How to Test Server-side Kotlin
エムスリー 前原さん、鈴木さん
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How to Test
Server-side Kotlin
編
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UbieではKotlin x SpringでAPI開発してます
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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
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JUnit5
class FooTest {
@Nested
inner class fooMethod {
@Test
fun `should throw exception`() {
assertThrows() {
Foo().foo()
}
}
}
}
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class FooTest {
@Nested
inner class fooMethod {
@Test
fun `should throw exception`() {
assertThrows() {
Foo().foo()
}
}
}
}
JUnit5
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JUnit5
class FooTest {
@Nested
inner class fooMethod {
@Test
fun `should throw exception`() {
assertThrows() {
Foo().foo()
}
}
}
}
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AssertJ
val got = sut.findUser(id)
assertThat(got).isNotNull
assertThat(got?.name).isEqualTo("ほげ")
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AssertJ
val got = sut.findUser(id)
assertThat(got).isNotNull
assertThat(got?.name).isEqualTo("ほげ")
Kotlin 1.3
Contractsで実現か！？
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MockK
interface UserRepository {
suspend fun findUser(id: Long): User?
}
val userRepo = mockk()
every { userRepo.findUser(1) } returns user
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MockK
interface UserRepository {
suspend fun findUser(id: Long): User?
}
val userRepo = mockk()
every { userRepo.findUser(1) } returns user
coEvery { userRepo.findUser(1) } returns user