {'page_size': 0})
+        response = self.view(request)
+        assert response.status_code == status.HTTP_200_OK
+        assert response.data == {
+            'results': [2, 4, 6, 8, 10],
+            'previous': None,
+            'next': 'http://testserver/?page=2&page_size=0',
+            'count': 50
+        }
+
     def test_additional_query_params_are_preserved(self):
         request = factory.get('/', {'page': 2, 'filter': 'even'})
         response = self.view(request)
@@ -88,6 +102,14 @@ class TestPaginationIntegration:
             'count': 50
         }
 
+    def test_404_not_found_for_zero_page(self):
+        request = factory.get('/', {'page': '0'})
+        response = self.view(request)
+        assert response.status_code == status.HTTP_404_NOT_FOUND
+        assert response.data == {
+            'detail': 'Invalid page "0": That page number is less than 1.'
+        }
+
     def test_404_not_found_for_invalid_page(self):
         request = factory.get('/', {'page': 'invalid'})
         response = self.view(request)
@@ -507,6 +529,24 @@ class TestCursorPagination:
         with pytest.raises(exceptions.NotFound):
             self.pagination.paginate_queryset(self.queryset, request)
 
+    def test_use_with_ordering_filter(self):
+        class MockView:
+            filter_backends = (filters.OrderingFilter,)
+            ordering_fields = ['username', 'created']
+            ordering = 'created'
+
+        request = Request(factory.get('/', {'ordering': 'username'}))
+        ordering = self.pagination.get_ordering(request, [], MockView())
+        assert ordering == ('username',)
+
+        request = Request(factory.get('/', {'ordering': '-username'}))
+        ordering = self.pagination.get_ordering(request, [], MockView())
+        assert ordering == ('-username',)
+
+        request = Request(factory.get('/', {'ordering': 'invalid'}))
+        ordering = self.pagination.get_ordering(request, [], MockView())
+        assert ordering == ('created',)
+
     def test_cursor_pagination(self):
         (previous, current, next, previous_url, next_url) = self.get_pages('/')
 
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