86 lines
2.3 KiB
Python
86 lines
2.3 KiB
Python
import pytest
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from vyper import compiler
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from eth_tester import (
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EthereumTester,
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)
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from web3.providers.eth_tester import (
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EthereumTesterProvider,
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)
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from web3 import (
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Web3,
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)
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from vdb.vdb import (
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set_evm_opcode_debugger,
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VyperDebugCmd
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)
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from vdb.source_map import (
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produce_source_map
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)
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@pytest.fixture(scope="module")
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def tester():
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t = EthereumTester()
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return t
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def zero_gas_price_strategy(web3, transaction_params=None):
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return 0 # zero gas price makes testing simpler.
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@pytest.fixture(scope="module")
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def w3(tester):
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w3 = Web3(EthereumTesterProvider(tester))
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w3.eth.setGasPriceStrategy(zero_gas_price_strategy)
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return w3
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def _get_contract(w3, source_code, *args, **kwargs):
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abi = compiler.mk_full_signature(source_code)
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bytecode = '0x' + compiler.compile(source_code).hex()
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contract = w3.eth.contract(abi=abi, bytecode=bytecode)
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stdin = kwargs['stdin'] if 'stdin' in kwargs else None
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stdout = kwargs['stdout'] if 'stdout' in kwargs else None
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source_map = produce_source_map(source_code)
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set_evm_opcode_debugger(
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source_code=source_code, source_map=source_map, stdin=stdin, stdout=stdout
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)
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value = kwargs.pop('value', 0)
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value_in_eth = kwargs.pop('value_in_eth', 0)
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value = value_in_eth * 10**18 if value_in_eth else value # Handle deploying with an eth value.
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gasPrice = kwargs.pop('gasPrice', 0)
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deploy_transaction = {
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'from': w3.eth.accounts[0],
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'data': contract._encode_constructor_data(args, kwargs),
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'value': value,
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'gasPrice': gasPrice
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}
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tx = w3.eth.sendTransaction(deploy_transaction)
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address = w3.eth.getTransactionReceipt(tx)['contractAddress']
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contract = w3.eth.contract(address, abi=abi, bytecode=bytecode)
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# Filter logs.
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contract._logfilter = w3.eth.filter({
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'fromBlock': w3.eth.blockNumber - 1,
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'address': contract.address
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})
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return contract
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@pytest.fixture
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def get_contract(w3):
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def get_contract(source_code, *args, **kwargs):
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return _get_contract(w3, source_code, *args, **kwargs)
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return get_contract
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@pytest.fixture
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def get_last_out():
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def _get_last_out(stdout):
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return stdout.getvalue().splitlines()[-2].split(VyperDebugCmd.prompt)[1]
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return _get_last_out
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