Struts2.0中关于StrutsTestCase 的问题 是否是bug?

   Struts2.0中有个单元测试的基础类StrutsTestCase 当系统中加入 struts2-spring-plugin-2.0.11.jar的包后, 所有StrutsTestCase 的子类就执行不正常.

例如: Struts2.0中的blank例子 中的 ConfigTest类 代码如下:

package example;

import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.config.RuntimeConfiguration;
import com.opensymphony.xwork2.config.entities.ActionConfig;
import com.opensymphony.xwork2.config.entities.ResultConfig;
import com.opensymphony.xwork2.config.providers.XmlConfigurationProvider;

import java.util.Map;
import java.util.List;

import org.apache.struts2.StrutsTestCase;

public class ConfigTest extends StrutsTestCase {

    protected void setUp() throws Exception {
        super.setUp();
        XmlConfigurationProvider c = new XmlConfigurationProvider("struts.xml");
        configurationManager.addConfigurationProvider(c);
        configurationManager.reload();
    }
	
    protected void assertSuccess(String result) throws Exception {
        assertTrue("Expected a success result!",
                ActionSupport.SUCCESS.equals(result));
    }

    protected void assertInput(String result) throws Exception {
        assertTrue("Expected an input result!",
                ActionSupport.INPUT.equals(result));
    }

    protected Map assertFieldErrors(ActionSupport action) throws Exception {
        assertTrue(action.hasFieldErrors());
        return action.getFieldErrors();
    }

    protected void assertFieldError(Map field_errors, String field_name, String error_message) {

        List errors = (List) field_errors.get(field_name);
        assertNotNull("Expected errors for " + field_name, errors);
        assertTrue("Expected errors for " + field_name, errors.size()>0);
        // TODO: Should be a loop
        assertEquals(error_message,errors.get(0));

    }



    protected ActionConfig assertClass(String namespace, String action_name, String class_name) {
        RuntimeConfiguration configuration = configurationManager.getConfiguration().getRuntimeConfiguration();
        ActionConfig config = configuration.getActionConfig(namespace, action_name);
        assertNotNull("Mssing action", config);
        assertTrue("Wrong class name: [" + config.getClassName() + "]",
                class_name.equals(config.getClassName()));
        return config;
    }

    protected ActionConfig assertClass(String action_name, String class_name) {
        return assertClass("", action_name, class_name);
    }

    protected void assertResult(ActionConfig config, String result_name, String result_value) {
        Map results = config.getResults();
        ResultConfig result = (ResultConfig) results.get(result_name);
        Map params = result.getParams();
        String value = (String) params.get("actionName");
        if (value == null)
            value = (String) params.get("location");
        assertTrue("Wrong result value: [" + value + "]",
                result_value.equals(value));
    }

    public void testConfig() throws Exception {
        assertNotNull(configurationManager);
    }
}

当系统中包含struts2-spring-plugin-2.0.11.jar 后报

严重: ********** FATAL ERROR STARTING UP STRUTS-SPRING INTEGRATION **********
Looks like the Spring listener was not configured for your web app! 
Nothing will work until WebApplicationContextUtils returns a valid ApplicationContext.
You might need to add the following to web.xml: 
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

尝试着修复这个问题 没能成功; 

这是个bug么?  怎么做才能正常?   有人遇到和我一样的问题么?

Strut2.0 + Spring + hibernate   用那种测试方法测试比较好?