Format mastodon output

backend/tests/test_api.py

@@ -6,7 +6,7 @@ import threading
 from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
 from urllib.parse import parse_qs
 from uuid import uuid4
-from unittest.mock import patch
+from unittest.mock import MagicMock, patch
 
 from fastapi.testclient import TestClient
 
@@ -445,13 +445,34 @@ def test_link_submission_posts_to_enabled_mastodon_plugin():
         assert received['path'] == '/api/v1/statuses'
         assert received['authorization'] == 'Bearer test-token'
         assert received['content_type'] == 'application/x-www-form-urlencoded'
-        assert received['body'] == {'status': ['A useful page\nWorth sharing\nFrom my #LinkLog: https://example.com/useful #python #web']}
+        assert received['body'] == {'status': ['From my #LinkLog: A useful page\n\nWorth sharing\n\nfrom: https://example.com/useful\n\n#python #web']}
     finally:
         server.shutdown()
         thread.join()
         server.server_close()
 
 
+def test_mastodon_post_without_title_omits_source_line():
+    from backend.app.services.plugin_manager import MastodonPlugin
+
+    response = MagicMock()
+    response.__enter__.return_value.read.return_value = b'{"id":"status-2"}'
+    plugin = MastodonPlugin()
+    plugin.initialize({'instance': 'https://mastodon.example', 'access_token': 'test-token'})
+
+    with patch('backend.app.services.plugin_manager.urlopen', return_value=response) as open_url:
+        result = plugin.handle_event({
+            'url': 'https://example.com/useful',
+            'title': '',
+            'comment': 'A comment',
+            'tags': ['#tag'],
+        })
+
+    body = parse_qs(open_url.call_args.args[0].data.decode())['status'][0]
+    assert result['status'] == 'posted'
+    assert body == 'From my #LinkLog:\n\nA comment\n\n#tag'
+
+
 def test_plugin_config_can_be_saved_for_mastodon():
     headers = login_headers()
     assert client.put('/api/user/plugins/mastodon', headers=headers, json={