Test structural filter on ListElement endpoints

arkindex/documents/tests/test_elements_api.py

@@ -1086,3 +1086,23 @@ class TestElementsAPI(FixtureAPITestCase):
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         results = response.json()['results']
         self.assertEqual(len(results), 0)
+
+    def test_list_elements_structural_metadata_filter(self):
+        self.client.force_login(self.user)
+        self.page.metadatas.create(type=MetaType.Structural, name='id', value='ref__1337')
+        act = self.corpus.elements.get(name='Act 1')
+        act.add_parent(self.page)
+        act.add_parent(self.vol)
+        requests = (
+            reverse('api:elements'),
+            reverse('api:elements-children', kwargs={'pk': str(self.vol.id)}),
+            reverse('api:elements-parents', kwargs={'pk': str(act.id)})
+        )
+        for request in requests:
+            response = self.client.get(request, data={'structural_metadata': '1338'})
+            self.assertEqual(response.json()['count'], 0)
+        for request in requests:
+            response = self.client.get(request, data={'structural_metadata': '1337'})
+            data = response.json()
+            self.assertEqual(data['count'], 1)
+            self.assertEqual(data['results'][0]['id'], str(self.page.id))