Webdriverio cantumber can not use promises

Question

I am trying to find out a bit more cucumbers using webdriverIO and I am having problems running my tests.

Actually, I want to highlight this simple function:

Feature: Example Feature
  In order to become productive
  As a test automation engineer
  I want to understand the basics of cucumber

  Scenario: My First Test Scenario
    Given I have open "https://google.com"
    Then the title should be "Google".
    And the bar should be empty.

With this test:

const assert = require('assert');
module.exports = function() {
    this.Given(/^I have open "([^"]*)"$/, function(arg1, callback) {
      browser
        .url(arg1)
        .call(callback);
    });

    this.Then(/^the title should be "([^"]*)"\.$/, function(arg1, callback) {
      // First solution
      const title = browser.getTitle();
      assert(title, arg1);

      // Second solution
      browser
        .getTitle()
        .then(title2 => {
          assert(title2, arg1);
          callback();
        });
    });

    this.Then(/^the bar should be empty\.$/, function(callback) {
        // Write code here that turns the phrase above into concrete actions
        callback(null, 'pending');
    });
}

My configuration file:

"use strict";

const WebDriverIO = require('webdriverio');
const browser = WebDriverIO.remote({
  baseUrl: 'https://google.com', // Or other url, e.g. localhost:3000
  host: 'localhost', // Or any other IP for Selenium Standalone
  port: 4444,
  waitforTimeout: 120 * 1000,
  logLevel: 'silent',
  screenshotPath: `${__dirname}/documentation/screenshots/`,
  desiredCapabilities: {
    browserName: process.env.SELENIUM_BROWSER || 'chrome',
  },
});

global.browser = browser;

module.exports = function() {
  this.registerHandler('BeforeFeatures', function(event, done) {
    browser.init().call(done);
  });

  this.registerHandler('AfterFeatures', function(event, done) {
    browser.end().call(done);
  });
};

My problem

My problems:

• I never go into the .call (callback) function
• If I go around the previous point by adding a callback () immediately after .url (arg1), I go to the next point
• In the first case, neither the first solution nor the second solution seems to work. Although I am trying to write the value of the const header, I have the expected promise. But when I try to resolve this promise (second case), I never register anything (even in the case of rejection).

Limitations

• I do not want to use wdio
• I am using selenium 2.53
• I am using cucumberjs 1.3.1
• webdriverio 4.4.0
• Nodejs v4.6.0

EDIT:

Answer 1

chimpjs. webdriverio, . " ", . , promises, .