8c40a5b275
* Add Create2 library (#1744) * feat(contracts): Add Create2 library to use create2 evm opcode * Upgrade sol-coverage * Add changelog entry * Update comments and code style * Remove create2 helper * Fix linter error * Fix truffle dependency * Fix linter error * refactor(Create2): Remove _deploy internal function * test(Create2): test Create2 with inline assembly code * fix(Create2): Check address returned form create2 instead of codesize of created contract * refactor(Create2):Add revert reason when Create2 deploy fails (#2062) * fix merge with master * fix test Co-authored-by: Augusto Lemble <me@augustol.com>
72 lines
2.8 KiB
JavaScript
72 lines
2.8 KiB
JavaScript
const { contract, accounts, web3 } = require('@openzeppelin/test-environment');
|
|
const { BN, expectRevert } = require('@openzeppelin/test-helpers');
|
|
|
|
const { expect } = require('chai');
|
|
|
|
const Create2Impl = contract.fromArtifact('Create2Impl');
|
|
const ERC20Mock = contract.fromArtifact('ERC20Mock');
|
|
const ERC20 = contract.fromArtifact('ERC20');
|
|
|
|
describe('Create2', function () {
|
|
const [deployerAccount] = accounts;
|
|
|
|
const salt = 'salt message';
|
|
const saltHex = web3.utils.soliditySha3(salt);
|
|
const constructorByteCode = `${ERC20Mock.bytecode}${web3.eth.abi
|
|
.encodeParameters(['address', 'uint256'], [deployerAccount, 100]).slice(2)
|
|
}`;
|
|
|
|
beforeEach(async function () {
|
|
this.factory = await Create2Impl.new();
|
|
});
|
|
|
|
it('should compute the correct contract address', async function () {
|
|
const onChainComputed = await this.factory
|
|
.computeAddress(saltHex, constructorByteCode);
|
|
const offChainComputed =
|
|
computeCreate2Address(saltHex, constructorByteCode, this.factory.address);
|
|
expect(onChainComputed).to.equal(offChainComputed);
|
|
});
|
|
|
|
it('should compute the correct contract address with deployer', async function () {
|
|
const onChainComputed = await this.factory
|
|
.computeAddress(saltHex, constructorByteCode, deployerAccount);
|
|
const offChainComputed =
|
|
computeCreate2Address(saltHex, constructorByteCode, deployerAccount);
|
|
expect(onChainComputed).to.equal(offChainComputed);
|
|
});
|
|
|
|
it('should deploy a ERC20 from inline assembly code', async function () {
|
|
const offChainComputed =
|
|
computeCreate2Address(saltHex, ERC20.bytecode, this.factory.address);
|
|
await this.factory
|
|
.deploy(saltHex, ERC20.bytecode, { from: deployerAccount });
|
|
expect(ERC20.bytecode).to.include((await web3.eth.getCode(offChainComputed)).slice(2));
|
|
});
|
|
|
|
it('should deploy a ERC20Mock with correct balances', async function () {
|
|
const offChainComputed =
|
|
computeCreate2Address(saltHex, constructorByteCode, this.factory.address);
|
|
await this.factory
|
|
.deploy(saltHex, constructorByteCode, { from: deployerAccount });
|
|
const erc20 = await ERC20Mock.at(offChainComputed);
|
|
expect(await erc20.balanceOf(deployerAccount)).to.be.bignumber.equal(new BN(100));
|
|
});
|
|
|
|
it('should failed deploying a contract in an existent address', async function () {
|
|
await this.factory.deploy(saltHex, constructorByteCode, { from: deployerAccount });
|
|
await expectRevert(
|
|
this.factory.deploy(saltHex, constructorByteCode, { from: deployerAccount }), 'Create2: Failed on deploy'
|
|
);
|
|
});
|
|
});
|
|
|
|
function computeCreate2Address (saltHex, bytecode, deployer) {
|
|
return web3.utils.toChecksumAddress(`0x${web3.utils.sha3(`0x${[
|
|
'ff',
|
|
deployer,
|
|
saltHex,
|
|
web3.utils.soliditySha3(bytecode),
|
|
].map(x => x.replace(/0x/, '')).join('')}`).slice(-40)}`);
|
|
}
|