support class-filter per test

@Retention(RUNTIME)
@Target(TYPE)
public @interface Labeled {
    Class<? extends TestControl.Label> value();
}

public abstract class AbstractLabeledAlternativeFilter implements ClassFilter {
    private final Class<? extends TestControl.Label> activeLabel;

    protected AbstractLabeledAlternativeFilter(Class<? extends TestControl.Label> activeLabel) {
        this.activeLabel = activeLabel;
    }

    @Override
    public boolean isFiltered(Class<?> targetClass) {
        if (!targetClass.isAnnotationPresent(Alternative.class)) {
            return false;
        }

        Labeled labeled = targetClass.getAnnotation(Labeled.class);

        if (labeled == null) {
            return false;
        }

        if (labeled.value().equals(activeLabel)) {
            return false;
        }
        return true;
    }
}

@Labeled(Label1Test.Label1.class)
@Alternative
@Priority(1)
public class MyLabeledAlternativeBean1 extends MyBean { /*...*/ }

@RunWith(CdiTestRunner.class)
@TestControl(activeAlternativeLabel = Label1Test.Label1.class, classFilter = Label1Test.Label1Filter.class)
public class Label1Test {
    @Inject
    private MyBean myBean;

    //tests

    public static class Label1 implements TestControl.Label {
    }

    public static class Label1Filter extends AbstractLabeledAlternativeFilter {
        public Label1Filter() {
            super(Label1.class);
        }
    }
}