def test_flush(self, mock_utc_now):
now = utc_now()
now_plus_10 = now + datetime.timedelta(seconds=10)
now_plus_20 = now + datetime.timedelta(seconds=20)
mock_utc_now.return_value = now
cache = ExpiringCache(default_ttl=100)
# At time now
cache["foo"] = "bar"
# At time now + 10
mock_utc_now.return_value = now_plus_10
cache["foo10"] = "bar"
# At time now + 20
mock_utc_now.return_value = now_plus_20
cache["foo20"] = "bar"
assert cache._data == {
"foo": [now + cache._default_ttl, "bar"],
"foo10": [now_plus_10 + cache._default_ttl, "bar"],
"foo20": [now_plus_20 + cache._default_ttl, "bar"],
}
# Set to now + 105 which expires the first, but not the other two
mock_utc_now.return_value = now + datetime.timedelta(seconds=105)
cache.flush()
# We don't want to trigger eviction or anything like that, so check
# the contents of the internal data structure directly
assert cache._data == {
"foo10": [now_plus_10 + cache._default_ttl, "bar"],
"foo20": [now_plus_20 + cache._default_ttl, "bar"],
}
def test_flush(self, mock_utc_now):
now = utc_now()
now_plus_10 = now + datetime.timedelta(seconds=10)
now_plus_20 = now + datetime.timedelta(seconds=20)
mock_utc_now.return_value = now
cache = ExpiringCache(default_ttl=100)
# At time now
cache['foo'] = 'bar'
# At time now + 10
mock_utc_now.return_value = now_plus_10
cache['foo10'] = 'bar'
# At time now + 20
mock_utc_now.return_value = now_plus_20
cache['foo20'] = 'bar'
assert (cache._data == {
'foo': [now + cache._default_ttl, 'bar'],
'foo10': [now_plus_10 + cache._default_ttl, 'bar'],
'foo20': [now_plus_20 + cache._default_ttl, 'bar'],
})
# Set to now + 105 which expires the first, but not the other two
mock_utc_now.return_value = now + datetime.timedelta(seconds=105)
cache.flush()
assert (cache._data == {
'foo10': [now_plus_10 + cache._default_ttl, 'bar'],
'foo20': [now_plus_20 + cache._default_ttl, 'bar'],
})