How to write testcase for spring security defined by annotations

Creating testcases in spring is very simple. Sometimes it is so simple that, it is never documneted thinking that everybody would just get it. I tried to search for a solution/tutorial/example to create a good testcase for the spring security annotations, and couldnot find any. After reading some the spring security forum, I came to conclusion that I need to document this.

The Big Question: How do you know that a method is called with the right security permissions?

Step 1: Create your test context.

Create a  test-context.xml with the following application context.

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:sec="http://www.springframework.org/schema/security"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-2.5.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
        http://www.springframework.org/schema/security
        http://www.springframework.org/schema/security/spring-security-2.0.xsd">

    <context:annotation-config/>

    <!--Services-->
    <context:component-scan base-package="com.company.name.service" />

    <!--Set method level security, very important to set secured-annotations="enabled"-->
    <global-method-security secured-annotations="enabled" access-decision-manager-ref="accessDecisionManager"/>

    <bean id="accessDecisionManager" class="org.springframework.security.vote.AffirmativeBased">
<property name="allowIfAllAbstainDecisions" value="false"/>
<property name="decisionVoters">
	<list>
                <bean class="org.springframework.security.vote.RoleVoter"/>
            </list>
        </property>
    </bean>
</beans>

Step 2: Create your service with the security annotations

public interface MyService
{
    @Secured({"ROLE_USER"})
    public Object securedServiceCall();
}

Step 3: Create your testcase to load the test-context.xml, and test the service.

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:test-context.xml"})
public class ServiceSecurityAccessTestCase
{
    @Autowired
    private MyService myService;

    @Test
    public void testSimServiceSecured() throws Exception
    {
        GrantedAuthority[] authorities = {new GrantedAuthorityImpl("ROLE_ANONYMOUS")};
        SecurityContextHolder.getContext().setAuthentication(new AnonymousAuthenticationToken("key", "Any Object", authorities));
        try
        {
            myService.securedServiceCall();
            Assert.fail("The service access should not be granted.");
        } catch (AccessDeniedException e)
        {
            //Your Assertions
        }

    }
}

Vola!. You have your test case for the annotaion based security system.