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"""Tests of 0x.order_utils.asset_data_utils."""
import pytest
from zero_ex.order_utils.asset_data_utils import (
encode_erc20_asset_data,
decode_erc20_asset_data,
ERC20_ASSET_DATA_BYTE_LENGTH,
)
def test_encode_erc20_asset_data_type_error():
"""Test that passing in a non-string raises a TypeError."""
with pytest.raises(TypeError):
encode_erc20_asset_data(123)
def test_decode_erc20_asset_data_type_error():
"""Test that passing in a non-string raises a TypeError."""
with pytest.raises(TypeError):
decode_erc20_asset_data(123)
def test_decode_erc20_asset_data_too_short():
"""Test that passing an insufficiently long string raises a ValueError."""
with pytest.raises(ValueError):
decode_erc20_asset_data(" " * (ERC20_ASSET_DATA_BYTE_LENGTH - 1))
def test_decode_erc20_asset_data_invalid_proxy_id():
"""Test that passing data with an invalid proxy ID raises a ValueError."""
with pytest.raises(ValueError):
decode_erc20_asset_data(
"0xffffffff" + (" " * ERC20_ASSET_DATA_BYTE_LENGTH)
)
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