Java 单元测试中未捕获控制器中的Micronaut返回HttpResponse.serverError

我正在测试micronaut控制器。控制器代码如下所示：

  @Get("/")
    HttpResponse<String> getData(String crsNumber ) {
        try {
            final HttpResponse response = formDataService.getData(crsNumber);
            return response;

        } catch (HttpClientException e) {
            return HttpResponse.serverError(e.getMessage());
        }
    }

when(formDataService.getData(anyString())).thenThrow(new HttpClientException("FormService Internal Error!"));

final HttpResponse rs = formControllerClient.getData("test");
Assertions.assertEquals(HttpStatus.SERVICE_UNAVAILABLE, rs.getStatus());

抛出HttpClientException时，控制器确实捕获了它，并运行到返回语句：

return HttpResponse.serverError(e.getMessage());

但是在单元测试中

Assertions.assertEquals(HttpStatus.SERVICE_UNAVAILABLE, rs.getStatus());

从未达到，因为它抛出

Internal Server Error
io.micronaut.http.client.exceptions.HttpClientResponseException: Internal Server Error
    at io.micronaut.http.client.netty.DefaultHttpClient$11.channelRead0(DefaultHttpClient.java:2046)
    at io.micronaut.http.client.netty.DefaultHttpClient$11.channelRead0(DefaultHttpClient.java:1964)
    at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
    at io.micronaut.http.netty.stream.HttpStreamsHandler.channelRead(HttpStreamsHandler.java:190)
    at io.micronaut.http.netty.stream.HttpStreamsClientHandler.channelRead(HttpStreamsClientHandler.java:185)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
    at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

---

知道原因吗？

在这里发现了问题：如果返回的错误代码超过400，Micronaut将抛出HttpClientResponseException

单元测试的完整代码如下：

@Test
public void callServiceErrorTest() throws InvalidKeySpecException, NoSuchAlgorithmException, JOSEException {
    when(formDataService.getData(anyString())).thenThrow(new HttpClientException("FormService Internal Error!"));

    final HttpClientResponseException exception = Assertions.assertThrows(HttpClientResponseException.class, () -> {
        formControllerClient.getData(jwtString);
    });

    Assertions.assertEquals(HttpStatus.INTERNAL_SERVER_ERROR, exception.getStatus());
}

---

能否显示

formControllerClient

指向的类型的源代码？能否在单元测试中显示模拟链以及控制器的完整代码？