Cucumber/Calabash on the Titanium platform

Learn more about testing in general, the awesomeness that is Cucumber and how to use it yourself when developing your next Titanium application!

Originally presented during the December 2014 Dutch Titanium Meetup

Transcript

1. Cucumber/Calabash on the Titanium platform
2. Cucumber A Behavior-Driven Development (BDD) Acceptance test framework
3. Ronald Treur W H O A M I Freelance developer - Lost Particle Co-founder Snowciety (app) 3+ yrs Titanium experience Titan @ronaldtreur
 ronald@lostparticle.net github.com/RonaldTreur
4. Let’s backtrack a bit…
5. Unit Testing • Testing your software design • Tests isolated units of code and show correctness • Unit: smallest testable part of an application (often a single function/method or class) • Test cases are independent from each other • Each test represents a contract a unit must satisfy
6. Unit Testing Benefits • Living documentation • Facilitates change (refactoring)
7. Test Driven Development (TDD) Write a failing test Write code to fix the test Start here!
8. TDD Testing Benefits • Find problems early • Design Document
9. Behavior Driven Development (BDD) • Best practices used in TDD (coined by Dan North) • Tests are human readable, start with should and are NOT called tests (but behavior, or specifications) • (Unit) Testing frameworks that facilitate BDD:
 Jasmine, Mocha
10. Acceptance Testing • Testing business logic & UI validation • Meant to verify completeness of a user story
11. Testing flavors Unit testing makes sure you build the thing right Acceptance testing makes sure you build the right thing
12. Agile Test Automation Pyramid
13. Cucumber • Test automation tool - Runs automated acceptance tests • Specification by example • Bridge gap between technical & non-technical team members (developers - stakeholders)
14. Cucumber • Originally written in (and for) Ruby • Nowadays available for a various platforms, like Java, Javascript and C# • Available in over 40 languages (including Dutch)
15. Outside-in Testing • Start with a failing Cucumber test • high level / functional (user story) • Write a failing Jasmine/Mocha test • low level / technical
16. Outside-in Testing Write failing cucumber test Write failing unit test Fix test
17. Gherkin • Your Cucumber feature files are structured using a syntax dubbed ‘Gherkin’ • Human readable specification language • BDD
18. Syntax Given this When something changes/occurs Then that
19. Syntax Given this
 And this
 When something changes/occurs
 And that
 Then that
20. Example Feature: Sign up
 Sign up should be quick and friendly. 
 
 Scenario: Successful sign up
 New users should get a confirmation email and be greeted personally by the site once signed in. Given I have chosen to sign up
 When I sign up with valid details
 Then I should receive a confirmation email
 And I should see a personalized greeting message
21. Calabash An interface between Cucumber and iOS/ Android applications
22. Calabash • Open source • Updated regularly • Created & maintained by Xamarin • iOS and Android support only
23. Ti Calabash An interface between Cucumber and Titanium iOS/Android applications
24. Ti Calabash • Open source • Still in early stages • Created & maintained by Codexlabs & Appersonlabs • iOS and Android support only
25. Prerequisites • Ruby v2 (or higher) • Xcode CLI tools • A Mac (iOS)
26. Installation npm -g ti-calabash ! Don’t install using sudo!* The installation will ask for your sudo-password during installation. If you use sudo yourself as well, this will fail.
 * See: http://howtonode.org/introduction-to-npm
27. Execution Go to a folder containing a Titanium app ti calabash --platform=ios ti calabash --platform=android
28. Execution • Asks you a few straightforward (hopefully) questions • Creates a features-folder in your project, with example features and everything needed to interpret them • Runs the example features and shows you the output • Saves (any) screenshots into your build-folder
29. Demo
30. Check it out yourself: http://www.slideshare.net/sophrinix/ticalabash-fully-automated-testing-ticonf-eu-2014 ! https://github.com/appersonlabs/TiCalabash