MockServerHttpRequest and Response set cookie headers

Issue: SPR-15522

spring-test/src/main/java/org/springframework/mock/http/server/reactive/MockServerHttpRequest.java

@@ -21,6 +21,7 @@ import java.net.URI;
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.List;
 import java.util.Optional;
 
@@ -231,7 +232,7 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 		/**
 		 * Add one or more cookies.
 		 */
-		B cookie(String name, HttpCookie... cookie);
+		B cookie(HttpCookie... cookie);
 
 		/**
 		 * Add the given cookies.
@@ -390,8 +391,8 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 		}
 
 		@Override
-		public BodyBuilder cookie(String name, HttpCookie... cookies) {
-			this.cookies.put(name, Arrays.asList(cookies));
+		public BodyBuilder cookie(HttpCookie... cookies) {
+			Arrays.stream(cookies).forEach(cookie -> this.cookies.add(cookie.getName(), cookie));
 			return this;
 		}
 
@@ -485,9 +486,15 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 
 		@Override
 		public MockServerHttpRequest body(Publisher<? extends DataBuffer> body) {
+			applyCookies();
 			return new MockServerHttpRequest(this.method, this.url, this.contextPath,
 					this.headers, this.cookies, this.remoteAddress, body);
 		}
+
+		private void applyCookies() {
+			this.cookies.values().stream().flatMap(Collection::stream)
+					.forEach(cookie -> this.headers.add(HttpHeaders.COOKIE, cookie.toString()));
+		}
 	}
 
 }

spring-test/src/main/java/org/springframework/mock/http/server/reactive/MockServerHttpResponse.java

@@ -18,6 +18,7 @@ package org.springframework.mock.http.server.reactive;
 
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
+import java.util.Collection;
 import java.util.Optional;
 import java.util.function.Function;
 
@@ -28,6 +29,7 @@ import reactor.core.publisher.Mono;
 import org.springframework.core.io.buffer.DataBuffer;
 import org.springframework.core.io.buffer.DataBufferUtils;
 import org.springframework.core.io.buffer.DefaultDataBufferFactory;
+import org.springframework.http.HttpHeaders;
 import org.springframework.http.server.reactive.AbstractServerHttpResponse;
 import org.springframework.util.Assert;
 import org.springframework.util.MimeType;
@@ -85,6 +87,8 @@ public class MockServerHttpResponse extends AbstractServerHttpResponse {
 
 	@Override
 	protected void applyCookies() {
+		getCookies().values().stream().flatMap(Collection::stream)
+				.forEach(cookie -> getHeaders().add(HttpHeaders.SET_COOKIE, cookie.toString()));
 	}
 
 	@Override

spring-test/src/test/java/org/springframework/mock/http/server/reactive/MockServerHttpRequestTests.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2002-2017 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.mock.http.server.reactive;
+
+import java.util.Arrays;
+
+import org.junit.Test;
+
+import org.springframework.http.HttpCookie;
+import org.springframework.http.HttpHeaders;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Unit tests for {@link MockServerHttpRequest}.
+ * @author Rossen Stoyanchev
+ */
+public class MockServerHttpRequestTests {
+
+
+	@Test
+	public void cookieHeaderSet() throws Exception {
+		HttpCookie foo11 = new HttpCookie("foo1", "bar1");
+		HttpCookie foo12 = new HttpCookie("foo1", "bar2");
+		HttpCookie foo21 = new HttpCookie("foo2", "baz1");
+		HttpCookie foo22 = new HttpCookie("foo2", "baz2");
+
+		MockServerHttpRequest request = MockServerHttpRequest.get("/")
+				.cookie(foo11, foo12, foo21, foo22).build();
+
+		assertEquals(Arrays.asList(foo11, foo12), request.getCookies().get("foo1"));
+		assertEquals(Arrays.asList(foo21, foo22), request.getCookies().get("foo2"));
+		assertEquals(Arrays.asList("foo1=bar1", "foo1=bar2", "foo2=baz1", "foo2=baz2"),
+				request.getHeaders().get(HttpHeaders.COOKIE));
+	}
+
+}

spring-test/src/test/java/org/springframework/mock/http/server/reactive/MockServerHttpResponseTests.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2002-2017 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.mock.http.server.reactive;
+
+import java.util.Arrays;
+
+import org.junit.Test;
+
+import org.springframework.http.HttpCookie;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.ResponseCookie;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Unit tests for {@link MockServerHttpResponse}.
+ * @author Rossen Stoyanchev
+ */
+public class MockServerHttpResponseTests {
+
+	@Test
+	public void cookieHeaderSet() throws Exception {
+
+		ResponseCookie foo11 = ResponseCookie.from("foo1", "bar1").build();
+		ResponseCookie foo12 = ResponseCookie.from("foo1", "bar2").build();
+		ResponseCookie foo21 = ResponseCookie.from("foo2", "baz1").build();
+		ResponseCookie foo22 = ResponseCookie.from("foo2", "baz2").build();
+
+		MockServerHttpResponse response = new MockServerHttpResponse();
+		response.addCookie(foo11);
+		response.addCookie(foo12);
+		response.addCookie(foo21);
+		response.addCookie(foo22);
+
+		response.applyCookies();
+
+		assertEquals(Arrays.asList("foo1=bar1", "foo1=bar2", "foo2=baz1", "foo2=baz2"),
+				response.getHeaders().get(HttpHeaders.SET_COOKIE));
+	}
+
+}