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from __future__ import unicode_literals
import unittest
from rich._lru_cache import LRUCache
def test_lru_cache():
cache = LRUCache(3)
# insert some values
cache["foo"] = 1
cache["bar"] = 2
cache["baz"] = 3
assert "foo" in cache
# Cache size is 3, so the following should kick oldest one out
cache["egg"] = 4
assert "foo" not in cache
assert "egg" in "egg" in cache
# cache is now full
# look up two keys
cache["bar"]
cache["baz"]
# Insert a new value
cache["eggegg"] = 5
# Check it kicked out the 'oldest' key
assert "egg" not in cache
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