Fix default repo re-creation bug when web login after desktop

tests/api/test_default_repo.py

@@ -0,0 +1,31 @@
+import json
+
+from django.core.urlresolvers import reverse
+
+from seahub.options.models import UserOptions
+from seahub.test_utils import BaseTestCase
+
+class DefaultRepoTest(BaseTestCase):
+    def setUp(self):
+        self.login_as(self.user)
+        self.endpoint = reverse('api2-defaultrepo')
+
+    def test_default_repo_missing_on_get(self):
+        resp = self.client.get(self.endpoint)
+        json_resp = json.loads(resp.content)
+        assert json_resp['exists'] is False
+
+    def test_create_default_repo_on_post(self):
+        username = self.user.username
+        assert UserOptions.objects.get_default_repo(username) is None
+        assert UserOptions.objects.is_user_guide_enabled(username) is True
+
+        resp = self.client.post(self.endpoint)
+        json_resp = json.loads(resp.content)
+        assert json_resp['exists'] is True
+        assert len(json_resp['repo_id']) == 36
+
+        assert UserOptions.objects.get_default_repo(username) is not None
+
+        # so that, default repo won't be created again during web login
+        assert UserOptions.objects.is_user_guide_enabled(username) is False