def METHOD_NAME(nb):
    """Make sure that converting to bigger unit gets the number smaller .
    Also tests that two steps are equal to two consecutive steps
    """
    toKB = convertSizeUnits(nb, "B", "kB")
    toMB = convertSizeUnits(nb, "B", "MB")
    fromkBtoMB = convertSizeUnits(toKB, "kB", "MB")
    assert toKB < nb
    assert toMB < toKB
    assert toMB == fromkBtoMB