def __init__(self):
max_deploy_gas = 0
# Initialize web3 object
web3 = Web3(HTTPProvider('http://localhost:8545')) #Ganache default host + port
# Path for Solidity source files
contract_dir = os.path.abspath('./contracts')
# Initialize interface
interface = ContractInterface(web3, 'TEST', contract_dir)
# Compile contracts & deploy
interface.compile_source_files()
interface.deploy_contract()
# Estimate gas usage. Can be used to deploy if it's below X value
# TODO What class is this in?
deployment_estimate = deployment.constructor().estimateGas(transaction = deployment_params)
if deployment_estimate < self.max_deploy_gas:
tx_hash = deployment.constructor().transact(transaction = deployment_params)
tx_receipt = self.web3.eth.waitForTransactionReceipt(tx_hash)
contract_address = tx_receipt['contractAddress']
vars = {
'contract_address': contract_address,
'contract_abi': deployment_compiled['abi']
}
class TestInterface(unittest.TestCase):
def setUp(self):
# Set blockcahin provider
self.w3 = Web3(HTTPProvider('http://10.10.10.61:7545'))
self.contract_dir = os.path.abspath('./contracts/')
self.greeter_interface = ContractInterface(self.w3, 'Greeter',
self.contract_dir)
def test_1_init(self):
self.assertEqual(self.greeter_interface.web3.eth.defaultAccount,
self.w3.eth.accounts[0],
'Default account not set correctly')
def test_2_compile(self):
self.greeter_interface.compile_source_files()
self.assertEqual(len(self.greeter_interface.all_compiled_contracts), 3)
def test_3_deploy(self):
self.greeter_interface.deploy_contract()
self.assertTrue(
os.path.isfile(self.greeter_interface.deployment_vars_path))
def test_4_get_instance(self):
self.greeter_interface.get_instance()
self.assertEqual(self.greeter_interface.contract_instance.address,
self.greeter_interface.contract_address)
def test_5_change_greeting(self):
event = 'GreetingChange'
new_greeting = 'Hola'.encode('utf-8')
expected_logs = {
'changer': self.w3.eth.accounts[0],
'_from': 'Hello',
'_to': new_greeting,
'event': event
}
self.greeter_interface.get_instance()
receipt, indexed_events = self.greeter_interface.send('setGreeting',
new_greeting,
event=event)
self.assertTrue(receipt['blockNumber'] > 0)
self.assertEqual(
indexed_events['changer'], expected_logs['changer'],
"Logging output for {} inconsistent".format('changer'))
self.assertEqual(indexed_events['_from'], expected_logs['_from'],
"Logging output for {} inconsistent".format('_from'))
self.assertEqual(
indexed_events['changer'], expected_logs['changer'],
"Logging output for {} inconsistent".format('changer'))
def test_6_call_greeting(self):
expected_greeting = 'Hola'
# Although the test suite starts with a clean state, the test above
# changes the contract's greeting on the blockchain, which is what
# is fetched.
self.greeter_interface.get_instance()
actual_greeting = self.greeter_interface.retrieve('greeting')
self.assertEqual(expected_greeting, actual_greeting,
'Unexpected greeting returned')
def load_contracts():
contract_dir = PATH + "/deployment_vars"
deploy_dir = PATH + "/deployment_vars"
# setup fake stablecoin
path = PATH + "/contracts/TestContracts.sol:FakeUSD"
StableCoin = ContractInterface(
w3, path, contract_dir, deployment_vars_path=deploy_dir
)
StableCoin.deploy_contract(path)
# setup price feed
path = PATH + "/contracts/TestContracts.sol:FakePriceProvider"
PriceProvider = ContractInterface(
w3, path, contract_dir, deployment_vars_path=deploy_dir
)
PriceProvider.deploy_contract(path, [20000000000])
# setup exchange
path = PATH + "/contracts/TestContracts.sol:FakeExchange"
Exchange = ContractInterface(
w3, path, contract_dir, deployment_vars_path=deploy_dir
)
Exchange.deploy_contract(
path,
[PriceProvider.vars["contract_address"], StableCoin.vars["contract_address"]],
)
# setup CallOptions
path = PATH + "/contracts/HegicCallOptions.sol:HegicCallOptions"
HegicCallOptions = ContractInterface(
w3, path, contract_dir, deployment_vars_path=deploy_dir
)
HegicCallOptions.deploy_contract(path, [PriceProvider.vars["contract_address"]])
# setup PutOptions
path = PATH + "/contracts/HegicPutOptions.sol:HegicPutOptions"
HegicPutOptions = ContractInterface(
w3, path, contract_dir, deployment_vars_path=deploy_dir
)
HegicPutOptions.deploy_contract(
path,
[
StableCoin.vars["contract_address"],
PriceProvider.vars["contract_address"],
Exchange.vars["contract_address"],
],
)
# setupERCPool
path = PATH + "/contracts/HegicERCPool.sol:HegicERCPool"
HegicERCPool = ContractInterface(
w3, path, contract_dir, deployment_vars_path=deploy_dir
)
HegicERCPool.deploy_contract(path, [StableCoin.vars["contract_address"]])
# setupETHPool
path = PATH + "/contracts/HegicETHPool.sol:HegicETHPool"
HegicETHPool = ContractInterface(
w3, path, contract_dir, deployment_vars_path=deploy_dir
)
HegicETHPool.deploy_contract(path, [StableCoin.vars["contract_address"]])
print("All Deployed!")
return {
"StableCoin": StableCoin,
"PriceFeed": PriceProvider,
"Exchange": Exchange,
"HegicCallOptions": HegicCallOptions,
"HegicPutOptions": HegicPutOptions,
"HegicERCPool": HegicERCPool,
"HegicETHPool": HegicETHPool,
}
from web3 import Web3, HTTPProvider
from interface import ContractInterface
# Initialize your web3 object
w3 = Web3(HTTPProvider('http://127.0.0.1:8545'))
ser = serial.Serial('/dev/ttyUSB1', 115200)
ser.flushInput()
print("from:", w3.eth.accounts[0])
# Create a path object to your Solidity source files
contract_dir = os.path.abspath('./contracts/')
greeter_interface = ContractInterface(w3, 'Greeter', contract_dir)
# Initialize your interface
greeter_interface.compile_source_files()
greeter_interface.deploy_contract()
instance = greeter_interface.get_instance()
def strToHex32(zBytes):
len1 = len(zBytes)
if len1 > 32:
zBytes32 = zBytes[:32]
else:
zBytes32 = zBytes.ljust(32, '0')
return bytes(zBytes32, 'utf-8')
while True:
ser_bytes = ser.readline()
# -*- coding: utf-8 -*-
"""
Created on Sun Mar 1 17:06:31 2020
@author: peter
"""
import os
from web3 import Web3, HTTPProvider
from interface import ContractInterface
w3 = Web3(HTTPProvider("http://127.0.0.1:8545"))
contractDir = os.path.abspath("./contracts/")
soapBoxInterface = ContractInterface(w3, "SoapBox", contractDir)
soapBoxInterface.compile_source_files()
soapBoxInterface.deploy_contract()
instance = soapBoxInterface.get_instance()
print("before we pay:",
instance.functions.isApproved(w3.eth.accounts[0]).call())
instance.functions.pay().transact({'value': w3.toWei(0.03, 'ether')})
print("after we pay:",
instance.functions.isApproved(w3.eth.accounts[0]).call())
instance.functions.broadcastOpinion(
'You can never be overdressed or overeducated.').transact()
print(instance.functions.getCurrentOpinion().call())