update get unseen notifications count

tests/api/endpoints/test_notifications.py

@@ -0,0 +1,24 @@
+import json
+from seahub.test_utils import BaseTestCase
+from seahub.notifications.models import UserNotification
+
+class InvitationsTest(BaseTestCase):
+    def setUp(self):
+        self.endpoint = '/api/v2.1/notifications/'
+        self.username = self.user.username
+
+    def test_can_get_unseen_count(self):
+
+        self.login_as(self.user)
+
+        UserNotification.objects.add_file_uploaded_msg(self.username, 'test')
+        resp = self.client.get(self.endpoint)
+        self.assertEqual(200, resp.status_code)
+
+        json_resp = json.loads(resp.content)
+        assert json_resp['unseen_count'] == 1
+
+    def test_get_with_invalid_user_permission(self):
+
+        resp = self.client.get(self.endpoint)
+        self.assertEqual(403, resp.status_code)