"""Tests for the post_setup install-state gate in `_toolset_needs_configuration_prompt`.

Regression coverage for the cua-driver silent-no-op bug (issue #22737).

When a no-key provider's only install side-effect is a `post_setup` hook
(cua-driver, etc.), the gate function used to fall through to the
`_toolset_has_keys` catch-all, which returned True for any provider with
empty `env_vars` — causing `hermes tools` to write the toolset to config
and exit `✓ Saved` without ever invoking the post_setup install. These
tests pin the new predicate-aware behaviour so the regression doesn't
sneak back in.
"""

from __future__ import annotations


class TestPostSetupGate:
    def test_cua_driver_missing_forces_setup(self, monkeypatch, tmp_path):
        """When cua-driver isn't on PATH, the gate must return True so the
        provider-setup flow runs and triggers `_run_post_setup`."""
        from hermes_cli import tools_config

        monkeypatch.setenv("HERMES_HOME", str(tmp_path))
        monkeypatch.setattr(tools_config.shutil, "which", lambda name, path=None: None)

        assert tools_config._toolset_needs_configuration_prompt(
            "computer_use", {}
        ) is True


    def test_post_setup_predicate_exception_does_not_block(self, monkeypatch):
        """A predicate that raises must be treated as 'satisfied' so a
        broken check can't strand the user in an infinite setup loop."""
        from hermes_cli import tools_config

        def _boom():
            raise RuntimeError("predicate broken")

        monkeypatch.setitem(tools_config._POST_SETUP_INSTALLED, "cua_driver", _boom)
        assert tools_config._post_setup_already_installed("cua_driver") is True