SPR-5267: Support for PUT and DELETE in spring:form tag

org.springframework.web/src/test/java/org/springframework/web/filter/HiddenHttpMethodFilterTest.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright ${YEAR} 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.web.filter;
+
+import java.io.IOException;
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.http.HttpServletRequest;
+
+import static org.junit.Assert.assertEquals;
+import org.junit.Before;
+import org.junit.Test;
+
+import org.springframework.mock.web.MockHttpServletRequest;
+import org.springframework.mock.web.MockHttpServletResponse;
+
+/** @author Arjen Poutsma */
+public class HiddenHttpMethodFilterTest {
+
+	private HiddenHttpMethodFilter filter;
+
+	@Before
+	public void createFilter() {
+		filter = new HiddenHttpMethodFilter();
+	}
+
+	@Test
+	public void filterWithParameter() throws IOException, ServletException {
+		MockHttpServletRequest request = new MockHttpServletRequest("POST", "/hotels");
+		request.addParameter("_method", "delete");
+		MockHttpServletResponse response = new MockHttpServletResponse();
+
+		FilterChain filterChain = new FilterChain() {
+
+			public void doFilter(ServletRequest filterRequest, ServletResponse filterResponse)
+					throws IOException, ServletException {
+				assertEquals("Invalid method", "DELETE", ((HttpServletRequest) filterRequest).getMethod());
+			}
+		};
+		filter.doFilter(request, response, filterChain);
+	}
+
+	@Test
+	public void filterWithNoParameter() throws IOException, ServletException {
+		MockHttpServletRequest request = new MockHttpServletRequest("POST", "/hotels");
+		MockHttpServletResponse response = new MockHttpServletResponse();
+
+		FilterChain filterChain = new FilterChain() {
+
+			public void doFilter(ServletRequest filterRequest, ServletResponse filterResponse)
+					throws IOException, ServletException {
+				assertEquals("Invalid method", "POST", ((HttpServletRequest) filterRequest).getMethod());
+			}
+		};
+		filter.doFilter(request, response, filterChain);
+	}
+}