hermes-agent/tests/hermes_cli/test_web_server_pty_reconnect.py
2026-06-26 01:06:02 -07:00

130 lines
4 KiB
Python

"""Focused tests for dashboard PTY reconnect breadcrumbs."""
import json
import sys
from pathlib import Path
from urllib.parse import urlencode
import pytest
pytestmark = pytest.mark.skipif(
sys.platform.startswith("win"), reason="PTY bridge is POSIX-only"
)
class _OneFrameBridge:
def __init__(self):
self._sent = False
@classmethod
def spawn(cls, *args, **kwargs):
return cls()
def read(self, timeout):
if not self._sent:
self._sent = True
return b"ready"
return None
def resize(self, *, cols, rows):
pass
def write(self, raw):
pass
def close(self):
pass
@pytest.fixture
def pty_client(monkeypatch, _isolate_hermes_home):
from starlette.testclient import TestClient
import hermes_cli.web_server as ws
monkeypatch.setattr(ws, "_DASHBOARD_EMBEDDED_CHAT_ENABLED", True)
monkeypatch.setattr(ws.PtyBridge, "spawn", _OneFrameBridge.spawn)
ws.app.state.pty_active_session_files = {}
client = TestClient(ws.app)
return ws, client, ws._SESSION_TOKEN
def _url(token: str, **params: str) -> str:
return f"/api/pty?{urlencode({'token': token, **params})}"
def test_resolve_chat_argv_sets_active_session_file_env(monkeypatch):
"""Dashboard chat gives the TUI a breadcrumb file for reconnect resume."""
import hermes_cli.main as main_mod
import hermes_cli.web_server as ws
monkeypatch.setattr(
main_mod,
"_make_tui_argv",
lambda project_root, tui_dev=False: (["node", "dist/entry.js"], "/tmp/ui-tui"),
)
_argv, _cwd, env = ws._resolve_chat_argv(
active_session_file="/tmp/hermes-active-session.json"
)
assert env["HERMES_TUI_ACTIVE_SESSION_FILE"] == "/tmp/hermes-active-session.json"
def test_channel_reconnect_resumes_active_session_file(pty_client, monkeypatch):
"""A new /api/pty socket on the same channel resumes the last TUI sid."""
ws, client, token = pty_client
captured = []
def fake_resolve(resume=None, sidecar_url=None, profile=None, active_session_file=None):
captured.append(
{
"active_session_file": active_session_file,
"resume": resume,
"sidecar_url": sidecar_url,
}
)
if active_session_file and not resume:
Path(active_session_file).write_text(
json.dumps({"session_id": "sess-live"}),
encoding="utf-8",
)
return (["fake-hermes-tui"], None, None)
monkeypatch.setattr(ws, "_resolve_chat_argv", fake_resolve)
with client.websocket_connect(_url(token, channel="reconnect-chan")) as conn:
assert conn.receive_bytes() == b"ready"
with client.websocket_connect(_url(token, channel="reconnect-chan")) as conn:
assert conn.receive_bytes() == b"ready"
assert captured[0]["resume"] is None
assert captured[0]["active_session_file"]
assert captured[1]["resume"] == "sess-live"
assert captured[1]["active_session_file"] == captured[0]["active_session_file"]
def test_fresh_param_ignores_channel_active_session_file(pty_client, monkeypatch):
"""Explicit fresh starts must not resurrect the prior channel session."""
ws, client, token = pty_client
channel = "fresh-chan"
active_file = ws._active_session_file_for_channel(ws.app, channel)
active_file.write_text(json.dumps({"session_id": "sess-old"}), encoding="utf-8")
captured = {}
def fake_resolve(resume=None, sidecar_url=None, profile=None, active_session_file=None):
captured["active_session_file"] = active_session_file
captured["resume"] = resume
return (["fake-hermes-tui"], None, None)
monkeypatch.setattr(ws, "_resolve_chat_argv", fake_resolve)
with client.websocket_connect(_url(token, channel=channel, fresh="1")) as conn:
assert conn.receive_bytes() == b"ready"
assert captured["resume"] is None
assert captured["active_session_file"] == str(active_file)
assert not active_file.exists()