Cactus is a simple test framework for unit testing server-side
Java code (
Servlets,
EJBs,
Tag libs, ...) from the
Jakarta Project. The intent of Cactus is to lower the cost of writing tests for server-side code. It uses
JUnit and extends it. Cactus implements an in-container strategy, meaning that tests are executed inside the container.
The Steps to Configure Cactus are below,
1) the library files it sets up are
junit-3.8.1.jar,
aspectjrt-1.1.1.jar, cactus-1.6.1.jar,
commons-httpclient-2.0.jar, and
commons-logging-1.0.3.jar.
As for the
web.xml file, it will use the following configuration:
<servlet>
<servlet-name>ServletTestRunner</servlet-name>
<servlet-class>
org.apache.cactus.server.runner.ServletTestRunner
</servlet-class>
</servlet>
<servlet>
<servlet-name>ServletRedirector</servlet-name>
<servlet-class>
org.apache.cactus.server.ServletTestRedirector
</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ServletTestRunner</servlet-name>
<url-pattern>/ServletTestRunner</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ServletRedirector</servlet-name>
<url-pattern>/ServletRedirector</url-pattern>
</servlet-mapping>
2) Take following java classes in default or any other pkg.
this is our Test Class
TestSampleServlet.java
--------------------------
import junit.framework.Test;
import junit.framework.TestSuite;
import org.apache.cactus.ServletTestCase;
import org.apache.cactus.WebRequest;
public class TestSampleServlet extends ServletTestCase
{
public TestSampleServlet(String theName)
{
super(theName);
}
public static Test suite()
{
return new TestSuite(TestSampleServlet.class);
}
public void beginSaveToSessionOK(WebRequest webRequest)
{
//here we set i/p parameters for testing method
webRequest.addParameter("ipparam", "90");
}
public void testSaveToSessionOK()
{
SampleServlet servlet = new SampleServlet();
servlet.saveToSession(request);
assertEquals(90, session.getAttribute("testAttribute"));
}
}
Clearly observe methods,
public void testXXX()
public static Test suite()
public void endXXX(WebResponse theResponse)
(Note : Once see Methods,here http://jakarta.apache.org/cactus/writing/howto_testcase.html )
SampleServlet
------------------
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
public class SampleServlet extends HttpServlet
{
public void saveToSession(HttpServletRequest request)
{
//here we get all the i/p parameters that we set in beginxxxx(-) in above class
String testparam = request.getParameter("ipparam");
//Businessservice to test
PatientVitalsBusinessService patbservice = new PatientVitalsBusinessService();
PatientVitals pat=null;
try{
System.out.println("in ----- try block ----:::::");
//here findByID() Business Method to test.
pat = patbservice.findByID(Integer.parseInt(request.getParameter("ipparam")));
System.out.println("patttttttttttttttttt id:::::"+pat.getPavId()+"-"+pat.getPavCreatedbyTxt()+"-"+pat.getPavTmpType()+"-"+pat.getPavWtUnit());
request.getSession().setAttribute("testAttribute", pat.getPavId());
}catch(Exception e){
e.printStackTrace();
}
}
}
3)Test the Application.
write this url in browser,
http://localhost:8080/(your WebApplicationName)CactusJakartaExample/ServletTestRunner?suite=TestSampleServlet
Here the steps are,
* our web application call ServletTestRunner class which is configured in web.xml
*this automatically calls TestSampleServlet class
* Here beginxxxx() executed and calls testxxxxx()
* so finally our Business method calls and output come as XML format.
