0block.js

export default class Block {
  constructor(driver) {
    this.driver = driver
  }
}

1search.js

import Block from './lib/block';

class SearchArrow extends Block {
  get requestInput() {
    return this.driver.findElement('#search-input');
  }
  get searchButton() {
    return this.driver.findElement('.b-form-button__input');
  }
  search(request) {
    this.requestInput.sendKeys(request);
    this.searchButton.click();
  }
}

export class SearchPage {
  constructor(driver) {
    this.driver = driver;
    this.searchArrow = new SearchArrow(driver);
  }
  search(...args) {
    this.searchArrow.search(...args);
  }
}

xtest.js

import test from 'tape';
import {SearchPage} from './page/searh';

var driver, searchPage;

test.before('setup', t => {
  driver = new FirefoxDriver();
  searchPage = new SearchPage(this.driver);
});

test.before('loadPage', t => {
  driver.get('http://www.yandex.com');
});

test.after('closeDriver', t => {
  driver.quit();
});

test('sample', t => {
  searchPage.search("yandex");
});