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ethereum / eth-tester

Tool suite for testing ethereum applications.
MIT License
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Got error 'ConstantinopleState' object has no attribute 'execute_transaction' #167

Open arjunaskykok opened 5 years ago

arjunaskykok commented 5 years ago

What was wrong?

$ python3.7 -m venv .venv $ source .venv/bin/activate $ cat requirements.txt vyper pytest web3 eth-tester py-evm $ pip install -r requirements.txt $ cat HelloWorld.json

{
    "contractName": "HelloWorld",
    "abi": [
        {
            "outputs": [],
            "inputs": [],
            "constant": false,
            "payable": false,
            "type": "constructor"
        },
        {
            "name": "setGreeting",
            "outputs": [],
            "inputs": [
                {
                    "type": "bytes",
                    "name": "x"
                }
            ],
            "constant": false,
            "payable": false,
            "type": "function",
            "gas": 70954
        },
        {
            "name": "greet",
            "outputs": [
                {
                    "type": "bytes",
                    "name": "out"
                }
            ],
            "inputs": [],
            "constant": false,
            "payable": false,
            "type": "function",
            "gas": 4524
        }
    ],
    "bytecode": "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",
    "compiler": {
        "name": "vyper",
        "version": "0.1.0b10"
    }
}

$ cat test_greeter.py

from json import load
from pathlib import Path

import pytest
from web3 import (
    EthereumTesterProvider,
    Web3,
)

@pytest.fixture
def eth_tester():
    return EthereumTesterProvider().ethereum_tester

def contract(smart_contract_name, parameters=[], contract_directory=Path('.')):
    build_contracts_dir = contract_directory
    contract_json_file = (build_contracts_dir / smart_contract_name).with_suffix('.json')

    with open(contract_json_file, 'r') as smart_contract_build_file:
        json_object = load(smart_contract_build_file)
        bytecode = json_object["bytecode"]
        abi = json_object["abi"]
        w3 = Web3(EthereumTesterProvider())
        contract = w3.eth.contract(abi=abi, bytecode=bytecode)
        tx_hash = contract.constructor(*parameters).transact()
        tx_receipt = w3.eth.waitForTransactionReceipt(tx_hash)
        contract = w3.eth.contract(abi=abi, address=tx_receipt.contractAddress)
        return contract

def test_initial_greeting():
    hello_world_contract = contract("HelloWorld")
    assert hello_world_contract.functions.greet().call() == b"Hello World"

$ py.test test_greeter.py

platform darwin -- Python 3.7.4, pytest-5.1.3, py-1.8.0, pluggy-0.13.0
rootdir: /Users/sarahconnor/bugweb3_v5
plugins: web3-5.1.0
collected 1 item

test_greeter.py F                                                                                                                    [100%]

================================================================= FAILURES =================================================================
__________________________________________________________ test_initial_greeting ___________________________________________________________

    def test_initial_greeting():
        hello_world_contract = contract("HelloWorld")
>       assert hello_world_contract.functions.greet().call() == b"Hello World"

test_greeter.py:33:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
.venv/lib/python3.7/site-packages/web3/contract.py:842: in call
    **self.kwargs
.venv/lib/python3.7/site-packages/web3/contract.py:1346: in call_contract_function
    return_data = web3.eth.call(call_transaction, block_identifier=block_id)
.venv/lib/python3.7/site-packages/eth_utils/functional.py:45: in inner
    return callback(fn(*args, **kwargs))
.venv/lib/python3.7/site-packages/web3/eth.py:347: in call
    [transaction, block_identifier],
.venv/lib/python3.7/site-packages/web3/manager.py:94: in request_blocking
    response = self._make_request(method, params)
.venv/lib/python3.7/site-packages/web3/manager.py:81: in _make_request
    return request_func(method, params)
cytoolz/functoolz.pyx:250: in cytoolz.functoolz.curry.__call__
    ???
.venv/lib/python3.7/site-packages/web3/middleware/formatting.py:50: in apply_formatters
    response = make_request(method, params)
.venv/lib/python3.7/site-packages/web3/middleware/gas_price_strategy.py:18: in middleware
    return make_request(method, params)
cytoolz/functoolz.pyx:250: in cytoolz.functoolz.curry.__call__
    ???
.venv/lib/python3.7/site-packages/web3/middleware/formatting.py:48: in apply_formatters
    response = make_request(method, formatted_params)
.venv/lib/python3.7/site-packages/web3/middleware/attrdict.py:18: in middleware
    response = make_request(method, params)
cytoolz/functoolz.pyx:250: in cytoolz.functoolz.curry.__call__
    ???
.venv/lib/python3.7/site-packages/web3/middleware/formatting.py:48: in apply_formatters
    response = make_request(method, formatted_params)
.venv/lib/python3.7/site-packages/web3/middleware/normalize_errors.py:9: in middleware
    result = make_request(method, params)
cytoolz/functoolz.pyx:250: in cytoolz.functoolz.curry.__call__
    ???
.venv/lib/python3.7/site-packages/web3/middleware/formatting.py:48: in apply_formatters
    response = make_request(method, formatted_params)
cytoolz/functoolz.pyx:250: in cytoolz.functoolz.curry.__call__
    ???
.venv/lib/python3.7/site-packages/web3/middleware/formatting.py:48: in apply_formatters
    response = make_request(method, formatted_params)
.venv/lib/python3.7/site-packages/web3/providers/eth_tester/middleware.py:300: in middleware
    return make_request(method, [filled_transaction] + params[1:])
cytoolz/functoolz.pyx:250: in cytoolz.functoolz.curry.__call__
    ???
.venv/lib/python3.7/site-packages/web3/middleware/formatting.py:48: in apply_formatters
    response = make_request(method, formatted_params)
.venv/lib/python3.7/site-packages/web3/providers/eth_tester/main.py:68: in make_request
    response = delegator(self.ethereum_tester, params)
cytoolz/functoolz.pyx:250: in cytoolz.functoolz.curry.__call__
    ???
.venv/lib/python3.7/site-packages/web3/providers/eth_tester/defaults.py:36: in call_eth_tester
    return getattr(eth_tester, fn_name)(*fn_args, **fn_kwargs)
.venv/lib/python3.7/site-packages/eth_tester/main.py:426: in call
    raw_result = self.backend.call(raw_transaction, raw_block_number)
.venv/lib/python3.7/site-packages/eth_tester/backends/pyevm/main.py:495: in call
    block_number,
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

chain = <eth_tester.backends.pyevm.main.setup_tester_chain.<locals>.MainnetTesterNoProofChain object at 0x103e7cc10>
transaction = <eth.vm.forks.constantinople.transactions.ConstantinopleTransaction object at 0x103f26050>, block_number = 'latest'

    def _execute_and_revert_transaction(chain, transaction, block_number="latest"):
        vm = _get_vm_for_block_number(chain, block_number)

        state = vm.state
        snapshot = state.snapshot()
>       computation = state.execute_transaction(transaction)
E       AttributeError: 'ConstantinopleState' object has no attribute 'execute_transaction'

.venv/lib/python3.7/site-packages/eth_tester/backends/pyevm/main.py:236: AttributeError
============================================================ 1 failed in 0.97s =============================================================

How can it be fixed?

I don't know.

arjunaskykok commented 5 years ago

I found the thing that caused this issue. The execute_transaction is removed in a commit in py-evm project: https://github.com/ethereum/py-evm/commit/19923689e8bac1191da5e9667ccc6ff0a1a9692f#diff-2d5d99f4dd8df9b29c7486b27678f9fb

The replacement is apply_transaction method. Fixing this issue is easy. Creating test is a little bit confusing.