org.apache.struts2.junit.StrutsJUnit4TestCase Maven / Gradle / Ivy
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package org.apache.struts2.junit;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionProxy;
import com.opensymphony.xwork2.ActionProxyFactory;
import com.opensymphony.xwork2.config.Configuration;
import com.opensymphony.xwork2.interceptor.ValidationAware;
import com.opensymphony.xwork2.interceptor.annotations.After;
import com.opensymphony.xwork2.interceptor.annotations.Before;
import org.apache.commons.lang3.StringUtils;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.dispatcher.Dispatcher;
import org.apache.struts2.dispatcher.HttpParameters;
import org.apache.struts2.dispatcher.mapper.ActionMapper;
import org.apache.struts2.dispatcher.mapper.ActionMapping;
import org.apache.struts2.util.StrutsTestCaseHelper;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.mock.web.MockHttpSession;
import org.springframework.mock.web.MockPageContext;
import org.springframework.mock.web.MockServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.UnsupportedEncodingException;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import static org.junit.Assert.assertNotNull;
public abstract class StrutsJUnit4TestCase extends XWorkJUnit4TestCase {
protected MockHttpServletResponse response;
protected MockHttpServletRequest request;
protected MockPageContext pageContext;
protected MockServletContext servletContext;
protected Map dispatcherInitParams;
protected Dispatcher dispatcher;
protected DefaultResourceLoader resourceLoader = new DefaultResourceLoader();
/**
* gets an object from the stack after an action is executed
*/
protected Object findValueAfterExecute(String key) {
return ServletActionContext.getValueStack(request).findValue(key);
}
/**
* gets an object from the stack after an action is executed
*
* @return The executed action
*/
@SuppressWarnings("unchecked")
protected T getAction() {
return (T) findValueAfterExecute("action");
}
protected boolean containsErrors() {
T action = this.getAction();
if (action instanceof ValidationAware) {
return ((ValidationAware) action).hasActionErrors();
}
throw new UnsupportedOperationException("Current action does not implement ValidationAware interface");
}
/**
* Executes an action and returns it's output (not the result returned from
* execute()), but the actual output that would be written to the response.
* For this to work the configured result for the action needs to be
* FreeMarker, or Velocity (JSPs can be used with the Embedded JSP plugin)
*/
protected String executeAction(String uri) throws ServletException, UnsupportedEncodingException {
request.setRequestURI(uri);
ActionMapping mapping = getActionMapping(request);
assertNotNull(mapping);
Dispatcher.getInstance().serviceAction(request, response, mapping);
if (response.getStatus() != HttpServletResponse.SC_OK)
throw new ServletException("Error code [" + response.getStatus() + "], Error: ["
+ response.getErrorMessage() + "]");
return response.getContentAsString();
}
/**
* Creates an action proxy for a request, and sets parameters of the ActionInvocation to the passed
* parameters. Make sure to set the request parameters in the protected "request" object before calling this method.
*/
protected ActionProxy getActionProxy(String uri) {
request.setRequestURI(uri);
ActionMapping mapping = getActionMapping(request);
String namespace = mapping.getNamespace();
String name = mapping.getName();
String method = mapping.getMethod();
Configuration config = configurationManager.getConfiguration();
ActionProxy proxy = config.getContainer().getInstance(ActionProxyFactory.class).createActionProxy(
namespace, name, method, new HashMap(), true, false);
initActionContext(proxy.getInvocation().getInvocationContext());
// this is normally done in onSetUp(), but we are using Struts internal
// objects (proxy and action invocation)
// so we have to hack around so it works
ServletActionContext.setServletContext(servletContext);
ServletActionContext.setRequest(request);
ServletActionContext.setResponse(response);
ServletActionContext.getContext().put(ServletActionContext.ACTION_MAPPING, mapping);
return proxy;
}
protected void initActionContext(ActionContext actionContext) {
actionContext.withParameters(HttpParameters.create(request.getParameterMap()).build());
initSession(actionContext);
// set the action context to the one used by the proxy
ActionContext.bind(actionContext);
}
protected void initSession(ActionContext actionContext) {
if (actionContext.getSession() == null) {
actionContext.withSession(new HashMap<>());
request.setSession(new MockHttpSession(servletContext));
}
}
/**
* Finds an ActionMapping for a given request
*/
protected ActionMapping getActionMapping(HttpServletRequest request) {
return container.getInstance(ActionMapper.class).getMapping(request, configurationManager);
}
/**
* Finds an ActionMapping for a given url
*/
protected ActionMapping getActionMapping(String url) {
MockHttpServletRequest req = new MockHttpServletRequest();
req.setRequestURI(url);
return getActionMapping(req);
}
/**
* Injects dependencies on an Object using Struts internal IoC container
*/
protected void injectStrutsDependencies(Object object) {
container.inject(object);
}
protected void setupBeforeInitDispatcher() throws Exception {
}
protected void initServletMockObjects() {
servletContext = new MockServletContext(resourceLoader);
response = new MockHttpServletResponse();
request = new MockHttpServletRequest();
pageContext = new MockPageContext(servletContext, request, response);
}
public void finishExecution() {
HttpSession session = this.request.getSession();
Enumeration attributeNames = session.getAttributeNames();
MockHttpServletRequest nextRequest = new MockHttpServletRequest();
while (attributeNames.hasMoreElements()) {
String key = (String) attributeNames.nextElement();
Object attribute = session.getAttribute(key);
nextRequest.getSession().setAttribute(key, attribute);
}
this.response = new MockHttpServletResponse();
this.request = nextRequest;
this.pageContext = new MockPageContext(servletContext, request, response);
}
/**
* Sets up the configuration settings, XWork configuration, and
* message resources
*/
@Override
@Before
public void setUp() throws Exception {
initServletMockObjects();
setupBeforeInitDispatcher();
initDispatcherParams();
initDispatcher(dispatcherInitParams);
}
protected void initDispatcherParams() {
if (StringUtils.isNotBlank(getConfigPath())) {
dispatcherInitParams = new HashMap<>();
dispatcherInitParams.put("config", "struts-default.xml," + getConfigPath());
}
}
protected Dispatcher initDispatcher(Map params) {
dispatcher = StrutsTestCaseHelper.initDispatcher(servletContext, params);
configurationManager = dispatcher.getConfigurationManager();
configuration = configurationManager.getConfiguration();
container = configuration.getContainer();
container.inject(dispatcher);
return dispatcher;
}
/**
* Override this method to return a comma separated list of paths to a configuration
* file.
* The default implementation simply returns null.
*
* @return a comma separated list of config locations
*/
protected String getConfigPath() {
return null;
}
@Override
@After
public void tearDown() throws Exception {
StrutsTestCaseHelper.tearDown(dispatcher);
}
}