Sibling files (test_billing_rpc etc.) import tui_gateway.server at
collection time, freezing module-level _hermes_home = get_hermes_home()
(server.py:54) to the developer's real home before conftest isolation
runs. _load_cfg() then reads the REAL ~/.hermes/config.yaml — e.g. a
local MoA preset — instead of what _write_moa_config wrote.
The server fixture now monkeypatches _hermes_home to the isolated
HERMES_HOME and resets the mtime-keyed cfg cache (_cfg_cache/_cfg_mtime/
_cfg_path); monkeypatch restores originals on teardown.
Complementary to the #57066 autouse teardown, which only restores the
cfg cache to its pre-test value and never re-points _hermes_home.
Combined tests/tui_gateway + tests/test_tui_gateway_server.py:
792 passed.
Salvaged from PR #63981 by @lEWFkRAD.
Jeff Watts
0860b9804f