Testing with Behat in Drupal 8 for the beginners. Install and configure Behat, Mink and Seletium. First steps in BDD testing. composer.json { "require": { "drupal/drupal-extension": "~3.0", "guzzlehttp/guzzle": "^6.0@dev", "symfony/dependency-injection": "2.8.2", "symfony/event-dispatcher": "2.8.2", "behat/mink-extension": "*", "behat/mink-goutte-driver": "^1.2", "behat/mink-selenium2-driver": "^1.3" }, "config": { "bin-dir": "bin/" } } Behat.yml default: suites: default: contexts: - FeatureContext - Drupal\DrupalExtension\Context\DrupalContext - Drupal\DrupalExtension\Context\MinkContext - Drupal\DrupalExtension\Context\MessageContext - Drupal\DrupalExtension\Context\DrushContext extensions: Behat\MinkExtension: goutte: ~ selenium2: ~ #http://localhost:4444/mylink browser_name: chrome base_url: http://kharkivdrupal Drupal\DrupalExtension: blackbox: ~ api_driver: 'drupal' drupal: drupal_root: '/var/www/kharkivdrupal/drupal' region_map: content: '.region-content'

1. BDD in Drupal 8 using Behat, Mink
and Selenium
Eugene Vozniuk
Freelancer
Skype:
evgeniy.vozniuk

2. WHY BDD?
● Documentation and examples
● Human readable tests
● Ability to test JS functionality

3. Installation
• http://behat-drupal-extension.readthedocs.io/en/3.1/
• curl -s https://getcomposer.org/installer | php
• Create composer.json
•
Run php composer.phar install

4. Configuration
• Create behat.yml with following code:

5. • bin/behat –init (it will create folder features)
• bin/behat -dl
default | When I click :arg1 link
default | When I am waiting for ajax
default | When I should see place facebook button
default | Given I am an anonymous user
default | Given I am not logged in
……………………………………..
•Create file
custom_module.feature

6. Gherkin
• {A} - the benefit or value of the feature
• {B} – the role (or person) who will
benefit
• {C} - short feature description
• Feature: {custom_title}
• In order to {A}
• As a {B}
• I need to {C}
Feature: Homepage
In order to see if the custom homepage works
As a website user
I need to be able to see the home page

7. Scenario
Scenario: Name
Given ... Initial State
And ... Initial State
When ... Make action
And ... Another action
Then ... Check result
And ... Check result

8. Feature: Custom module
In order to see custom block on the front page
As a website user
I need to be able to enable custom module
@api
Scenario: Install custom module
Given I am logged in as a user with the "administrator" role
When I visit "/admin/modules"
And I should see the text “Block Example"
And I check the box "modules[block_example][enable]"
When I press the "Install" button
Then I should see the text "has been enabled."
Scenario Example 1

10. Scenario Example 2
@javascript @api
Scenario: place the block in the content region
Given I am logged in as a user with the
"administrator" role
Given the cache has been cleared
Given I visit "/admin/structure/block"
When I click "edit-blocks-region-content-title"
And I am waiting for ajax
Then I should see the text "have been updated"

11. DEMO

12. Selenium
• Download Latest .jar file from
http://www.seleniumhq.org/download/
• Run java -jar selenium-server-standalone-
x.x.x.jar

13. First Code

14. Put code into
bootstrap/FeatureContext.php

15. Useful links
• https://www.drupal.org/sandbox/jchin19
68/2829843
• https://github.com/alnutile/behat_editor
• https://www.lullabot.com/articles/an-
overview-of-testing-in-drupal-8
• https://www.velir.com/blog/2016/08/25/
behavior-driven-testing-drupal-8

16. Thank you!