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Testing Ext JS 5 Applications with Siesta

C3d3ad4d0758d38bf60f1a648bd0fe02?s=47 Mats Bryntse
December 02, 2014

Testing Ext JS 5 Applications with Siesta

From SenchaDay 2014 in Karlsruhe


Mats Bryntse

December 02, 2014


  1. Copyright Sencha Inc. 2014 Mats Bryntse, Bryntum Testing Ext JS

    5 Apps @Bryntum
  2. Intro | DESCRIPTION Who am I?

  3. Webinar | Content Unit tests UI tests Continuous Integration •

    Writing a unit test • Using PhantomJS • Hello world sample • Event recorder intro • Testing an Ext JS cmp • Recording a UI test • TeamCity • Code Coverage • Statistics • Cloud Testing
  4. Intro | DESCRIPTION Less Theory, More Real World

  5. Intro | WHY Why Testing?

  6. Intro | WHY Hands up: Who is testing their JS?

  7. Intro | WHY

  8. Intro | WHY 1. Productivity & confidence in code 2.

    Frameworks contain bugs 3. So does your code (and mine) 4. Refactoring & code handover 5. Fix bugs once
  9. Intro | TERMINOLOGY Terminology: what does testing mean for a

    JS developer?
  10. Intro | TERMINOLOGY Unit tests, UI tests, Application tests..?

  11. Intro | TERMINOLOGY Unit tests App Tests UI tests

  12. Testing With Siesta Introduction

  13. Intro | Testing with Siesta • runs in any browser

    • is written in plain JS • is sandboxed by default A Siesta test…
  14. Intro | Testing with Siesta • can do both UI

    and unit testing • can be automated using PhantomJS or Selenium WebDriver • can detect leaked global variables A Siesta test…
  15. Intro | Testing with Siesta describe('A simple Model test', function

    (t) {
 t.it('Should do something', function(t) {
 // Test things

  16. Unit Tests Red, Green, Refactor

  17. Unit tests | Intro •Unit tests usually only involve “raw”

    JS •Run very fast •Perfect for pre-commit hooks •Disable sandboxing if possible
  18. Unit tests | Intro •Should be your #1 priority •Cover

    your most important JS classes •Run often, before commit, daily, nightly. •Use TDD approach + BDD style for readability
  19. Unit tests | TDD basics 1. Make the unit test

    fail 2. Implement 3. Make the test pass 4. Refactor, Repeat
  20. Unit tests | Writing a unit test Unit testing demo

  21. Testing your UI Functional testing

  22. UI tests | Intro Manually writing UI tests takes time

  23. UI tests | Intro UI tests are more fragile &

    run slower than unit tests
  24. UI tests | Intro Understanding CSS and ComponentQuery is key

  25. UI tests | Intro •UI “unit test” of a single

    UI component •Or Application test, open index.html and test it Two main types of UI tests
  26. UI tests | Intro UI Unit test demo

  27. UI tests | Intro Siesta Event Recorder

  28. UI tests | Event recorder •Great for application tests •Records

    user actions: clicks, types, drag drop •Exports actions to a Siesta test case •Can be used by a non-programmer •Big timesaver
  29. UI tests | Event recorder Let’s try the recorder

  30. UI tests | Monkey tests Monkey testing

  31. UI tests | Monkey tests •Random UI testing •Clicks, drags

    etc. in your UI •Finds unhandled exceptions •Free testing help. 0€
  32. UI tests | Monkey tests Cost breakdown: 5€ * 0

    = 0 5€
  33. Continuous Integration TeamCity, Code Coverage & Statistics

  34. Continuous Integration | Intro •Bryntum uses TeamCity, Siesta integrates with

    others (Jenkins…) •Test suites run every 2 hours in Chrome •Full test suites executed nightly •Reports, statistics, charts and code coverage
  35. Continuous Integration | TeamCity Let’s checkout TeamCity

  36. UI tests | Cloud testing So…running in multiple browsers?

  37. Continuous Integration | Cloud testing •Need to create Virtual Machines

    for each version of IE •Total: Chrome, Safari, FF, IE 7-11 => 7 VMs •Managing such a farm can be very time consuming
  38. Continuous Integration | Cloud testing •Siesta integrates with both BrowserStack

    and Sauce Labs •Run tests easily in any OS and Browser combination •No need to setup your own VM farm •Read more on the Bryntum blog…
  39. Continuous Integration | Cloud testing Launching tests in BrowserStack

  40. Rounding up | Links •bryntum.com/products/siesta •bryntum.com/docs/siesta •teamcity.bryntum.com/guest •browserstack.com/ •saucelabs.com/

  41. Rounding up | Questions Questions? Twitter: @Bryntum