Mozilla: Under the Hood

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    Mozilla: Under the Hood - Presentation Transcript

    1. Mozilla Under the Hood
    2. Presented by Marcia Knous Team Mozilla QA
    3. Brief History of Mozilla
    4. Mozilla is... A global effort to promote choice and innovation on the Internet An open source project
    5. Software for the people, by the people
    6. NY Times two page ad December 16, 2004
    7. What fuels us?
    8. Community ‣ 2008 Mozilla Summit
    9. We build on top of each other
    10. A Good Day at Mozilla :)
    11. The tree is green...
    12. ...So what do we test?
    13. Everything! • Firefox Release builds • Including Firefox Localizations • Firefox Nightly Builds • Firefox Mobile (Fennec) • Firefox web properties • Thunderbird
    14. What do we focus on? •Basic functionality •Standards Compliance •Performance
    15. How do we do this? •Automated Tests •Manual Tests
    16. The Mozilla Platform
    17. Automated Tests
    18. Unit Tests xpcshell Compiled code
    19. XPC Shell ‣Anything available to the XPCOM layer (through scriptable interfaces) can be tested with xpcshell. ‣Limitations: Can’t easily open windows, test chrome, work with HTML parser or the DOM ‣
    20. Graphical & Interactive Tests Mochitest Chrome Tests Reftest Crash Tests
    21. Content Mochitest Highlights Runs tests in a full browser environment with chrome privileges Can simulate user input (keyboard/mouse) Good for testing things such as password manager and popup blocking
    22. Mochichrome Highlights Elevated privileges allow access to XPCOM components and services Uses simple JS function calls to aid in correctness Useful for testing UI components such as: Download Manager/Addons Manager
    23. Browser Chrome Tests Tests are written as JS files Uses simple JS function calls to aid in correctness Useful for testing Browser UI features
    24. Crash Tests Based on the reftest framework The test works by loading the file and completing without crashing or asserting
    25. Reftests ➡Layout Engine Visual Tests ➡Results are reported as Pass, Fail or Unexpected
    26. Desired Result of the test
    27. Talos http://graphs.mozilla.org
    28. Leak Tests
    29. Topsite Testing
    30. Other Tests ➡Fuzz Tests ➡Accessibility ➡JS Tests
    31. Mozmill Functional UI testing for Mozilla Applications.
    32. Manual Tests
    33. Litmus ‣Open 24/7 for your testing enjoyment ‣Test cases written by Mozilla QA & community
    34. Litmus Full Functional Tests
    35. Litmus Basic Functional Tests
    36. Litmus Smoketests
    37. Manual Debugging Tools The Error Console is your friend!
    38. Even with all these tests...
    39. There is no magic bullet
    40. The bug that forced FF 3 RC2
    41. There is humor in testing software...
    42. Keynote software error Common sight while preparing this presentation, but at least I can send feedback...
    43. Who tests? Fosdem, 2009
    44. The Community Nightly Testers - ~ 10K Betatesters - ~ 3 Million Web Developers Mozilla QA Team - 18
    45. The QA Companion Useful add on that allows the community to test
    46. An Example of Code Coverage
    47. How do we get feedback?
    48. Bugzilla Community Members file bugs and help triage The Mozilla “kitchen”
    49. Hendrix Feedback link is postioned prominently on Release Notes and first run page Blocker bug for Firefox 3 was found through this feedback mechanism
    50. First run page before we changed the version to Firefox 3.5... But nonetheless a good example of a the direct feedback links (Bugzilla, Hendrix) on first run page
    51. Twitter Tweets regarding issues with Firefox are reported and monitored
    52. Breakpad Crash reporting tool
    53. MozillaZine Firefox Forum Discussions At one time was the premier Mozilla news site
    54. Newsgroups - moz.dev.quality
    55. QMO - The QA Portal Central repository for project info and documents
    56. reporter.mozilla.org Linked directly from the Help menu Allows you to report a broken website right from the UI
    57. So who reviews all this feedback? Sometimes tough to separate the “noise” from the real issues
    58. We give back...
    59. Songbird Miro Blackbird Flock Instantbird Celtx Seamonkey Komodo KompoZer Nokia’s Internet Tablet Wyzo
    60. Projects/Technologies Projects Technologies Firefox Gecko Camino XULRunner Bugzilla Mozilla Labs Fennec http://labs.mozilla.com/projects/ Lightning and Sunbird Seamonkey Thunderbird
    61. The end...questions?
    62. Resources/Background material The History of Mozilla: https://library.mozilla.org/The_History_of_Mozilla QMO: http://quality.mozilla.org/ Litmus: https://litmus.mozilla.org/ Mozmill: http://code.google.com/p/mozmill/ Developer info: https://developer.mozilla.org/ Mozilla Labs: http://labs.mozilla.com/ Tinderbox for Firefox 3.5: http://tinderbox.mozilla.org/showbuilds.cgi? tree=Firefox3.5
    63. Resources/Background material Get the Firefox Beta: http://www.mozilla.com/en-US/firefox/all-beta.html QA Companion: https://addons.mozilla.org/en-US/firefox/addon/5428 Hendrix: http://hendrix.mozilla.org/ Mozilla support: http://support.mozilla.com/en-US/kb/ Mozilla Digital Memory Bank: http://chnm.gmu.edu/mozilla-digital-memory-bank/ Marcia’s Firefox Robot Wars Video: http://www.youtube.com/watch? v=OnZClPMoYEY
    64. Photo credits Jaguar Inline 6 Car Engine Photo courtesy of dave_7. Licensed under a Creative Commons license - http:// www.flickr.com/photos/daveseven/250993044/ Bullet photo courtesy of JinglyJon. Licensed under a Creative Commons license : http://www.flickr.com/ photos/jinglyjon/180600454/

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