if (baseClass == null) {
      return declaredRequirements;
    } else {
      TesterRequirements clonedBaseRequirements =
          new TesterRequirements(getTesterRequirements(baseClass));
      return incorporateRequirements(clonedBaseRequirements, declaredRequirements, testerClass);
    }
  }

  /**
   * Construct the full set of requirements for a tester method.
   *