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Behat – an introduction

human-readable automated testing. Behat – an introduction. Overview of this presentation . Who What Why Where How. Overview of this presentation . Who am I? Who should use this? What Why Where How. Overview of this presentation . Who am I? Who should use this?

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Behat – an introduction

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  1. human-readable automated testing Behat – an introduction

  2. Overview of this presentation • Who • What • Why • Where • How

  3. Overview of this presentation • Who am I?Who should use this? • What • Why • Where • How

  4. Overview of this presentation • Who am I? Who should use this? • What is Behat? • Why • Where • How

  5. Overview of this presentation • Who am I? Who should use this? • What is Behat? • Why should you care? • Where • How

  6. Overview of this presentation • Who am I? Who should use this? • What is Behat? • Why should you care? • Where did thiscome from? • How

  7. Overview of this presentation • Who am I? Who should use this? • What is Behat? • Why should you care? • Where did thiscome from? • How does it work? How can you use it?

  8. Who am I? Seth Cohn • @sethcohn at drupal.org, twitter, and elsewhere • Almost 9 years of Drupal • Worked as independent, part of development companies,non-profits, and more.. • Elected in NH in 2010 as State Representative, prime sponsored the first Open Source/Open Data bill passed into law in USA

  9. Who should use this? • Who is the target of this talk? • Developers who want to be clear on what they are being asked to build • Project Managers who want to be clear on what they are requesting be built • Anyone using Agile methods or who wants to… • End Users working to get new useful features built • Anyone wanting to drive focused development

  10. Behat is? What is Behat? “Behat is a tool that makes behavior driven development (BDD) possible.” http://docs.behat.org first line of the quick intro So let’s ask what BDD is?

  11. behavior driven development (BDD)? What is that? Coined by Dan North, http://dannorth.net who was teaching Test Driven Development, and asking questions like: • Where to start in the process? • What to test and what not to test? • How much to test in one go? • What to call the tests? • How to understand why a test fails?

  12. behavior driven development (BDD)? What is that? Coined by Dan North, http://dannorth.net who was teaching Test Driven Development, and asking questions like: • Where to start in the process? • What to test and what not to test? • How much to test in one go? • What to call the tests? • How to understand why a test fails?

  13. behavior driven development (BDD)? What is that? Coined by Dan North, http://dannorth.net who was teaching Test Driven Development, and asking questions like: • Where to start in the process? • What to test and what not to test? • How much to test in one go? • What to call the tests? • How to understand why a test fails?

  14. behavior driven development (BDD)? What is that? Coined by Dan North, http://dannorth.net who was teaching Test Driven Development, and asking questions like: • Where to start in the process? • What to test and what not to test? • How much to test in one go? • What to call the tests? • How to understand why a test fails?

  15. behavior driven development (BDD)? What is that? Coined by Dan North, http://dannorth.net who was teaching Test Driven Development, and asking questions like: • Where to start in the process? • What to test and what not to test? • How much to test in one go? • What to call the tests? • How to understand why a test fails?

  16. behavior driven development (BDD)? What is that? Coined by Dan North, http://dannorth.net who was teaching Test Driven Development, and asking questions like: • Where to start in the process? • What to test and what not to test? • How much to test in one go? • What to call the tests? • How to understand why a test fails?

  17. Testing Pyramid – Mike Cohn* • UI • Service • Unit http://www.mountaingoatsoftware.com/blog/the-forgotten-layer-of-the-test-automation-pyramid* no relation

  18. Testing Pyramid – Mike Cohn* • UI • Service • Unit http://www.mountaingoatsoftware.com/blog/the-forgotten-layer-of-the-test-automation-pyramid* no relation

  19. behavior driven development (BDD)? BDD rethinks testing: • should be written in order of business value • should use the standard agile framework of a User story: • "As a [role] I want [feature] so that [benefit]” • should be written with Acceptance criteriain terms of scenarios and implemented as classes: • Given [initial context], when [event occurs], then [ensure some outcomes]

  20. behavior driven development (BDD)? BDD rethinks testing: • should be written in order of business value • should use the standard agile framework of a User story: • "As a [role] I want [feature] so that [benefit]” • should be written with Acceptance criteriain terms of scenarios and implemented as classes: • Given [initial context], when [event occurs], then [ensure some outcomes]

  21. behavior driven development (BDD)? BDD rethinks testing: • should be written in order of business value • should use the standard agile framework of a User story: • "As a [role] I want [feature] so that [benefit]” • should be written with Acceptance criteriain terms of scenarios and implemented as classes: • Given [initial context], when [event occurs], then [ensure some outcomes]

  22. behavior driven development (BDD)? BDD rethinks testing: • should be written in order of business value • should use the standard agile framework of a User story: • "As a [role] I want [feature] so that [benefit]” • should be written with Acceptance criteriain terms of scenarios and implemented as classes: • Given [initial context], when [event occurs], then [ensure some outcomes]

  23. behavior driven development (BDD)? BDD rethinks testing: • should be written in order of business value • should use the standard agile framework of a User story: • "As a [role] I want [feature] so that [benefit]” • should be written with Acceptance criteriain terms of scenarios and implemented as classes: • Given [initial context], when [event occurs], then [ensure some outcomes]

  24. behavior driven development (BDD)? BDDrethinks testing: • should be written in order of business value • should use the standard agileframework of a User story: • "As a [role] I want [feature] so that [benefit]” • should be written with Acceptance criteriain terms of scenariosand implemented asclasses: • Given [initial context], when [event occurs], then [ensure some outcomes]

  25. Behat is? (let’s try again!) What is Behat? Behat is a PHP clone of Cucumber (which was written in Ruby). It works with Mink, to….

  26. Behat is? (let’s try again!) What is Behat? Behat is a PHP clone of Cucumber (which was written in Ruby). It works with Mink, to…. WHA? Ok, let’s try again….

  27. Pieces that make up ‘Behat’ • Behattests the behavior of your application described in special language called Gherkin.

  28. Pieces that make up ‘Behat’ • Behattests the behavior of your application described in special language called Gherkin. • Behat is a clone of a similar tool in Ruby called Cucumber. • Cucumber? • Gherkin! • Behat?

  29. Pieces that make up ‘Behat’ • Behattests the behavior of your application described in special language called Gherkin. • Gherkin is a “Business Readable Domain Specific Language” created especially for behavior descriptions.

  30. Pieces that make up ‘Behat’ • Behattests the behavior of your application described in special language called Gherkin. • Gherkin is a “Business Readable Domain Specific Language” created especially for behavior descriptions. Example? Feature:"As a [role] I want [feature] so that [benefit]” Scenario: Given [initial context], when [event occurs], then [ensure some outcomes]

  31. Pieces that make up ‘Behat’ • Behattests the behavior of your application described in special language called Gherkin. • Gherkin is a Business Readable, Domain Specific Language created especially for behavior descriptions. • Mink is an open source acceptance test framework for web applications, written in PHP 5.3

  32. Pieces that make up ‘Behat’ • Behattests the behavior of your application described in special language called Gherkin. • Gherkin is a Business Readable, Domain Specific Language created especially for behavior descriptions. • Mink is an open source acceptance test framework for web applications, written in PHP 5.3 • GoutteDriver • SahiDriver • ZombieDriver • SeleniumDriver • Selenium2Driver

  33. Pieces that make up ‘Behat’ • Behattests the behavior of your application described in special language called Gherkin. • Gherkin is a Business Readable, Domain Specific Language created especially for behavior descriptions. • Mink is an open source acceptance test framework for web applications, written in PHP 5.3 • GoutteDriver • SahiDriver • ZombieDriver • SeleniumDriver • Selenium2Driver

  34. Pieces that make up ‘Behat’ • Behattests the behavior of your application described in special language called Gherkin. • Gherkin is a Business Readable, Domain Specific Language created especially for behavior descriptions. • Mink is an open source acceptance test framework for web applications, written in PHP 5.3 • No Javascript driver • SahiDriver • ZombieDriver • SeleniumDriver • Selenium2Driver

  35. Pieces that make up ‘Behat’ • Behattests the behavior of your application described in special language called Gherkin. • Gherkin is a Business Readable, Domain Specific Language created especially for behavior descriptions. • Mink is an open source acceptance test framework for web applications, written in PHP 5.3 • No Javascript driver • Sahi Proxy Driver • ZombieDriver • SeleniumDriver • Selenium2Driver

  36. Pieces that make up ‘Behat’ • Behattests the behavior of your application described in special language called Gherkin. • Gherkin is a Business Readable, Domain Specific Language created especially for behavior descriptions. • Mink is an open source acceptance test framework for web applications, written in PHP 5.3 • No Javascript driver • Sahi Proxy Driver • Headless JS Driver • SeleniumDriver • Selenium2Driver

  37. Pieces that make up ‘Behat’ • Behattests the behavior of your application described in special language called Gherkin. • Gherkin is a Business Readable, Domain Specific Language created especially for behavior descriptions. • Mink is an open source acceptance test framework for web applications, written in PHP 5.3 • No Javascript driver • Sahi Proxy Driver • Headless JS Driver • Selenium! Driver • Selenium2 Driver

  38. Pieces that make up ‘Behat’ • Behattests the behavior of your application described in special language called Gherkin. • Gherkinis a Business Readable, Domain Specific Language created especially for behavior descriptions. • Minkis an open source acceptance test framework for web applications, written in PHP 5.3 • No Javascript driver • Sahi Proxy Driver • Headless JS Driver • SeleniumDriver • Selenium2Driver

  39. Nitty Gritty details Or how the heck does this work? • Sites we don’t control (blackbox) – Wikipedia demo example • Sites we do control (but still blackbox) – local Drupal 8 install demo example • Whitebox – not demoing today

  40. Why should Drupal embrace BDD? • Benefits to community • Better testing of all of the code, especially code you didn’t author yourself • Benefits to developer • Write simpler tests and get cleaner tests • improve your code, and your overall site especially with help of non-tech folks • Benefits to end user and site owners • PROFIT! Business focus = productive changes! • Better communication of needs and goals

  41. Which behat‘module’ to use? Modules at Drupal.org: • behat: It allows you to write feature tests for a Drupal site using SimpleTest API functions and assertions in step definitions. • behat_testing: Integrates behat with drush and adds own step definitions for Drupal • drupalextension: Provides a DrupalExtension with Drupal step definitions. • doobie: used to test Drupal.orgsite w/ behat.

  42. Drupal.org • Why does Drupal.orgnow use Behat? • Developers don’t get access to the main Drupal boxes… • Breaking Drupal.org is a bad thing! • Updating from D5 to D6 to D7 (to D8…)? Don’t want to lose features, functionality, etc…

  43. Drupal/BehatResources • Behat Drupal Group http://groups.drupal.org/behat • Melissa’s articles in Drupal Watchdog • http://drupalwatchdog.com/2/2/behat-mink • Slide shows • http://bdd.alexo.it/slides/dcessen.html • https://portland2013.drupal.org/session/behat-behavioral-driven-development-and-selenium-drupal

  44. Thank you to… • The entire team at BioRAFT and especially • Nathan & Ben, the CEO & CTO who ‘get it’ • Jeremy, Justin, Dan, Diliny, & Michelle • Behatcoders everywhere and especially • Konstantin Kudryashov(everzet) • Drupal coders everywhere and especially • Melissa Anderson (eliza411)

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