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How_to_Test_Server-side_Kotlin.pdf
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Taro Nagasawa
September 11, 2018
Programming
590
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How_to_Test_Server-side_Kotlin.pdf
Kotlin Fest 2018 わいわい報告会 (
https://connpass.com/event/100752/
) で発表したスライドです
Taro Nagasawa
September 11, 2018
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Transcript
How to Test Server-side Kotlin 2018-09-11 長澤太郎
長澤太郎 • @ngsw_taro • Ubie株式会社 ソフトウェアエンジニア • 日本Kotlinユーザグループ代表
Redesign Medical Care
Kontributer しらじさん JOIN!!!!
お疲れ様でした! https://photos.google.com/share/AF1QipMux-IXIIBpf2Rr_HwWtQu5pICYJlVCS9yzDmdVbEm0Gajya5D9-pS0A__jXksrAg?key=N0dDZ1hWd HNFVTFodHlpN1BiaC1laXpqQXJkN1Z3 より引用
How to Test Server-side Kotlin エムスリー 前原さん、鈴木さん https://photos.google.com/share/AF1QipMux-IXIIBpf2Rr_HwWtQu5pICYJlVCS9yzDmdVbEm0Gajya5D9-pS0A__jXksrAg?key=N0dDZ1hWd HNFVTFodHlpN1BiaC1laXpqQXJkN1Z3 より引用
How to Test Server-side Kotlin 編
UbieではKotlin x SpringでAPI開発してます
テスト関係のフレームワークやライブラリ • JUnit5 - Jupiter • Spring Test - WebTestClient
• AssertJ • MockK • DbSetup-kotlin
JUnit5 class FooTest { @Nested inner class fooMethod { @Test
fun `should throw exception`() { assertThrows<MyException>() { Foo().foo() } } } }
class FooTest { @Nested inner class fooMethod { @Test fun
`should throw exception`() { assertThrows<MyException>() { Foo().foo() } } } } JUnit5
JUnit5 class FooTest { @Nested inner class fooMethod { @Test
fun `should throw exception`() { assertThrows<MyException>() { Foo().foo() } } } }
AssertJ val got = sut.findUser(id) assertThat(got).isNotNull assertThat(got?.name).isEqualTo("ほげ")
AssertJ val got = sut.findUser(id) assertThat(got).isNotNull assertThat(got?.name).isEqualTo("ほげ") Kotlin 1.3 Contractsで実現か!?
MockK interface UserRepository { suspend fun findUser(id: Long): User? }
val userRepo = mockk<UserRepository>() every { userRepo.findUser(1) } returns user
MockK interface UserRepository { suspend fun findUser(id: Long): User? }
val userRepo = mockk<UserRepository>() every { userRepo.findUser(1) } returns user coEvery { userRepo.findUser(1) } returns user
WebTestClient - expectBodyメソッド webTestClient.get() .exchange() .expectBody(MyApiBody::class.java) .isEqualTo<Nothing>(expectedBody) NullPointerException が出る!
WebTestClient - expectBody拡張関数 webTestClient.get() .exchange() .expectBody<MyApiBody>() .isEqualTo<Nothing>(expectedBody) import org.springframework.test.web.reactive.server.expectBody いける!
WebTestClient - expectBody拡張関数 webTestClient.get() .exchange() .expectBody<MyApiBody>() .isEqualTo<Nothing>(expectedBody) import org.springframework.test.web.reactive.server.expectBody いける!
が、サジェストされない
Pluginのバグ(issueあった)
しらじさん修正プルリク!!!神!!!!
リリースされるのは 1.3.20 乞うご期待