def test_remove_oldest(self):
c = OmeroTablesFeatureStore.LRUCache(2)
c.insert('key1', 1)
c.insert('key2', 2)
assert c.remove_oldest() == 1
assert c.cache.keys() == ['key2']
c.insert('key3', 3)
c.get('key2')
assert c.remove_oldest() == 3
assert c.cache.keys() == ['key2']
c.insert('key3', 3)
c.get('key2')
c.insert('key4', 3)
assert sorted(c.cache.keys()) == ['key2', 'key4']
def test_get_insert(self):
c = OmeroTablesFeatureStore.LRUCache(2)
assert len(c) == 0
assert c.get('key1') is None
assert c.get('key1', -1) == -1
c.insert('key1', 1)
assert c.get('key1') == 1
assert len(c) == 1
c.insert('key1', 'a')
assert c.get('key1') == 'a'
assert len(c) == 1
c.insert('key2', 2)
assert c.get('key1') == 'a'
assert c.get('key2') == 2
assert len(c) == 2
