mockito-kotlin

Android Test Night #2

Transcript

1. mockito-kotlin
   Keisuke Kobayashi
   Android Test Night #2
   

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2. About Me
   • Keisuke Kobayashi
   • GitHub, QIita: kobakei
   • Twitter: kobakei122
   • Kyash, Inc
   • ݸਓࣄۀओ
   

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3. mockito-kotlin͸͍͍ͧ
   

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4. mockito-kotlin
   • KotlinͰMockitoΛ࢖͏ͨΊͷϥΠϒϥϦ
   • https://github.com/nhaarman/mockito-kotlin
   • ˒800 over
   

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5. Ͳ͕͍͍͔͜
   • ϞοΫ͕ݟ΍͘͢ͳΔ
   • Null҆શରԠ
   • άϩʔόϧؔ਺ͷ௥Ճ
   • when໰୊ରԠ
   

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6. Mockito in Java
   // Java
   import static org.mockito.Mockito.*;
   Hoge mock = mock(Hoge.class);
   when(mock.sayHello()).thenReturn("Hello");
   when(mock.sayBye()).thenReturn("Bye");
   

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7. Convert to Kotlin
   // Kotlin
   import org.mockito.Mockito.*
   val mock = mock(Hoge::class.java)
   `when`(mock.sayHello()).thenReturn("Hello")
   `when`(mock.sayBye()).thenReturn("Bye")
   

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8. mockito-kotlin
   // Kotlin
   import com.nhaarman.mockito_kotlin.*
   val mock = mock {
   on { sayHello() } doReturn "Hello"
   on { sayBye() } doReturn "Bye"
   }
   

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9. ݟ΍͍͢
   

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10. Null҆શରԠ
    • Null҆શͷ͍ͤͰɺMockitoͷanyͰNPE
    • NonNullͳҾ਺ʹanyΛ౉͢ͱൃੜ
    • anyͱanyOrNull
    

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11. άϩʔόϧؔ਺
    • any, anyOrNull
    • atLeast, only, never
    • verify
    • whenever
    

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12. when໰୊
    • Mockitoͷwhenϝιου
    • Kotlinͷwhen͸༧໿ޠ
    • `when`ͱॻ͔͘͠ແ͍
    • mockito-kotlinͰ͸୅ΘΓʹwhenever΍on͕
    ࢖͑Δ
    

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13. mockito-kotlin͸͍͍ͧ
    

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14. Thanks!
    

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