arm-core/api/tests/test_app.py

160 lines
5.2 KiB
Python

"""Быстрые тесты каркаса приложения: аутентификация NATS, /healthcheck, префикс API (без БД и NATS)."""
import importlib
import os
from http import HTTPStatus
from types import SimpleNamespace
import httpx
import nkeys
import pytest
from src.api.router import router
from src.core.config import NATSSettings
# src/__init__.py реэкспортирует объект app под именем модуля, поэтому модуль берём через importlib
app_module = importlib.import_module("src.app")
def _nats_settings(seed: str = "", jwt: str = "") -> NATSSettings:
return NATSSettings(NATS_URL="nats://localhost:4222", NATS_SEED=seed, NATS_JWT=jwt)
def _valid_seed() -> str:
return nkeys.encode_seed(os.urandom(32), nkeys.PREFIX_BYTE_USER).decode("utf-8")
def test_build_nats_auth_empty_credentials_gives_no_kwargs():
assert app_module._build_nats_auth(_nats_settings()) == {}
@pytest.mark.parametrize(
("seed", "jwt"),
[("SU-only-seed", ""), ("", "only-jwt")],
)
def test_build_nats_auth_partial_credentials_is_config_error(seed: str, jwt: str):
with pytest.raises(RuntimeError, match="NATS_SEED"):
app_module._build_nats_auth(_nats_settings(seed, jwt))
def test_build_nats_auth_valid_credentials_give_callbacks():
seed = _valid_seed()
auth = app_module._build_nats_auth(_nats_settings(seed, "header.payload.signature"))
assert set(auth) == {"user_jwt_cb", "signature_cb"}
assert auth["user_jwt_cb"]() == b"header.payload.signature"
signature = auth["signature_cb"](b"nonce")
assert isinstance(signature, bytes)
assert signature
@pytest.fixture
async def client():
# Без lifespan: app.state.nats не установлен — healthcheck обязан это пережить
transport = httpx.ASGITransport(app=app_module.app)
async with httpx.AsyncClient(transport=transport, base_url="http://test") as c:
yield c
async def test_healthcheck_nats_off_when_disabled(client: httpx.AsyncClient, monkeypatch: pytest.MonkeyPatch):
monkeypatch.setattr(app_module.settings, "NATS_ENABLED", False)
response = await client.get("/healthcheck")
assert response.status_code == HTTPStatus.OK
body = response.json()
assert body["nats"] == "off"
assert {"uptime", "version"} <= set(body)
async def test_healthcheck_nats_down_when_enabled_without_connection(
client: httpx.AsyncClient, monkeypatch: pytest.MonkeyPatch
):
monkeypatch.setattr(app_module.settings, "NATS_ENABLED", True)
response = await client.get("/healthcheck")
assert response.status_code == HTTPStatus.OK
assert response.json()["nats"] == "down"
@pytest.mark.parametrize(("connected", "expected"), [(True, "ok"), (False, "down")])
async def test_healthcheck_nats_follows_connection_state(
client: httpx.AsyncClient, monkeypatch: pytest.MonkeyPatch, connected: bool, expected: str
):
monkeypatch.setattr(app_module.settings, "NATS_ENABLED", True)
monkeypatch.setattr(app_module.app.state, "nats", SimpleNamespace(is_connected=connected), raising=False)
response = await client.get("/healthcheck")
assert response.status_code == HTTPStatus.OK
assert response.json()["nats"] == expected
def test_router_prefix():
assert router.prefix == "/api/v1"
class _FakeNats:
def __init__(self) -> None:
self.closed = False
async def close(self) -> None:
self.closed = True
class _FakeS3Client:
def __init__(self) -> None:
self.session_closed = False
async def close_session(self) -> None:
self.session_closed = True
@pytest.fixture
def _no_smb(monkeypatch: pytest.MonkeyPatch) -> None:
monkeypatch.setattr(app_module.smbclient, "register_session", lambda *args, **kwargs: None)
monkeypatch.setattr(app_module.smbclient, "reset_connection_cache", lambda: None)
@pytest.mark.usefixtures("_no_smb")
async def test_lifespan_starts_when_s3_and_nats_unavailable(monkeypatch: pytest.MonkeyPatch):
async def unavailable() -> None:
return None
monkeypatch.setattr(app_module, "_connect_s3", unavailable)
monkeypatch.setattr(app_module, "_connect_nats", unavailable)
reached_yield = False
async with app_module.lifespan(app_module.app):
reached_yield = True
assert app_module.app.state.storage is None
assert app_module.app.state.nats is None
assert reached_yield
@pytest.mark.usefixtures("_no_smb")
async def test_lifespan_closes_created_resources(monkeypatch: pytest.MonkeyPatch):
fake_nats = _FakeNats()
s3_client = _FakeS3Client()
storage = SimpleNamespace(client=s3_client)
async def connect_s3() -> SimpleNamespace:
return storage
async def connect_nats() -> _FakeNats:
return fake_nats
monkeypatch.setattr(app_module, "_connect_s3", connect_s3)
monkeypatch.setattr(app_module, "_connect_nats", connect_nats)
async with app_module.lifespan(app_module.app):
assert app_module.app.state.storage is storage
assert app_module.app.state.nats is fake_nats
assert not fake_nats.closed
assert not s3_client.session_closed
assert fake_nats.closed
assert s3_client.session_closed