Kotest beforeTest 无法连接到 MicronautTest 中的数据库

Question

我在Micronaut项目中创建了一个Kotest StringSpec测试，并试图清除数据库中的数据。

@MicronautTest(environments = [Environment.TEST], startApplication = false)
class PostRepositoryTest(private val posts: PostRepository, private val template: JdbcOperations) : StringSpec({
   "a test" {//test includes database operations worked well.
    }
}){
    override fun beforeEach(testCase: TestCase) {
       val delCount = this.template.prepareStatement("delete from posts") { it ->
            it.executeUpdate()
       }
       print("deleting items: $delCount")
  }

}

this.template.prepareStatement 语句由于无法获取数据库连接异常而失败。

Answer 1

将 beforeTest 挂钩包装到一个事务中。

在PostRepositoryTest

的构造函数中注入一个TransactionOperatoions

然后在回调中调用删除。

override fun beforeEach(testCase: TestCase) {
        val callback: TransactionCallback<Any, Int> = TransactionCallback { _: TransactionStatus<Any> ->
            val sql = "delete from posts";
            this.template.prepareStatement(sql) {
                it.executeUpdate()
            }
        }

        val cnt = tx.executeWrite(callback)
        println("deleted $cnt");
    }

Kotest beforeTest 无法连接到 MicronautTest 中的数据库

Kotest beforeTest can not connect to database in a MicronautTest

micronaut

micronaut-data