def format(self, key, record):
     spaces = " " * (self.max_key_length - len(key) + 1)
     if record.get("unit") == "bytes":
         return "%s:%s%s" % (
             key, spaces, human_size_format(record.get("value")))
     else:
         return "%s:%s%s %s" % (
             key, spaces, record.get("value"), record.get("unit"))
def test_human_size_format(value, expected):
    assert human_size_format(value) == expected