Spock Extensions Anatomy
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Spock Extensions allow to integrate Spock Specifications with other thid-party libraries, like Spring, Guice, Grails or Tapestry. They allow to control tests execution, their order and modify test results according to your custom criteria. This presentation provides all the details required for implementing your very own Spock extensions. Global extensions, annotation-driven extensions, Spock interceptors and listeners are covered.
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Spock Extensions Anatomy
- 1. 1
- 2. Goldin Evgeny TeamCity and YouTrack Evangelist Groovy practitioner GroovyMag writer Blogger Open-‐Source developer @evgeny_goldin 2
- 3. Agenda 3
- 4. Agenda Why extending Spock? Global and annotation-‐driven extensions Interceptors and Listeners Demos and examples Cookbook and gotchas 4
- 5. Why? 5
- 6. Why Extending Spock? Integrate - @Rule, @Autowire d 6
- 7. Why Extending Spock? Integrate - @Rule, @Autowire d Helper fields - @TestDir, @TempDir 7
- 8. Why Extending Spock? Integrate - @Rule, @Autowire d Helper fields - @TestDir, @TempDir Control - @Ignore, @FailsWith 8
- 9. Why Extending Spock? Integrate - @Rule, @Autowire d Helper fields - @TestDir, @TempDir Control - @Ignore, @FailsWith Report - @Unroll, ProfilerExtension 9
- 10. Spock Dictionary 10
- 11. Spock Dictionary specification 11
- 12. Spock Dictionary fixture methods 12
- 13. Spock Dictionary fields 13
- 14. Spock Dictionary feature methods 14
- 15. Spock Dictionary iterations 15
- 16. Extensions Dictionary Global extensions Annotation-‐driven extensions Interceptors Listeners 16
- 17. Extensions Dictionary Listeners OptimizeRunOrderExtension @Stepwise Interceptors Global Annotation-‐Driven RuleExtension @Timeout 17
- 18. Extensions Dictionary Listeners OptimizeRunOrderExtension @Stepwise Interceptors Global Annotation-‐Driven RuleExtension @Timeout 18
- 19. Global Extensions src/main/resources src/test/resources META-INF/services/org.spockframework.runtime.extension.IGlobalExtension 19
- 20. Global Extensions dependencies { ... testCompile 'com.github.goldin:spock-extensions:0.1.4' } Or dependencies { ... testRuntime 'com.github.goldin:spock-extensions:0.1.4' } 20
- 21. Global Extensions 21
- 22. SpecInfo Read fields, feature and fixture methods Add interceptors Add listeners Re-‐order, filter, sort, skip, exclude features 22
- 23. SpecInfo r e methods lxture n Read fields, feature ai fi o sio f nd P r Add interceptors n eskip, exclude features Add listeners x t E Re-‐order, filter, sort, 23
- 24. Annotation Driven Extension 24
- 25. Annotation Driven Extension 25
- 26. Annotation Driven Extension 26
- 27. Annotation Driven Extension ss e le at S t s . v u l te f S ta 27
- 28. Annotation Driven Extension re no Ig th @ Wi @ 28
- 29. Listeners Added to spec Before and after spec, feature, iteration On error Skipped spec or feature Listen passively, do not throw exceptions Get passed official test results 29
- 30. Interceptors Added to spec, feature or fixture methods Intercept method invocation invocation.proceed() Can change test outcome and behavior Can throw exceptions But .. following interceptors can do the same 30
- 31. Interceptors e Added to spec, feature or fixture methods m i Intercept method invocation T @ invocation.proceed() Can change test outcome and behavior Can throw exceptions But .. following interceptors can do the same 31
- 32. Gotchas Use the right tool for the job Attach interceptors only where they belong Do not throw exceptions from listeners Reuse listeners or interceptors with caution Mark feature methods as skipped if needed Skipped (skip a few) vs. excluded (run a few) 32
- 33. Cookbook Extend AbstractAnnotationDrivenExtension Fights Misplaced Annotation Extend AbstractMethodInterceptor Extend AbstractRunListener 33
- 34. To Summarize ... 34
- 35. Why Extending Spock? Integrate - @Rule, @Autowire d Helper fields - @TestDir, @TempDir Control - @Ignore, @FailsWith Report - @Unroll, ProfilerExtension 35
- 36. Extensions Dictionary Global extensions Annotation-‐driven extensions Interceptors Listeners 36
- 38. Additional Resources github.com/spockframework/spock/ evgeny-‐goldin.org/javadoc/spock/ github.com/evgeny-‐goldin/spock-‐example Blog post: Annotation Driven Extensions With Spock GroovyMag December 2011: Extending Spock 38
- 39. Q & A 39
- 40. See you at Gr8Conf 2013! 40