Skip to content

Instantly share code, notes, and snippets.

@jambestwick
Created January 30, 2022 05:30
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save jambestwick/e3ae024aa4231eacb70a41ac6f284880 to your computer and use it in GitHub Desktop.
Save jambestwick/e3ae024aa4231eacb70a41ac6f284880 to your computer and use it in GitHub Desktop.
Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.8.7+commit.e28d00a7.js&optimize=false&runs=200&gist=
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.4.22 <0.9.0;
library TestsAccounts {
function getAccount(uint index) pure public returns (address) {
address[15] memory accounts;
accounts[0] = 0x5B38Da6a701c568545dCfcB03FcB875f56beddC4;
accounts[1] = 0xAb8483F64d9C6d1EcF9b849Ae677dD3315835cb2;
accounts[2] = 0x4B20993Bc481177ec7E8f571ceCaE8A9e22C02db;
accounts[3] = 0x78731D3Ca6b7E34aC0F824c42a7cC18A495cabaB;
accounts[4] = 0x617F2E2fD72FD9D5503197092aC168c91465E7f2;
accounts[5] = 0x17F6AD8Ef982297579C203069C1DbfFE4348c372;
accounts[6] = 0x5c6B0f7Bf3E7ce046039Bd8FABdfD3f9F5021678;
accounts[7] = 0x03C6FcED478cBbC9a4FAB34eF9f40767739D1Ff7;
accounts[8] = 0x1aE0EA34a72D944a8C7603FfB3eC30a6669E454C;
accounts[9] = 0x0A098Eda01Ce92ff4A4CCb7A4fFFb5A43EBC70DC;
accounts[10] = 0xCA35b7d915458EF540aDe6068dFe2F44E8fa733c;
accounts[11] = 0x14723A09ACff6D2A60DcdF7aA4AFf308FDDC160C;
accounts[12] = 0x4B0897b0513fdC7C541B6d9D7E929C4e5364D2dB;
accounts[13] = 0x583031D1113aD414F02576BD6afaBfb302140225;
accounts[14] = 0xdD870fA1b7C4700F2BD7f44238821C26f7392148;
return accounts[index];
}
}
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.4.22 <0.9.0;
library Assert {
event AssertionEvent(
bool passed,
string message,
string methodName
);
event AssertionEventUint(
bool passed,
string message,
string methodName,
uint256 returned,
uint256 expected
);
event AssertionEventInt(
bool passed,
string message,
string methodName,
int256 returned,
int256 expected
);
event AssertionEventBool(
bool passed,
string message,
string methodName,
bool returned,
bool expected
);
event AssertionEventAddress(
bool passed,
string message,
string methodName,
address returned,
address expected
);
event AssertionEventBytes32(
bool passed,
string message,
string methodName,
bytes32 returned,
bytes32 expected
);
event AssertionEventString(
bool passed,
string message,
string methodName,
string returned,
string expected
);
event AssertionEventUintInt(
bool passed,
string message,
string methodName,
uint256 returned,
int256 expected
);
event AssertionEventIntUint(
bool passed,
string message,
string methodName,
int256 returned,
uint256 expected
);
function ok(bool a, string memory message) public returns (bool result) {
result = a;
emit AssertionEvent(result, message, "ok");
}
function equal(uint256 a, uint256 b, string memory message) public returns (bool result) {
result = (a == b);
emit AssertionEventUint(result, message, "equal", a, b);
}
function equal(int256 a, int256 b, string memory message) public returns (bool result) {
result = (a == b);
emit AssertionEventInt(result, message, "equal", a, b);
}
function equal(bool a, bool b, string memory message) public returns (bool result) {
result = (a == b);
emit AssertionEventBool(result, message, "equal", a, b);
}
// TODO: only for certain versions of solc
//function equal(fixed a, fixed b, string message) public returns (bool result) {
// result = (a == b);
// emit AssertionEvent(result, message);
//}
// TODO: only for certain versions of solc
//function equal(ufixed a, ufixed b, string message) public returns (bool result) {
// result = (a == b);
// emit AssertionEvent(result, message);
//}
function equal(address a, address b, string memory message) public returns (bool result) {
result = (a == b);
emit AssertionEventAddress(result, message, "equal", a, b);
}
function equal(bytes32 a, bytes32 b, string memory message) public returns (bool result) {
result = (a == b);
emit AssertionEventBytes32(result, message, "equal", a, b);
}
function equal(string memory a, string memory b, string memory message) public returns (bool result) {
result = (keccak256(abi.encodePacked(a)) == keccak256(abi.encodePacked(b)));
emit AssertionEventString(result, message, "equal", a, b);
}
function notEqual(uint256 a, uint256 b, string memory message) public returns (bool result) {
result = (a != b);
emit AssertionEventUint(result, message, "notEqual", a, b);
}
function notEqual(int256 a, int256 b, string memory message) public returns (bool result) {
result = (a != b);
emit AssertionEventInt(result, message, "notEqual", a, b);
}
function notEqual(bool a, bool b, string memory message) public returns (bool result) {
result = (a != b);
emit AssertionEventBool(result, message, "notEqual", a, b);
}
// TODO: only for certain versions of solc
//function notEqual(fixed a, fixed b, string message) public returns (bool result) {
// result = (a != b);
// emit AssertionEvent(result, message);
//}
// TODO: only for certain versions of solc
//function notEqual(ufixed a, ufixed b, string message) public returns (bool result) {
// result = (a != b);
// emit AssertionEvent(result, message);
//}
function notEqual(address a, address b, string memory message) public returns (bool result) {
result = (a != b);
emit AssertionEventAddress(result, message, "notEqual", a, b);
}
function notEqual(bytes32 a, bytes32 b, string memory message) public returns (bool result) {
result = (a != b);
emit AssertionEventBytes32(result, message, "notEqual", a, b);
}
function notEqual(string memory a, string memory b, string memory message) public returns (bool result) {
result = (keccak256(abi.encodePacked(a)) != keccak256(abi.encodePacked(b)));
emit AssertionEventString(result, message, "notEqual", a, b);
}
/*----------------- Greater than --------------------*/
function greaterThan(uint256 a, uint256 b, string memory message) public returns (bool result) {
result = (a > b);
emit AssertionEventUint(result, message, "greaterThan", a, b);
}
function greaterThan(int256 a, int256 b, string memory message) public returns (bool result) {
result = (a > b);
emit AssertionEventInt(result, message, "greaterThan", a, b);
}
// TODO: safely compare between uint and int
function greaterThan(uint256 a, int256 b, string memory message) public returns (bool result) {
if(b < int(0)) {
// int is negative uint "a" always greater
result = true;
} else {
result = (a > uint(b));
}
emit AssertionEventUintInt(result, message, "greaterThan", a, b);
}
function greaterThan(int256 a, uint256 b, string memory message) public returns (bool result) {
if(a < int(0)) {
// int is negative uint "b" always greater
result = false;
} else {
result = (uint(a) > b);
}
emit AssertionEventIntUint(result, message, "greaterThan", a, b);
}
/*----------------- Lesser than --------------------*/
function lesserThan(uint256 a, uint256 b, string memory message) public returns (bool result) {
result = (a < b);
emit AssertionEventUint(result, message, "lesserThan", a, b);
}
function lesserThan(int256 a, int256 b, string memory message) public returns (bool result) {
result = (a < b);
emit AssertionEventInt(result, message, "lesserThan", a, b);
}
// TODO: safely compare between uint and int
function lesserThan(uint256 a, int256 b, string memory message) public returns (bool result) {
if(b < int(0)) {
// int is negative int "b" always lesser
result = false;
} else {
result = (a < uint(b));
}
emit AssertionEventUintInt(result, message, "lesserThan", a, b);
}
function lesserThan(int256 a, uint256 b, string memory message) public returns (bool result) {
if(a < int(0)) {
// int is negative int "a" always lesser
result = true;
} else {
result = (uint(a) < b);
}
emit AssertionEventIntUint(result, message, "lesserThan", a, b);
}
}
REMIX EXAMPLE PROJECT
Remix example project is present when Remix loads very first time or there are no files existing in the File Explorer.
It contains 3 directories:
1. 'contracts': Holds three contracts with different complexity level, denoted with number prefix in file name.
2. 'scripts': Holds two scripts to deploy a contract. It is explained below.
3. 'tests': Contains one test file for 'Ballot' contract with unit tests in Solidity.
SCRIPTS
The 'scripts' folder contains example async/await scripts for deploying the 'Storage' contract.
For the deployment of any other contract, 'contractName' and 'constructorArgs' should be updated (along with other code if required).
Scripts have full access to the web3.js and ethers.js libraries.
To run a script, right click on file name in the file explorer and click 'Run'. Remember, Solidity file must already be compiled.
Output from script will appear in remix terminal.
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.7.0 <0.9.0;
/**
* @title Storage
* @dev Store & retrieve value in a variable
*/
contract Storage {
uint256 number;
/**
* @dev Store value in variable
* @param num value to store
*/
function store(uint256 num) public {
number = num;
}
/**
* @dev Return value
* @return value of 'number'
*/
function retrieve() public view returns (uint256){
return number;
}
}
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.7.0 <0.9.0;
/**
* @title Owner
* @dev Set & change owner
*/
contract Owner {
address private owner;
// event for EVM logging
event OwnerSet(address indexed oldOwner, address indexed newOwner);
// modifier to check if caller is owner
modifier isOwner() {
// If the first argument of 'require' evaluates to 'false', execution terminates and all
// changes to the state and to Ether balances are reverted.
// This used to consume all gas in old EVM versions, but not anymore.
// It is often a good idea to use 'require' to check if functions are called correctly.
// As a second argument, you can also provide an explanation about what went wrong.
require(msg.sender == owner, "Caller is not owner");
_;
}
/**
* @dev Set contract deployer as owner
*/
constructor() {
owner = msg.sender; // 'msg.sender' is sender of current call, contract deployer for a constructor
emit OwnerSet(address(0), owner);
}
/**
* @dev Change owner
* @param newOwner address of new owner
*/
function changeOwner(address newOwner) public isOwner {
emit OwnerSet(owner, newOwner);
owner = newOwner;
}
/**
* @dev Return owner address
* @return address of owner
*/
function getOwner() external view returns (address) {
return owner;
}
}
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.7.0 <0.9.0;
/**
* @title Ballot
* @dev Implements voting process along with vote delegation
*/
contract Ballot {
struct Voter {
uint weight; // weight is accumulated by delegation
bool voted; // if true, that person already voted
address delegate; // person delegated to
uint vote; // index of the voted proposal
}
struct Proposal {
// If you can limit the length to a certain number of bytes,
// always use one of bytes1 to bytes32 because they are much cheaper
bytes32 name; // short name (up to 32 bytes)
uint voteCount; // number of accumulated votes
}
address public chairperson;
mapping(address => Voter) public voters;
Proposal[] public proposals;
/**
* @dev Create a new ballot to choose one of 'proposalNames'.
* @param proposalNames names of proposals
*/
constructor(bytes32[] memory proposalNames) {
chairperson = msg.sender;
voters[chairperson].weight = 1;
for (uint i = 0; i < proposalNames.length; i++) {
// 'Proposal({...})' creates a temporary
// Proposal object and 'proposals.push(...)'
// appends it to the end of 'proposals'.
proposals.push(Proposal({
name: proposalNames[i],
voteCount: 0
}));
}
}
/**
* @dev Give 'voter' the right to vote on this ballot. May only be called by 'chairperson'.
* @param voter address of voter
*/
function giveRightToVote(address voter) public {
require(
msg.sender == chairperson,
"Only chairperson can give right to vote."
);
require(
!voters[voter].voted,
"The voter already voted."
);
require(voters[voter].weight == 0);
voters[voter].weight = 1;
}
/**
* @dev Delegate your vote to the voter 'to'.
* @param to address to which vote is delegated
*/
function delegate(address to) public {
Voter storage sender = voters[msg.sender];
require(!sender.voted, "You already voted.");
require(to != msg.sender, "Self-delegation is disallowed.");
while (voters[to].delegate != address(0)) {
to = voters[to].delegate;
// We found a loop in the delegation, not allowed.
require(to != msg.sender, "Found loop in delegation.");
}
sender.voted = true;
sender.delegate = to;
Voter storage delegate_ = voters[to];
if (delegate_.voted) {
// If the delegate already voted,
// directly add to the number of votes
proposals[delegate_.vote].voteCount += sender.weight;
} else {
// If the delegate did not vote yet,
// add to her weight.
delegate_.weight += sender.weight;
}
}
/**
* @dev Give your vote (including votes delegated to you) to proposal 'proposals[proposal].name'.
* @param proposal index of proposal in the proposals array
*/
function vote(uint proposal) public {
Voter storage sender = voters[msg.sender];
require(sender.weight != 0, "Has no right to vote");
require(!sender.voted, "Already voted.");
sender.voted = true;
sender.vote = proposal;
// If 'proposal' is out of the range of the array,
// this will throw automatically and revert all
// changes.
proposals[proposal].voteCount += sender.weight;
}
/**
* @dev Computes the winning proposal taking all previous votes into account.
* @return winningProposal_ index of winning proposal in the proposals array
*/
function winningProposal() public view
returns (uint winningProposal_)
{
uint winningVoteCount = 0;
for (uint p = 0; p < proposals.length; p++) {
if (proposals[p].voteCount > winningVoteCount) {
winningVoteCount = proposals[p].voteCount;
winningProposal_ = p;
}
}
}
/**
* @dev Calls winningProposal() function to get the index of the winner contained in the proposals array and then
* @return winnerName_ the name of the winner
*/
function winnerName() public view
returns (bytes32 winnerName_)
{
winnerName_ = proposals[winningProposal()].name;
}
}
// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
// WARNING: There is a known vuln contained within this contract related to vote delegation,
// it's NOT recommmended to use this in production.
// SushiToken with Governance.
contract SushiToken is ERC20("SushiToken", "SUSHI"), Ownable {
/// @notice Creates `_amount` token to `_to`. Must only be called by the owner (MasterChef).
function mint(address _to, uint256 _amount) public onlyOwner {
_mint(_to, _amount);
_moveDelegates(address(0), _delegates[_to], _amount);
}
// Copied and modified from YAM code:
// https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernanceStorage.sol
// https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernance.sol
// Which is copied and modified from COMPOUND:
// https://github.com/compound-finance/compound-protocol/blob/master/contracts/Governance/Comp.sol
/// @notice A record of each accounts delegate
mapping (address => address) internal _delegates;
/// @notice A checkpoint for marking number of votes from a given block
struct Checkpoint {
uint32 fromBlock;
uint256 votes;
}
/// @notice A record of votes checkpoints for each account, by index
mapping (address => mapping (uint32 => Checkpoint)) public checkpoints;
/// @notice The number of checkpoints for each account
mapping (address => uint32) public numCheckpoints;
/// @notice The EIP-712 typehash for the contract's domain
bytes32 public constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)");
/// @notice The EIP-712 typehash for the delegation struct used by the contract
bytes32 public constant DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)");
/// @notice A record of states for signing / validating signatures
mapping (address => uint) public nonces;
/// @notice An event thats emitted when an account changes its delegate
event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);
/// @notice An event thats emitted when a delegate account's vote balance changes
event DelegateVotesChanged(address indexed delegate, uint previousBalance, uint newBalance);
/**
* @notice Delegate votes from `msg.sender` to `delegatee`
* @param delegator The address to get delegatee for
*/
function delegates(address delegator)
external
view
returns (address)
{
return _delegates[delegator];
}
/**
* @notice Delegate votes from `msg.sender` to `delegatee`
* @param delegatee The address to delegate votes to
*/
function delegate(address delegatee) external {
return _delegate(msg.sender, delegatee);
}
/**
* @notice Delegates votes from signatory to `delegatee`
* @param delegatee The address to delegate votes to
* @param nonce The contract state required to match the signature
* @param expiry The time at which to expire the signature
* @param v The recovery byte of the signature
* @param r Half of the ECDSA signature pair
* @param s Half of the ECDSA signature pair
*/
function delegateBySig(
address delegatee,
uint nonce,
uint expiry,
uint8 v,
bytes32 r,
bytes32 s
)
external
{
bytes32 domainSeparator = keccak256(
abi.encode(
DOMAIN_TYPEHASH,
keccak256(bytes(name())),
getChainId(),
address(this)
)
);
bytes32 structHash = keccak256(
abi.encode(
DELEGATION_TYPEHASH,
delegatee,
nonce,
expiry
)
);
bytes32 digest = keccak256(
abi.encodePacked(
"\x19\x01",
domainSeparator,
structHash
)
);
address signatory = ecrecover(digest, v, r, s);
require(signatory != address(0), "SUSHI::delegateBySig: invalid signature");
require(nonce == nonces[signatory]++, "SUSHI::delegateBySig: invalid nonce");
require(now <= expiry, "SUSHI::delegateBySig: signature expired");
return _delegate(signatory, delegatee);
}
/**
* @notice Gets the current votes balance for `account`
* @param account The address to get votes balance
* @return The number of current votes for `account`
*/
function getCurrentVotes(address account)
external
view
returns (uint256)
{
uint32 nCheckpoints = numCheckpoints[account];
return nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0;
}
/**
* @notice Determine the prior number of votes for an account as of a block number
* @dev Block number must be a finalized block or else this function will revert to prevent misinformation.
* @param account The address of the account to check
* @param blockNumber The block number to get the vote balance at
* @return The number of votes the account had as of the given block
*/
function getPriorVotes(address account, uint blockNumber)
external
view
returns (uint256)
{
require(blockNumber < block.number, "SUSHI::getPriorVotes: not yet determined");
uint32 nCheckpoints = numCheckpoints[account];
if (nCheckpoints == 0) {
return 0;
}
// First check most recent balance
if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) {
return checkpoints[account][nCheckpoints - 1].votes;
}
// Next check implicit zero balance
if (checkpoints[account][0].fromBlock > blockNumber) {
return 0;
}
uint32 lower = 0;
uint32 upper = nCheckpoints - 1;
while (upper > lower) {
uint32 center = upper - (upper - lower) / 2; // ceil, avoiding overflow
Checkpoint memory cp = checkpoints[account][center];
if (cp.fromBlock == blockNumber) {
return cp.votes;
} else if (cp.fromBlock < blockNumber) {
lower = center;
} else {
upper = center - 1;
}
}
return checkpoints[account][lower].votes;
}
function _delegate(address delegator, address delegatee)
internal
{
address currentDelegate = _delegates[delegator];
uint256 delegatorBalance = balanceOf(delegator); // balance of underlying SUSHIs (not scaled);
_delegates[delegator] = delegatee;
emit DelegateChanged(delegator, currentDelegate, delegatee);
_moveDelegates(currentDelegate, delegatee, delegatorBalance);
}
function _moveDelegates(address srcRep, address dstRep, uint256 amount) internal {
if (srcRep != dstRep && amount > 0) {
if (srcRep != address(0)) {
// decrease old representative
uint32 srcRepNum = numCheckpoints[srcRep];
uint256 srcRepOld = srcRepNum > 0 ? checkpoints[srcRep][srcRepNum - 1].votes : 0;
uint256 srcRepNew = srcRepOld.sub(amount);
_writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew);
}
if (dstRep != address(0)) {
// increase new representative
uint32 dstRepNum = numCheckpoints[dstRep];
uint256 dstRepOld = dstRepNum > 0 ? checkpoints[dstRep][dstRepNum - 1].votes : 0;
uint256 dstRepNew = dstRepOld.add(amount);
_writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew);
}
}
}
function _writeCheckpoint(
address delegatee,
uint32 nCheckpoints,
uint256 oldVotes,
uint256 newVotes
)
internal
{
uint32 blockNumber = safe32(block.number, "SUSHI::_writeCheckpoint: block number exceeds 32 bits");
if (nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber) {
checkpoints[delegatee][nCheckpoints - 1].votes = newVotes;
} else {
checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber, newVotes);
numCheckpoints[delegatee] = nCheckpoints + 1;
}
emit DelegateVotesChanged(delegatee, oldVotes, newVotes);
}
function safe32(uint n, string memory errorMessage) internal pure returns (uint32) {
require(n < 2**32, errorMessage);
return uint32(n);
}
function getChainId() internal pure returns (uint) {
uint256 chainId;
assembly { chainId := chainid() }
return chainId;
}
}
// this line is added to create a gist. Empty file is not allowed.
// this line is added to create a gist. Empty file is not allowed.
// this line is added to create a gist. Empty file is not allowed.
pragma solidity ^0.5.2;
import "../Roles.sol";
/**
* @title WhitelistAdminRole
* @dev WhitelistAdmins are responsible for assigning and removing Whitelisted accounts.
*/
contract WhitelistAdminRole {
using Roles for Roles.Role;
event WhitelistAdminAdded(address indexed account);
event WhitelistAdminRemoved(address indexed account);
Roles.Role private _whitelistAdmins;
constructor () internal {
_addWhitelistAdmin(msg.sender);
}
modifier onlyWhitelistAdmin() {
require(isWhitelistAdmin(msg.sender));
_;
}
function isWhitelistAdmin(address account) public view returns (bool) {
return _whitelistAdmins.has(account);
}
function addWhitelistAdmin(address account) public onlyWhitelistAdmin {
_addWhitelistAdmin(account);
}
function renounceWhitelistAdmin() public {
_removeWhitelistAdmin(msg.sender);
}
function _addWhitelistAdmin(address account) internal {
_whitelistAdmins.add(account);
emit WhitelistAdminAdded(account);
}
function _removeWhitelistAdmin(address account) internal {
_whitelistAdmins.remove(account);
emit WhitelistAdminRemoved(account);
}
}
// Right click on the script name and hit "Run" to execute
(async () => {
try {
console.log('Running deployWithEthers script...')
const contractName = 'Storage' // Change this for other contract
const constructorArgs = [] // Put constructor args (if any) here for your contract
// Note that the script needs the ABI which is generated from the compilation artifact.
// Make sure contract is compiled and artifacts are generated
const artifactsPath = `browser/contracts/artifacts/${contractName}.json` // Change this for different path
const metadata = JSON.parse(await remix.call('fileManager', 'getFile', artifactsPath))
// 'web3Provider' is a remix global variable object
const signer = (new ethers.providers.Web3Provider(web3Provider)).getSigner()
let factory = new ethers.ContractFactory(metadata.abi, metadata.data.bytecode.object, signer);
let contract = await factory.deploy(...constructorArgs);
console.log('Contract Address: ', contract.address);
// The contract is NOT deployed yet; we must wait until it is mined
await contract.deployed()
console.log('Deployment successful.')
} catch (e) {
console.log(e.message)
}
})()
// Right click on the script name and hit "Run" to execute
(async () => {
try {
console.log('Running deployWithWeb3 script...')
const contractName = 'Storage' // Change this for other contract
const constructorArgs = [] // Put constructor args (if any) here for your contract
// Note that the script needs the ABI which is generated from the compilation artifact.
// Make sure contract is compiled and artifacts are generated
const artifactsPath = `browser/contracts/artifacts/${contractName}.json` // Change this for different path
const metadata = JSON.parse(await remix.call('fileManager', 'getFile', artifactsPath))
const accounts = await web3.eth.getAccounts()
let contract = new web3.eth.Contract(metadata.abi)
contract = contract.deploy({
data: metadata.data.bytecode.object,
arguments: constructorArgs
})
const newContractInstance = await contract.send({
from: accounts[0],
gas: 1500000,
gasPrice: '30000000000'
})
console.log('Contract deployed at address: ', newContractInstance.options.address)
} catch (e) {
console.log(e.message)
}
})()
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.7.0 <0.9.0;
import "remix_tests.sol"; // this import is automatically injected by Remix.
import "../contracts/3_Ballot.sol";
contract BallotTest {
bytes32[] proposalNames;
Ballot ballotToTest;
function beforeAll () public {
proposalNames.push(bytes32("candidate1"));
ballotToTest = new Ballot(proposalNames);
}
function checkWinningProposal () public {
ballotToTest.vote(0);
Assert.equal(ballotToTest.winningProposal(), uint(0), "proposal at index 0 should be the winning proposal");
Assert.equal(ballotToTest.winnerName(), bytes32("candidate1"), "candidate1 should be the winner name");
}
function checkWinninProposalWithReturnValue () public view returns (bool) {
return ballotToTest.winningProposal() == 0;
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment