def test_unpack_unsigned_max():
    assert U24BE.unpack(b"\xff\xff\xff")[0] == 16777215
def test_pack_unsigned_min():
    assert U24BE(0) == b"\x00\x00\x00"
def test_unpack_unsigned_min():
    assert U24BE.unpack(b"\x00\x00\x00")[0] == 0
def test_unpack_unsigned_max():
    assert U24BE.unpack(b"\xff\xff\xff")[0] == 16777215
def test_unpack_unsigned_min():
    assert U24BE.unpack(b"\x00\x00\x00")[0] == 0
def test_pack_unsigned_underflow():
    U24BE(-1)
def test_pack_unsigned_overflow():
    U24BE(16777216)
def test_pack_unsigned_max():
    assert U24BE(16777215) == b"\xff\xff\xff"