Start Speking It

Transcript

1. Start Speking it. Rui Gonçalo @rmgoncalo Fábio Carballo @fabiocarballo

2. None

3. JUnit

4. None
5. None

6. Test Actions Groups

7. Test • it

8. Test it(“should be true”) { assertTrue(true) }

9. Groups • group

10. Groups group(“a testing group”) { group(“a nested group”) { }

    }

11. Groups group(“a testing group”) { group(“a nested group”) { }

    }

12. Groups describe(“a testing group”) { group(“a nested group”) { }

    }

13. Groups context(“a testing group”) { group(“a nested group”) { }

    }

14. Groups given(“a testing group”) { group(“a nested group”) { }

    }

15. Groups fun SpecBody.context(description: String, body: SpecBody.() -> Unit) { group("context

    $description", body = body) } fun SpecBody.given(description: String, body: SpecBody.() -> Unit) { group(“given $description", body = body) } fun SpecBody.describe(description: String, body: SpecBody.() -> Unit) { group(“describe $description", body = body) }

16. Actions • on

17. Actions on(“action that triggers the test”) { tested.actionThatTriggersIt() it(“should do

    X by Y”) { … } }

18. object SimpleSpec: Spek({ describe("a bakery") { val calculator = SampleCalculator()

    on(“bake bread") { val breads = bakery.mix(“salt”, “margarine” , “flour”) it(“should return some bread") { assertTrue(breads.isNotEmpty() } }

19. object SimpleSpec: Spek({ describe("a bakery") { val bakery = Bakery()

    on(“mixing bread ingredients”) { val breads = bakery.mix(“salt”, “margarine”, “flour”) it(“should return some bread") { assertTrue(breads.isNotEmpty() } } }
20. None

21. checkPermission GRANT DENY requestPermission onPermissionGranted onPermissionDenied getDistances getDistances showError

22. class Presenter( permissionsManager: PermissionsManager, distancesProvider: DistancesProvider, view: View) { }

23. interface PermissionsManager { fun checkPermission(): Observable<Boolean> fun requestPermissions(): Observable<Boolean> }

    class Presenter( permissionsManager: PermissionsManager, distancesProvider: DistancesProvider, view: View) { }

24. interface DistancesProvider { fun getDistances() : Observable<Int> } class Presenter(

    permissionsManager: PermissionsManager, distancesProvider: DistancesProvider, view: View) { } interface PermissionsManager { fun checkPermission(): Observable<Boolean> fun requestPermissions(): Observable<Boolean> }

25. interface View { fun showDistance(distance: Int) fun showError() } interface

    PermissionsManager { fun checkPermission(): Observable<Boolean> fun requestPermissions(): Observable<Boolean> } class Presenter( permissionsManager: PermissionsManager, distancesProvider: DistancesProvider, view: View) { } interface DistancesProvider { fun getDistances() : Observable<Int> }

26. permissionsManager.checkPermission() GRANT DENY permissionsManager.requestPermission() GRANT DENY distancesProvider.getDistances() view.showError() distancesProvider.getDistances()

27. permissionsManager.checkPermission() GRANT DENY permissionsManager.requestPermission() GRANT DENY distancesProvider.getDistances() view.showError() distancesProvider.getDistances()

28. checkPermission GRANT getDistances

29. checkPermission GRANT getDistances @Test fun when_check_permission_and_permission_is_granted_should_get_distance() { … }

30. @Test fun when_check_permission_and_permission_is_granted_should_get_distance() { whenever(permissionsManager.checkPermission()).thenReturn(Observable.just(true)) } checkPermission GRANT getDistances

31. @Test fun when_check_permission_and_permission_is_granted_should_get_distance() { whenever(permissionsManager.checkPermission()).thenReturn(Observable.just(true)) presenter.start() verify(distancesProvider).getDistance() } checkPermission GRANT

    getDistances

32. checkPermission DENY requestPermission onPermissionGranted getDistances

33. whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) checkPermission DENY requestPermission onPermissionGranted getDistances

34. whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) whenever(permissionsManager.requestPermission()) .thenReturn(Observable.just(true)) checkPermission DENY requestPermission onPermissionGranted getDistances

35. whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) whenever(permissionsManager.requestPermission()) .thenReturn(Observable.just(true)) presenter.start() verify(permissionsManager).requestPermission() verify(view).getDistances() checkPermission DENY requestPermission

    onPermissionGranted getDistances

36. checkPermission DENY requestPermission onPermissionDenied showError

37. whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) whenever(permissionsManager.requestPermission()) .thenReturn(Observable.just(false)) checkPermission DENY requestPermission onPermissionDenied showError

38. whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) whenever(permissionsManager.requestPermission()) .thenReturn(Observable.just(false)) checkPermission DENY requestPermission onPermissionDenied showError

39. whenever(permissionsManager.checkPermission()) .thenReturn(Single.just(false)) whenever(permissionsManager.requestPermission()) .thenReturn(Single.just(false)) presenter.start() verify(permissionsManager).requestPermission() verify(view).showError() checkPermission DENY requestPermission

    onPermissionDenied showError

40. checkPermission GRANT getDistances checkPermission DENY requestPermission onPermissionGranted getDistances checkPermission DENY

    requestPermission onPermissionDenied showError

41. checkPermission GRANT getDistances checkPermission DENY requestPermission onPermissionGranted getDistances checkPermission DENY

    requestPermission onPermissionDenied showError

42. checkPermission GRANT getDistances checkPermission DENY requestPermission onPermissionGranted getDistances checkPermission DENY

    requestPermission onPermissionDenied showError

43. Spek

44. checkPermission GRANT getDistances checkPermission DENY requestPermission onPermissionGranted getDistances checkPermission DENY

    requestPermission onPermissionDenied showError

45. checkPermission GRANT getDistances

46. describe(“check permission”) { context("permission is granted”) { it("should get distance”)

    { }
 }
 } checkPermission GRANT getDistances

47. describe(“check permission”) { context("permission is granted”) { it("should get distance”)

    { }
 }
 } checkPermission GRANT getDistances

48. describe(“check permission”) { context("permission is granted”) { it("should get distances”)

    { }
 }
 } checkPermission GRANT getDistances

49. describe(“check permission”) { context("permission is granted”) { it("should get distances”)

    { verify(distancesProvider).getDistances() }
 }
 } checkPermission GRANT getDistances

50. describe(“check permission”) { context("permission is granted”) { it("should get distances”)

    { verify(distancesProvider).getDistances() }
 } context("permission is denied”) { it(“should request permissions”) { verify(permissionsManager).requestPermissions() }
 }
 } checkPermission GRANT getDistances DENY requestPermission

51. describe(“check permission”) { … context("permission is denied”) { it(“should request

    permissions”) { … } given(“a permission request”) { on(“permission granted”) { it(“should get distance”) { … } } } } } checkPermission GRANT getDistances DENY requestPermission onPermissionGranted

52. describe(“check permission”) { … context("permission is denied”) { it(“should request

    permissions”) { … } given(“a permission request”) { on(“permission granted”) { it(“should get distances”) { } } } } } checkPermission GRANT getDistances DENY requestPermission onPermissionGranted getDistances

53. describe(“check permission”) { … context("permission is denied”) { it(“should request

    permissions”) { … } given(“a permission request”) { on(“permission granted”) { it(“should get distances”) { verify(distancesProvider).getDistances() } } } } } checkPermission GRANT getDistances DENY requestPermission onPermissionGranted getDistances

54. checkPermission GRANT getDistances DENY requestPermission onPermissionGranted getDistances onPermissionDenied showError describe(“check

    permission”) { context("permission is denied”) { given(“a permission request”) { on(“permission granted”) { it(“should get distances”) { … } } on(“permission denied”) { it(“should show error”) { verify(view).showError() } } } } }

55. describe(“check permission”) { context("permission is granted”) it(“should get distances”) {

    … } context(“permission is denied”) { it(“should request permission”) { … } given(“a permission request”) { on(“permission granted”) it(“should get distances”) { … } on(“permission denied”) it(“should show error”) { … } } } checkPermission GRANT getDistances DENY requestPermission onPermissionGranted getDistances onPermissionDenied showError

56. How to setup/teardown ?

57. beforeEachTest { } afterEachTest { }

58. describe(“check permission”) { context("permission is granted”) { it(“should get distances”)

    { … } } context(“permission is denied”) { it(“should request permission”) { … } given(“a permission request”) { on(“permission granted”) it(“should get distances”) { … } on(“permission denied”) it(“should show error”) { … } } }

59. describe(“check permission”) { context("permission is granted”) { it(“should get distances”)

    { … } } context(“permission is denied”) { it(“should request permission”) { … } given(“a permission request”) { on(“permission granted”) it(“should get distances”) { … } on(“permission denied”) it(“should show error”) { … } } }

60. describe(“check permission”) { context("permission is granted”) { it(“should get distances”)

    { … } } context(“permission is denied”) { it(“should request permission”) { … } } }

61. describe(“check permission”) { context("permission is granted”) { beforeEachTest { whenever(permissionsManager.checkPermission())

    .thenReturn(Observable.just(true)) tested.start() } it(“should get distances”) { … } } context(“permission is denied”) { it(“should request permission”) { … } } }

62. describe(“check permission”) { context("permission is granted”) { it(“should get distances”)

    { … } } context(“permission is denied”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Single.just(false)) tested.start() } it(“should request permission”) { … } } }

63. describe(“check permission”) { context("permission is granted”) { it(“should get distances”)

    { … } } context(“permission is denied”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) tested.start() } it(“should request permission”) { … } } }

64. describe(“check permission”) { context("permission is granted”) { } context(“permission is

    denied”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) tested.start() } } }

65. describe(“check permission”) { context("permission is granted”) { beforeEachTest { whenever(permissionsManager.checkPermission())

    .thenReturn(Observable.just(true)) tested.start() } } context(“permission is denied”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) tested.start() } } }

66. describe(“check permission”) { context("permission is granted”) { beforeEachTest { whenever(permissionsManager.checkPermission())

    .thenReturn(Observable.just(true)) tested.start() } } context(“permission is denied”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) tested.start() } } }

67. describe(“start”) { context("permission is granted”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(true))

    tested.start() } } context(“permission is denied”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) tested.start() } } }

68. describe(“start”) { beforeEachTest { tested.start() } context("permission is granted”) {

    beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(true)) } } context(“permission is denied”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) } } }

69. describe(“start”) { beforeEachTest { tested.start() } it(“should check permission”) {

    verify(permissionsManager).checkPermission() } context("permission is granted”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(true)) } } context(“permission is denied”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) } } }

70. describe(“start”) { beforeEachTest { tested.start() } it(“should check permission”) {…}

    context("permission is granted”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(true)) } } context(“permission is denied”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) } } }

71. describe(“start”) { beforeEachTest { tested.start() } it(“should check permission”) {…}

    context("permission is granted”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(true)) } } context(“permission is denied”) { beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(false)) } } }

72. beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(true)) } describe(“start”) { beforeEachTest { tested.start()

    } it(“should check permission”) {…} context("permission is granted”) { } context(“permission is denied”) { } }

73. beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(true)) } describe(“start”) { beforeEachTest { tested.start()

    } it(“should check permission”) {…} context("permission is granted”) { } context(“permission is denied”) { } }

74. beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(Observable.just(true)) } describe(“start”) { beforeEachTest { tested.start()

    } it(“should check permission”) {…} context("permission is granted”) { } context(“permission is denied”) { it(“should request permission”) { … } } }

75. beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(____________) } describe(“start”) { beforeEachTest { tested.start()

    } it(“should check permission”) {…} context("permission is granted”) { } context(“permission is denied”) { it(“should request permission”) { … } } }

76. val permissionPubSub: PublishSubject<Boolean> = PublishSubject.create() beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(permissionPubSub) }

    describe(“start”) { beforeEachTest { tested.start() } it(“should check permission”) {…} context("permission is granted”) { } context(“permission is denied”) { it(“should request permission”) { … } } }

77. val permissionPubSub: PublishSubject<Boolean> = PublishSubject.create() beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(permissionPubSub) }

    describe(“start”) { beforeEachTest { tested.start() } it(“should check permission”) {…} context("permission is granted”) { } context(“permission is denied”) { it(“should request permission”) { … } } }

78. val permissionPubSub: PublishSubject<Boolean> = PublishSubject.create() beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(permissionPubSub) }

    describe(“start”) { beforeEachTest { tested.start() } it(“should check permission”) {…} context("permission is granted”) { } context(“permission is denied”) { beforeEachTest { permissionPubSub.onNext(false) } it(“should request permission”) { … } } }

79. val permissionPubSub: PublishSubject<Boolean> = PublishSubject.create() beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(permissionPubSub) }

    describe(“start”) { beforeEachTest { tested.start() } it(“should check permission”) {…} context("permission is granted”) { beforeEachTest { permissionPubSub.onNext(true) } it(“should get distances”) { … } } context(“permission is denied”) { beforeEachTest { permissionPubSub.onNext(false) } it(“should request permission”) { … } } }

80. beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(permissionPubSub) whenever(permissionsManager.requestPermission()) .thenReturn(requestPubSub) } describe(“start”) { beforeEachTest

    { tested.start() } it(“should check permission”) {…} context("permission is granted”) { beforeEachTest { permissionPubSub.onNext(true) } it(“should get distances”) { … } } context(“permission is denied”) { beforeEachTest { permissionPubSub.onNext(false) } it(“should request permission”) { … } } }

81. beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(permissionPubSub) whenever(permissionsManager.requestPermission()) .thenReturn(requestPubSub) } describe(“start”) { beforeEachTest

    { tested.start() } it(“should check permission”) {…} context("permission is granted”) { beforeEachTest { permissionPubSub.onNext(true) } it(“should get distances”) { … } } context(“permission is denied”) { beforeEachTest { permissionPubSub.onNext(false) } it(“should request permission”) { … } } }

82. beforeEachTest { whenever(permissionsManager.checkPermission()) .thenReturn(permissionPubSub) whenever(permissionsManager.requestPermission()) .thenReturn(requestPubSub) } describe(“start”) { context(“permission

    is denied”) { given(“a permission request”) { on(“permission granted”) { requestPubSub.onNext(true) it(“should get distances”) { … } } on(“permission denied”) { requestPubSub.onNext(false) it(“should show error”) { … } } } } }
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86. Cheat Sheet of Getting into Spek

87. org.mockito.exceptions.base.MockitoException: Cannot mock/spy class com.package.YourClass Mockito cannot mock/spy because :

    - final class

88. mock-maker-inline

89. Mockito.`when`(mapper.call(Mockito.any())).thenReturn(Entity()) fun call(a: A): B

90. Mockito.any() must not be null java.lang.IllegalStateException: Mockito.any() must not be

    null

91. Mockito.`when`(mapper.call(Mockito.any())).thenReturn(B()) fun call(a: A): B null

92. None

93. fun SpecBody.rxGiven(description: String, body: SpecBody.() -> Unit) { val immediate

    = object : Scheduler() { override fun scheduleDirect(run: Runnable, delay: Long, unit: TimeUnit): Disposable { return super.scheduleDirect(run, 0, unit) } override fun createWorker(): Scheduler.Worker { return ExecutorScheduler.ExecutorWorker(Runnable::run) } } beforeEachTest { RxJavaPlugins.setInitIoSchedulerHandler{ immediate } RxJavaPlugins.setInitComputationSchedulerHandler{ immediate } RxJavaPlugins.setInitNewThreadSchedulerHandler{ immediate } RxJavaPlugins.setInitSingleSchedulerHandler{ immediate } RxAndroidPlugins.setInitMainThreadSchedulerHandler { scheduler -> immediate } } given(description, body = body) afterEachTest { RxJavaPlugins.reset() RxAndroidPlugins.reset() } }

94. fun SpecBody.rxGiven(description: String, body: SpecBody.() -> Unit) { val immediate

    = object : Scheduler() { override fun scheduleDirect(run: Runnable, delay: Long, unit: TimeUnit): Disposable { return super.scheduleDirect(run, 0, unit) } override fun createWorker(): Scheduler.Worker { return ExecutorScheduler.ExecutorWorker(Runnable::run) } } beforeEachTest { RxJavaPlugins.setInitIoSchedulerHandler{ immediate } RxJavaPlugins.setInitComputationSchedulerHandler{ immediate } RxJavaPlugins.setInitNewThreadSchedulerHandler{ immediate } RxJavaPlugins.setInitSingleSchedulerHandler{ immediate } RxAndroidPlugins.setInitMainThreadSchedulerHandler { scheduler -> immediate } } given(description, body = body) afterEachTest { RxJavaPlugins.reset() RxAndroidPlugins.reset() } }

95. fun SpecBody.rxGiven(description: String, body: SpecBody.() -> Unit) { val immediate

    = object : Scheduler() { override fun scheduleDirect(run: Runnable, delay: Long, unit: TimeUnit): Disposable { return super.scheduleDirect(run, 0, unit) } override fun createWorker(): Scheduler.Worker { return ExecutorScheduler.ExecutorWorker(Runnable::run) } } beforeEachTest { RxJavaPlugins.setInitIoSchedulerHandler{ immediate } RxJavaPlugins.setInitComputationSchedulerHandler{ immediate } RxJavaPlugins.setInitNewThreadSchedulerHandler{ immediate } RxJavaPlugins.setInitSingleSchedulerHandler{ immediate } RxAndroidPlugins.setInitMainThreadSchedulerHandler { scheduler -> immediate } } given(description, body = body) afterEachTest { RxJavaPlugins.reset() RxAndroidPlugins.reset() } }

96. fun SpecBody.rxGiven(description: String, body: SpecBody.() -> Unit) { val immediate

    = object : Scheduler() { override fun scheduleDirect(run: Runnable, delay: Long, unit: TimeUnit): Disposable { return super.scheduleDirect(run, 0, unit) } override fun createWorker(): Scheduler.Worker { return ExecutorScheduler.ExecutorWorker(Runnable::run) } } beforeEachTest { RxJavaPlugins.setInitIoSchedulerHandler{ immediate } RxJavaPlugins.setInitComputationSchedulerHandler{ immediate } RxJavaPlugins.setInitNewThreadSchedulerHandler{ immediate } RxJavaPlugins.setInitSingleSchedulerHandler{ immediate } RxAndroidPlugins.setInitMainThreadSchedulerHandler { scheduler -> immediate } } given(description, body = body) afterEachTest { RxJavaPlugins.reset() RxAndroidPlugins.reset() } }

97. fun SpecBody.rxGiven(description: String, body: SpecBody.() -> Unit) { beforeEachTest {

    ArchTaskExecutor.getInstance().setDelegate(object : TaskExecutor() { override fun executeOnDiskIO(runnable: Runnable) { runnable.run() } override fun postToMainThread(runnable: Runnable) { runnable.run() } override fun isMainThread(): Boolean { return true } }) } given(description, body = body) afterEachTest { ArchTaskExecutor.getInstance().setDelegate(null) } }

98. fun SpecBody.rxGiven(description: String, body: SpecBody.() -> Unit) { beforeEachTest {

    ArchTaskExecutor.getInstance().setDelegate(object : TaskExecutor() { override fun executeOnDiskIO(runnable: Runnable) { runnable.run() } override fun postToMainThread(runnable: Runnable) { runnable.run() } override fun isMainThread(): Boolean { return true } }) } given(description, body = body) afterEachTest { ArchTaskExecutor.getInstance().setDelegate(null) } }
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101. Thank you Rui Gonçalo @rmgoncalo Fábio Carballo @fabiocarballo