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
   

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2. Akihisa Sengoku
   גࣜձࣾαΠόʔΤʔδΣϯτ
   AmebaʢΞϝʔόʣ
   iOSΤϯδχΞ
   

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3. Amebaͷ࠷ۙͷ։ൃ
   ʢiOS Teamʣ
   

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4. 2018
   +
   MVVM
   2019
   RxͷςετΛ
   ॻ͖࢝ΊΔ
   MVC
   MVVM
   etc…
   

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5. RxSwiftͰͷςετ͸ͳ͔ͳ͔
   ೉͍͠ɻɻɻ
   

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6. ຊ೔ͷ಺༰
   3Y4XJGUͷίʔυ΁ͷ
   ςετͷॻ͖ํͷྲྀΕ
   ʢͬ͘͟Γͱʣ
   3Y4XJGUͰͷςετͷཧղ͕͕͋Ε͹ʜ
   

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7. ςετΛॻ͘ର৅
   จࣈҎ্Ͱొ࿥͢Δ͜ͱ͕Մೳͳ
   ؆୯ͳϑΥʔϜ
   

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8. 7JFX
   ඳը
   
   7JFX.PEFM
   ϩδοΫ
   
   ςΩετೖྗ
   Ϙλϯͷ
   &OBCMF
   ߦະຬ
   ˠ'BMTF
   ̏ߦҎ্
   ˠ5SVF
   RxSwiftΛ࢖ͬͨMVVMͰͷVM૚ʹςετΛॻ͘͜ͱΛ૝ఆ
   

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9. 7JFX
   ඳը
   
   7JFX.PEFM
   ϩδοΫ
   
   ςΩετೖྗ
   Ϙλϯͷ
   &OBCMF
   ߦະຬ
   ˠ'BMTF
   ̏ߦҎ্
   ˠ5SVF
   ୯ମςετͰ͖ͦ͏ʁʁ
   RxSwiftΛ࢖ͬͨMVVMͰͷVM૚ʹςετΛॻ͘͜ͱΛ૝ఆ
   

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10. 7JFX
    ඳը
    
    7JFX.PEFM
    ϩδοΫ
    
    ςΩετೖྗ
    Ϙλϯͷ
    &OBCMF
    ߦະຬ
    ˠ'BMTF
    ̏ߦҎ্
    ˠ5SVF
    ୯ମςετͰ͖ͦ͏ʁʁ
    RxSwiftΛ࢖ͬͨMVVMͰͷVM૚ʹςετΛॻ͘͜ͱΛ૝ఆ
    

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11. 7JFX
    ඳը
    
    7JFX.PEFM
    ϩδοΫ
    
    0CTFSWBCMF4USJOH
    0CTFSWBCMF#PPM
    ςΩετೖྗ
    Ϙλϯͷ
    &OBCMF
    
    ' ' 5 5
    

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12. 7JFX
    ඳը
    
    7JFX.PEFM
    ϩδοΫ
    
    0CTFSWBCMF4USJOH
    0CTFSWBCMF#PPM
    ςΩετೖྗ
    Ϙλϯͷ
    &OBCMF
    
    ' ' 5 5
    0CTFSWBCMF͸Ұ࿈ͷ஋ͷྲྀΕ ετϦʔϜ
    Ͱ͋Γɺ
    ୯Ұͷ஋ͱͯ͠ςετ͢Δ͜ͱ͕ࠔ೉
    

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13. 7JFX
    ඳը
    
    7JFX.PEFM
    ϩδοΫ
    
    0CTFSWBCMF4USJOH
    0CTFSWBCMF#PPM
    ςΩετೖྗ
    Ϙλϯͷ
    &OBCMF
    
    ' ' 5 5
    ʲ*OQVUʳΠϕϯτͷ࣌ؒͱ஋Λࢦఆͯ͠ɺ
    0CTFSWBCMFʹ஋Λྲྀ͢͜ͱ͕ࠔ೉
    

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14. 7JFX
    ඳը
    
    7JFX.PEFM
    ϩδοΫ
    
    0CTFSWBCMF4USJOH
    0CTFSWBCMF#PPM
    ςΩετೖྗ
    Ϙλϯͷ
    &OBCMF
    
    ' ' 5 5
    ʲ0VUQVUʳྲྀΕͨΠϕϯτͷ࣌ؒͱ஋Λ
    ·ͱΊͯऔಘ͢Δ͜ͱ͕ࠔ೉
    

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15. 7JFX
    ඳը
    
    7JFX.PEFM
    ϩδοΫ
    
    0CTFSWBCMF4USJOH
    0CTFSWBCMF#PPM
    ςΩετೖྗ
    Ϙλϯͷ
    &OBCMF
    
    ' ' 5 5
    ࣮࣌ؒͰಈ͍͍ͯΔͨΊɺ
    ςετʹ͕͔͔࣌ؒͬͯ͠·͏ɻ
    

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16. RxSwiftͷObservableΛ
    ͲͷΑ͏ʹ
    ςετ͢Δͷ͔ʁʁ
    

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17. RxTest
    RxSwiftͷϨϙδτϦʔ಺ʹ͋ΔRxSwiftͷͨ
    ΊͷςετϑϨʔϜϫʔΫ
    ઌ΄Ͳͷ໰୊Λղܾ͢ΔͨΊʹ
    TestSchedulerͱ͍͏ಛผͳScheduler͕͋Δ
    

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18. TestScheduler
    • Ծ૝࣌ؒΛج४ͱͨ͠ObservableͱObserverͷϞοΫͰ͋Δ
    TestableObservableͱTestableObserverΛੜ੒͢Δɻ
    ← ࣮࣌ؒͰͷςετ໰୊Λղܾ
    • TestableObservable͸ɺ࡞੒࣌ʹྲྀ͢Πϕϯτͷ஋ͱ࣌ؒΛࢦ
    ఆͯ͠ɺྲྀ͢͜ͱ͕Ͱ͖Δɻ ← InputΛղܾ
    • TestableObserver͸ɺΠϕϯτͷ࣌ؒͱ஋Λه࿥͢Δ͜ͱ͕Ͱ
    ͖Δ ← OutputΛղܾ
    

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19. 5FTU4DIFEVMFS
    5FTUBCMF0CTFSWBCMF 5FTUBCMF0CTFSWFS
    ࡞੒
    

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20. 5FTU4DIFEVMFS
    5FTUBCMF0CTFSWBCMF 5FTUBCMF0CTFSWFS
    ࡞੒
    ࡞੒࣌ʹΠϕϯτΛ
    ొ࿥Մೳ
    Πϕϯτͷऔಘ
    
    ' ' 5 5
    

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21. 5FTU4DIFEVMFS
    5FTUBCMF0CTFSWBCMF 5FTUBCMF0CTFSWFS
    ࡞੒
    ࡞੒࣌ʹΠϕϯτΛ
    ొ࿥Մೳ
    Πϕϯτͷऔಘ
    
    ' ' 5 5
    ࣌ؒͱ*OQVUͱ0VUQVUͷ໰୊Λղܾʂ
    

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22. 5FTU4DIFEVMFS
    5FTUBCMF0CTFSWBCMF 5FTUBCMF0CTFSWFS
    ࡞੒
    ࡞੒࣌ʹΠϕϯτΛ
    ొ࿥Մೳ
    Πϕϯτͷऔಘ
    
    ' ' 5 5
    ΠϕϯτΛͲͷΑ͏ʹѻ͏ͷ͔ʁʁ
    

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23. Recorded
    /// Record of a value including the virtual time it was produced on.
    public struct Recorded: 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
    

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24. Recorded
    ΠϕϯτͰੜ੒͞Εͨ஋ͱ
    ஋͕ੜ੒͞ΕͨԾ૝࣌ؒΛอ࣋ɻ
    3FDPSEFE
    <3FDPSEFE>
    
    

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25. 5FTU4DIFEVMFS
    5FTUBCMF0CTFSWBCMF 5FTUBCMF0CTFSWFS
    ࡞੒
    ࡞੒࣌ʹ<3FDPSEFE>Ͱ
    ΠϕϯτΛొ࿥
    ΠϕϯτΛ
    <3FDPSEFE>Ͱऔಘ
    
    ' ' 5 5
    

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26. 7JFX
    ඳը
    
    7JFX.PEFM
    ϩδοΫ
    
    0CTFSWBCMF4USJOH
    0CTFSWBCMF#PPM
    ςΩετೖྗ
    Ϙλϯͷ
    &OBCMF
    

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27. 7JFX
    ඳը
    
    7JFX.PEFM
    ϩδοΫ
    
    ςΩετೖྗ
    Ϙλϯͷ
    &OBCMF
    ᶃ5FTU4DIFEVMFSͰ<3FDPSEFE>Λ
    Λ΋ͱʹ5FTUBCMF0CTFSWBCMFΛ࡞੒
    
    0CTFSWBCMF#PPM
    <3FDPSEFE>
    5FTUBCMF0CTFSWBCMF4USJOH
    

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28. 7JFX
    ඳը
    
    7JFX.PEFM
    ϩδοΫ
    
    5FTUBCMF0CTFSWBCMF4USJOH
    ςΩετೖྗ
    Ϙλϯͷ
    &OBCMF
    ᶄ5FTU4DIFEVMFSͰΠϕϯτΛड͚औΔ
    5FTUBCMF0CTFSWFSΛ࡞੒
    
    5FTUBCMF0CTFSWFS#PPM
    <3FDPSEFE>
    

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29. 7JFX
    ඳը
    
    7JFX.PEFM
    ϩδοΫ
    
    5FTUBCMF0CTFSWBCMF4USJOH
    ςΩετೖྗ
    Ϙλϯͷ
    &OBCMF
    ᶅ5FTU4DIFEVMFSΛ։࢝ͯ͠ɺ
    5FTUBCMF0CTFSWFS͔Β<3FDPSEFE>ͷ஋Λऔಘ
    
    5FTUBCMF0CTFSWFS#PPM
    <3FDPSEFE>
    ' ' 5 5
    <3FDPSEFE>
    

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30. 7JFX
    ඳը
    
    7JFX.PEFM
    ϩδοΫ
    
    5FTUBCMF0CTFSWBCMF4USJOH
    ςΩετೖྗ
    Ϙλϯͷ
    &OBCMF
    ᶆ<3FDPSEFE>ͷ஋Λςετ
    ˠςετ׬ྃ
    
    5FTUBCMF0CTFSWFS#PPM
    <3FDPSEFE>
    ' ' 5 5 <3FDPSEFE>
    

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31. RxTestͷTestSchedulerʹΑͬͯ
    RxSwiftͷObservableͷςετ͕
    Մೳʹʂʂ
    

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32. ·ͱΊ
    • RxSwiftͷObservableΛςετ͢Δͷ͸ࠔ೉
    • ObservableΛςετ͢ΔͨΊʹRxSwiftͷ
    TestSchedulerΛ࢖༻
    • TestSchedulerʹΑͬͯTestableObservableͱ
    TestableObserverΛ࡞੒ͯ͠ςετ͢Δ
    

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