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from __future__ import annotations
from datetime import datetime, timedelta, timezone
from json import JSONDecodeError
from pathlib import Path
from unittest.mock import Mock, patch
import freezegun
import pytest
from streamlink.cache import Cache
@pytest.fixture(autouse=True)
def cache_dir(tmp_path: Path):
with patch("streamlink.cache.CACHE_DIR", tmp_path):
yield tmp_path
@pytest.fixture()
def cache(request: pytest.FixtureRequest, cache_dir: Path):
param = getattr(request, "param", {})
filename = param.get("filename", "cache.json")
key_prefix = param.get("key_prefix", None)
cache = Cache(filename, key_prefix=key_prefix)
assert cache.filename == cache_dir / filename
# noinspection PyProtectedMember
assert not cache._cache
return cache
class TestPathlibAndStr:
@pytest.mark.parametrize(
"filename",
[
pytest.param("foo", id="str"),
pytest.param(Path("foo"), id="Path"),
],
)
def test_constructor(self, cache_dir: Path, filename: str | Path):
cache = Cache(filename)
assert cache.filename == cache_dir / Path(filename)
class TestGetterSetter:
def test_get(self, cache: Cache):
assert cache.get("missing-value") is None
assert cache.get("missing-value", default="default") == "default"
def test_set(self, cache: Cache):
assert cache.get("value") is None
cache.set("value", 1)
assert cache.get("value") == 1
assert cache._cache
def test_get_all(self, cache: Cache):
cache.set("test1", 1)
cache.set("test2", 2)
assert cache.get_all() == {"test1": 1, "test2": 2}
def test_get_all_prune(self, cache: Cache):
cache.set("test1", 1)
cache.set("test2", 2, -1)
assert cache.get_all() == {"test1": 1}
class TestPrefix:
@pytest.mark.parametrize("cache", [{"key_prefix": "test"}], indirect=["cache"])
def test_key_prefix(self, cache: Cache):
cache.set("key", 1)
assert cache.get("key") == 1
assert "test:key" in cache._cache
assert cache._cache["test:key"]["value"] == 1
def test_get_all_prefix(self, cache: Cache):
cache.set("test1", 1)
cache.set("test2", 2)
cache.key_prefix = "test"
cache.set("test3", 3)
cache.set("test4", 4)
assert cache.get_all() == {"test3": 3, "test4": 4}
class TestExpiration:
@pytest.mark.parametrize(
("expires", "expected"),
[
pytest.param(-20, None, id="past"),
pytest.param(20, "value", id="future"),
],
)
def test_expires(self, cache: Cache, expires: float, expected):
with freezegun.freeze_time("2000-01-01T00:00:00Z"):
cache.set("key", "value", expires=expires)
assert cache.get("key") == expected
@pytest.mark.parametrize(
("delta", "expected"),
[
pytest.param(timedelta(seconds=-20), None, id="past"),
pytest.param(timedelta(seconds=20), "value", id="future"),
],
)
def test_expires_at(self, cache: Cache, delta: timedelta, expected):
with freezegun.freeze_time("2000-01-01T00:00:00Z"):
cache.set("key", "value", expires_at=datetime.now(tz=timezone.utc) + delta)
assert cache.get("key") == expected
def test_expires_at_overflowerror(self, cache: Cache):
expires_at = Mock(timestamp=Mock(side_effect=OverflowError))
cache.set("key", "value", expires_at=expires_at)
assert cache.get("key") is None
def test_expiration(self, cache: Cache):
with freezegun.freeze_time("2000-01-01T00:00:00Z") as frozen_time:
cache.set("key", "value", expires=20)
assert cache.get("key") == "value"
frozen_time.tick(timedelta(seconds=20))
assert cache.get("key") is None
class TestIO:
@pytest.mark.parametrize(
("mockpath", "side_effect"),
[
("pathlib.Path.open", OSError),
("json.load", JSONDecodeError),
],
)
def test_load_fail(self, cache: Cache, mockpath: str, side_effect: type[Exception]):
with patch("pathlib.Path.exists", return_value=True):
with patch(mockpath, side_effect=side_effect):
cache._load()
assert not cache._cache
@pytest.mark.parametrize(
"side_effect",
[
RecursionError,
TypeError,
ValueError,
],
)
def test_save_fail_jsondump(self, cache: Cache, side_effect: type[Exception]):
with patch("json.dump", side_effect=side_effect):
with pytest.raises(side_effect):
cache.set("key", "value")
assert not cache.filename.exists()
class TestCreateDirectory:
filepath = Path("dir1", "dir2", "cache.json")
def test_success(self, cache_dir: Path):
expected = cache_dir / self.filepath
cache = Cache(self.filepath)
assert not expected.exists()
cache.set("key", "value")
assert expected.exists()
def test_failure(self, cache_dir: Path):
with patch("pathlib.Path.mkdir", side_effect=OSError):
expected = cache_dir / self.filepath
cache = Cache(self.filepath)
assert not expected.exists()
cache.set("key", "value")
assert not expected.exists()
assert not list(cache_dir.iterdir())
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