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JUnit 5 assertAll

Last updated at Posted at 2018-12-24

JUnit 5 の導入

Gradle を使っている場合は次のように記述を加える。 Gradle 4.6 よりサポートされている。

Gradle

build.gradle
dependencies {
    testCompile("org.junit.jupiter:junit-jupiter-api:5.3.2")
    testRuntime("org.junit.jupiter:junit-jupiter-engine:5.3.2")
}

test {
    useJUnitPlatform()
}

Kotlin

build.gradle.kts
dependencies {
    testCompile("org.junit.jupiter:junit-jupiter-api:5.3.2")
    testRuntime("org.junit.jupiter:junit-jupiter-engine:5.3.2")
}

task.withType<Test> {
    useJUnitPlatform()
}

全てのチェックを全て実行する - assertAll

Java と Kotlin ではインポートする関数を変えたほうがよい。

Java
import org.junit.jupiter.api.Assertions.assertAll

assertAll(
    () -> { assertEquals(1, 1) },
    () -> { assertEquals(1, 2) }
)
Kotlin
import org.junit.jupiter.api.assertAll

assertAll(
    { assertEquals(1, 1) },
    { assertEquals(1, 2) }
)

もし Kotlin で Java と同じ関数を使うなら...

Kotlin
import org.junit.jupiter.api.Assertions.assertAll

assertAll(
    Executable { assertEquals(1, 1) },
    Executable { assertEquals(1, 2) }
)
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