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, URI.create("/test"));
        return exchange;
    }
test case for WebClientPlugin {@link WebClientPlugin#named()}.
shenyu-plugin/shenyu-plugin-httpclient/src/test/java/org/apache/shenyu/plugin/httpclient/WebClientPluginTest.java