如何在JUnit 5测试中从请求的InvocationBuilder对象获取标头

Question

I want to test a method which is adding a header in a request to outside public API.

The method looks like:

@Service
@AllArgsConstructor
class ProductsFacadeImpl implements ProductsFacade {

  private NutritionixHeader nutritionixHeader;

  @Override
  public Invocation.Builder prepareHeaderForApiCall(String query) {
    Client client = ClientBuilder.newClient();
    WebTarget webTarget =
        client.target("https://trackapi.nutritionix.com/v2/search/instant?query=" + query);
    Invocation.Builder invocationBuilder = webTarget.request(MediaType.APPLICATION_JSON_VALUE);
    invocationBuilder.header("x-app-id", nutritionixHeader.getNutritionixAppId());
    invocationBuilder.header("x-app-key", nutritionixHeader.getNutritionixAppKey());
    return invocationBuilder;
  }
}

new version method for EDIT purpose:

  @Override
  public Invocation prepareHeaderForApiCall(String query) {
    Client client = ClientBuilder.newClient();
    WebTarget webTarget =
        client.target("https://trackapi.nutritionix.com/v2/search/instant?query=" + query);
    Invocation.Builder invocationBuilder = webTarget.request(MediaType.APPLICATION_JSON_VALUE);
    invocationBuilder.header("x-app-id", nutritionixHeader.getNutritionixAppId());
    invocationBuilder.header("x-app-key", nutritionixHeader.getNutritionixAppKey());
    return invocationBuilder.buildGet();
  }

In my JUnit 5 test, I want to check if my header contains two objects which are required by public API. It's:

"x-app-id"

and

"x-app-key"

My test looks like:

@Test
  void prepareHeaderForApiCall() {
    var query = "query";

    given(nutritionixHeader.getNutritionixAppId()).willReturn(appId);
    given(nutritionixHeader.getNutritionixAppKey()).willReturn(appKey);

    Invocation.Builder builder = productsFacade.prepareHeaderForApiCall(query);

    builder.get();

    assertEquals(appId, builder.get().getHeaders().entrySet().stream().filter(entry -> entry.getKey().equals("x-app-id")).map(Map.Entry::getValue).findFirst().orElse(null));

  }

The problem is that the method

getHeaders()

in my stream does not contain headers which I added and it looks like:

I want to know how I can get a header params objects which are placed in a requestContext object as a header objects like below:

EDIT:

I found one interesting thing with debugger and evaluate expression in IntelliJ, namely:

with this above expression, I can find out my two added headers but I cannot use the same expression in a code.

I will be grateful for a suggestion about how to reach a goal by getting headers object from the requestContext object.

Answer 1

You could try following:

1) builder.get().getMetadata()

2) builder.get().getStringHeaders()

3) if previous two fail ((ClientResponse)ReflectionTestUtils.getField(builder.get(), "context")).getHeaders()