def test_simple():
d = dict()
lru = LRU(2, d)
lru['x'] = 1
lru['y'] = 2
assert lru['x'] == 1
assert lru['y'] == 2
assert d == {'x': 1, 'y': 2}
lru['z'] = 3
assert len(d) == 2
assert len(lru) == 2
assert 'z' in d
assert 'z' in lru
assert 'x' not in d
assert 'y' in d
del lru['y']
assert 'y' not in d
assert 'y' not in lru
lru['a'] = 5
assert set(lru.keys()) == set(['z', 'a'])
assert 'a' in str(lru) and '5' in str(lru)
assert 'a' in repr(lru) and '5' in repr(lru)
def test_simple():
d = dict()
lru = LRU(2, d)
lru["x"] = 1
lru["y"] = 2
assert lru["x"] == 1
assert lru["y"] == 2
assert d == {"x": 1, "y": 2}
lru["z"] = 3
assert len(d) == 2
assert len(lru) == 2
assert "z" in d
assert "z" in lru
assert "x" not in d
assert "y" in d
del lru["y"]
assert "y" not in d
assert "y" not in lru
lru["a"] = 5
assert set(lru.keys()) == set(["z", "a"])
def test_simple():
d = dict()
lru = LRU(2, d)
lru['x'] = 1
lru['y'] = 2
assert lru['x'] == 1
assert lru['y'] == 2
assert d == {'x': 1, 'y': 2}
lru['z'] = 3
assert len(d) == 2
assert len(lru) == 2
assert 'z' in d
assert 'z' in lru
assert 'x' not in d
assert 'y' in d
del lru['y']
assert 'y' not in d
assert 'y' not in lru
lru['a'] = 5
assert set(lru.keys()) == set(['z', 'a'])