使用TestRestTemplate和MockRestServiceServer时,解析异常而不是实体列表不起作用
我有一个简单的控制器(代码)
@RestController
@RequestMapping("/profiles" , produces = [MediaType.APPLICATION_JSON_VALUE])
class Controller(@Autowired val restClient: RestClient) {
@GetMapping("/simple-get")
fun simpleGetCall(): List<Profile> {
restClient.callClientGet()
return listOf(
Profile("firstname1", "lastname1"),
Profile("firstname2", "lastname2"))
}
}
控制器正在调用 RestClient 进行客户端调用(代码)
@Service
class RestClient(@Autowired val restTemplate: RestTemplate) {
fun callClientGet(){
try {
restTemplate.getForEntity(
"/profiles/simple-get",
Number::class.java
)
}catch(exception: Exception){
throw MyClientCallException("this is an exception")
}
}
}
MyClientCallException 看起来像这样(代码)
class MyClientCallException(message: String) :
ResponseStatusException(HttpStatus.INTERNAL_SERVER_ERROR, message)
我的班级中有 3 个功能测试(代码)我使用org.springframework.test.web.client.MockRestServiceServer作为服务器
@Test
fun `when calling service, and client returns Accepted, status should be OK`() {
val responseType: ParameterizedTypeReference<List<Profile>> =
object : ParameterizedTypeReference<List<Profile>>() {}
mockServer?.expect(MockRestRequestMatchers.requestTo(URI("http://localhost:8082/profiles/simple-get")))
?.andExpect(MockRestRequestMatchers.method(HttpMethod.GET))
?.andRespond(
MockRestResponseCreators.withStatus(HttpStatus.ACCEPTED)
.contentType(MediaType.APPLICATION_JSON))
val response = testRestTemplate.exchange(
"/profiles/simple-get",
HttpMethod.GET,
null,
responseType
)
response.statusCode shouldBe HttpStatus.OK
response.body?.size shouldBe 2
}
此测试按预期工作。客户端正ACCEPTED在返回,服务器调用正在返回List<Profile>
第二次测试失败。
@Test
fun `when calling service, and client timeout, it should return 500 - not working, problems with parsing`() {
val responseType: ParameterizedTypeReference<List<Profile>> =
object : ParameterizedTypeReference<List<Profile>>() {}
mockServer?.expect(MockRestRequestMatchers.requestTo(URI("http://localhost:8082/profiles/simple-get")))
?.andExpect(MockRestRequestMatchers.method(HttpMethod.GET))
?.andRespond(
MockRestResponseCreators.withStatus(HttpStatus.REQUEST_TIMEOUT)
.contentType(MediaType.APPLICATION_JSON))
val response = testRestTemplate.exchange(
"/profiles/simple-get",
HttpMethod.GET,
null,
responseType
)
response.statusCode shouldBe HttpStatus.INTERNAL_SERVER_ERROR
}
当我进行客户端调用时,它会假装超时异常,这种情况总是会发生。然后返回的Exceptions不能被解析为List<Profile>然后给出以下错误:
org.springframework.web.client.RestClientException:提取类型 [java.util.List<? 扩展 model.Profile>] 和内容类型 [application/json];嵌套异常是 org.springframework.http.converter.HttpMessageNotReadableException:JSON 解析错误:无法
java.util.ArrayList<model.Profile>从对象值(令牌JsonToken.START_OBJECT)反序列化类型的
值
;嵌套异常是 com.fasterxml.jackson.databind.exc.MismatchedInputException: 无法java.util.ArrayList<model.Profile>从JsonToken.START_OBJECT[Source: (PushbackInputStream); 处的Object value (token )反序列化类型的值;行:1,列:1]
接下来的 2 个测试是解决方法,但对我来说都不好。
@Test
fun `when calling service, and client timeout, it should return 500 working `() {
val responseType: ParameterizedTypeReference<List<Profile>> =
object : ParameterizedTypeReference<List<Profile>>() {}
mockServer?.expect(MockRestRequestMatchers.requestTo(URI("http://localhost:8082/profiles/simple-get")))
?.andExpect(MockRestRequestMatchers.method(HttpMethod.GET))
?.andRespond(
MockRestResponseCreators.withStatus(HttpStatus.REQUEST_TIMEOUT)
.contentType(MediaType.APPLICATION_JSON))
assertThrows<RestClientException> {
testRestTemplate.exchange(
"/profiles/simple-get",
HttpMethod.GET,
null,
responseType
)
}
}
响应类型仍与原始类型相同。但它捕获了 RestClientException。我期待抛出我的 MyClientCallException 并抓住它。(它返回500,这很好,但我想看到自己的异常。这只是一个例子,也许我想返回不同的错误代码)
@Test
fun `when calling service, and client timeout, it should return 500 - but response type is wrong`() {
mockServer?.expect(MockRestRequestMatchers.requestTo(URI("http://localhost:8082/profiles/simple-get")))
?.andExpect(MockRestRequestMatchers.method(HttpMethod.GET))
?.andRespond(
MockRestResponseCreators.withStatus(HttpStatus.REQUEST_TIMEOUT)
.contentType(MediaType.APPLICATION_JSON))
val response = testRestTemplate.exchange(
"/profiles/simple-get",
HttpMethod.GET,
null,
String::class.java
)
response.statusCode shouldBe HttpStatus.INTERNAL_SERVER_ERROR
}
第二个:我只是将所有内容解析为字符串,这有助于解决它。但我最初正在等待List<Profile>,告诉testRestTemplate,我只想要一个字符串作为响应会伪造测试。
有什么办法可以使它更好或解决这个问题?
您可以查看完整的项目:https : //github.com/joergi/tryouts/tree/main/kotlin-mockrestserver以获得更好的试用。
PS 我知道,这个问题类似于Spring TestRestTemplate parse Error 而不是 HttpClientErrorException 抛出,但它仍然没有答案。