solid-grinder 0.0.2

A CLI that goes along with building blocks of smart contract. Along with our front-end snippets, this toolbox can reduce L2 gas cost by encoding calldata for dApps development to use as little bytes of calldata as possible.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87

const { toEthSignedMessageHash } = require('../../helpers/sign');

const { expect } = require('chai');

const SignatureChecker = artifacts.require('$SignatureChecker');
const ERC1271WalletMock = artifacts.require('ERC1271WalletMock');
const ERC1271MaliciousMock = artifacts.require('ERC1271MaliciousMock');

const TEST_MESSAGE = web3.utils.sha3('OpenZeppelin');
const WRONG_MESSAGE = web3.utils.sha3('Nope');

contract('SignatureChecker (ERC1271)', function (accounts) {
  const [signer, other] = accounts;

  before('deploying', async function () {
    this.signaturechecker = await SignatureChecker.new();
    this.wallet = await ERC1271WalletMock.new(signer);
    this.malicious = await ERC1271MaliciousMock.new();
    this.signature = await web3.eth.sign(TEST_MESSAGE, signer);
  });

  context('EOA account', function () {
    it('with matching signer and signature', async function () {
      expect(
        await this.signaturechecker.$isValidSignatureNow(signer, toEthSignedMessageHash(TEST_MESSAGE), this.signature),
      ).to.equal(true);
    });

    it('with invalid signer', async function () {
      expect(
        await this.signaturechecker.$isValidSignatureNow(other, toEthSignedMessageHash(TEST_MESSAGE), this.signature),
      ).to.equal(false);
    });

    it('with invalid signature', async function () {
      expect(
        await this.signaturechecker.$isValidSignatureNow(signer, toEthSignedMessageHash(WRONG_MESSAGE), this.signature),
      ).to.equal(false);
    });
  });

  context('ERC1271 wallet', function () {
    for (const signature of ['isValidERC1271SignatureNow', 'isValidSignatureNow']) {
      context(signature, function () {
        it('with matching signer and signature', async function () {
          expect(
            await this.signaturechecker[`$${signature}`](
              this.wallet.address,
              toEthSignedMessageHash(TEST_MESSAGE),
              this.signature,
            ),
          ).to.equal(true);
        });

        it('with invalid signer', async function () {
          expect(
            await this.signaturechecker[`$${signature}`](
              this.signaturechecker.address,
              toEthSignedMessageHash(TEST_MESSAGE),
              this.signature,
            ),
          ).to.equal(false);
        });

        it('with invalid signature', async function () {
          expect(
            await this.signaturechecker[`$${signature}`](
              this.wallet.address,
              toEthSignedMessageHash(WRONG_MESSAGE),
              this.signature,
            ),
          ).to.equal(false);
        });

        it('with malicious wallet', async function () {
          expect(
            await this.signaturechecker[`$${signature}`](
              this.malicious.address,
              toEthSignedMessageHash(TEST_MESSAGE),
              this.signature,
            ),
          ).to.equal(false);
        });
      });
    }
  });
});