113 lines
4.4 KiB
TypeScript
113 lines
4.4 KiB
TypeScript
import { chaiSetup, constants, hexConcat, provider, txDefaults, web3Wrapper } from '@0x/contracts-test-utils';
|
|
import { BlockchainLifecycle } from '@0x/dev-utils';
|
|
import { BigNumber, signTypedDataUtils } from '@0x/utils';
|
|
import * as chai from 'chai';
|
|
import * as ethUtil from 'ethereumjs-util';
|
|
import * as _ from 'lodash';
|
|
|
|
import { artifacts } from './artifacts';
|
|
import { TestLibEIP712Contract } from './wrappers';
|
|
|
|
chaiSetup.configure();
|
|
const expect = chai.expect;
|
|
const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
|
|
|
|
describe('LibEIP712', () => {
|
|
let lib: TestLibEIP712Contract;
|
|
|
|
before(async () => {
|
|
await blockchainLifecycle.startAsync();
|
|
// Deploy LibEIP712
|
|
lib = await TestLibEIP712Contract.deployFrom0xArtifactAsync(artifacts.TestLibEIP712, provider, txDefaults, {});
|
|
});
|
|
|
|
after(async () => {
|
|
await blockchainLifecycle.revertAsync();
|
|
});
|
|
|
|
/**
|
|
* Tests a specific instance of EIP712 domain hashing.
|
|
* @param lib The LibEIP712 contract to call.
|
|
* @param name The name of the domain.
|
|
* @param version The version of the domain.
|
|
* @param chainId The chain id of the domain.
|
|
* @param verifyingContract The verifying contract address of the domain.
|
|
*/
|
|
async function testHashEIP712DomainAsync(
|
|
name: string,
|
|
version: string,
|
|
chainId: number,
|
|
verifyingContract: string,
|
|
): Promise<void> {
|
|
const expectedHash = signTypedDataUtils.generateDomainHash({
|
|
name,
|
|
version,
|
|
chainId,
|
|
verifyingContract,
|
|
});
|
|
const actualHash = await lib.externalHashEIP712DomainSeperator.callAsync(
|
|
name,
|
|
version,
|
|
new BigNumber(chainId),
|
|
verifyingContract,
|
|
);
|
|
expect(actualHash).to.be.eq(hexConcat(expectedHash));
|
|
}
|
|
|
|
describe('_hashEIP712Domain', async () => {
|
|
it('should correctly hash empty input', async () => {
|
|
await testHashEIP712DomainAsync('', '', 0, constants.NULL_ADDRESS);
|
|
});
|
|
|
|
it('should correctly hash non-empty input', async () => {
|
|
await testHashEIP712DomainAsync('_hashEIP712Domain', '1.0', 62, lib.address);
|
|
});
|
|
|
|
it('should correctly hash non-empty input', async () => {
|
|
await testHashEIP712DomainAsync('_hashEIP712Domain', '2.0', 0, lib.address);
|
|
});
|
|
});
|
|
|
|
/**
|
|
* Tests a specific instance of EIP712 message hashing.
|
|
* @param lib The LibEIP712 contract to call.
|
|
* @param domainHash The hash of the EIP712 domain of this instance.
|
|
* @param hashStruct The hash of the struct of this instance.
|
|
*/
|
|
async function testHashEIP712MessageAsync(domainHash: string, hashStruct: string): Promise<void> {
|
|
// Remove the hex prefix from the domain hash and the hash struct
|
|
const unprefixedDomainHash = domainHash.slice(2, domainHash.length);
|
|
const unprefixedHashStruct = hashStruct.slice(2, hashStruct.length);
|
|
|
|
// Hash the provided input to get the expected hash
|
|
const input = '0x1901'.concat(unprefixedDomainHash.concat(unprefixedHashStruct));
|
|
const expectedHash = '0x'.concat(ethUtil.sha3(input).toString('hex'));
|
|
|
|
// Get the actual hash by calling the smart contract
|
|
const actualHash = await lib.externalHashEIP712Message.callAsync(domainHash, hashStruct);
|
|
|
|
// Verify that the actual hash matches the expected hash
|
|
expect(actualHash).to.be.eq(expectedHash);
|
|
}
|
|
|
|
describe('_hashEIP712Message', () => {
|
|
it('should correctly hash empty input', async () => {
|
|
await testHashEIP712MessageAsync(constants.NULL_BYTES32, constants.NULL_BYTES32);
|
|
});
|
|
|
|
it('should correctly hash non-empty input', async () => {
|
|
await testHashEIP712MessageAsync(
|
|
'0xb10e2d527612073b26eecdfd717e6a320cf44b4afac2b0732d9fcbe2b7fa0cf6', // keccak256(abi.encode(1))
|
|
'0x405787fa12a823e0f2b7631cc41b3ba8828b3321ca811111fa75cd3aa3bb5ace', // keccak256(abi.encode(2))
|
|
);
|
|
});
|
|
|
|
it('should correctly hash non-empty input', async () => {
|
|
await testHashEIP712MessageAsync(
|
|
'0x405787fa12a823e0f2b7631cc41b3ba8828b3321ca811111fa75cd3aa3bb5ace', // keccak256(abi.encode(2))
|
|
'0xc2575a0e9e593c00f959f8c92f12db2869c3395a3b0502d05e2516446f71f85b', // keccak256(abi.encode(3))
|
|
);
|
|
});
|
|
});
|
|
});
|