I have been able to prototype an integration of the current JBoss Unit + JBoss MC which makes trivial the parametrization of complex test cases that required services, here is just a simple example:

@Test
@Bootstrap("/mytest/jboss-beans.xml");
public class MyTest
{

 private String dataSourceName;
 private DataSource dataSource;

 public String getDataSourceName()
 {
 return dataSourceName;
 }

 @Parameter
 public void setDataSourceName(String dataSourceName)
 {
 this.dataSourceName = dataSourceName;
 }

 @Inject(bean="DataSource")
 public void setDataSource(DataSource dataSource)
 {
 this.dataSource = dataSource;
 }

 @Test
 public void test()
 {
 // use data source here
 }
}

so we annotate the test case to be a parameterized test case with the dataSourceName parameter and to refer to an MC bean deployment + the injection of one of those beans in the test case.

jboss-beans.xml looks like:

<deployment>

 <bean name="DataSource" class="javax.sql.DataSource">
 <constructor>
 <factory name="some factory">
 <parameter><inject bean="TestCase" property="dataSourceName" state="Instantiated"/></parameter>
 </factory>
 </constructor>
 </bean>

</deployment>

here we define some factory for a data source object we need and we configure it to use the "implicit" TestCase bean, making usage of one of its parameterized properties.