/*
* Copyright 2002-2012 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.servlet.mvc.method.annotation;
import java.lang.reflect.Method;
import org.junit.Before;
import org.junit.Test;
import org.springframework.core.MethodParameter;
import org.springframework.mock.web.test.MockHttpServletRequest;
import org.springframework.ui.ModelMap;
import org.springframework.web.context.request.ServletWebRequest;
import org.springframework.web.method.support.ModelAndViewContainer;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.mvc.support.RedirectAttributesModelMap;
import org.springframework.web.servlet.view.InternalResourceView;
import org.springframework.web.servlet.view.RedirectView;
import static org.junit.Assert.*;
/**
* Test fixture with {@link ViewMethodReturnValueHandler}.
*
* @author Rossen Stoyanchev
*/
public class ViewMethodReturnValueHandlerTests {
private ViewMethodReturnValueHandler handler;
private ModelAndViewContainer mavContainer;
private ServletWebRequest webRequest;
@Before
public void setUp() {
this.handler = new ViewMethodReturnValueHandler();
this.mavContainer = new ModelAndViewContainer();
this.webRequest = new ServletWebRequest(new MockHttpServletRequest());
}
@Test
public void supportsReturnType() throws Exception {
assertTrue(this.handler.supportsReturnType(createReturnValueParam("view")));
}
@Test
public void returnView() throws Exception {
InternalResourceView view = new InternalResourceView("testView");
this.handler.handleReturnValue(view, createReturnValueParam("view"), this.mavContainer, this.webRequest);
assertSame(view, this.mavContainer.getView());
}
@Test
public void returnViewRedirect() throws Exception {
RedirectView redirectView = new RedirectView("testView");
ModelMap redirectModel = new RedirectAttributesModelMap();
this.mavContainer.setRedirectModel(redirectModel);
MethodParameter param = createReturnValueParam("view");
this.handler.handleReturnValue(redirectView, param, this.mavContainer, this.webRequest);
assertSame(redirectView, this.mavContainer.getView());
assertSame("Should have switched to the RedirectModel", redirectModel, this.mavContainer.getModel());
}
private MethodParameter createReturnValueParam(String methodName) throws Exception {
Method method = getClass().getDeclaredMethod(methodName);
return new MethodParameter(method, -1);
}
View view() {
return null;
}
}