handoff fixes

backend/tests/test_reply_extractor.py

@@ -0,0 +1,63 @@
+from app.services.handoff_email_templates import external_reply_subject, handoff_email_subject
+from app.services.reply_extractor import extract_new_reply_content, validate_external_reply_body
+
+SCREENSHOT_REPLY = """ahan, did you receive a response?
+
+On Tue, Oct 6, 2026 at 2:11 AM <suyash@gentic.email> wrote:
+
+> Human Handoff
+>
+> A conversation needs your attention.
+>
+> From
+> 091rabbytes@gmail.com
+>
+> Subject
+> are you ready?
+>
+> Latest message
+> "lets start a threaddddd"
+>
+> Why this was handed off
+> No handoff instructions were set, so this step passes.
+>
+> Reply to this email to respond to the original sender through suyash@gentic.email.
+>
+> Your reply will be sent to the customer.
+>
+> Gentic Human Handoff"""
+
+
+def test_extracts_new_reply_from_gmail_quote():
+    result = extract_new_reply_content(body_text=SCREENSHOT_REPLY)
+    assert result["new_reply_content"] == "ahan, did you receive a response?"
+    assert "Human Handoff" in result["quoted_content"]
+    assert "091rabbytes@gmail.com" in result["quoted_content"]
+
+
+def test_extracted_reply_passes_leakage_guard():
+    result = extract_new_reply_content(body_text=SCREENSHOT_REPLY)
+    assert validate_external_reply_body(result["new_reply_content"]) is True
+
+
+def test_leakage_guard_blocks_private_template():
+    assert validate_external_reply_body(SCREENSHOT_REPLY) is False
+
+
+def test_external_reply_subject_uses_customer_subject():
+    assert external_reply_subject("are you ready?") == "Re: are you ready?"
+    assert external_reply_subject("Human Handoff · are you ready?") == "Re: are you ready?"
+
+
+def test_handoff_subject_format():
+    assert handoff_email_subject("are you ready?") == "Human Handoff · are you ready?"
+
+
+def test_outlook_original_message_split():
+    body = """Thanks for the update.
+
+-----Original Message-----
+From: support@gentic.email
+Subject: Human Handoff"""
+    result = extract_new_reply_content(body_text=body)
+    assert result["new_reply_content"] == "Thanks for the update."