How do I provide my own DateTimeProvider with Spring Data - kotlin

Question

I am trying to provide a transactionally consistent set of datetimes
import org.springframework.beans.factory.ObjectFactory
import org.springframework.beans.factory.config.BeanFactoryPostProcessor
import org.springframework.context.annotation.Bean
import org.springframework.context.annotation.Configuration
import org.springframework.context.annotation.Scope
import org.springframework.data.auditing.DateTimeProvider
import org.springframework.transaction.support.SimpleTransactionScope
import java.time.Instant
import java.time.OffsetDateTime
import java.time.ZoneOffset
import java.util.Optional
#Configuration
open class TransactionScopeTimeConfiguration {
#Bean
open fun transactionBFPP(): BeanFactoryPostProcessor =
BeanFactoryPostProcessor { it.registerScope("transaction", SimpleTransactionScope()) }
#Bean
#Scope("transaction")
open fun nowInstant(): Instant = Instant.now()
#Bean
#Scope("transaction")
open fun nowOffsetDateTime(nowInstant: Instant): OffsetDateTime = nowInstant.atOffset(ZoneOffset.UTC)
#Bean
open fun transactionDateTimeProvider(factory: ObjectFactory<OffsetDateTime>): DateTimeProvider =
DateTimeProvider { Optional.of(factory.`object`) }
}
However, when debugging my test I note that the function inside of transactionDateTimeProvider is never called (the creation of the Bean is)
import org.assertj.core.api.Assertions.assertThat
import org.junit.jupiter.api.Test
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest
#DataJpaTest
#Import(TransactionScopeTimeConfiguration)
internal open class ExceptionDaoTest {
#Test
fun save(#Autowired exceptionDao: ExceptionJpaDao) {
val toCreate = ExceptionEntity("someid")
val saved = exceptionDao.save(toCreate)
assertThat(saved).isInstanceOf(ExceptionEntity::class.java)
.extracting({ it.id }, { it.businessDivisionId })
.containsExactly(toCreate.id, "someid")
.doesNotContainNull()
assertThat(saved.lastModifiedOn).isSameAs(saved.createdOn)
}
}
The test actually passes, but I haven't actually exercised this functionality in this test. It's important that any other datetimes are transactionally consistent with the audit traits.