Micronaut HttpClients 交換體始終為 null

Question

我已經設置了一個簡單的測試 Controller：

@Controller("/test")
public class SampleController {
  @Get(value = "1", produces = MediaType.TEXT_PLAIN)
  public String helloWorld1() {
    return "Hello, World!";
  }

  @Get(value = "2", produces = MediaType.TEXT_PLAIN)
  public HttpResponse<String> helloWorld2() {
    return HttpResponse.ok("Hello, World!");
  }
}

我在我的單元測試中使用了低級 HTTPClient，它看起來像這樣：

@MicronautTest
public class SampleControllerTest {

  @Inject
  EmbeddedServer server;

  @Inject
  @Client("/test")
  HttpClient client;

  @Test
  void shouldReturnHelloWorld1_1() {
    HttpResponse<String> response = client.toBlocking().exchange(HttpRequest.GET("/1").accept(
        MediaType.TEXT_PLAIN));

    assertEquals(200, response.code());
    assertEquals("Hello, World!", response.body());
  }

  @Test
  void shouldReturnHelloWorld1_2() {
    String response = client.toBlocking().retrieve(HttpRequest.GET("/1").accept(MediaType.TEXT_PLAIN));

    assertEquals("Hello, World!", response);
  }

  @Test
  void shouldReturnHelloWorld2() {
    HttpResponse<String> response = client.toBlocking().exchange(HttpRequest.GET("/2").accept(
        MediaType.TEXT_PLAIN));

    assertEquals(200, response.code());
    assertEquals("Hello, World!", response.body());
  }
}

據我了解，響應正文不應該是 null，但它是用於測試shouldReturnHelloWorld2和shouldReturnHelloWorld1_1 - 所以當使用HttpClient.exchange()時它總是 null。 在我看來，這似乎是錯誤還是這里有什么問題？

您可以通過克隆我的示例存儲庫來檢查整個代碼並自己運行測試： https://github.com/tobi6112/micronaut-httpclient-issue

更新：剛剛注意到測試按預期工作

HttpResponse<String> response = client.toBlocking()
        .exchange(HttpRequest.GET("/2").accept(MediaType.TEXT_PLAIN), String.class);

Answer 1

就我而言，這兩個選項有效：

final var result = client.toBlocking().exchange(HttpRequest.GET(url).accept(MediaType.APPLICATION_JSON), String.class);

HttpResponse<String> response  = client.toBlocking().exchange(HttpRequest.GET(url).accept(MediaType.APPLICATION_JSON), String.class);