fix openapi issues

backend/toolshed/tests/test_docs.py

@@ -0,0 +1,21 @@
+from django.test import Client
+from authentication.tests import UserTestMixin, SignatureAuthClient, ToolshedTestCase
+from backend import settings
+from toolshed.tests import CategoryTestMixin, TagTestMixin, PropertyTestMixin
+
+anonymous_client = Client()
+client = SignatureAuthClient()
+
+
+class OpenapiTestCase(UserTestMixin, CategoryTestMixin, TagTestMixin, PropertyTestMixin, ToolshedTestCase):
+
+    def setUp(self):
+        super().setUp()
+        self.prepare_users()
+
+    def test_docs_anonymous(self):
+        response = anonymous_client.get('/docs/?format=openapi')
+        self.assertEqual(response.status_code, 200)
+        self.assertTrue('swagger' in response.json())
+        self.assertTrue('info' in response.json())
+