test_server_cache.py•4.69 kB
import copy
import json
import sys
from pathlib import Path
from typing import Any, Dict, List
import pytest
# Add parent directory to path for server import
sys.path.insert(0, str(Path(__file__).parent.parent))
import server
class DummyResponse:
def __init__(self, payload: Dict[str, Any], url: str = "https://api.kulturpool.at/search/") -> None:
self._payload = copy.deepcopy(payload)
self.url = url
encoded = json.dumps(self._payload)
self.headers = {
"content-type": "application/json",
"content-length": str(len(encoded)),
}
def raise_for_status(self) -> None: # pylint: disable=unused-argument
return None
def json(self) -> Dict[str, Any]:
return copy.deepcopy(self._payload)
class DummySession:
def __init__(self, responses: List[Dict[str, Any]]) -> None:
self._responses = responses
self.calls = 0
self.last_call: Dict[str, Any] = {}
def get(self, url: str, params: Dict[str, Any] | None = None, timeout: int | None = None) -> DummyResponse: # noqa: ARG002
self.last_call = {"url": url, "params": copy.deepcopy(params)}
index = min(self.calls, len(self._responses) - 1)
self.calls += 1
return DummyResponse(self._responses[index], url=url)
def _build_institution_payload() -> Dict[str, Any]:
return {
"data": [
{
"id": 1,
"name": "Testmuseum",
"web_collection_url": "https://example.com/collection",
"website_url": "https://example.com",
"location": {
"coordinates": [[16.3725, 48.2082]]
},
}
]
}
def test_get_institutions_cache_consistency(monkeypatch: pytest.MonkeyPatch) -> None:
local_cache = server.ResponseCache(max_size=10, cleanup_interval=0)
monkeypatch.setattr(server, "response_cache", local_cache, raising=False)
client = server.KulturpoolClient()
session = DummySession([_build_institution_payload()])
client.session = session
first = client.get_institutions(include_locations=True)
second = client.get_institutions(include_locations=True)
assert first == second
assert session.calls == 1, "Expected cache hit to skip second network call"
assert first["institutions"][0]["location"]["lat"] == pytest.approx(48.2082)
def test_get_institutions_cache_respects_include_locations(monkeypatch: pytest.MonkeyPatch) -> None:
local_cache = server.ResponseCache(max_size=10, cleanup_interval=0)
monkeypatch.setattr(server, "response_cache", local_cache, raising=False)
client = server.KulturpoolClient()
payload = _build_institution_payload()
session = DummySession([payload, payload])
client.session = session
with_locations = client.get_institutions(include_locations=True)
without_locations = client.get_institutions(include_locations=False)
assert session.calls == 2, "Different include_locations flags should bypass cache reuse"
assert "location" in with_locations["institutions"][0]
assert "location" not in without_locations["institutions"][0]
def test_search_preserves_params(monkeypatch: pytest.MonkeyPatch) -> None:
local_cache = server.ResponseCache(max_size=10, cleanup_interval=0)
monkeypatch.setattr(server, "response_cache", local_cache, raising=False)
client = server.KulturpoolClient()
session = DummySession([
{
"hits": [],
"found": 0,
"facet_counts": [],
}
])
client.session = session
params = {
"q": "wasser",
"filter_by": "dataProvider:=Albertina",
"sort_by": "dateMin:asc",
}
params_snapshot = copy.deepcopy(params)
result = client.search(params)
assert params == params_snapshot, "search must not mutate caller-supplied params"
assert result["found"] == 0
assert session.last_call["params"] is None
assert "filter_by" in session.last_call["url"], "filter_by should be in request URL"
def test_response_cache_lru_eviction() -> None:
cache = server.ResponseCache(max_size=2, cleanup_interval=0)
cache.set("url1", {"a": 1}, {"value": 1}, 60)
cache.set("url2", {"b": 2}, {"value": 2}, 60)
# Access url1 to mark it as recently used, then insert a third item
assert cache.get("url1", {"a": 1})["value"] == 1
cache.set("url3", {"c": 3}, {"value": 3}, 60)
# url2 should have been evicted (least recently used)
assert cache.get("url2", {"b": 2}) is None
assert cache.get("url1", {"a": 1})["value"] == 1
assert cache.get("url3", {"c": 3})["value"] == 3