Zip-BDD-doo-dah

BDD, Drupal and Behat. Andrew Larcombe and Graham Taylor, Drupalcamp London March 2013

Transcript

1. zip-BDD-do-dah, zip-BDD-ay! or Drupal, Behaviour Driven Development and Behat Sunday, 3 March 13
2. Hello! Sunday, 3 March 13
3. Behaviour Driven Development Sunday, 3 March 13
4. “BDD is a second-generation, outside–in, pull-based, multiple- stakeholder, multiple-scale, high- automation, agile methodology.” Sunday, 3 March 13
5. Sunday, 3 March 13
6. Sunday, 3 March 13
7. What Problem Are We Trying to Solve? Sunday, 3 March 13
8. What Problem Are We Trying to Solve? Language Sunday, 3 March 13
9. What Problem Are We Trying to Solve? Language Assumption that when something is stated everyone understands Sunday, 3 March 13
10. What Problem Are We Trying to Solve? Language Assumption that when something is stated everyone understands Consquences: Late, delayed products Sunday, 3 March 13
11. Sunday, 3 March 13
12. Why not (just) Test-Driven Development? Traditional TDD - ‘Unit’ Tests Inside Out “Refactoring Problem” - Change code, maintain behaviour “Accessibility Problem” - Who can read it? Sunday, 3 March 13
13. BDD Sunday, 3 March 13
14. Test-Driven Development tests written first repeatable, automated BDD Sunday, 3 March 13
15. Test-Driven Development tests written first repeatable, automated Domain Driven Design describes the business domain gives us a common (ubiquitous) language BDD Sunday, 3 March 13
16. Test-Driven Development tests written first repeatable, automated Domain Driven Design describes the business domain gives us a common (ubiquitous) language Support Gherkin, Behat Jenkins, JIRA, Sauce, others BDD Sunday, 3 March 13
17. The conversation... Sunday, 3 March 13
18. The conversation... Different approaches to solving problems Variety of experiences Understanding of jargon, motivations Sunday, 3 March 13
19. Given some context When do something Then I expect something to happen to add business value The scenario... Sunday, 3 March 13
20. Given I am on the gateway page When I login as Fred Smith Then I expect to be on Fred Smith’s user account page The scenario... Sunday, 3 March 13
21. Given I am on the gateway page When I login as Fred Smith Then I expect to be on Fred Smith’s user account page But wait... It’s a specification... It’s documentation... It’s an automated test... Sunday, 3 March 13
22. “BDD is a second-generation, outside–in, pull-based, multiple- stakeholder, multiple-scale, high- automation, agile methodology.” Sunday, 3 March 13
23. Setup Drupal BDD = Behat / Mink / Gherkin + 3rd Party Integration + Automation Sunday, 3 March 13
24. { "require": { "behat/behat": "2.4.*@stable", "behat/mink": "1.4@stable", "behat/mink-goutte-driver": "*", "behat/mink-selenium-driver": "*", "behat/mink-selenium2-driver": "*", "behat/mink-sahi-driver": "*", "behat/mink-zombie-driver": "*", "drupal/drupal-extension": "*", "symfony/process": "*", "behat/symfony2-extension": "*", "symfony/form": "*", "symfony/validator": "*", "behat/mink-extension": "*", "symfony/http-kernel": "*", "fabpot/goutte": "dev-master#5f7fd00", "sauce/connect": "*", "sauce/sausage": "*", "vipsoft/jira-extension": "*" }, "minimum-stability": "dev", "config": { "bin-dir": "bin/" } } Composer.json https://packagist.org/ Sunday, 3 March 13
25. $ curl http://getcomposer.org/installer | php $ php composer.phar install $ bin/behat --init Installation Sunday, 3 March 13
26. http://drupal.org/project/ drupalextension class FeatureContext extends DrupalContext { ... } Sunday, 3 March 13
27. Behat.yml # Behat.yml default: paths: features: 'features' bootstrap: 'features/bootstrap' context: parameters: drupal_users: admin user: username: 'admin' password: 'admin' default_browser: 'goutte' extensions: Behat\MinkExtension\Extension: goutte: ~ selenium2: ~ base_url: 'http://londonkickstart.local' javascript_session: 'selenium2' Drupal\DrupalExtension\Extension: blackbox: ~ drush: alias: 'kickstart' Sunday, 3 March 13
28. http://mink.behat.org/ #different-browsers-drivers parameters: default_browser: 'goutte' extensions: Behat\MinkExtension\Extension: goutte: ~ selenium2: ~ base_url: 'http://londonkickstart.local' javascript_session: 'selenium2' Sunday, 3 March 13
29. Writing features http://docs.behat.org/guides/1.gherkin.html Sunday, 3 March 13
30. @todrink @cart Feature: Add drinking item to cart In order to buy something to drink with As any user I should be able to add a coffee mug to my cart Scenario: View the drinking options text and links on the page Given I am on the homepage When I click "To drink with" Then I should see the heading "Coffee Mugs" And I should see the link "Drupal Commerce to Wake You Up" Scenario: View coffee mug product information Given I am on the homepage When I click "To drink with" And I click "Drupal Commerce to Wake You Up" Then I should see the following <texts> | texts | | Drupal Commerce to Wake You Up | | Acme gear | | $8.00 | | Product Description | | SKU: MG1-BLU-OS | ... todrink.feature Sunday, 3 March 13
31. Executing your features http://docs.behat.org/guides/6.cli.html Time to cut to the code... Sunday, 3 March 13
32. Third party Integration http://extensions.behat.org/jira-extension/ Sunday, 3 March 13
33. # sauce.yml default: extensions: Behat\MinkExtension\Extension: wd_host: SAUCE_USERNAME:API_KEY:@ondemand.saucelabs.com/wd/hub default_session: 'selenium2' iPad: extensions: Behat\MinkExtension\Extension: selenium2: browser: iPad capabilities: { platform: Mac 10.8, version: 6} https://saucelabs.com/docs/browsers Sauce connect = https://saucelabs.com/docs/connect Sunday, 3 March 13
34. Image Credits: http://knowyourmeme.com/photos/275025-wat http://www.flickr.com/photos/mgifford/7396924736/ http://www.businessinfest.info/wp-content/uploads/2012/08/business-analyst.jpg http://www.flickr.com/photos/ceardach/4550836301/ Thank You! We are Graham Taylor @g_taylor Andrew Larcombe @andrewl Links Dan North: http://dannorth.net/blog Liz Keogh: http://lizkeogh.com Gojko Adzic: http://gojko.net http://specificationbyexample.com Behat - http://behat.org Mink - http://mink.behat.org http://drupal.org/project/doobie Sunday, 3 March 13