Adding testClass abstraction

[thomas.diesler]

Related to https://jira.jboss.org/browse/ARQ-193

I propose adding a TestClass abstraction like this

/**
 * Wraps a class to be run, providing method validation and annotation searching.
 * 
 * @author [e-mail]
 * @version $Revision: $
 */
public class TestClass
{
   private Class<?> testClass;

   public TestClass(Class<?> testClass)
   {
      if (testClass == null)
         throw new IllegalArgumentException("Null testClass");


      this.testClass = testClass;
   }

   public Class<?> getJavaClass()
   {
      return testClass;
   }

   public String getName()
   {
      return testClass.getName();
   }

   public boolean isAnnotationPresent(Class<? extends Annotation> annotation)
   {
      return testClass.isAnnotationPresent(annotation);
   }
   
   public <A extends Annotation> A getAnnotation(Class<A> annotation)
   {
      return testClass.getAnnotation(annotation);
   }
   
   public Method findDeploymentMethod() 
   {
      Method[] methods = testClass.getMethods();
      for(Method method: methods)
      {
         if(method.isAnnotationPresent(Deployment.class)) 
         {
            return method;
         }
      }
      return null;
   }
}

This allows the test class to be attached to the context and generally provides better encapsulation of the test class notion.

The commit is on the arq193 branch

http://github.com/jbosgi/arquillian/commit/d41efbafe5c11e44c738b46c59798b49f1cce59a