java - 如何使用 Elasticsearch async api 控制响应

Question

使用 Elasticsearch 时如何控制 IndexResponse async api带有 HighLevelRestClient v7.5？

也许我需要模拟 Low Level REST Client并为我的 High Level REST Client 使用那个模拟？ 🤔

@Test
void whenIndexResponseHasFailuresDoItShouldReturnFalse() {

  // arrange
  var indexResponse = mock(IndexResponse.class);
  when(indexResponse.getResult()).thenReturn(Result.UPDATED);

  var restHighLevelClient = mock(RestHighLevelClient.class);
  when(restHighLevelClient.indexAsync())
      //do something here??

  var indexReqest = new IndexRequest(...);

  //act
  var myHelper = new MyHelper(restHighLevelClient);
  var result = myHelper.doIt(indexReqest)
    .get();

  //assert
  assert(result).isFalse();
}

class MyHelper {

  //injected RestHighLevelClient

  CompletableFuture<Boolean> doIt(Customer customer) {

    var result = new CompletableFuture<Boolean>();
    var indexRequest = new IndexRequest(...);

    restHighLevelClient.indexAsync(indexRequest, RequestOptions.DEFAULT
         , new ActionListener<IndexResponse>() {
      @Override
      public void onResponse(IndexResponse indexResponse) {  //want to control indexResponse
        if (indexResponse.getResult() == Result.UPDATED) {
          result.complete(false);
        } else {
          result.complete(true);
        }
      }

      @Override
      public void onFailure(Exception e) {
        ...
      }
    });

    return result;
  }
}

更新 Sample project使用 Oleg 的回答

Answer 1

模拟 RestHighLevelClient 然后在 indexAsync 模拟 IndexResponse 并将其传递给 ActionListener。

RestHighLevelClient restHighLevelClient = mock(RestHighLevelClient.class);
when(restHighLevelClient.indexAsync(any(), any(), any())).then(a -> {
    ActionListener<IndexResponse> listener = a.getArgument(2);
    IndexResponse response = mock(IndexResponse.class);
    when(response.getResult()).then(b -> {
        return Result.UPDATED;
    });
    listener.onResponse(response);
    return null;
});
MyHelper myHelper = new MyHelper(restHighLevelClient);
Boolean result = myHelper.doIt(null).get();
assertFalse(result);

此外，配置 Mockito 以支持模拟 final 方法，否则 NPE将在模拟 indexAsync 时抛出。

Option 1

Instead of using the mockito-core artifact, include the mockito-inline artifact in your project

Option 2

Create a file src/test/resources/mockito-extensions/org.mockito.plugins.MockMaker with mock-maker-inline as the content