Docs for: v1.7.2 | v1.7 Last update: March 26 2006

# Forewords This tutorial shows how to write test cases for unit testing EJB methods. The EJB used in this example is a simple Session Bean. This tutorial assumes the reader has already understood how to use Cactus to test Servlet. To test an EJB, you need to prepare a war to contain the cactus setting and test cases, and then prepare a jar of your ejb. You need to match the JNDI name in the ejb jar and the war. This is an EJB 1.1 example but the same principles are valid for EJB 2.0 # EJB Jar ## Step 1: Prepare the Sample EJB The EJB used in this tutorial is a simple Session Bean with a method for converting Yen to Dollar. ### EJB Remote
    package org.apache.cactus.sample.ejb;

    import java.rmi.*;
    import javax.ejb.*;

    public interface Converter extends EJBObject
    {
        public double convertYenToDollar(double theYenAmount) throws RemoteException;
    }
### EJB Home
    package org.apache.cactus.sample.ejb;

    import java.rmi.*;
    import javax.ejb.*;

    public interface ConverterHome extends EJBHome
    {
        public Converter create() throws RemoteException, CreateException;
    }
### EJB Bean
    package org.apache.cactus.sample.ejb;

    import javax.ejb.*;

    public class ConverterEJB implements SessionBean
    {
        private SessionContext context;

        public double convertYenToDollar(double theYenAmount)
        {
            return theYenAmount / 100.0;
        }

        public ConverterEJB()
        {
        }

        public void ejbCreate() throws CreateException
        {
        }

        public void setSessionContext(SessionContext theContext)
        {
            this.context = theContext;
        }

        public void ejbActivate()
        {
        }

        public void ejbPassivate()
        {
        }

        public void ejbRemove()
        {
        }
    }
## Step 2: Prepare EJB Deployment Descriptor (ejb-jar.xml) Prepare the standard EJB Deployment Descriptor for the Session EJB:
    <?xml version="1.0" encoding="UTF-8"?>

    <!DOCTYPE ejb-jar PUBLIC
    '-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 1.1//EN'
    'http://java.sun.com/j2ee/dtds/ejb-jar_1_1.dtd'>

    <ejb-jar>
      <display-name>testejb</display-name>
      <enterprise-beans>
        <session>
          <description>Converter Session Bean</description>
          <display-name>Converter</display-name>
          <ejb-name>Converter</ejb-name>
          <home>org.apache.cactus.sample.ejb.ConverterHome</home>
          <remote>org.apache.cactus.sample.ejb.Converter</remote>
          <ejb-class>org.apache.cactus.sample.ejb.ConverterEJB</ejb-class>
          <session-type>Stateless</session-type>
          <transaction-type>Container</transaction-type>
        </session>
      </enterprise-beans>
      <assembly-descriptor>
        <container-transaction>
          <method>
    	<ejb-name>Converter</ejb-name>
    	<method-intf>Remote</method-intf>
    	<method-name>*</method-name>
          </method>
          <trans-attribute>NotSupported</trans-attribute>
        </container-transaction>
      </assembly-descriptor>
    </ejb-jar>
## Step 3: Prepare EJB Runtime (only valid for J2EE RI)
    <?xml version="1.0" encoding="ISO-8859-1"?>

    <j2ee-ri-specific-information>
      <server-name></server-name>
      <rolemapping />

      <enterprise-beans>
        <ejb>
          <ejb-name>Converter</ejb-name>
          <jndi-name>ejb/Converter</jndi-name>
        </ejb>
      </enterprise-beans>

    </j2ee-ri-specific-information>
# Cactus Web Application ## Step 1: Prepare test code
    package org.apache.cactus.sample.ejb;

    import javax.naming.*;
    import javax.rmi.*;
    import junit.framework.*;

    import org.apache.cactus.*;

    public class ConverterTest extends ServletTestCase
    {
        private Converter converter;

        public ConverterTest(String name)
        {
            super(name);
        }

        public static Test suite()
        {
            return new TestSuite(ConverterTest.class);
        }

        public void setUp()
        {
            Context ctx = new InitialContext();
            ConverterHome home = (ConverterHome)
                PortableRemoteObject.narrow(ctx.lookup("java:comp/ejb/Converter"),
                ConverterHome.class);
            this.converter = home.create();
        }

        public void testConvert() throws Exception
        {
            double dollar = this.converter.convertYenToDollar(100.0);
            assertEquals("dollar", 1.0, dollar, 0.01);
        }
    }
## Step 2: Prepare Web Application Deployment Descriptor (web.xml)
    <?xml version="1.0" encoding="UTF-8"?>

    <!DOCTYPE web-app
        PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
        "http://java.sun.com/j2ee/dtds/web-app_2.2.dtd">

    <web-app>

        <servlet>
            <servlet-name>ServletRedirector</servlet-name>
            <servlet-class>org.apache.cactus.server.ServletTestRedirector</servlet-class>
        </servlet>

        <servlet-mapping>
            <servlet-name>ServletRedirector</servlet-name>
            <url-pattern>/ServletRedirector</url-pattern>
        </servlet-mapping>

    [...]

        <ejb-ref>
            <ejb-ref-name>ejb/Converter</ejb-ref-name>
            <ejb-ref-type>Session</ejb-ref-type>
            <home>org.apache.cactus.sample.ejb.ConverterHome</home>
            <remote>org.apache.cactus.sample.ejb.Converter</remote>
        </ejb-ref>

    </web-app>
## Step 3: Package Web Application Package the web application into a war and then deploy it. Please note that the `ejb-ref-name` in the deployment descriptor need to match with the JNDI name of the test EJB. ## Step 4: (Only valid to J2EE RI 1.2.1): War Runtime
    <j2ee-ri-specific-information>

      <server-name/>
      <rolemapping/>

      <web>
        <display-name>test</display-name>
        <context-root>test</context-root>
        <ejb-ref>
          <ejb-ref-name>ejb/Converter</ejb-ref-name>
          <jndi-name>ejb/Converter</jndi-name>
        </ejb-ref>
      </web>

    </j2ee-ri-specific-information>
## Step 5: Deploy You need to deploy the war and the `ejb-jar.xml` based on the deployment procedure of your servlet container and your ejb container.