Last active
September 28, 2017 21:12
-
-
Save SerpentChris/369e13c8bd58cf0149ced01fd3d91860 to your computer and use it in GitHub Desktop.
Using ethereum.tester with Solidity
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # Copyright (c) 2017 Christian Calderon | |
| # | |
| # Permission is hereby granted, free of charge, to any person obtaining a copy | |
| # of this software and associated documentation files (the "Software"), to deal | |
| # in the Software without restriction, including without limitation the rights | |
| # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| # copies of the Software, and to permit persons to whom the Software is | |
| # furnished to do so, subject to the following conditions: | |
| # | |
| # The above copyright notice and this permission notice shall be included in all | |
| # copies or substantial portions of the Software. | |
| # | |
| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| # SOFTWARE. | |
| import ethereum.tools.tester as tester | |
| from ethereum.tools.tester import Chain, ABIContract | |
| import subprocess | |
| import os | |
| import json | |
| import binascii | |
| def sol_compile(code_path: str, *, optimized: bool=False, chain: Chain = None, creator: bytes = None) -> ABIContract: | |
| """Compiles a Solidity file and returns an ABIContract to use for testing. | |
| Argument: | |
| code_path -- str -- the path to the source file. | |
| Keyword Arguments: | |
| optimized -- bool -- tell the compiler to produce an optimized binary. Default is False. | |
| chain -- Chain -- reuse a Chain object by providing it here. Default behavior creates a new Chain object. | |
| creator -- bytes -- The private key to use for contract creation. Defaults to tester.k0. | |
| """ | |
| if chain is None: | |
| chain = Chain() | |
| if creator is None: | |
| creator = tester.k0 | |
| code_path = os.path.abspath(code_path) | |
| solc_args = ['solc', code_path, '--bin', '--abi'] | |
| if optimized: | |
| solc_args.append('--optimize') | |
| output = subprocess.run(solc_args, check=True, stdout=subprocess.PIPE).stdout.decode() | |
| EVM_TAG = 'Binary: \n' | |
| ABI_TAG = 'Contract JSON ABI \n' | |
| evm_start = output.find(EVM_TAG) + len(EVM_TAG) | |
| evm_end = output.find(ABI_TAG) | |
| abi_start = evm_end + len(ABI_TAG) | |
| evm = binascii.unhexlify(output[evm_start:evm_end].strip()) | |
| abi = json.loads(output[abi_start:].strip()) | |
| addr = chain.contract(evm, language='evm', sender=creator) | |
| return ABIContract(chain, abi, addr) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment