add api for getting groups that user can share repo to

tests/api/endpoints/test_shareable_groups.py

@@ -0,0 +1,59 @@
+# Copyright (c) 2011-2016 Seafile Ltd.
+# -*- coding: utf-8 -*-
+import json
+from django.core.urlresolvers import reverse
+from seahub.test_utils import BaseTestCase
+from tests.common.utils import randstring
+from constance import config
+
+
+class ShareableGroupsTest(BaseTestCase):
+
+    def setUp(self):
+        self.login_as(self.user)
+        self.group_id = self.group.id
+        self.group_name = self.group.group_name
+        self.admin_user = self.admin.username
+
+        self.url = reverse('api-v2.1-shareable-groups')
+
+    def tearDown(self):
+        self.remove_group()
+        self.remove_repo()
+
+    def test_can_get(self):
+
+        config.ENABLE_SHARE_TO_ALL_GROUPS = 1
+
+        admin_group_name = randstring(10)
+        admin_group = self.create_group(group_name=admin_group_name,
+                username=self.admin_user)
+
+        resp = self.client.get(self.url)
+        self.assertEqual(200, resp.status_code)
+        json_resp = json.loads(resp.content)
+        group_names = [g["name"] for g in json_resp]
+        self.assertIn(admin_group_name, group_names)
+        self.assertIn(self.group.group_name, group_names)
+
+
+        self.remove_group(admin_group.group_id)
+        self.clear_cache()
+
+    def test_can_get_with_disable_config(self):
+
+        config.ENABLE_SHARE_TO_ALL_GROUPS = 0
+
+        admin_group_name = randstring(10)
+        admin_group = self.create_group(group_name=admin_group_name,
+                username=self.admin_user)
+
+        resp = self.client.get(self.url)
+        self.assertEqual(200, resp.status_code)
+        json_resp = json.loads(resp.content)
+        group_names = [g["name"] for g in json_resp]
+        self.assertIn(self.group.group_name, group_names)
+        self.assertNotIn(admin_group_name, group_names)
+
+        self.remove_group(admin_group.group_id)
+        self.clear_cache()