Files
hermes-agent/tests/hermes_cli/test_model_switch_persist_default.py
kshitijk4poor 71fe5fccad refactor(model_switch): remove parse_model_flags, which only tests called
Every /model surface parses through parse_model_switch_args. The legacy
5-tuple wrapper had no production caller; its remaining references were two
tests of the tuple shape, an unused import, and two tui_gateway patch()
calls on a function tui_gateway no longer calls.

The en-dash --session normalization those tests covered moves into the
parse_model_switch_args keeper. test_model_switch_once_flags and
test_model_switch_context_offload are removed: the first re-tests the
private parser the keeper already drives, the second the one-line to_thread
wrapper that tests/gateway/test_model_command_context_offload.py proves off
the event loop through the real /model handler.
2026-09-29 15:58:55 +05:30

75 lines
3.1 KiB
Python

"""Tests for session-scoped-by-default model switching.
Covers:
- ``resolve_persist_behavior`` applies the config-gated default and the
``--session`` / ``--global`` overrides.
- The default (no flags) is session-only, which is the user-facing fix: a
plain ``/model <name>`` affects only the current session unless the user
passes ``--global`` or sets ``model.persist_switch_by_default: true``.
"""
from unittest.mock import patch
from hermes_cli.model_switch import resolve_persist_behavior
# ---------------------------------------------------------------------------
# resolve_persist_behavior
# ---------------------------------------------------------------------------
class TestResolvePersistBehavior:
def test_session_flag_always_session_only(self):
# --session opts out even if the config default is True.
with _config({"model": {"persist_switch_by_default": True}}):
assert resolve_persist_behavior(False, True) is False
def test_no_provider_uses_config_default(self):
# No --provider → respects config default (True).
with _config({"model": {"persist_switch_by_default": True}}):
assert resolve_persist_behavior(False, False, explicit_provider="") is True
def test_first_pick_persists_then_session_only(self):
# #90235 / #86414: the ONE policy every surface (CLI, gateway, Desktop
# picker) defers to. With no default ever configured, the first pick
# persists (even with --provider, which is how the Desktop picker
# always sends it) so resolve_provider never falls through to a stray
# env key on restart. Once a default exists, a plain pick is
# session-only unless --global / persist_switch_by_default.
with _config({"model": {}}):
assert resolve_persist_behavior(False, False, explicit_provider="anthropic") is True
with _config({"model": ""}):
assert resolve_persist_behavior(False, False) is True
with _config({"model": {"default": "gpt-5.6", "provider": "openai-codex"}}):
assert resolve_persist_behavior(False, False, explicit_provider="openai-api") is False
assert resolve_persist_behavior(False, False) is False
assert resolve_persist_behavior(True, False, explicit_provider="openai-api") is True
with _config({"model": "gpt-5.6"}):
assert resolve_persist_behavior(False, False) is False
# ---------------------------------------------------------------------------
# helper
# ---------------------------------------------------------------------------
class _config:
"""Context manager that patches ``load_config`` to return a fixed dict."""
def __init__(self, cfg: dict):
self.cfg = cfg
def __enter__(self):
self._patch = patch(
"hermes_cli.config.load_config",
return_value=self.cfg,
)
# resolve_persist_behavior imports load_config lazily inside the
# function, so patching the source module is sufficient.
self._patch.start()
return self
def __exit__(self, *exc):
self._patch.stop()