如何编写java单元测试来构建elasticsearch查询？

import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.elasticsearch.search.sort.SortOrder;
import org.junit.jupiter.api.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import java.io.IOException;

import static org.mockito.Mockito.when;

public class ElasticsearchQueryUnitTest {

    @Mock
    private RestHighLevelClient mockClient;

    @Test
    public void testElasticsearchQuery() throws IOException {
        MockitoAnnotations.openMocks(this);

        // 构建查询请求
        SearchRequest searchRequest = new SearchRequest("index_name");
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        searchSourceBuilder.query(QueryBuilders.matchQuery("field_name", "search_term"));
        searchSourceBuilder.sort("sort_field", SortOrder.DESC);
        searchRequest.source(searchSourceBuilder);

        // 模拟Elasticsearch响应
        SearchResponse mockResponse = new SearchResponse();
        // 设置响应结果...

        // 设置模拟行为
        when(mockClient.search(searchRequest, RequestOptions.DEFAULT)).thenReturn(mockResponse);

        // 执行查询
        SearchResponse response = mockClient.search(searchRequest, RequestOptions.DEFAULT);

        // 断言结果...
    }
}