private ServerWebExchange generateServerWebExchange() {
        ServerWebExchange exchange = MockServerWebExchange.from(MockServerHttpRequest.get("/test").build());
        exchange.getAttributes().put(Constants.CONTEXT, mock(ShenyuContext.class));
        exchange.getAttributes().put(Constants.HTTP_URI, "/test");
        return exchange;
    }
test case for NettyHttpClientPlugin {@link NettyHttpClientPlugin#named()}.
shenyu-plugin/shenyu-plugin-httpclient/src/test/java/org/apache/shenyu/plugin/httpclient/NettyHttpClientPluginTest.java