"""Shared pytest fixtures for the Gitea-Tools test suite."""
import sys

import pytest

sys.path.insert(0, str(__import__("pathlib").Path(__file__).resolve().parent.parent))


@pytest.fixture(autouse=True)
def _reset_mutation_authority(monkeypatch):
    """Isolate the in-process mutation authority between tests (#199).

    The mutation-authority gate stays LIVE in every test — this fixture only
    clears the per-process record and the session profile lock so one test's
    seeded authority (or an intentionally mismatched one) cannot leak into
    the next test. It must never replace verify_mutation_authority with a
    no-op: individual tests that need a specific authority state set it up
    explicitly.
    """
    monkeypatch.delenv("GITEA_SESSION_PROFILE_LOCK", raising=False)
    try:
        import mcp_server
    except Exception:
        yield
        return
    monkeypatch.setattr(mcp_server, "_MUTATION_AUTHORITY", None)
    monkeypatch.setattr(mcp_server, "_IDENTITY_CACHE", {})
    monkeypatch.setattr(mcp_server, "_REVIEW_DECISION_LOCK", None)
    yield