Salesforce APEX Stacktrace test if code is below given class.method

StackTrace_Test.java

@isTest
private class StackTrace_Test {

  public class MyException extends Exception {}

  static testMethod void test() {
    Test.StartTest();
    someMethod();
    Test.StopTest();
  }

  static void someMethod() {
    System.debug('someMethod');
    anotherMethod();
  }

  static void anotherMethod() {
    System.debug('anotherMethod');
    finalMethod();
  }

  static void finalMethod() {
    System.debug('finalMethod');
    System.debug(isClassMethod('Foo', 'bar'));
    System.debug(isClassMethod('StackTrace_Test', 'bar'));
    System.debug(isClassMethod('StackTrace_Test', 'test'));
    System.debug(isClassMethod('StackTrace_Test', 'someMethod'));
    System.debug(isClassMethod('StackTrace_Test', 'anotherMethod'));
    System.debug(isClassMethod('StackTrace_Test', 'finalMethod'));
    new FatCatClass().fatCatMethod();
  }

  // isClassMethod will return true if we are somewhere under the given
  // className and methodName in the stack trace.
  static boolean isClassMethod(String className, String methodName) {
    // Must be DmlException. MyException won't work.
    String[] lines = new DmlException().getStackTraceString().split('\\n');
    for (String l : lines) {
      // System.debug('Stack line: ' + l);
      if (l.contains('.' + className + '.' + methodName)) {
        return true;
      }
    }
    return false;
  }

  public class FatCatClass {
    void fatCatMethod() {
      System.debug(isClassMethod('FatCatClass', 'fatCatMethod'));
      System.debug(isClassMethod('StackTrace_Test', 'anotherMethod'));
    }
  }
}