97 lines
3.8 KiB
Python
97 lines
3.8 KiB
Python
"""Tests for session-scoped-by-default model switching.
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Covers:
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- ``parse_model_flags`` recognises ``--session`` (and keeps ``--global``).
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- ``resolve_persist_behavior`` applies the config-gated default and the
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``--session`` / ``--global`` overrides.
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- The default (no flags) is session-only, which is the user-facing fix: a
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plain ``/model <name>`` affects only the current session unless the user
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passes ``--global`` or sets ``model.persist_switch_by_default: true``.
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"""
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from unittest.mock import patch
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from hermes_cli.model_switch import parse_model_flags, resolve_persist_behavior
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# ---------------------------------------------------------------------------
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# parse_model_flags
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# ---------------------------------------------------------------------------
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class TestParseModelFlagsSession:
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def test_no_flags(self):
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assert parse_model_flags("sonnet") == ("sonnet", "", False, False, False)
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def test_unicode_dash_session_normalized(self):
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# Telegram/iOS auto-converts -- to en/em dashes.
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assert parse_model_flags("sonnet \u2013session") == (
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"sonnet",
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"",
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False,
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False,
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True,
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)
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# ---------------------------------------------------------------------------
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# resolve_persist_behavior
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# ---------------------------------------------------------------------------
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class TestResolvePersistBehavior:
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def test_session_flag_always_session_only(self):
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# --session opts out even if the config default is True.
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with _config({"model": {"persist_switch_by_default": True}}):
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assert resolve_persist_behavior(False, True) is False
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def test_no_provider_uses_config_default(self):
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# No --provider → respects config default (True).
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with _config({"model": {"persist_switch_by_default": True}}):
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assert resolve_persist_behavior(False, False, explicit_provider="") is True
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def test_first_pick_persists_then_session_only(self):
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# #90235 / #86414: the ONE policy every surface (CLI, gateway, Desktop
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# picker) defers to. With no default ever configured, the first pick
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# persists (even with --provider, which is how the Desktop picker
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# always sends it) so resolve_provider never falls through to a stray
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# env key on restart. Once a default exists, a plain pick is
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# session-only unless --global / persist_switch_by_default.
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with _config({"model": {}}):
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assert resolve_persist_behavior(False, False, explicit_provider="anthropic") is True
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with _config({"model": ""}):
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assert resolve_persist_behavior(False, False) is True
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with _config({"model": {"default": "gpt-5.6", "provider": "openai-codex"}}):
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assert resolve_persist_behavior(False, False, explicit_provider="openai-api") is False
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assert resolve_persist_behavior(False, False) is False
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assert resolve_persist_behavior(True, False, explicit_provider="openai-api") is True
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with _config({"model": "gpt-5.6"}):
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assert resolve_persist_behavior(False, False) is False
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# ---------------------------------------------------------------------------
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# helper
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# ---------------------------------------------------------------------------
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class _config:
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"""Context manager that patches ``load_config`` to return a fixed dict."""
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def __init__(self, cfg: dict):
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self.cfg = cfg
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def __enter__(self):
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self._patch = patch(
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"hermes_cli.config.load_config",
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return_value=self.cfg,
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)
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# resolve_persist_behavior imports load_config lazily inside the
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# function, so patching the source module is sufficient.
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self._patch.start()
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return self
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def __exit__(self, *exc):
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self._patch.stop()
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