def test_expire_at(self, cache: RedisCache):
# Test settings expiration time 1 hour ahead by datetime.
cache.set("foo", "bar", timeout=None)
expiration_time = datetime.datetime.now() + timedelta(hours=1)
assert cache.expire_at("foo", expiration_time) is True
ttl = cache.ttl("foo")
assert pytest.approx(ttl, 1) == timedelta(hours=1).total_seconds()
# Test settings expiration time 1 hour ahead by Unix timestamp.
cache.set("foo", "bar", timeout=None)
expiration_time = datetime.datetime.now() + timedelta(hours=2)
assert cache.expire_at("foo", int(expiration_time.timestamp())) is True
ttl = cache.ttl("foo")
assert pytest.approx(ttl, 1) == timedelta(hours=1).total_seconds() * 2
# Test settings expiration time 1 hour in past, which effectively
# deletes the key.
expiration_time = datetime.datetime.now() - timedelta(hours=2)
assert cache.expire_at("foo", expiration_time) is True
value = cache.get("foo")
assert value is None
expiration_time = datetime.datetime.now() + timedelta(hours=2)
assert cache.expire_at("not-existent-key", expiration_time) is False
def test_touch_forever(self, cache: RedisCache):
cache.set("test_key", "foo", timeout=1)
result = cache.touch("test_key", None)
assert result is True
assert cache.ttl("test_key") is None
time.sleep(2)
assert cache.get("test_key") == "foo"
def test_persist(self, cache: RedisCache):
cache.set("foo", "bar", timeout=20)
assert cache.persist("foo") is True
ttl = cache.ttl("foo")
assert ttl is None
assert cache.persist("not-existent-key") is False
def test_ttl(self, cache: RedisCache):
cache.set("foo", "bar", 10)
ttl = cache.ttl("foo")
if isinstance(cache.client, herd.HerdClient):
assert pytest.approx(ttl) == 12
else:
assert pytest.approx(ttl) == 10
# Test ttl None
cache.set("foo", "foo", timeout=None)
ttl = cache.ttl("foo")
assert ttl is None
# Test ttl with expired key
cache.set("foo", "foo", timeout=-1)
ttl = cache.ttl("foo")
assert ttl == 0
# Test ttl with not existent key
ttl = cache.ttl("not-existent-key")
assert ttl == 0
def test_expire(self, cache: RedisCache):
cache.set("foo", "bar", timeout=None)
assert cache.expire("foo", 20) is True
ttl = cache.ttl("foo")
assert pytest.approx(ttl) == 20
assert cache.expire("not-existent-key", 20) is False