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Java Testing With Spock - Ken Sipe (Trexin Consulting)
- 1. NFJS Software Symposium Series 2013 Spock - The Logical Enterprise Testing Tool Ken Sipe
- 2. About Speaker Spock Testing http://kensipe.blogspot.com/ http://del.icio.us/kensipe twitter: @kensipe ken.sipe@gmail.com Developer: Embedded, C++, Java, Groovy, Grails, C#, Objective C Speaker: JavaOne 2009 Rock Star, NFJS, JAX Microsoft MCP Sun Certified Java 2 Architect Master of Scrums Agile Coach Instructor: VisiBroker CORBA Rational Rose, OOAD
- 3. Agenda Spock Testing n Testing n Introduction n Mocking to Spock
- 5. Spock is... n testing framework... n based Spock Testing on Groovy n fully compatible with JUnit n result of learnings from ¨RSpec, BDD, JUnit 5
- 6. Spock Can... n Reduces n Make n Be Spock Testing lines of code tests more readable extended 6
- 8. Taxonomy of JUnit Spock Testing
- 9. Spock Testing JUnit Pain Points? 9
- 10. Unit testing needs Spock Testing n Concise, Clear and Readable n Promote “user” thinking ¨context ¨stimulus ¨expectations n Productivity 10
- 12. Taxonomy of GroovyTestCase Spock Testing
- 13. Groovy and Testing Spock Testing
- 14. Groovy Power Assert Condition not satisfied: interest == calc.calculate(amt, year) | | | | | | 25.0 | | 20.0 100 4 | com.math.SimpleInterestCalculator@606e1dec false Spock Testing
- 15. Groovy Improvements Spock Testing n Concise, Clear and Readable n Promote “user” thinking ¨context ¨stimulus ¨expectations n Productivity 15
- 17. Spock Spock Testing n Programmers Environment ¨Groovy n Promotes Clarity ¨structural blocks ¨removes noise 17
- 18. Why use Spock? Spock Testing n Expressive testing language n Easy to learn n Usable from unit to end-to-end n Leverages Groovy n Runs with JUnit Runner ¨IDE ¨CI 18
- 19. Spock Testing Taxonomy of a Spec 19
- 21. Terms Spock Testing n Specification ¨compare to TestCase or GroovyTestCase ¨Instructs JUnit to run with Sputnik (JUnit runner) n Fields ¨initialized for each “test” ¨think “setup” ¨not shared between feature methods 21
- 22. More Fields Spock Testing n Shared ¨Setup once ¨think setupSpec() n statics ¨only use for constants 22
- 23. Fixture Methods Spock Testing n before / after a feature n before / after a spec n optional 23
- 24. Feature Methods Spock Testing n “heart” of spec n four phases ¨setup the features fixture ¨provide stimulus to system ¨describes the response ¨clean up 24
- 25. Blocks Spock Testing given: preconditions, data fixtures when: actions that trigger some outcome then: makes assertions about outcome expect: short alt to when & then where: applies varied inputs and: sub-divides other blocks setup: alias for given cleanup: post-conditions, housekeeping 25
- 26. Common Blocks Spock Testing n When / Then / Where n Given / When / Then 26
- 27. Blocks Spock Testing n setup ¨must be first ¨must be the only ¨no special semantics ¨label is optional ¨label given: is an alias 27
- 28. When / Then Blocks n used together ¨ possible n then Spock Testing to have many per feature restrictions ¨ conditions ¨ exception conditions ¨ automatic asserts ¨ interactions ¨ variable defs 28
- 29. Conditions n checking Spock Testing for exceptions 29
- 30. Throwing an Exception NOT! Spock Testing 30
- 31. Mocks and Expectations Spock Testing 31
- 32. Cleanup on Feature X n cleanup Spock Testing block ¨only followed by a where block ¨no repeats 32
- 33. Where Blocks Spock Testing ¨last in a method ¨no repeats ¨used for data-driven features 33
- 34. Helper Methods ¨either Spock Testing return a boolean n or ¨assert 34
- 35. Spock Testing Specification Functions and Spock.lang.* 35
- 36. Spock Testing n old() n thrown() n with / notThrown {} 36
- 38. Spock.lang.* Ignoring Stuff Spock Testing @Requires @IgnoreIf @Ignore @IgnoreRest 38
- 40. Built-in Extensions: AutoCleanup Spock Testing @AutoCleanup @AutoCleanup(‘dispose’) @AutoCleanup(quite=true) 40
- 41. Built-in Extensions: Timeout Spock Testing @Timeout @Timeout(10) @Timeout(value=10, unit=TimeUnit.MILLISECONDS) 41
- 42. Built-in Extensions: Stepwise Spock Testing @Stepwise 42
- 46. References n Getting Spock Testing Spock ¨http://code.google.com/p/spock/ n Source from Presentation ¨https://github.com/kensipe/spock-demos-nfjs 46
- 47. Summary n Closing and Q&A ¨ Please fill out the session evaluation ¨ Ken Sipe ken.sipe@gmail.com n kensipe.blogspot.com n twitter: @kensipe n Spock Testing