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1.14.0 • Public • Published

Applitools Eyes

Applitools Eyes Service for webdriver.io 5


Offical Applitools Eyes service for version 5 of the webdriver.io automation framework.

Table of contents


Install npm package

Install the service as a local dev dependency in your tested project:

npm install --save-dev @applitools/eyes-webdriverio5-service

Add the service to webdriver.io's configuration

The config file is normally located at wdio.conf.js:

exports.config = {
  // ...
  services: ['@applitools/eyes-webdriverio5-service']
  // ...

Applitools API key

In order to authenticate via the Applitools server, you need to supply the Applitools service with the API key you got from Applitools. Read more about how to obtain the API key here.

Using an environment variable

To do this, set the environment variable APPLITOOLS_API_KEY to the API key before running your tests. For example, on Linux/Mac:

export APPLITOOLS_API_KEY=<your_key>

And on Windows:

set APPLITOOLS_API_KEY=<your_key>

Using webdriver.io's config file

It's also possible to specify the API key in the webdriver.io config file (normally located at wdio.conf.js). This should be placed inside the general configuration for the service, under the eyes property:

// wdio.conf.js

exports.config = {
  // ...
  services: ['@applitools/eyes-webdriverio5-service'],
  eyes: {
    apiKey: 'YOUR_API_KEY',
  // ...

See the Configuration section below for more information on using the config file.


After completing the installation and defining the service and the API key, you will be able to use Eyes commands inside your webdriver.io tests to create visual tests.


describe('webdriver.io page', () => {
  it('is visually perfect', () => {


Every configuration parameter that exists in the configuration for Applitools' Eyes SDK for webdriver.io can be specified in the wdio.conf.js file (or any other webdriver.io configuration file specified by the user).

This is provided in the eyes entry in the configuration file. For example:

exports.config = {
  eyes: {
    viewportSize: {width: 1200, height: 800},
    matchLevel: 'Layout',
    matchTimeout: 0,
    batch: {name: 'This will appear as the batch name in Eyes dashboard'},
    // ...

For more information, visit our documentation page: https://applitools.com/docs/api/eyes-sdk/index-gen/class-configuration-webdriverio_sdk5-javascript.html

Running with the Ultrafast grid

To run tests with the Ultrafast grid, specify the following in the wdio.conf.js file:

exports.config = {
  eyes: {
    useVisualGrid: true,
    // ...

To specify which viewport sizes and browsers to render on the Ultrafast grid, use the browsersInfo entry in the configuration. For example:

exports.config = {
  eyes: {
    useVisualGrid: true,
    browsersInfo: [
      {width: 1200, height: 800, name: 'chrome'},
      {width: 1200, height: 800, name: 'firefox'},
      {width: 1200, height: 800, name: 'safari'},
      {width: 1200, height: 800, name: 'edgechromium'}
      {width: 1200, height: 800, name: 'ie'}
      {deviceName: 'Galaxy S9 Plus'}
    // ...

To specify the maximum concurrency rate according to your team/organization's plan:

exports.config = {
  eyes: {
    useVisualGrid: true,
    testConcurrency: 50, // default: 5
    // ...

Verbose logging

For troubleshooting, it is possible to enable versbose logging by specifying the following in the wdio.conf.js file:

exports.config = {
  // ...
  enableEyesLogs: true,
  // ...

Override testName and appName

Here's an example for overriding the default values:

const configuration = browser.eyesGetConfiguration()

Batch completion notifications

Here's how to setup batch notifications:

// wdio.conf.js

exports.config = {
  // ...
  eyes: {
    batch: {notifyOnCompletion: true}
  // ...

For more information about batch notifications, and the remaining steps required to setup notifications, see https://applitools.com/docs/features/batch-completion-notifications.html.


browser.eyesCheck(tag, checkSettings)

Generate a screenshot of the current page and add it to the Applitools Test.



Defines a name for the checkpoint in the Eyes Test Manager. The name may be any string and serves to identify the step to the user in the Test manager. You may change the tag value without impacting testing in any way since Eyes does not use the tag to identify the baseline step that corresponds to the checkpoint - Eyes matches steps based on their content and position in the sequences of images of the test. See How Eyes compares checkpoints and baseline images for details.


Holds the checkpoint's configuration. This is defined using the fluent API, starting with Target. The default is Target.window().fully(), which takes a full page screenshot.

For example, to take a viewport screenshot:

const {Target} = require('@applitools/eyes-webdriverio5-service')

// ...

browser.eyesCheck(tag, Target.window())

The Target API can be used to configure more parameters, such as ignore regions, match level, etc.

For more information, visit our documentation page: https://applitools.com/docs/api/eyes-sdk/index-gen/class-target-webdriverio_sdk5-javascript.html


Close the current visual test and return the test results. For example:

describe('webdriver.io page', () => {
  it('is visually perfect', () => {
    browser.eyesCheck('getting started page')
    const testResults = browser.eyesGetTestResults()

    // example for using the testResults -
    // fail the test if visual differences were found
    if (testResults.getStatus() !== 'Passed') {
      const testName = `'${testResults.getName()}' of '${testResults.getAppName()}'`
      throw new Error(`Test ${testName} detected differences! See details at: ${testResults.getUrl()}`)

For more information, visit our documentation page: https://applitools.com/docs/api/eyes-sdk/index-gen/class-testresults-webdriverio_sdk5-javascript.html


Sets the scroll root element to a specific element on the page. This is the element that will be scrolled when taking a full page screenshot.

For example:



Sets a new configuration for the underlying Eyes instance. This will override the configuration specified in the wdio.conf.js file for the remainder of test execution.

For example, see the Override testName and appName section.


Gets the configuration object that's defined for the underlying Eyes instance.

For example, see the Override testName and appName section.

browser.eyesAddProperty(key, value)

Adds a custom key name/value property that will be associated with your tests. You can view these properties and filter and group by these properties in the Test Manager


Clears any custom key name/value properties.

Appendix: Using the service vs. direct SDK

As users of webdriver.io 5, you may choose to use the SDK directly (package name @applitools/eyes-webdriverio). However, using the Applitools Eyes service provides several boilerplate operations and default values, and lets you concentrate on the core logic.

Here are the main differences between the service and the SDK:

  1. No need to call eyes.open and eyes.close. Only eyes.check (or its service equivalent, browser.eyesCheck) is needed. The open and close calls are made between different it's, so each functional test that contains visual checkpoints will appear in Eyes dashboard separately.

  2. No need to specify testName and appName in the configuration. These values are automatically extracted from the it's and describe's. The default test name is the containing it, and the default app name is the it's containing describe.

    For more information, see Override testName and appName section.

  3. No need to instantiate the Eyes class. It is instantiated for you, and configured appropriately from wdio.conf.js.

  4. Receiving batch completion notifications when test execution is done. See Batch completion notifications.

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npm i @applitools/eyes-webdriverio5-service

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