* Uses a TestClassVisitor to detect whether the class in the testClassFile is a test class. <p/> If the class is not a test, this function will go up the inheritance tree to check if a parent
* class is a test class. First the package of the parent class is checked, if it is a java.lang or groovy.lang the class can't be a test class, otherwise the parent class is scanned. <p/> When a
* parent class is a test class all the extending classes are marked as test classes.
*/
protected boolean processTestClass(final File testClassFile, boolean superClass) {
final TestClassVisitor classVisitor = classVisitor(testClassFile);
boolean isTest = classVisitor.isTest();
if (!isTest) {
final String superClassName = classVisitor.getSuperClassName();
final File superClassFile = getSuperTestClassFile(superClassName);
if (superClassFile != null) {
isTest = processSuperClass(superClassFile);