error: cannot find symbol @MicronautTest()

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Kotest 4 was removed from Micronaut 4 (ref) so I follow this guide to install Kotest 5:

https://micronaut-projects.github.io/micronaut-test/snapshot/guide/index.html#settingUpKoTest5

However, after running the test using ./gradlew test I got this error.

error: cannot find symbol @MicronautTest()

MyTest.kt

import io.micronaut.test.extensions.kotest5.annotation.MicronautTest
import io.kotest.core.spec.style.AnnotationSpec

@MicronautTest
class MyTest : AnnotationSpec() {
    @Test
    fun testMyFunc() {
       ...
    }
}

build.gradle.kts

dependencies {
    kaptTest ("io.micronaut:micronaut-inject-java")
    testImplementation("io.micronaut.test:micronaut-test-kotest5:4.2.0")
    testImplementation("io.mockk:mockk:1.13.9")
    testImplementation("io.kotest:kotest-runner-junit5-jvm:5.8")
}

tasks.withType<Test>().configureEach {
    useJUnitPlatform()
}

micronaut {
    ...
    testRuntime("kotest5")
    ...
}

ProjectConfig.kt

import io.kotest.core.config.AbstractProjectConfig
import io.micronaut.test.extensions.kotest5.MicronautKotest5Extension

@Suppress("unused")
object ProjectConfig : AbstractProjectConfig() {
    override fun extensions() = listOf(MicronautKotest5Extension)
}
  • Micronaut version: 4.2.1
  • Kotlin version: 1.9.10

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