容器的测试

这几天在研究测试的内容。平时比较关注的内容异常测试，容器内测试
总结一下：主要是根据junit in action这本书
原来理解得太肤浅，简单记录一下
针对srvlet，jsp，ejb可以使用cactus这个框架

以上是测试srvlet的一个简单例子
package com.srvlettest;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;

public class SampleServlet extends HttpServlet
{
    public void saveToSession(HttpServletRequest request)
    {
        String testparam = request.getParameter("testparam");
        request.getSession().setAttribute("testAttribute", testparam);
    }
}

package com.srvlettest;

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)
    {
        webRequest.addParameter("testparam", "it works!");
    }

    public void testSaveToSessionOK()
    {
        SampleServlet servlet = new SampleServlet();
        servlet.saveToSession(request);
        assertEquals("it works!", session.getAttribute("testAttribute"));
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

<servlet>
  <servlet-name>ServletRedirector</servlet-name>
  <servlet-class>org.apache.cactus.server.ServletTestRedirector</servlet-class>
  <init-param>
    <param-name>param1</param-name>
    <param-value>value1 used for testing</param-value>
  </init-param>
</servlet>

<servlet>
  <servlet-name>ServletTestRunner</servlet-name>
  <servlet-class>org.apache.cactus.server.runner.ServletTestRunner</servlet-class>
</servlet>
  <servlet>
    <description>This is the description of my J2EE component</description>
    <display-name>This is the display name of my J2EE component</display-name>
    <servlet-name>SampleServlet</servlet-name>
    <servlet-class>com.srvlettest.SampleServlet</servlet-class>
  </servlet>


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

<servlet-mapping>
    <servlet-name>ServletTestRunner</servlet-name>
    <url-pattern>/ServletTestRunner</url-pattern>
</servlet-mapping>
  <servlet-mapping>
    <servlet-name>SampleServlet</servlet-name>
    <url-pattern>/SampleServlet</url-pattern>
  </servlet-mapping>

  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

异常测试平时觉得理解得不够深入
junit有个很好的测试功能，可以使用@Test ( expected = RuntimeException.class )这样的注解进行异常测试

测试除数为0的异常
  @Test(expected = ArithmeticException.class)
   public void testPrintMessage() {
      System.out.println("Inside testPrintMessage()");    
      messageUtil.printMessage();    
   }

   @Test
   public void testSalutationMessage() {
      System.out.println("Inside testSalutationMessage()");
      message = "Hi!" + "Robert";
      assertEquals(message,messageUtil.salutationMessage());
   }