Testes_-_A_que_será_que_se_destina__-_V2.pdf

Transcript

1. Testes: A que será que se destina? Breve história sobre testes, boas e más práticas no ecossistema Apple Ronan Rodrigo Nunes
2. Arqueologia
5. 2005 Xcode 2.1 OCUnit 2013 Xcode 5.0 XCTest 2015 Xcode 7.0 XCUITest
6. Cultura
8. Não vejo benefício “
9. Meu código funciona perfeitamente, por que eu testaria? “
10. Até APP com testes tem bugs “
11. Até APP com testes tem bugs “
12. Não sei como, nem o que testar “
13. Não sei como, nem o que testar “ classona classinha extrair injetar testar ✔
14. Não temos tempo “
15. É difícil e complicado “
16. Meu time não tem a cultura de testar “ mobster.cc
17. O que ganho com isso?
18. 👃 Cheiro de que?
19. 🏰 Arquitete-se
20. 🧘 Equilibrio
21. ⛹ Domínio
22. ✍ Documentação
23. Boas práticas & Smells & Armadilhas
24. func test_primaryButtonTapped_doesRouteToFullSheet() { // given XCTAssertTrue(router.routeToFullSheetCallCount == 0) // when interactor.primaryButtonTapped() // then XCTAssertTrue(router.routeToFullSheetCallCount == 1) } ✘
25. func test_primaryButtonTapped_doesRouteToFullSheet() { XCTAssertTrue(router.routeToFullSheetCallCount == 0) interactor.primaryButtonTapped() XCTAssertTrue(router.routeToFullSheetCallCount == 1) } ✘
26. func test_primaryButtonTapped_doesRouteToFullSheet() { interactor.primaryButtonTapped() XCTAssertTrue(router.routeToFullSheetCallCount == 1) } ✘
27. func test_primaryButtonTapped_doesRouteToFullSheet() { interactor.primaryButtonTapped() XCTAssertEqual(router.routeToFullSheetCallCount, 1) } ✔︎
28. func test_startReport_doesRouteToReportFlow() { interactor.startReport() XCTAssertEqual(router.routeToReportFlowCallCount, 1) } ✔︎
29. func test_allByMonth_existingMonth_callCompletionWithItems() { var expectedGroupedFoods: [GroupedFoods]? // ... guard let expectedGroupedFoods = expectedGroupedFoods, firstGroup = expectedGroupedFoods.first else { XCTFail("empty expectedGroupedFoods") } XCTAssertFalse(firstGroup.foods.isEmpty) } ✘
30. func test_allByMonth_existingMonth_callCompletionWithItems() { var expectedGroupedFoods: [GroupedFoods]? // ... XCTAssertFalse(expectedGroupedFoods!.first!.foods.isEmpty) } ✘
31. func test_allByMonth_existingMonth_callCompletionWithItems() { var expectedGroupedFoods: [GroupedFoods]? // ... if let expectedGroupedFoods = expectedGroupedFoods { if let firstGroup = expectedGroupedFoods.first { XCTAssertFalse(firstGroup.foods.isEmpty) } } } ✘
32. func test_allByMonth_existingMonth_callCompletionWithItems() { var expectedGroupedFoods: [GroupedFoods]? // ... XCTAssertEqual(expectedGroupedFoods?.first?.foods.isEmpty, false) XCTAssertEqual(expectedGroupedFoods?.first?.foods.count, 4) } ✔︎
33. func test_allByMonth_existingMonth_callCompletionWithItems() { var expectedGroupedFoods: [GroupedFoods]? let month = MonthGatewayFactory.make().month(number: 1) gateway.all(byMonth: month) { expectedGroupedFoods = $0.data } XCTAssertEqual(expectedGroupedFoods?.isEmpty, false) } ✘
34. func test_allByMonth_existingMonth_callCompletionWithItems() { var expectedGroupedFoods: [GroupedFoods]? let month = MonthGatewayFactory.make().month(number: 1) gateway.all(byMonth: month) { expectedGroupedFoods = $0.data } XCTAssertEqual(expectedGroupedFoods?.isEmpty, false) } ✔︎
35. func test_finishReport_completeFlow() { var completed = false interactor.myEventStream().subscribe { _ in completed = true } .disposed(by: disposeBag) interactor.finish() XCTAssertTrue(completed) } ✘
36. func test_finishReport_completeFlow() { var completed = false onCompleteFlow(completed = true) interactor.finish() XCTAssertTrue(completed) } func onCompleteFlow(_ fn: @escaping @autoclosure () -> ()) { interactor.myEventStream() .subscribe { _ in fn() } .disposeOnTearDown(testCase: self) } ✔︎
37. class ReportTripInteractorTests: XCTestCase class ReportTripInteractor_StartTripTests: ReportTripInteractorTests class ReportTripInteractor_FinishingTripTests: ReportTripInteractorTests class ReportTripInteractor_SearchingTripTests: ReportTripInteractorTests class ReportTripInteractor_WaintingTripTests: ReportTripInteractorTests ✔︎
38. func test_start_validInteractor_createEventAtStream() { let expectedResponse = Response(uuid: "id") shareService.fetchHandler = { _ in .just(expectedResponse) } worker.start(interactor) someStream.dataSubject .subscribe(onNext: { eventResponse in XCTAssertEqual(expectedResponse, eventResponse) }) .disposed(by: disposeBag) } ✘
39. class Worker { func start(_ interactor: AnyInteractor) { someObservable .subscribe(someStream.dataSubject) .disposeOnStop(self) } } .subscribe(someStream.dataSubject)
40. class Worker { func start(_ interactor: AnyInteractor) { someObservable .disposeOnStop(self) } }
41. func test_start_validInteractor_createEventAtStream() { let expectedResponse = Response(uuid: "id") shareService.fetchHandler = { _ in .just(expectedResponse) } var eventResponse: Response? someStream.dataSubject .subscribe(onNext: { eventResponse = $0 }) .disposed(by: disposeBag) worker.start(interactor) XCTAssertEqual(expectedResponse, eventResponse) } ✔︎
42. func test_schedule_createEvent() { // ... } ✘
43. func test_givenMonthExist_whenContainsMeeting_thenCreateEvent() { // ... } func test_monthExist_containsMeeting_createEvent() { // ... } func testScheduleEvent_monthExist_containsMeeting_createEvent() { // ... } func test_itMonthExist_andContainsMeeting_shouldCreateEvent() { // ... } ✔︎
44. Obrigado
45. Obrigado ronanrodrigo.dev
46. Obrigado ronanrodrigo.dev ronanrodrigo.dev/slides