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Testing Best Practices

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In this session, we will explore

In this session, we will explore


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  • 1. Testing Best Practices Kevin Whinnery Platform Evangelist Appcelerator Inc. @kevinwhinnery kwhinnery@appcelerator.com
  • 2. Testing Best Practices • The Challenge of Testing Rich Client Applications • Levels of Testing • Titanium Testing Tools • The Future of Testing Titanium Apps • Q&A
  • 3. The Challenge of RichClient Testing
  • 4. Rich Client Testing ChallengesA Few Challenges: Testing rich client applications• Relevant tests? remains a challenge today due to• Tooling? the visual and human aspects of• Automation?• Production client applications. environment?• Human interaction?
  • 5. How relevant are our tests? • Model tier testing is highly doable, and test friendly • UI testing is hard to do in a meaningful way: • Does code work in a long- running scenario? • If I programmatically build a UI structure, how close is that to the real UI structure at runtime? • I can test object properties, but reliably ensuring visual integrity is
  • 6. What tools do we use? • In JS, client side test tools are somewhat limited in functionality and scope • What is available is more geared toward simple applications • …and typically tied to the browser, in the case of JavaScript
  • 7. How do we automate tests? • Scripting user interaction is difficult, especially in native mobile apps • Requires multi-platform environment • Requires some sort of connection to a running simulator or device, which must also be scripted
  • 8. How close are we to prod conditions? • A simulator only goes so far • Need to test on a variety of devices • Mobile is a hostile and volatile environment: • Data connectivity? • Network speeds? • Software/hardware combinations (iOS has this pain now too) • Background processes? • Geographic locations?
  • 9. How is our “look and feel”? • Does our app “look right” with different data sets? • Are our buttons responsive enough, or do loading screens take too long? • Are there operations which are unintuitive, or error prone? • Are the properties of the UI we are changing and animating actually reflected in the UI how we expect?
  • 10. These problems canall be overcome, buttesting can become aclassic strugglebetween…
  • 11. Time
  • 12. Returns (Quality)
  • 13. And Resources
  • 14. Diminishing ReturnsConsider: Test automation can become• How long will I extremely expensive. Frameworks support this need to be maintained, infrastructure app?• How useful is the needs to be created, and time needs test automation I am adding – how to be spent writing, scripting, or true to life are recording tests. my test results?• Automation versus human Make sure the investment is testing justified.
  • 15. Levels of Testing
  • 16. Levels of TestingTypes of Testing: Depending on the scope, shelf• Ad hoc life, and team size for every• Automated Unit application, only certain levels of Testing• Continuous testing may be needed. Integration• Automated Functional Testing You probably already know these by• Crowdsourcing some name, but let’s establish a common vocabulary.
  • 17. Levels of TestingTypes of Testing: Ad hoc testing by a single tester or• Ad hoc group of testers may be sufficient for• Automated Unit small applications with a short shelf Testing• Continuous life. Integration• Automated Functional Testing• Crowdsourcing
  • 18. Levels of TestingTypes of Testing: Programmatic unit testing can• Ad hoc provide a baseline comfort level with• Automated Unit code in a project, giving the Testing• Continuous developer knowledge that public Integration• Automated APIs have not regressed and are Functional Testing working as expected.• Crowdsourcing
  • 19. Levels of TestingTypes of Testing: Continuous integration can make• Ad hoc use of an existing suite of automated• Automated Unit unit tests, and ensure that all test Testing• Continuous suites are passing as new code is Integration• Automated committed to the project. Functional Testing• Crowdsourcing Continuous integration becomes especially useful as a team increases in size and activity.
  • 20. Levels of TestingTypes of Testing: Automated functional testing tests• Ad hoc actual application interactions, and• Automated Unit inspects the state of an application Testing• Continuous at known points. Integration• Automated Functional Testing This type of testing is sometimes• Crowdsourcing referred to as “record and play” testing.
  • 21. Levels of TestingTypes of Testing: Crowdsourcing deploys an• Ad hoc application to real humans around• Automated Unit the world, who can test applications Testing• Continuous on different data Integration• Automated networks, devices, and locations to Functional Testing provide real-world feedback on• Crowdsourcing application functionality. Can also be employed to provide feedback on look and feel and other human elements.
  • 22. Where We Are TodayTypes of Testing: Appcelerator (and our community)• Ad hoc have developed test automation• Automated Unit tools to provide a baseline level of Testing• Continuous comfort with application functionality. Integration• Automated Functional Testing The testability of your application• Crowdsourcing can be greatly enhanced by employing modular design.
  • 23. Demo: TestableTitanium apps withbehave.js
  • 24. Where We’ll Be TomorrowTypes of Testing: Appcelerator, the community, and• Ad hoc our commercial partners are• Automated Unit collaborating on testing solutions Testing• Continuous across the board. Integration• Automated Functional Testing Visit with SOASTA and uTest in the• Crowdsourcing hallways!
  • 25. To Sum Up • Test automation is a great tool for ensuring quality • For rich client apps, useful tests have always been a challenge • Choose the level of testing appropriate for the project • Join us in reducing barriers to testing and building awesome tools
  • 26. To Sum Up Downloads/Resources: • http://bit.ly/ • codestrong_src • ti_test_slides
  • 27. Kevin Whinnery @kevinwhinnerykwhinnery@appcelerator.com