Smarter Testing With Spock

As was presented in Israeli Groovy and Grails User Group (ISRGUG)

Transcript

1. SMARTER TESTING WITH SPOCK Baruch Sadogursky by Peter Niederwieser
2. Meta & Intro State Based Testing Data Driven Testing Interaction Based Testing Spock Extensions More Cool Stuff What we’ll talk about
3. Meta & Intro State Based Testing Data Driven Testing Interaction Based Testing Spock Extensions More Cool Stuff What we’ll talk about
4. The creator of Spock Groovy & Gradle committer Works for Gradleware @pniederw 4 Peter Niederwieser
5. Developer Advocate at JFrog Loves Gr… things @jbaruch 5 Baruch Sadogursky
6. WHAT IS SPOCK?
7. A developer testing framework... Spock is...
8. A developer testing framework... for Groovy and Java applications... Spock is...
9. A developer testing framework... for Groovy and Java applications... based on Groovy... Spock is...
10. A developer testing framework... for Groovy and Java applications... based on Groovy... fully compatible with JUnit... Spock is...
11. A developer testing framework... for Groovy and Java applications... based on Groovy... fully compatible with JUnit... but going beyond! Spock is...
12. Reduce the lines of test code Spock Can...
13. Reduce the lines of test code Make tests more readable Spock Can...
14. Reduce the lines of test code Make tests more readable Turn tests into specifications Spock Can...
15. Reduce the lines of test code Make tests more readable Turn tests into specifications Be extended in powerful ways Spock Can...
16. Reduce the lines of test code Make tests more readable Turn tests into specifications Be extended in powerful ways Bring back the fun to testing! Spock Can...
17. Homepage http://spockframework.org Source Code http://github.spockframework.org/spock Documentation http://docs.spockframework.org/en/latest Spock Web Console http://webconsole.spockframework.org Spock Example Project http://github.spockframework.org/spock-example Slides and Code for this Presentation http://github.spockframework.org/smarter-testing-with-spock Getting Started
18. Who’s Using Spock?
19. Who’s Using Spock? (2)
20. Meta & Intro State Based Testing Data Driven Testing Interaction Based Testing Spock Extensions More Cool Stuff What we’ll talk about
21. Unit State Testing Vocabulary 21 Given some state of some objects… We write We mean Setup Given
22. Unit State Testing Vocabulary 22 Given some state of some objects… When we change that state… We write We mean Setup Given Change state When
23. Unit State Testing Vocabulary 23 Given some state of some objects… When we change that state… Then the results should be… We write We mean Setup Given Change state When Assert Then
24. Unit State Testing Vocabulary 24 We write We mean Setup Given Change state When Assert Then
25.  Blocks setup: cleanup: expect: given: when: then: where: and:  Fixture Methods setup() cleanup() setupSpec() cleanupSpec()  Instance and @Shared fields  old() and thrown()  Forces developers to think like users  Nice looking reports (that no one reads) Recap: State Based Testing
26. Meta & Intro State Based Testing Data Driven Testing Interaction Based Testing Spock Extensions More Cool Stuff What we’ll talk about
27. Test the same behavior... ...with varying data! Data Driven Testing
28. Test the same behavior... ...with varying data! Data Driven Testing
29. where: block Data tables External data sources @Unroll Recap: Data Driven Testing
30. Meta & Intro State Based Testing Data Driven Testing Interaction Based Testing Spock Extensions More Cool Stuff What we’ll talk about
31. How objects communicate Interaction Based Testing
32. How objects communicate Mocking frameworks simplify the job Interaction Based Testing
33. How objects communicate Mocking frameworks simplify the job Spock has its own mocking framework Interaction Based Testing
34. How objects communicate Mocking frameworks simplify the job Spock has its own mocking framework Google it: “Mocks aren't Stubs” Interaction Based Testing
35. How objects communicate Mocking frameworks simplify the job Spock has its own mocking framework Interaction Based Testing
36. Creating Recap: Interaction Based Testing def sub = Mock(Subscriber) Subscriber sub = Mock()
37. Creating Mocking Recap: Interaction Based Testing def sub = Mock(Subscriber) Subscriber sub = Mock() 1 * sub.receive("msg") (1..3) * sub.receive(_) (1.._) * sub.receive(_ as String) 1 * sub.receive(!null) 1 * sub.receive({it.contains("m")}) 1 * _./rec.*/("msg")
38. Stubbing Recap: Interaction Based Testing (2) // now returns status code String receive(String msg) { ... } sub.receive(_) >> "ok" sub.receive(_) >>> ["ok", "ok", "fail"] sub.receive(_) >> { msg -> msg.size() > 3 ? "ok" : "fail" }
39. Stubbing Mocking and Stubbing Recap: Interaction Based Testing (2) // now returns status code String receive(String msg) { ... } sub.receive(_) >> "ok" sub.receive(_) >>> ["ok", "ok", "fail"] sub.receive(_) >> { msg -> msg.size() > 3 ? "ok" : "fail" } 3 * sub.receive(_) >>> ["ok", "ok", "fail"]
40. Stubbing Mocking and Stubbing Impressing your friends Recap: Interaction Based Testing (2) // now returns status code String receive(String msg) { ... } sub.receive(_) >> "ok" sub.receive(_) >>> ["ok", "ok", "fail"] sub.receive(_) >> { msg -> msg.size() > 3 ? "ok" : "fail" } 3 * sub.receive(_) >>> ["ok", "ok", "fail"] (_.._) * _._(*_) >> _
41. NEW IN 0.7 What’s new?
42. Group conditions/interactions w/ same target New in 0.7 (1)
43. Group conditions/interactions w/ same target Better mocking failure messages New in 0.7 (1)
44. Stubs More at: http://docs.spockframework.org/en/latest/new_and_noteworthy.html New in 0.7 (2)
45. Stubs Spies More at: http://docs.spockframework.org/en/latest/new_and_noteworthy.html New in 0.7 (2)
46. Stubs Spies Groovy mocks More at: http://docs.spockframework.org/en/latest/new_and_noteworthy.html New in 0.7 (2)
47. Stubs Spies Groovy mocks Declare interactions upfront More at: http://docs.spockframework.org/en/latest/new_and_noteworthy.html New in 0.7 (2)
48. Stubs Spies Groovy mocks Declare interactions upfront More at: http://docs.spockframework.org/en/latest/new_and_noteworthy.html New in 0.7 (2)
49. Meta & Intro State Based Testing Data Driven Testing Interaction Based Testing Spock Extensions More Cool Stuff What we’ll talk about
50. Listeners Spock Extensions
51. Listeners Interceptors Spock Extensions
52. Listeners Interceptors Annotation-driven extensions Spock Extensions
53. Listeners Interceptors Annotation-driven extensions Global extensions Spock Extensions
54. Built-in Extensions @Ignore @IgnoreRest @FailsWith @Timeout @AutoCleanup @Stepwise @RevertMetaClass @Rule
55. Built-in Extensions @Ignore @IgnoreRest @FailsWith @Timeout @AutoCleanup @Stepwise @RevertMetaClass @Rule
56. External Extensions  spock-grails  spock-spring  spock-guice  spock-tapestry  spock-unitils  spock-griffon  spock-arquillian  spock-extensions http://github.com/robfletcher/spock-extensions
57. http://grails.org/plugin/spock http://github.spockframework.org/spock- grails grails install plugin spock 0.6 grails test-app grails test-app integration:spock ‘C*’ Grails Extension
58. Grails Extension (2)
59. Spring Extension
60. Meta & Intro State Based Testing Data Driven Testing Interaction Based Testing Spock Extensions More Cool Stuff What we’ll talk about
61. ~/.spock/SpockConfig.groovy, or on class path, or with -Dspock.configuration Configuring Spock
62. ~/.spock/SpockConfig.groovy, or on class path, or with -Dspock.configuration Configuring Spock runner { filterStackTrace false include Fast exclude Slow optimizeRunOrder true } @Fast class MyFastSpec extends Specification { def "I’m fast as hell!"() { expect: true } @Slow def "sorry, can’t keep up..."() { expect: false } }
63. Eclipse, IDEA (specially IDEA) Ant, Maven, Gradle Jenkins, Bamboo, TeamCity Spock runs everywhere JUnit and Groovy run! Tooling
64. Eclipse, IDEA (specially IDEA) Tooling
65. Eclipse, IDEA (specially IDEA) Ant, Maven, Gradle Tooling
66. Eclipse, IDEA (specially IDEA) Ant, Maven, Gradle Jenkins, Bamboo, TeamCity Tooling
67. Eclipse, IDEA (specially IDEA) Ant, Maven, Gradle Jenkins, Bamboo, TeamCity Spock runs everywhere JUnit and Groovy run! Tooling
68. You write... Spock Under The Hood a = 1; b = 2; c = 4 expect: sum(a, b) == c
69. You write... Spock generates... Spock Under The Hood a = 1; b = 2; c = 4 expect: sum(a, b) == c def rec = new ValueRecorder() SpockRuntime.verifyCondition( rec.record(rec.record(sum(rec.record(a), rec.record(b)) == rec.record(c)))
70. You write... Spock generates... You see... Spock Under The Hood a = 1; b = 2; c = 4 expect: sum(a, b) == c def rec = new ValueRecorder() SpockRuntime.verifyCondition( rec.record(rec.record(sum(rec.record(a), rec.record(b)) == rec.record(c)))
71. Homepage http://spockframework.org Source Code http://github.spockframework.org/spock Documentation http://docs.spockframework.org/en/latest Spock Web Console http://webconsole.spockframework.org Spock Example Project http://github.spockframework.org/spock-example Slides and Code for this Presentation http://github.spockframework.org/smarter-testing-with-spock Mocks Aren’t Stubs http://martinfowler.com/articles/mocksArentStubs.html Q&A