rewrite phase 1

tests/test_health.py

@@ -0,0 +1,77 @@
+from types import SimpleNamespace
+
+import pytest
+from fastapi import FastAPI
+from httpx import ASGITransport, AsyncClient, Response
+
+from agentci.health import router
+
+
+class Provider:
+    def __init__(self, result: bool | Exception) -> None:
+        self.result = result
+        self.calls = 0
+
+    async def ready(self) -> bool:
+        self.calls += 1
+        if isinstance(self.result, Exception):
+            raise self.result
+        return self.result
+
+
+def application(provider: Provider | None = None) -> FastAPI:
+    app = FastAPI()
+    app.include_router(router)
+    if provider is not None:
+        app.state.runtime = SimpleNamespace(opencode=provider)
+    return app
+
+
+async def get(app: FastAPI, path: str) -> Response:
+    async with AsyncClient(
+        transport=ASGITransport(app=app, raise_app_exceptions=False),
+        base_url="http://test",
+    ) as client:
+        return await client.get(path)
+
+
+async def test_liveness_does_not_depend_on_runtime_providers() -> None:
+    response = await get(application(), "/health/live")
+
+    assert response.status_code == 200
+    assert response.json() == {"status": "live"}
+
+
+@pytest.mark.parametrize(
+    ("provider_ready", "status_code", "payload"),
+    [
+        (True, 200, {"status": "ready"}),
+        (
+            False,
+            503,
+            {
+                "status": "not-ready",
+                "reason": "opencode provider is not connected",
+            },
+        ),
+    ],
+)
+async def test_readiness_reflects_provider_state(
+    provider_ready: bool, status_code: int, payload: dict[str, str]
+) -> None:
+    provider = Provider(provider_ready)
+
+    response = await get(application(provider), "/health/ready")
+
+    assert response.status_code == status_code
+    assert response.json() == payload
+    assert provider.calls == 1
+
+
+async def test_readiness_provider_error_is_server_failure() -> None:
+    provider = Provider(RuntimeError("provider check failed"))
+
+    response = await get(application(provider), "/health/ready")
+
+    assert response.status_code == 500
+    assert provider.calls == 1