add more openzeppelin-solidity library contracts

test/library/ECRecovery.test.js

@@ -0,0 +1,77 @@
+
+import {
+  hashMessage,
+  signMessage,
+} from '../helpers/sign';
+const ECRecoveryMock = artifacts.require('ECRecoveryMock');
+
+require('chai')
+  .use(require('chai-as-promised'))
+  .should();
+
+contract('ECRecovery', function (accounts) {
+  let ecrecovery;
+  const TEST_MESSAGE = 'OpenZeppelin';
+
+  before(async function () {
+    ecrecovery = await ECRecoveryMock.new();
+  });
+
+  it('recover v0', async function () {
+    // Signature generated outside ganache with method web3.eth.sign(signer, message)
+    let signer = '0x2cc1166f6212628a0deef2b33befb2187d35b86c';
+    let message = web3.sha3(TEST_MESSAGE);
+    // eslint-disable-next-line max-len
+    let signature = '0x5d99b6f7f6d1f73d1a26497f2b1c89b24c0993913f86e9a2d02cd69887d9c94f3c880358579d811b21dd1b7fd9bb01c1d81d10e69f0384e675c32b39643be89200';
+    const addrRecovered = await ecrecovery.recover(message, signature);
+    addrRecovered.should.eq(signer);
+  });
+
+  it('recover v1', async function () {
+    // Signature generated outside ganache with method web3.eth.sign(signer, message)
+    let signer = '0x1e318623ab09fe6de3c9b8672098464aeda9100e';
+    let message = web3.sha3(TEST_MESSAGE);
+    // eslint-disable-next-line max-len
+    let signature = '0x331fe75a821c982f9127538858900d87d3ec1f9f737338ad67cad133fa48feff48e6fa0c18abc62e42820f05943e47af3e9fbe306ce74d64094bdf1691ee53e001';
+    const addrRecovered = await ecrecovery.recover(message, signature);
+    addrRecovered.should.eq(signer);
+  });
+
+  it('recover using web3.eth.sign()', async function () {
+    // Create the signature using account[0]
+    const signature = signMessage(accounts[0], TEST_MESSAGE);
+
+    // Recover the signer address from the generated message and signature.
+    const addrRecovered = await ecrecovery.recover(
+      hashMessage(TEST_MESSAGE),
+      signature
+    );
+    addrRecovered.should.eq(accounts[0]);
+  });
+
+  it('recover using web3.eth.sign() should return wrong signer', async function () {
+    // Create the signature using account[0]
+    const signature = signMessage(accounts[0], TEST_MESSAGE);
+
+    // Recover the signer address from the generated message and wrong signature.
+    const addrRecovered = await ecrecovery.recover(hashMessage('Test'), signature);
+    assert.notEqual(accounts[0], addrRecovered);
+  });
+
+  it('recover should fail when a wrong hash is sent', async function () {
+    // Create the signature using account[0]
+    let signature = signMessage(accounts[0], TEST_MESSAGE);
+
+    // Recover the signer address from the generated message and wrong signature.
+    const addrRecovered = await ecrecovery.recover(hashMessage(TEST_MESSAGE).substring(2), signature);
+    addrRecovered.should.eq('0x0000000000000000000000000000000000000000');
+  });
+
+  context('toEthSignedMessage', () => {
+    it('should prefix hashes correctly', async function () {
+      const hashedMessage = web3.sha3(TEST_MESSAGE);
+      const ethMessage = await ecrecovery.toEthSignedMessageHash(hashedMessage);
+      ethMessage.should.eq(hashMessage(TEST_MESSAGE));
+    });
+  });
+});