import org.opensearch.core.xcontent.ToXContent;
import org.opensearch.core.xcontent.XContentBuilder;

public class SearchEngineUtilTest extends UnitFessTestCase {

    @Test
    public void test_getXContentBuilderOutputStream_success() {
        XContentBuilderCallback callback = (builder, params) -> {
            builder.startObject();
            builder.field("test", "value");
            builder.endObject();