Building Enterprise JavaScript Applications

Asserting a result

The last step is to do the following:

Then the "#register-button" element should have a "disabled" attribute

As before, we need to find the element, but this time read its disabled attribute and assert that it is set to "true".

The HTML content attribute will always be a string, even when you'd expect a boolean or number.

In spec/cucumber/steps/assertions/index.js, add the following:

import assert from 'assert';import { Given, When, Then } from 'cucumber';import { By } from 'selenium-webdriver';When(/^the (?:"|')([\.#\w-]+)(?:"|') element should have a (?:"|')([\w_-]+)(?:"|') attribute$/, async function (selector, attributeName) {  const element = await this.driver.findElement(By.css(selector)); const attributeValue = await ...