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import pytest
import rlp
def test_compare_length():
data = rlp.encode([1,2,3,4,5])
assert rlp.compare_length(data, 100) == -1
assert rlp.compare_length(data, 5) == 0
assert rlp.compare_length(data, 1) == 1
data = rlp.encode([])
assert rlp.compare_length(data, 100) == -1
assert rlp.compare_length(data, 0) == 0
assert rlp.compare_length(data, -1) == 1
def test_favor_short_string_form():
data = rlp.utils.decode_hex('b8056d6f6f7365')
with pytest.raises(rlp.exceptions.DecodingError):
rlp.decode(data)
data = rlp.utils.decode_hex('856d6f6f7365')
assert rlp.decode(data) == b'moose'
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