我正在尝试学习Kotlin，并测试它如何在Spring
Boot中工作。我的应用程序使用mongo数据库存储数据，我有一个Jersey资源来检索数据。我正在使用spring-boot- test和测试RestTestTemplate。

在RestTestTemplate具有exchange这需要一个方法ParameterizedTypeReference。此类具有受保护的构造函数。因此，我从Kotlin设法使用它的唯一方法是：

class ListOfPeople : ParameterizedTypeReference<List<Person>>()

这是我的测试方法：

@Test
fun `get list of people`() {
    // create testdata
    datastore.save(Person(firstname = "test1", lastname = "lastname1"))
    datastore.save(Person(firstname = "test2", lastname = "lastname2"))
    datastore.save(Person(firstname = "test3", lastname = "lastname2"))
    datastore.save(Person(firstname = "test4", lastname = "lastname2"))

    val requestEntity = RequestEntity<Any>(HttpMethod.GET, URI.create("/person"))

    // create typereference for response de-serialization
    class ListOfPeople : ParameterizedTypeReference<List<Person>>() // can this be done inline in the exchange method?
    val responseEntity : ResponseEntity<List<Person>> = restTemplate.exchange(requestEntity, ListOfPeople())

    assertNotNull(responseEntity)
    assertEquals(200, responseEntity.statusCodeValue)
    assertTrue( responseEntity.body.size >= 4 )

    responseEntity.body.forEach { person ->
        println("Found person: [${person.firstname} ${person.lastname}] " +
                ", born [${person.birthdate}]")
    }
}

这是这样做的正确（或唯一）方法，还是有更好的方法？

如果有帮助，这里是整个测试的链接：github上的testclass