Static Analyzer for Solidity
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slither/tests/tools/read-storage/test_read_storage.py

92 lines
3.2 KiB

import re
import json
from pathlib import Path
import pytest
from deepdiff import DeepDiff
from web3.contract import Contract
from slither import Slither
from slither.tools.read_storage import SlitherReadStorage, RpcInfo
TEST_DATA_DIR = Path(__file__).resolve().parent / "test_data"
def get_source_file(file_path) -> str:
with open(file_path, "r", encoding="utf8") as f:
source = f.read()
return source
def deploy_contract(w3, ganache, contract_bin, contract_abi) -> Contract:
"""Deploy contract to the local ganache network"""
signed_txn = w3.eth.account.sign_transaction(
dict(
nonce=w3.eth.get_transaction_count(ganache.eth_address),
maxFeePerGas=20000000000,
maxPriorityFeePerGas=1,
gas=15000000,
to=b"",
data="0x" + contract_bin,
chainId=1,
),
ganache.eth_privkey,
)
tx_hash = w3.eth.send_raw_transaction(signed_txn.rawTransaction)
address = w3.eth.get_transaction_receipt(tx_hash)["contractAddress"]
contract = w3.eth.contract(address, abi=contract_abi)
return contract
# pylint: disable=too-many-locals
@pytest.mark.parametrize(
"test_contract, storage_file",
[("StorageLayout", "storage_layout"), ("UnstructuredStorageLayout", "unstructured_storage")],
)
@pytest.mark.usefixtures("web3", "ganache")
def test_read_storage(test_contract, storage_file, web3, ganache, solc_binary_path) -> None:
solc_path = solc_binary_path(version="0.8.10")
assert web3.is_connected()
bin_path = Path(TEST_DATA_DIR, f"{test_contract}.bin").as_posix()
abi_path = Path(TEST_DATA_DIR, f"{test_contract}.abi").as_posix()
bytecode = get_source_file(bin_path)
abi = get_source_file(abi_path)
contract = deploy_contract(web3, ganache, bytecode, abi)
contract.functions.store().transact({"from": ganache.eth_address})
address = contract.address
sl = Slither(Path(TEST_DATA_DIR, f"{test_contract}.sol").as_posix(), solc=solc_path)
contracts = sl.contracts
rpc_info: RpcInfo = RpcInfo(ganache.provider)
srs = SlitherReadStorage(contracts, 100, rpc_info)
srs.unstructured = True
srs.storage_address = address
srs.get_all_storage_variables()
srs.get_storage_layout()
srs.walk_slot_info(srs.get_slot_values)
actual_file = Path(TEST_DATA_DIR, "storage_layout.json").as_posix()
with open(actual_file, "w", encoding="utf-8") as file:
slot_infos_json = srs.to_json()
json.dump(slot_infos_json, file, indent=4)
expected_file = Path(TEST_DATA_DIR, f"TEST_{storage_file}.json").as_posix()
with open(expected_file, "r", encoding="utf8") as f:
expected = json.load(f)
with open(actual_file, "r", encoding="utf8") as f:
actual = json.load(f)
diff = DeepDiff(expected, actual, ignore_order=True, verbose_level=2, view="tree")
if diff:
for change in diff.get("values_changed", []):
path_list = re.findall(r"\['(.*?)'\]", change.path())
path = "_".join(path_list)
with open(f"{path}_expected.txt", "w", encoding="utf8") as f:
f.write(str(change.t1))
with open(f"{path}_actual.txt", "w", encoding="utf8") as f:
f.write(str(change.t2))
assert not diff