diff --git a/tests/app/__init__.py b/tests/app/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/tests/app/__init__.py
diff --git a/tests/app/test_frontend_proxy.py b/tests/app/test_frontend_proxy.py
new file mode 100644
index 0000000000..76b5090fff
--- /dev/null
+++ b/tests/app/test_frontend_proxy.py
@@ -0,0 +1,88 @@
+# -*- coding: utf-8 -*-
+# Copyright 2018 New Vector Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from synapse.app.frontend_proxy import FrontendProxyServer
+
+from tests.unittest import HomeserverTestCase
+
+
+class FrontendProxyTests(HomeserverTestCase):
+ def make_homeserver(self, reactor, clock):
+
+ hs = self.setup_test_homeserver(
+ http_client=None, homeserverToUse=FrontendProxyServer
+ )
+
+ return hs
+
+ def test_listen_http_with_presence_enabled(self):
+ """
+ When presence is on, the stub servlet will not register.
+ """
+ # Presence is on
+ self.hs.config.use_presence = True
+
+ config = {
+ "port": 8080,
+ "bind_addresses": ["0.0.0.0"],
+ "resources": [{"names": ["client"]}],
+ }
+
+ # Listen with the config
+ self.hs._listen_http(config)
+
+ # Grab the resource from the site that was told to listen
+ self.assertEqual(len(self.reactor.tcpServers), 1)
+ site = self.reactor.tcpServers[0][1]
+ self.resource = (
+ site.resource.children["_matrix"].children["client"].children["r0"]
+ )
+
+ request, channel = self.make_request("PUT", "presence/a/status")
+ self.render(request)
+
+ # 400 + unrecognised, because nothing is registered
+ self.assertEqual(channel.code, 400)
+ self.assertEqual(channel.json_body["errcode"], "M_UNRECOGNIZED")
+
+ def test_listen_http_with_presence_disabled(self):
+ """
+ When presence is on, the stub servlet will register.
+ """
+ # Presence is off
+ self.hs.config.use_presence = False
+
+ config = {
+ "port": 8080,
+ "bind_addresses": ["0.0.0.0"],
+ "resources": [{"names": ["client"]}],
+ }
+
+ # Listen with the config
+ self.hs._listen_http(config)
+
+ # Grab the resource from the site that was told to listen
+ self.assertEqual(len(self.reactor.tcpServers), 1)
+ site = self.reactor.tcpServers[0][1]
+ self.resource = (
+ site.resource.children["_matrix"].children["client"].children["r0"]
+ )
+
+ request, channel = self.make_request("PUT", "presence/a/status")
+ self.render(request)
+
+ # 401, because the stub servlet still checks authentication
+ self.assertEqual(channel.code, 401)
+ self.assertEqual(channel.json_body["errcode"], "M_MISSING_TOKEN")
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