TDD & Continuous Integration with Magento

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1. TDD & CONTINUOUS INTEGRATION WITH MAGENTO Manuele Menozzi Senior PHP

   Developer @ Proud & member First Magento extension written in the 2009 Email: / Twitter: Webgriffe® GrUSP PUG MoRe mmenozzi@webgriffe.com @mmenozzi

2. TEST DRIVEN DEVELOPMENT The repetition of a very short development

   cycle

3. TEST DRIVEN DEVELOPMENT BENEFITS You can write small feature's subsets

   (don't worry about all the complexity) All features are tested You reduce bugs and regressions rate Your code stays clean Your code is documented And last but not least, you're more confident in making changes!

4. TEST DRIVEN DEVELOPMENT IN PHP PHPUnit github.com/sebastianbergmann/phpunit/

5. UNIT TESTS WITH MAGENTO Magento => Hardcoded dependencies => Testing

   hell c l a s s V e n d o r _ M o d u l e _ M o d e l _ S o m e t h i n g e x t e n d s M a g e _ C o r e _ M o d e l _ A b s t r a c t { p u b l i c f u n c t i o n d o S o m e t h i n g W i t h P r o d u c t ( $ p r o d u c t I d ) { $ p r o d u c t = M a g e : : g e t M o d e l ( ' c a t a l o g / p r o d u c t ' ) - > l o a d ( $ p r o d u c t I d ) ; / / d o s o m e t h i n g w i t h $ p r o d u c t } }

6. UNIT TESTS WITH MAGENTO We have to refactor, for example

   with dependency injection… c l a s s V e n d o r _ M o d u l e _ M o d e l _ S o m e t h i n g e x t e n d s M a g e _ C o r e _ M o d e l _ A b s t r a c t { p r o t e c t e d $ p r o d u c t M o d e l ; p u b l i c f u n c t i o n s e t P r o d u c t M o d e l ( M a g e _ C a t a l o g _ M o d e l _ P r o d u c t $ p r o d u c t M o d e l ) { $ t h i s - > p r o d u c t M o d e l = $ p r o d u c t M o d e l ; } p u b l i c f u n c t i o n d o S o m e t h i n g W i t h P r o d u c t ( $ p r o d u c t I d ) { $ p r o d u c t = $ t h i s - > p r o d u c t M o d e l - > l o a d ( $ p r o d u c t I d ) ; / / d o s o m e t h i n g w i t h $ p r o d u c t } }

7. UNIT TESTS WITH MAGENTO … so we can test it

   with something like this: c l a s s V e n d o r _ M o d u l e _ T e s t s _ U n i t _ S o m e t h i n g T e s t e x t e n d s \ P H P U n i t _ F r a m e w o r k _ T e s t C a s e { p u b l i c f u n c t i o n t e s t D o S o m e t h i n g W i t h P r o d u c t ( ) { $ p r o d u c t M o d e l M o c k = $ t h i s - > g e t M o c k ( ' M a g e _ C a t a l o g _ M o d e l _ P r o d u c t ' ) ; $ p r o d u c t M o d e l M o c k - > e x p e c t s ( $ t h i s - > o n c e ( ) ) - > m e t h o d ( ' l o a d ' ) - > w i t h ( 1 ) - > w i l l ( $ t h i s - > r e t u r n V a l u e ( n e w M a g e _ C a t a l o g _ M o d e l _ P r o d u c t ( ) ) ) ; $ s o m e t h i n g M o d e l = n e w V e n d o r _ M o d u l e _ M o d e l _ S o m e t h i n g ( ) ; $ s o m e t h i n g M o d e l - > s e t P r o d u c t M o d e l ( $ p r o d u c t M o d e l M o c k ) ; $ s o m e t h i n g M o d e l - > d o S o m e t h i n g W i t h P r o d u c t ( 1 ) ; / / a s s e r t t h a t s o m e t h i n g h a s b e e n d o n e } }

8. INTEGRATION & FUNCTIONAL TESTS WITH MAGENTO Magento Test Automation Framework

   Backport of Magento 2 Tests Mage-Test MageSpec EcomDev_PHPUnit github.com/magento/taf github.com/techdivision/TechDivision_MagentoUnitTesting github.com/MageTest/Mage-Test github.com/MageHack/MageSpec github.com/EcomDev/EcomDev_PHPUnit

9. ECOMDEV_PHPUNIT Magento extension Doesn't change core files Separate database connection

   is used for tests Different levels of test integration

10. ECOMDEV_PHPUNIT Enable an extension for testing < ! - -

    a p p / c o d e / l o c a l / V e n d o r / M o d u l e / e t c / c o n f i g . x m l - - > < p h p u n i t > < s u i t e > < m o d u l e s > < V e n d o r _ M o d u l e / > < / m o d u l e s > < / s u i t e > < / p h p u n i t >

11. ECOMDEV_PHPUNIT DIFFERENT LEVELS OF TEST INTEGRATION EcomDev_PHPUnit_Test_Case is for testing

    models, blocks and helpers EcomDev_PHPUnit_Test_Case_Config is for testing your module configuration EcomDev_PHPUnit_Test_Case_Controller is for testing your controller actions and layout rendering process

12. ECOMDEV_PHPUNIT Fixtures support (YAML files, database purge) Expectations support (YAML

    files) Data providers support (YAML files) Indexing control (@doNotIndex & @doNotIndexAll) Useful test doubles getModelMock(), getResourceModelMock(), getBlockMock(), getHelperMock(), replaceByMock(), … Useful assertions assertEventDispatched(), assertEventDispatchedExactly(), assertEventDispatchedAtLeast(), …

13. ECOMDEV_PHPUNIT CONFIGURATION TESTING Many useful configuration assertions: Class Alias Assertions

    assertBlockAlias(), assertModelAlias(), assertHelperAlias(), … Module Assertions assertModuleCodePool(), assertModuleDepends(), assertModuleVersion(), … Layout Assertions assertLayoutFileDefined(), assertLayoutFileExists(), assertLayoutFileExistsInTheme(), … Event Observer Assertions assertEventObserverDefined(), assertEventObserverNotDefined(), … Config Node Assertions assertConfigNodeHasChild(), assertConfigNodeHasChildren(), assertConfigNodeContainsValue(), …

14. ECOMDEV_PHPUNIT CONTROLLER TESTING Dispatch of controller actions $this->dispatch('customer/account/create'); Response object

    handling & assertions getSentHeaders(), getOutputBody(), assertResponseHttpCode(), assertRedirect(), … Layout assertions assertLayoutLoaded(), assertLayoutBlockCreated(), assertLayoutBlockTypeOf(), assertLayoutBlockParentEquals(), assertLayoutBlockAfter(), … Routing assertions assertRequestDispatched(), assertRequestRoute(), assertRequestControllerName(), …

15. CONTINUOUS INTEGRATION What is it? Continuous integration (CI) is the

    practice, in software engineering, of merging all developer working copies with a shared mainline several times a day.

16. CONTINUOUS INTEGRATION Why do it? Reduce risk Reduce costs Confidence

    Tested builds Reduce repetitive tasks Quality assurance

17. CONTINUOUS INTEGRATION Requirements Source code repository Automated self-testing build Every

    commit triggers a build [ Automated deploy after every successful build ]

18. MAGENTO MODULE CONTINUOUS INTEGRATION We have to: Download and install

    a specific version of Magento Install the module Install EcomDev_PHPUnit Run tests Repeat the above steps for other Magento versions

19. MAGENTO MODULE CONTINUOUS INTEGRATION We can do it with MageCI

    by EcomDev ( ): github.com/EcomDev/MageCI $ m a g e - c i i n s t a l l $ m a g e _ d i r $ m a g e _ v e r s i o n $ d b n a m e - u $ d b u s e r - p $ d b p a s s \ - o - c - t - r h t t p : / / m a g e - c i . e c o m d e v . o r g $ m a g e - c i i n s t a l l - m o d u l e $ m a g e _ d i r . $ m a g e - c i i n s t a l l - m o d u l e $ m a g e _ d i r \ h t t p s : / / g i t h u b . c o m / E c o m D e v / E c o m D e v _ P H P U n i t . g i t $ m a g e - c i p h p u n i t $ m a g e _ d i r

20. MAGENTO MODULE CONTINUOUS INTEGRATION JENKINS EXAMPLE jenkins-ci.org Put previous commands

    in a bash script or an ANT build Multi-configuration job on Jenkins User-defined axis -> mage_version = 1.5.1.0, 1.6.2.0, 1.7.0.2, [...]

21. MAGENTO MODULE CONTINUOUS INTEGRATION JENKINS EXAMPLE

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