Adds AddResponseParameterGatewayFilterFactoryTests

spring-cloud-gateway-core/src/test/java/org/springframework/cloud/gateway/filter/factory/AddResponseParameterGatewayFilterFactoryTests.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright 2013-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.springframework.cloud.gateway.filter.factory;
+
+import java.net.URI;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.SpringBootConfiguration;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.cloud.gateway.route.RouteLocator;
+import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
+import org.springframework.cloud.gateway.test.BaseWebClientTests;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Import;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import static org.springframework.boot.test.context.SpringBootTest.WebEnvironment.RANDOM_PORT;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = RANDOM_PORT)
+@DirtiesContext
+public class AddResponseParameterGatewayFilterFactoryTests extends BaseWebClientTests {
+
+	@Test
+    public void testResposneParameterFilter() {
+		URI uri = UriComponentsBuilder.fromUriString(this.baseUri+"/get").build(true).toUri();
+		String host = "www.addresponseparamjava.org";
+		String expectedValue = "myresponsevalue";
+		testClient.get()
+				.uri(uri)
+				.header("Host", host)
+				.exchange()
+				.expectHeader().valueEquals("example", expectedValue);
+	}
+
+	@EnableAutoConfiguration
+	@SpringBootConfiguration
+	@Import(DefaultTestConfig.class)
+	public static class TestConfig {
+		@Value("${test.uri}")
+		String uri;
+
+		@Bean
+		public RouteLocator testRouteLocator(RouteLocatorBuilder builder) {
+			return builder.routes()
+					.route("add_response_param_java_test", r ->
+							r.path("/get").and().host("**.addresponseparamjava.org")
+									.filters(f -> f.prefixPath("/httpbin")
+											.addResponseHeader("example", "myresponsevalue"))
+									.uri(uri))
+					.build();
+		}
+	}
+
+}