Add RelativeRedirectFilter

spring-web/src/test/java/org/springframework/web/filter/RelativeRedirectFilterTests.java

@@ -0,0 +1,84 @@
+/*
+ * 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.web.filter;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.InOrder;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.MockitoJUnitRunner;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.mock.web.test.MockFilterChain;
+import org.springframework.mock.web.test.MockHttpServletRequest;
+
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ * @author Rob Winch
+ * @since 4.3.10
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class RelativeRedirectFilterTests {
+	@Mock
+	HttpServletResponse response;
+
+	RelativeRedirectFilter filter = new RelativeRedirectFilter();
+
+	@Test(expected = IllegalArgumentException.class)
+	public void sendRedirectHttpStatusWhenNullThenIllegalArgumentException() {
+		this.filter.setSendRedirectHttpStatus(null);
+	}
+
+	@Test(expected = IllegalArgumentException.class)
+	public void sendRedirectHttpStatusWhenNot3xxThenIllegalArgumentException() {
+		this.filter.setSendRedirectHttpStatus(HttpStatus.OK);
+	}
+
+	@Test
+	public void doFilterSendRedirectWhenDefaultsThenLocationAnd302() throws Exception {
+		String location = "/foo";
+
+		sendRedirect(location);
+
+		InOrder inOrder = Mockito.inOrder(this.response);
+		inOrder.verify(this.response).setHeader(HttpHeaders.LOCATION, location);
+		inOrder.verify(this.response).setStatus(HttpStatus.FOUND.value());
+	}
+
+	@Test
+	public void doFilterSendRedirectWhenCustomSendRedirectHttpStatusThenLocationAnd301() throws Exception {
+		String location = "/foo";
+		HttpStatus status = HttpStatus.MOVED_PERMANENTLY;
+		this.filter.setSendRedirectHttpStatus(status);
+		sendRedirect(location);
+
+		InOrder inOrder = Mockito.inOrder(this.response);
+		inOrder.verify(this.response).setHeader(HttpHeaders.LOCATION, location);
+		inOrder.verify(this.response).setStatus(status.value());
+	}
+
+	private void sendRedirect(String location) throws Exception {
+		MockFilterChain chain = new MockFilterChain();
+
+		filter.doFilterInternal(new MockHttpServletRequest(), response, chain);
+
+		HttpServletResponse wrappedResponse = (HttpServletResponse) chain.getResponse();
+		wrappedResponse.sendRedirect(location);
+	}
+}