add unit-test

Signed-off-by: jiangyuan <joe469391363@gmail.com>

spring-cloud-gateway-server-mvc/src/test/java/org/springframework/cloud/gateway/server/mvc/filter/RetryFilterFunctionTests.java

@@ -16,30 +16,41 @@
 
 package org.springframework.cloud.gateway.server.mvc.filter;
 
+import java.time.Duration;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.apache.hc.core5.util.Timeout;
 import org.junit.jupiter.api.Test;
 
+import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringBootConfiguration;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.http.client.ClientHttpRequestFactoryBuilder;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
 import org.springframework.boot.test.web.server.LocalServerPort;
+import org.springframework.cloud.gateway.server.mvc.config.GatewayMvcProperties;
+import org.springframework.cloud.gateway.server.mvc.handler.ProxyExchange;
+import org.springframework.cloud.gateway.server.mvc.handler.ProxyExchangeHandlerFunction;
+import org.springframework.cloud.gateway.server.mvc.handler.RestClientProxyExchange;
 import org.springframework.cloud.gateway.server.mvc.test.HttpbinTestcontainers;
 import org.springframework.cloud.gateway.server.mvc.test.LocalServerPortUriResolver;
 import org.springframework.cloud.gateway.server.mvc.test.TestLoadBalancerConfig;
 import org.springframework.cloud.gateway.server.mvc.test.client.TestRestClient;
 import org.springframework.cloud.loadbalancer.annotation.LoadBalancerClient;
+import org.springframework.context.ApplicationContext;
 import org.springframework.context.annotation.Bean;
+import org.springframework.context.event.ContextRefreshedEvent;
 import org.springframework.core.log.LogMessage;
 import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.http.client.ClientHttpRequestFactory;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.util.StringUtils;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -47,11 +58,14 @@ import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.client.RestClient;
+import org.springframework.web.servlet.function.HandlerFunction;
 import org.springframework.web.servlet.function.RouterFunction;
 import org.springframework.web.servlet.function.ServerResponse;
 
 import static org.springframework.cloud.gateway.server.mvc.filter.FilterFunctions.adaptCachedBody;
 import static org.springframework.cloud.gateway.server.mvc.filter.FilterFunctions.prefixPath;
+import static org.springframework.cloud.gateway.server.mvc.filter.FilterFunctions.setPath;
 import static org.springframework.cloud.gateway.server.mvc.filter.RetryFilterFunctions.retry;
 import static org.springframework.cloud.gateway.server.mvc.handler.GatewayRouterFunctions.route;
 import static org.springframework.cloud.gateway.server.mvc.handler.HandlerFunctions.http;
@@ -93,6 +107,17 @@ public class RetryFilterFunctionTests {
 			.isEqualTo("3");
 	}
 
+	@Test
+	public void retryWorksWithHttpComponentsClient() {
+		restClient.get()
+			.uri("/retrywithhttpcomponentsclient?key=retryWorksWithHttpComponentsClient")
+			.exchange()
+			.expectStatus()
+			.isOk()
+			.expectBody(String.class)
+			.isEqualTo("3");
+	}
+
 	@SpringBootConfiguration
 	@EnableAutoConfiguration
 	@LoadBalancerClient(name = "httpbin", configuration = TestLoadBalancerConfig.Httpbin.class)
@@ -110,6 +135,41 @@ public class RetryFilterFunctionTests {
 			// @formatter:on
 		}
 
+		@Bean
+		public RouterFunction<ServerResponse> gatewayRouterFunctionsRetryWithHttpComponentsClient(
+				GatewayMvcProperties properties,
+				ObjectProvider<HttpHeadersFilter.RequestHttpHeadersFilter> requestHttpHeadersFilters,
+				ObjectProvider<HttpHeadersFilter.ResponseHttpHeadersFilter> responseHttpHeadersFilters,
+				ApplicationContext applicationContext) {
+
+			// build httpComponents client factory
+			ClientHttpRequestFactory clientHttpRequestFactory = ClientHttpRequestFactoryBuilder.httpComponents()
+				.withConnectionManagerCustomizer(builder -> builder.setMaxConnTotal(2).setMaxConnPerRoute(2))
+				.withDefaultRequestConfigCustomizer(
+						c -> c.setConnectionRequestTimeout(Timeout.of(Duration.ofMillis(3000))))
+				.build();
+
+			// build proxyExchange use httpComponents
+			RestClient.Builder restClientBuilder = RestClient.builder();
+			restClientBuilder.requestFactory(clientHttpRequestFactory);
+			ProxyExchange proxyExchange = new RestClientProxyExchange(restClientBuilder.build(), properties);
+
+			// build handler function use httpComponents
+			ProxyExchangeHandlerFunction function = new ProxyExchangeHandlerFunction(proxyExchange,
+					requestHttpHeadersFilters, responseHttpHeadersFilters);
+			function.onApplicationEvent(new ContextRefreshedEvent(applicationContext));
+
+			// @formatter:off
+			return route("testretrywithhttpcomponentsclient")
+					.GET("/retrywithhttpcomponentsclient", function)
+					.before(new LocalServerPortUriResolver())
+					.filter(retry(3))
+					.filter(setPath("/retry"))
+					.filter(prefixPath("/do"))
+					.build();
+			// @formatter:on
+		}
+
 		@Bean
 		public RouterFunction<ServerResponse> gatewayRouterFunctionsRetryBody() {
 			// @formatter:off

spring-cloud-gateway-server-mvc/src/test/resources/application.yml

@@ -6,4 +6,7 @@ logging:
     org.springframework.retry: TRACE
 spring:
   mvc:
-    log-request-details: true
+    log-request-details: true
+  http:
+    client:
+      factory: REACTOR