metamask-extension/test/e2e/tests/signature-request.spec.js

const { strict: assert } = require('assert');
const { withFixtures } = require('../helpers');

describe('Signature Request', function () {
  it('can initiate and confirm a Signature Request', async function () {
    const ganacheOptions = {
      accounts: [
        {
          secretKey:
            '0x7C9529A67102755B7E6102D6D950AC5D5863C98713805CEC576B945B15B71EAC',
          balance: 25000000000000000000,
        },
      ],
    };
    const publicAddress = '0x5cfe73b6021e818b776b421b1c4db2474086a7e1';
    await withFixtures(
      {
        dapp: true,
        fixtures: 'connected-state',
        ganacheOptions,
        title: this.test.title,
      },
      async ({ driver }) => {
        await driver.navigate();
        await driver.fill('#password', 'correct horse battery staple');
        await driver.press('#password', driver.Key.ENTER);

        await driver.openNewPage('http://127.0.0.1:8080/');

        // creates a sign typed data signature request
        await driver.clickElement('#signTypedDataV4', 10000);

        await driver.waitUntilXWindowHandles(3);
        const windowHandles = await driver.getAllWindowHandles();
        await driver.switchToWindowWithTitle(
          'MetaMask Notification',
          windowHandles,
        );

        const title = await driver.findElement(
          '.signature-request-content__title',
        );
        const name = await driver.findElement(
          '.signature-request-content__info--bolded',
        );
        const content = await driver.findElements(
          '.signature-request-content__info',
        );
        const origin = content[0];
        const address = content[1];
        assert.equal(await title.getText(), 'Signature Request');
        assert.equal(await name.getText(), 'Ether Mail');
        assert.equal(await origin.getText(), 'http://127.0.0.1:8080');
        assert.equal(
          await address.getText(),
          `${publicAddress.slice(0, 8)}...${publicAddress.slice(
            publicAddress.length - 8,
          )}`,
        );

        // Approve signing typed data
        await driver.clickElement({ text: 'Sign', tag: 'button' }, 10000);

        // switch to the Dapp and verify the signed addressed
        await driver.switchToWindowWithTitle('E2E Test Dapp', windowHandles);
        await driver.clickElement('#signTypedDataV4Verify', 10000);
        const recoveredAddress = await driver.findElement(
          '#signTypedDataV4VerifyResult',
        );
        assert.equal(await recoveredAddress.getText(), publicAddress);
      },
    );
  });
});