"""Suite-wide isolation from services that happen to run on the test host.

A store built without an explicit provider_runtime reads os.environ, and the
LLM client defaults to Ollama on 127.0.0.1:11434. With a local Ollama running,
those tests made real calls and three test_http_app specs failed on socket
timeouts - an air-gapped project's suite depended on the *absence* of a local
service. Point the default at a port nothing listens on; tests that exercise the
LLM pass their own env and fake transport and are unaffected.
"""

from __future__ import annotations

import pytest

_DEAD_OLLAMA = "http://127.0.0.1:1"


@pytest.fixture(autouse=True)
def _no_local_ollama(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setenv("OLLAMA_BASE_URL", _DEAD_OLLAMA)