def test_keys_repr():
blocks = {5: b'Hello', 12: b", World!"}
cb = ContiguousBytes(blocks)
assert repr(cb.keys()) == "RangeSet(start=5, stop=20)"
def test_keys_getitem():
blocks = {5: b'Hello', 12: b", World!"}
cb = ContiguousBytes(blocks)
assert cb.keys()[0] == 5
def test_keys_len():
blocks = {5: b'Hello', 12: b", World!"}
cb = ContiguousBytes(blocks)
assert len(cb.keys()) == 15
def test_keys_start():
blocks = {5: b'Hello', 12: b", World!"}
cb = ContiguousBytes(blocks)
assert cb.keys().start == 5