def approval_function(token: ERC20Token, spender_address: Address, spender_name: str):
address_to_check = kwargs['from_address'] if 'from_address' in kwargs else Address(
token.web3.eth.defaultAccount)
move_contract = Contract._get_contract(web3=token.web3, abi=move_abi, address=token.address)
if move_contract.call().can(address_to_check.address, spender_address.address) is False:
logger = logging.getLogger()
logger.info(f"Approving {spender_name} ({spender_address}) to move our {token.address} directly")
if not move_contract.functions.hope(spender_address.address).transact(**kwargs):
raise RuntimeError("Approval failed!")
def setup_method(self):
# Use Ganache docker container
self.web3 = Web3(HTTPProvider("http://0.0.0.0:8555"))
self.web3.eth.defaultAccount = Web3.toChecksumAddress(
"0x9596C16D7bF9323265C2F2E22f43e6c80eB3d943")
self.our_address = Address(self.web3.eth.defaultAccount)
self.private_key = "0x91cf2cc3671a365fcbf38010ff97ee31a5b7e674842663c56769e41600696ead"
register_private_key(self.web3, self.private_key)
self.weth_address = Contract._deploy(self.web3, self.weth_abi,
self.weth_bin, [])
self.factory_address = Contract._deploy(self.web3, self.factory_abi,
self.factory_bin,
[self.our_address.address])
self.router_address = Contract._deploy(
self.web3, self.router_abi, self.router_bin,
[self.factory_address.address, self.weth_address.address])
self._weth_contract = Contract._get_contract(self.web3, self.weth_abi,
self.weth_address)
self.deploy_tokens()
token_config = {
"tokens": {
"DAI": {
"tokenAddress": self.ds_dai.address.address
},
"KEEP": {
"tokenAddress": self.ds_keep.address.address
},
"LEV": {
"tokenAddress": self.ds_lev.address.address,
"tokenDecimals": 9
},
"USDC": {
"tokenAddress": self.ds_usdc.address.address,
"tokenDecimals": 6
},
"WBTC": {
"tokenAddress": self.ds_wbtc.address.address,
"tokenDecimals": 8
},
"WETH": {
"tokenAddress": self.weth_address.address
}
}
}
# write token config with locally deployed addresses to file
with open("test-token-config.json", "w+") as outfile:
outfile.write(json.dumps(token_config))
def setup_method(self):
# Use Ganache docker container
self.web3 = Web3(HTTPProvider("http://0.0.0.0:8555"))
self.web3.eth.defaultAccount = Web3.toChecksumAddress(
"0x9596C16D7bF9323265C2F2E22f43e6c80eB3d943")
self.our_address = Address(self.web3.eth.defaultAccount)
self.private_key = "0x91cf2cc3671a365fcbf38010ff97ee31a5b7e674842663c56769e41600696ead"
register_private_key(self.web3, self.private_key)
self.weth_address = Contract._deploy(self.web3, self.weth_abi,
self.weth_bin, [])
self.factory_address = Contract._deploy(self.web3, self.factory_abi,
self.factory_bin,
[self.our_address.address])
self.router_address = Contract._deploy(
self.web3, self.router_abi, self.router_bin,
[self.factory_address.address, self.weth_address.address])
self._weth_contract = Contract._get_contract(self.web3, self.weth_abi,
self.weth_address)
self.ds_dai = DSToken.deploy(self.web3, 'DAI')
self.ds_dai.mint(
Wad.from_number(500)).transact(from_address=self.our_address)
self.token_dai = Token("DAI", self.ds_dai.address, 18)
self.token_weth = Token("WETH", self.weth_address, 18)
token_config = {
"tokens": {
"DAI": {
"tokenAddress": self.ds_dai.address.address
},
"WETH": {
"tokenAddress": self.weth_address.address
}
}
}
# write token config with locally deployed addresses to file
with open("test-token-config.json", "w+") as outfile:
outfile.write(json.dumps(token_config))