[api] Add guest invite feature

tests/api/endpoints/test_invitations.py

@@ -0,0 +1,63 @@
+import json
+from mock import patch
+
+from post_office.models import Email
+from django.core.urlresolvers import reverse
+
+from seahub.base.accounts import UserPermissions
+from seahub.invitations.models import Invitation
+from seahub.test_utils import BaseTestCase
+
+class InvitationsTest(BaseTestCase):
+    def setUp(self):
+        self.login_as(self.user)
+        self.endpoint = '/api/v2.1/invitations/'
+        self.username = self.user.username
+
+    @patch.object(UserPermissions, 'can_invite_guest')
+    def test_can_add(self, mock_can_invite_guest):
+        mock_can_invite_guest.return_val = True
+
+        assert len(Invitation.objects.all()) == 0
+        resp = self.client.post(self.endpoint, {
+            'type': 'guest',
+            'accepter': 'some_random_user@1.com',
+        })
+        self.assertEqual(201, resp.status_code)
+
+        json_resp = json.loads(resp.content)
+        assert json_resp['accepter_exists'] is False
+        assert json_resp['invitation']['inviter'] == self.username
+        assert json_resp['invitation']['accepter'] == 'some_random_user@1.com'
+        assert json_resp['invitation']['expire_time'] is not None
+
+        assert len(Invitation.objects.all()) == 1
+
+    @patch.object(UserPermissions, 'can_invite_guest')
+    def test_can_send_mail(self, mock_can_invite_guest):
+        mock_can_invite_guest.return_val = True
+
+        self.assertEqual(len(Email.objects.all()), 0)
+
+        resp = self.client.post(self.endpoint, {
+            'type': 'guest',
+            'accepter': 'some_random_user@1.com',
+        })
+        self.assertEqual(201, resp.status_code)
+        json_resp = json.loads(resp.content)
+
+        self.assertEqual(len(Email.objects.all()), 1)
+        self.assertRegexpMatches(Email.objects.all()[0].html_message,
+                                 json_resp['invitation']['token'])
+
+    @patch.object(UserPermissions, 'can_invite_guest')
+    def test_can_list(self, mock_can_invite_guest):
+        mock_can_invite_guest.return_val = True
+
+        Invitation.objects.add(inviter=self.username, accepter='1@1.com')
+        Invitation.objects.add(inviter=self.username, accepter='1@2.com')
+
+        resp = self.client.get(self.endpoint)
+        self.assertEqual(200, resp.status_code)
+        json_resp = json.loads(resp.content)
+        assert len(json_resp['invitations']) == 2