human handoffs

backend/tests/test_reply_recipients.py

@@ -0,0 +1,30 @@
+from app.services.reply_recipients import reply_recipients
+
+
+def test_reply_prefers_reply_to_header():
+    message = {
+        "sender": {"name": "Sender", "address": "sender@example.com"},
+        "reply_to": [{"name": "Support", "address": "support@example.com"}],
+        "to": [{"name": "Me", "address": "me@gentic.email"}],
+        "cc": [],
+    }
+    to, cc = reply_recipients(message=message, viewer_email="me@gentic.email", reply_all=False)
+    assert to == ["support@example.com"]
+    assert cc == []
+
+
+def test_reply_all_excludes_viewer_and_deduplicates():
+    message = {
+        "sender": {"name": "Sender", "address": "sender@example.com"},
+        "to": [
+            {"name": "Me", "address": "me@gentic.email"},
+            {"name": "Other", "address": "other@example.com"},
+        ],
+        "cc": [
+            {"name": "Sender", "address": "sender@example.com"},
+            {"name": "Third", "address": "third@example.com"},
+        ],
+    }
+    to, cc = reply_recipients(message=message, viewer_email="me@gentic.email", reply_all=True)
+    assert to == ["sender@example.com"]
+    assert set(cc) == {"other@example.com", "third@example.com"}