mockito-kotlin Keisuke Kobayashi Android Test Night #2

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

mockito-kotlin͸͍͍ͧ

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

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

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

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

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

ݟ΍͍͢

Null҆શରԠ • Null҆શͷ͍ͤͰɺMockitoͷanyͰNPE • NonNullͳҾ਺ʹanyΛ౉͢ͱൃੜ • anyͱanyOrNull

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

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

mockito-kotlin͸͍͍ͧ

Thanks!