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Python

"""display.bell_on_prompt / bell_on_complete also drive OSC 9 + Warp OSC 777 via _ring_bell."""
import json
from cli import HermesCLI
from hermes_cli import terminal_notify
_WARP_OK = {
"TERM_PROGRAM": "WarpTerminal",
"WARP_CLI_AGENT_PROTOCOL_VERSION": "1",
"WARP_CLIENT_VERSION": "v0.2026.08.01.00.00.stable_01",
}
def _ring(monkeypatch, *, flag_on, env, **kwargs):
for key in _WARP_OK:
monkeypatch.delenv(key, raising=False)
for key, value in env.items():
monkeypatch.setenv(key, value)
written = []
monkeypatch.setattr(terminal_notify, "_write_tty", written.append)
cli = HermesCLI.__new__(HermesCLI)
cli.bell_on_prompt = flag_on
cli.session_id = "sess-1"
cli._ring_bell(prompt=True, **kwargs)
return "".join(written)
def test_osc9_body_emitted_and_sanitized_only_when_flag_on(monkeypatch):
out = _ring(monkeypatch, flag_on=True, env={}, context="approval\x1b\x07\x00\x7f!")
assert out == "\x1b]9;Hermes: approval!\x07"
assert _ring(monkeypatch, flag_on=False, env={}, context="approval") == ""
def test_warp_osc777_only_under_supported_warp_build(monkeypatch):
out = _ring(monkeypatch, flag_on=True, env=_WARP_OK, context="approval", detail="rm -rf build")
prefix = "\x1b]777;notify;warp://cli-agent;"
assert out.count(prefix) == 1
payload = json.loads(out.split(prefix, 1)[1].rstrip("\x07"))
assert payload["agent"] == "hermes"
assert payload["event"] == "permission_request"
assert payload["summary"] == "rm -rf build"
assert payload["session_id"] == "sess-1"
assert payload["v"] == 1
# Broken build (advertises the protocol var but can't render) → OSC 9 only.
broken = dict(_WARP_OK, WARP_CLIENT_VERSION="v0.2026.03.25.08.24.stable_05")
assert prefix not in _ring(monkeypatch, flag_on=True, env=broken, context="approval")
# Not Warp at all → OSC 9 only.
not_warp = dict(_WARP_OK, TERM_PROGRAM="ghostty")
assert prefix not in _ring(monkeypatch, flag_on=True, env=not_warp, context="approval")