RxSwiftのテスト入門

RxSwiftのコードへのテストの書き方の流れ

Transcript

1. RxSwiftͷςετೖ໳ iOS Test Night #10 2019/04/16
2. Akihisa Sengoku גࣜձࣾαΠόʔΤʔδΣϯτ AmebaʢΞϝʔόʣ iOSΤϯδχΞ
3. Amebaͷ࠷ۙͷ։ൃ ʢiOS Teamʣ
4. 2018 + MVVM 2019 RxͷςετΛ ॻ͖࢝ΊΔ MVC MVVM etc…
5. RxSwiftͰͷςετ͸ͳ͔ͳ͔ ೉͍͠ɻɻɻ
6. ຊ೔ͷ಺༰ 3Y4XJGUͷίʔυ΁ͷ
   ςετͷॻ͖ํͷྲྀΕ
   ʢͬ͘͟Γͱʣ
   3Y4XJGUͰͷςετͷཧղ͕͕͋Ε͹ʜ
7. ςετΛॻ͘ର৅ จࣈҎ্Ͱొ࿥͢Δ͜ͱ͕Մೳͳ
   ؆୯ͳϑΥʔϜ
8. 7JFX
   ඳը 7JFX.PEFM
   ϩδοΫ ςΩετೖྗ Ϙλϯͷ
   &OBCMF ߦະຬ
   ˠ
   'BMTF
   ̏ߦҎ্
   ˠ
   5SVF RxSwiftΛ࢖ͬͨMVVMͰͷVM૚ʹςετΛॻ͘͜ͱΛ૝ఆ
9. 7JFX
   ඳը 7JFX.PEFM
   ϩδοΫ ςΩετೖྗ Ϙλϯͷ
   &OBCMF ߦະຬ
   ˠ
   'BMTF
   ̏ߦҎ্
   ˠ
   5SVF ୯ମςετͰ͖ͦ͏ʁʁ RxSwiftΛ࢖ͬͨMVVMͰͷVM૚ʹςετΛॻ͘͜ͱΛ૝ఆ
10. 7JFX
    ඳը 7JFX.PEFM
    ϩδοΫ ςΩετೖྗ Ϙλϯͷ
    &OBCMF ߦະຬ
    ˠ
    'BMTF
    ̏ߦҎ্
    ˠ
    5SVF ୯ମςετͰ͖ͦ͏ʁʁ RxSwiftΛ࢖ͬͨMVVMͰͷVM૚ʹςετΛॻ͘͜ͱΛ૝ఆ
11. 7JFX
    ඳը 7JFX.PEFM
    ϩδοΫ 0CTFSWBCMF4USJOH 0CTFSWBCMF#PPM ςΩετೖྗ Ϙλϯͷ
    &OBCMF     ' ' 5 5
12. 7JFX
    ඳը 7JFX.PEFM
    ϩδοΫ 0CTFSWBCMF4USJOH 0CTFSWBCMF#PPM ςΩετೖྗ Ϙλϯͷ
    &OBCMF     ' ' 5 5 0CTFSWBCMF͸Ұ࿈ͷ஋ͷྲྀΕ ετϦʔϜ Ͱ͋Γɺ
    ୯Ұͷ஋ͱͯ͠ςετ͢Δ͜ͱ͕ࠔ೉
13. 7JFX
    ඳը 7JFX.PEFM
    ϩδοΫ 0CTFSWBCMF4USJOH 0CTFSWBCMF#PPM ςΩετೖྗ Ϙλϯͷ
    &OBCMF     ' ' 5 5 ʲ*OQVUʳΠϕϯτͷ࣌ؒͱ஋Λࢦఆͯ͠ɺ
    0CTFSWBCMFʹ஋Λྲྀ͢͜ͱ͕ࠔ೉
14. 7JFX
    ඳը 7JFX.PEFM
    ϩδοΫ 0CTFSWBCMF4USJOH 0CTFSWBCMF#PPM ςΩετೖྗ Ϙλϯͷ
    &OBCMF     ' ' 5 5 ʲ0VUQVUʳྲྀΕͨΠϕϯτͷ࣌ؒͱ஋Λ
    ·ͱΊͯऔಘ͢Δ͜ͱ͕ࠔ೉
15. 7JFX
    ඳը 7JFX.PEFM
    ϩδοΫ 0CTFSWBCMF4USJOH 0CTFSWBCMF#PPM ςΩετೖྗ Ϙλϯͷ
    &OBCMF     ' ' 5 5 ࣮࣌ؒͰಈ͍͍ͯΔͨΊɺ
    ςετʹ͕͔͔࣌ؒͬͯ͠·͏ɻ
16. RxSwiftͷObservableΛ ͲͷΑ͏ʹ ςετ͢Δͷ͔ʁʁ
17. RxTest RxSwiftͷϨϙδτϦʔ಺ʹ͋ΔRxSwiftͷͨ ΊͷςετϑϨʔϜϫʔΫ ઌ΄Ͳͷ໰୊Λղܾ͢ΔͨΊʹ TestSchedulerͱ͍͏ಛผͳScheduler͕͋Δ
18. TestScheduler • Ծ૝࣌ؒΛج४ͱͨ͠ObservableͱObserverͷϞοΫͰ͋Δ TestableObservableͱTestableObserverΛੜ੒͢Δɻ ← ࣮࣌ؒͰͷςετ໰୊Λղܾ • TestableObservable͸ɺ࡞੒࣌ʹྲྀ͢Πϕϯτͷ஋ͱ࣌ؒΛࢦ ఆͯ͠ɺྲྀ͢͜ͱ͕Ͱ͖Δɻ ← InputΛղܾ • TestableObserver͸ɺΠϕϯτͷ࣌ؒͱ஋Λه࿥͢Δ͜ͱ͕Ͱ ͖Δ ← OutputΛղܾ
19. 5FTU4DIFEVMFS 5FTUBCMF0CTFSWBCMF 5FTUBCMF0CTFSWFS ࡞੒
20. 5FTU4DIFEVMFS 5FTUBCMF0CTFSWBCMF 5FTUBCMF0CTFSWFS ࡞੒ ࡞੒࣌ʹΠϕϯτΛ
    ొ࿥Մೳ Πϕϯτͷऔಘ     ' ' 5 5
21. 5FTU4DIFEVMFS 5FTUBCMF0CTFSWBCMF 5FTUBCMF0CTFSWFS ࡞੒ ࡞੒࣌ʹΠϕϯτΛ
    ొ࿥Մೳ Πϕϯτͷऔಘ     ' ' 5 5 ࣌ؒͱ*OQVUͱ0VUQVUͷ໰୊Λղܾʂ
22. 5FTU4DIFEVMFS 5FTUBCMF0CTFSWBCMF 5FTUBCMF0CTFSWFS ࡞੒ ࡞੒࣌ʹΠϕϯτΛ
    ొ࿥Մೳ Πϕϯτͷऔಘ     ' ' 5 5 ΠϕϯτΛͲͷΑ͏ʹѻ͏ͷ͔ʁʁ
23. Recorded /// Record of a value including the virtual time it was produced on. public struct Recorded<Value>: CustomDebugStringConvertible { /// Gets the virtual time the value was produced on. public let time: TestTime /// Gets the recorded value. public let value: Value public init(time: TestTime, value: Value) { self.time = time self.value = value } } ΠϕϯτͰੜ੒͞Εͨ஋ͱ ஋͕ੜ੒͞ΕͨԾ૝࣌ؒΛอ࣋ɻ
24. Recorded ΠϕϯτͰੜ੒͞Εͨ஋ͱ ஋͕ੜ੒͞ΕͨԾ૝࣌ؒΛอ࣋ɻ 3FDPSEFE <3FDPSEFE>    
25. 5FTU4DIFEVMFS 5FTUBCMF0CTFSWBCMF 5FTUBCMF0CTFSWFS ࡞੒ ࡞੒࣌ʹ<3FDPSEFE>Ͱ
    ΠϕϯτΛొ࿥ ΠϕϯτΛ
    <3FDPSEFE>Ͱऔಘ     ' ' 5 5
26. 7JFX
    ඳը 7JFX.PEFM
    ϩδοΫ 0CTFSWBCMF4USJOH 0CTFSWBCMF#PPM ςΩετೖྗ Ϙλϯͷ
    &OBCMF
27. 7JFX
    ඳը 7JFX.PEFM
    ϩδοΫ ςΩετೖྗ Ϙλϯͷ
    &OBCMF ᶃ5FTU4DIFEVMFSͰ<3FDPSEFE>Λ
    Λ΋ͱʹ5FTUBCMF0CTFSWBCMFΛ࡞੒     0CTFSWBCMF#PPM <3FDPSEFE> 5FTUBCMF0CTFSWBCMF4USJOH
28. 7JFX
    ඳը 7JFX.PEFM
    ϩδοΫ 5FTUBCMF0CTFSWBCMF4USJOH ςΩετೖྗ Ϙλϯͷ
    &OBCMF
    
    ᶄ5FTU4DIFEVMFSͰΠϕϯτΛड͚औΔ
    5FTUBCMF0CTFSWFSΛ࡞੒     5FTUBCMF0CTFSWFS#PPM <3FDPSEFE>
29. 7JFX
    ඳը 7JFX.PEFM
    ϩδοΫ 5FTUBCMF0CTFSWBCMF4USJOH ςΩετೖྗ Ϙλϯͷ
    &OBCMF
    
    ᶅ5FTU4DIFEVMFSΛ։࢝ͯ͠ɺ
    5FTUBCMF0CTFSWFS͔Β<3FDPSEFE>ͷ஋Λऔಘ     5FTUBCMF0CTFSWFS#PPM <3FDPSEFE> ' ' 5 5 <3FDPSEFE>
30. 7JFX
    ඳը 7JFX.PEFM
    ϩδοΫ 5FTUBCMF0CTFSWBCMF4USJOH ςΩετೖྗ Ϙλϯͷ
    &OBCMF
    
    ᶆ<3FDPSEFE>ͷ஋Λςετ
    ˠ
    ςετ׬ྃ     5FTUBCMF0CTFSWFS#PPM <3FDPSEFE> ' ' 5 5 <3FDPSEFE>
    
31. RxTestͷTestSchedulerʹΑͬͯ RxSwiftͷObservableͷςετ͕ Մೳʹʂʂ
32. ·ͱΊ • RxSwiftͷObservableΛςετ͢Δͷ͸ࠔ೉ • ObservableΛςετ͢ΔͨΊʹRxSwiftͷ TestSchedulerΛ࢖༻ • TestSchedulerʹΑͬͯTestableObservableͱ TestableObserverΛ࡞੒ͯ͠ςετ͢Δ