我一直在尝试编写一个Kotling Sping Boot 测试，利用TestRestTemplate来调用我的应用程序上的一个端点，该端点上有一个PreAuthorize注解，但我无法向授权的OAuth2用户传播SecurityContext。我一直得到以下异常：
在SecurityContext中找不到身份验证对象
我试过几种不同的方法。下面，我将描述原始的设置，以及我所尝试的：

控制器

@RestController
@RequestMappting(/api/v1)
@PreAuthorize("@authorizationService.canDoThat()") // Some logic to compare request to backend DB. Test does not hit this method
class SomeController() {
   ...
   ...

   @PutMapping(/update)
   fun update(@RequestBody request) {
     // Some logic to update something (test doesn't hit this part)
   }
}

测试

@Test
fun `update`() {
   val url = "http://localhost:${port}${basePath}/update"

   val headers = HttpHeaders()
   val body = HttpEntity(
      UpdateRequest(
         // The request object
      ), headers
   )

   val response = restTemplate.exchange(
        url,
        HttpMethod.PUT,
        body,
        typeReference<SomeResponseType>()
    )
}

使用WithMockUser测试

@Test
@WithMockUser(username = "username", password = "password", authorities = ["SCOPE_write"])
fun `update`() {
   val url = "http://localhost:${port}${basePath}/update"

   val headers = HttpHeaders()
   val body = HttpEntity(
      UpdateRequest(
         // The request object
      ), headers
   )

   val response = restTemplate.exchange(
        url,
        HttpMethod.PUT,
        body,
        typeReference<SomeResponseType>()
    )
}

测试手动设置上下文

@Test
fun `update`() {
   val url = "http://localhost:${port}${basePath}/update"

   val jwt = Jwt(
         "token-value",
         Instant.now(),
         Instant.now().plusSeconds(60),
         mapOf("Authorization" to "Bearer token-value"),
         mapOf("someClaim" to someClaimValue)
   )
   val authorities = setOf(GrantedAuthority { "SCOPE_write" })
   val oauthAuthentication = JwtAuthenticationToken(jwt, authorities)

   // Set security context
   val context: SecurityContext = SecurityContextHolder.createEmptyContext()
   context.authentication = oauthAuthentication
   SecurityContextHolder.setContext(context)

   val headers = HttpHeaders()
   val body = HttpEntity(
      UpdateRequest(
         // The request object
      ), headers
   )

   val response = restTemplate.exchange(
        url,
        HttpMethod.PUT,
        body,
        typeReference<SomeResponseType>()
    )
}