eth-erc20/python/tests/test_erc20.py

75 lines
1.9 KiB
Python
Raw Normal View History

2021-05-08 06:56:02 +02:00
# standard imports
import logging
import os
# external imports
from hexathon import (
strip_0x,
add_0x,
)
from chainlib.eth.address import to_checksum_address
from chainlib.eth.tx import (
unpack,
TxFormat,
)
from chainlib.eth.pytest import *
# local imports
from eth_erc20 import ERC20
logg = logging.getLogger()
contract_address = to_checksum_address('0xdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef')
benefactor_address = to_checksum_address('0xefdeadbeefdeadbeefdeadbeefdeadbeefdeadbe')
# TODO: use unittest instead
def test_erc20_balance(
default_chain_spec,
):
e = ERC20(default_chain_spec,)
holder_address = to_checksum_address('0xbeefdeadbeefdeadbeefdeadbeefdeadbeefdead')
o = e.balance_of(contract_address, holder_address)
assert len(o['params'][0]['data']) == 64 + 8 + 2
assert o['params'][0]['data'][:10] == add_0x('70a08231')
def test_erc20_decimals(
default_chain_spec,
):
e = ERC20(default_chain_spec)
o = e.decimals(contract_address)
assert o['params'][0]['data'] == add_0x('313ce567')
def test_erc20_transfer(
keystore,
signer,
default_chain_spec,
):
e = ERC20(default_chain_spec, signer=signer)
addresses = keystore.list()
(tx_hash_hex, o) = e.transfer(contract_address, addresses[0], benefactor_address, 1024)
def test_erc20_parse_transfer_request(
keystore,
signer,
default_chain_spec,
):
e = ERC20(default_chain_spec, signer=signer)
addresses = keystore.list()
(tx_hash_hex, o) = e.transfer(contract_address, addresses[0], benefactor_address, 1024, tx_format=TxFormat.RLP_SIGNED)
b = bytes.fromhex(strip_0x(o))
#chain_spec = ChainSpec('evm', 'foo', 1, 'bar')
tx = unpack(b, default_chain_spec)
r = ERC20.parse_transfer_request(tx['data'])
assert r[0] == benefactor_address
assert r[1] == 1024