diff --git a/tests/rest/admin/test_server_notice.py b/tests/rest/admin/test_server_notice.py
index 81e125e27d..a2f347f666 100644
--- a/tests/rest/admin/test_server_notice.py
+++ b/tests/rest/admin/test_server_notice.py
@@ -159,6 +159,62 @@ class ServerNoticeTestCase(unittest.HomeserverTestCase):
self.assertEqual(Codes.UNKNOWN, channel.json_body["errcode"])
self.assertEqual("'msgtype' not in content", channel.json_body["error"])
+ @override_config(
+ {
+ "server_notices": {
+ "system_mxid_localpart": "notices",
+ "system_mxid_avatar_url": "somthingwrong",
+ },
+ "max_avatar_size": "10M",
+ }
+ )
+ def test_invalid_avatar_url(self) -> None:
+ """If avatar url in homeserver.yaml is invalid and
+ "check avatar size and mime type" is set, an error is returned.
+ TODO: Should be checked when reading the configuration."""
+ channel = self.make_request(
+ "POST",
+ self.url,
+ access_token=self.admin_user_tok,
+ content={
+ "user_id": self.other_user,
+ "content": {"msgtype": "m.text", "body": "test msg"},
+ },
+ )
+
+ self.assertEqual(500, channel.code, msg=channel.json_body)
+ self.assertEqual(Codes.UNKNOWN, channel.json_body["errcode"])
+
+ @override_config(
+ {
+ "server_notices": {
+ "system_mxid_localpart": "notices",
+ "system_mxid_display_name": "test display name",
+ "system_mxid_avatar_url": None,
+ },
+ "max_avatar_size": "10M",
+ }
+ )
+ def test_displayname_is_set_avatar_is_none(self) -> None:
+ """
+ Tests that sending a server notices is successfully,
+ if a display_name is set, avatar_url is `None` and
+ "check avatar size and mime type" is set.
+ """
+ channel = self.make_request(
+ "POST",
+ self.url,
+ access_token=self.admin_user_tok,
+ content={
+ "user_id": self.other_user,
+ "content": {"msgtype": "m.text", "body": "test msg"},
+ },
+ )
+ self.assertEqual(200, channel.code, msg=channel.json_body)
+
+ # user has one invite
+ self._check_invite_and_join_status(self.other_user, 1, 0)
+
def test_server_notice_disabled(self) -> None:
"""Tests that server returns error if server notice is disabled"""
channel = self.make_request(
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