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57 lines
1.6 KiB
57 lines
1.6 KiB
const ethSigUtil = require('eth-sig-util');
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const Wallet = require('ethereumjs-wallet').default;
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const { EIP712Domain, domainSeparator } = require('../../helpers/eip712');
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const EIP712 = artifacts.require('EIP712External');
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contract('EIP712', function (accounts) {
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const [mailTo] = accounts;
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const name = 'A Name';
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const version = '1';
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beforeEach('deploying', async function () {
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this.eip712 = await EIP712.new(name, version);
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// We get the chain id from the contract because Ganache (used for coverage) does not return the same chain id
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// from within the EVM as from the JSON RPC interface.
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// See https://github.com/trufflesuite/ganache-core/issues/515
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this.chainId = await this.eip712.getChainId();
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});
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it('domain separator', async function () {
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expect(
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await this.eip712.domainSeparator(),
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).to.equal(
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await domainSeparator(name, version, this.chainId, this.eip712.address),
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);
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});
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it('digest', async function () {
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const chainId = this.chainId;
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const verifyingContract = this.eip712.address;
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const message = {
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to: mailTo,
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contents: 'very interesting',
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};
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const data = {
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types: {
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EIP712Domain,
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Mail: [
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{ name: 'to', type: 'address' },
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{ name: 'contents', type: 'string' },
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],
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},
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domain: { name, version, chainId, verifyingContract },
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primaryType: 'Mail',
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message,
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};
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const wallet = Wallet.generate();
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const signature = ethSigUtil.signTypedMessage(wallet.getPrivateKey(), { data });
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await this.eip712.verify(signature, wallet.getAddressString(), message.to, message.contents);
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});
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});
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