Refactor location of MockServerHttpRequest/Response

This change puts the MockHttpServerRequest/Response under
org.springframework.mock.http.server.reactive.test which
mirrors the arrangement we have with the Servlet mock equivalents
and sets up the addition of MockHttpServerRequest/Response in
spring-test.

Issue: SPR-14421

spring-web/src/test/java/org/springframework/http/codec/ServerSentEventHttpMessageWriterTests.java

@@ -29,7 +29,7 @@ import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;
 import org.springframework.core.io.buffer.DataBuffer;
 import org.springframework.http.MediaType;
 import org.springframework.http.codec.json.Jackson2JsonEncoder;
-import org.springframework.http.server.reactive.MockServerHttpResponse;
+import org.springframework.mock.http.server.reactive.test.MockServerHttpResponse;
 import org.springframework.tests.TestSubscriber;
 
 import static org.junit.Assert.assertFalse;

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

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.http.server.reactive;
+package org.springframework.mock.http.server.reactive.test;
 
 import java.net.URI;
 import java.nio.ByteBuffer;
@@ -28,6 +28,7 @@ import org.springframework.core.io.buffer.DefaultDataBufferFactory;
 import org.springframework.http.HttpCookie;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpMethod;
+import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
 

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

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.http.server.reactive;
+package org.springframework.mock.http.server.reactive.test;
 
 import java.util.function.Supplier;
 
@@ -28,6 +28,7 @@ import org.springframework.core.io.buffer.DefaultDataBufferFactory;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseCookie;
+import org.springframework.http.server.reactive.ServerHttpResponse;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
 

spring-web/src/test/java/org/springframework/web/server/adapter/DefaultServerWebExchangeCheckNotModifiedTests.java

@@ -33,8 +33,8 @@ import org.junit.runners.Parameterized.Parameters;
 
 import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpStatus;
-import org.springframework.http.server.reactive.MockServerHttpRequest;
-import org.springframework.http.server.reactive.MockServerHttpResponse;
+import org.springframework.mock.http.server.reactive.test.MockServerHttpRequest;
+import org.springframework.mock.http.server.reactive.test.MockServerHttpResponse;
 import org.springframework.web.server.session.MockWebSessionManager;
 
 import static org.junit.Assert.assertEquals;

spring-web/src/test/java/org/springframework/web/server/handler/ExceptionHandlingHttpHandlerTests.java

@@ -22,8 +22,8 @@ import reactor.core.publisher.Mono;
 
 import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpStatus;
-import org.springframework.http.server.reactive.MockServerHttpRequest;
-import org.springframework.http.server.reactive.MockServerHttpResponse;
+import org.springframework.mock.http.server.reactive.test.MockServerHttpRequest;
+import org.springframework.mock.http.server.reactive.test.MockServerHttpResponse;
 import org.springframework.web.server.ServerWebExchange;
 import org.springframework.web.server.WebExceptionHandler;
 import org.springframework.web.server.WebHandler;

spring-web/src/test/java/org/springframework/web/server/handler/FilteringWebHandlerTests.java

@@ -25,8 +25,8 @@ import reactor.core.publisher.Mono;
 import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.server.reactive.HttpHandler;
-import org.springframework.http.server.reactive.MockServerHttpRequest;
-import org.springframework.http.server.reactive.MockServerHttpResponse;
+import org.springframework.mock.http.server.reactive.test.MockServerHttpRequest;
+import org.springframework.mock.http.server.reactive.test.MockServerHttpResponse;
 import org.springframework.web.server.ServerWebExchange;
 import org.springframework.web.server.WebExceptionHandler;
 import org.springframework.web.server.WebFilter;

spring-web/src/test/java/org/springframework/web/server/handler/ResponseStatusExceptionHandlerTests.java

@@ -24,8 +24,8 @@ import reactor.core.publisher.Mono;
 
 import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpStatus;
-import org.springframework.http.server.reactive.MockServerHttpRequest;
-import org.springframework.http.server.reactive.MockServerHttpResponse;
+import org.springframework.mock.http.server.reactive.test.MockServerHttpRequest;
+import org.springframework.mock.http.server.reactive.test.MockServerHttpResponse;
 import org.springframework.tests.TestSubscriber;
 import org.springframework.web.server.ResponseStatusException;
 import org.springframework.web.server.ServerWebExchange;

spring-web/src/test/java/org/springframework/web/server/session/DefaultWebSessionManagerTests.java

@@ -27,8 +27,8 @@ import org.junit.Before;
 import org.junit.Test;
 
 import org.springframework.http.HttpMethod;
-import org.springframework.http.server.reactive.MockServerHttpRequest;
-import org.springframework.http.server.reactive.MockServerHttpResponse;
+import org.springframework.mock.http.server.reactive.test.MockServerHttpRequest;
+import org.springframework.mock.http.server.reactive.test.MockServerHttpResponse;
 import org.springframework.web.server.ServerWebExchange;
 import org.springframework.web.server.WebSession;
 import org.springframework.web.server.adapter.DefaultServerWebExchange;