assert out == {"ok": True, "status": "sent", "message_id": "MSG-FAKE-123",
        # MIME captured by the fake transport — assert real headers/content
        assert len(ok_client.sent) == 1
        assert mime["From"] == acc_email            # never spoofed
        assert mime["To"] == cr_email
>       assert mime["Subject"] == subj_text
E       AssertionError: assert 'Payment remi...INV-TEST-0001' == 'Payment remi...nvoiceNumber%'
tests/test_send_one_task.py:390: AssertionError
FAILED tests/test_send_one_task.py::TestSuccessPath::test_sent_end_to_end_with_mime_and_headers