code: def test_getApprovalVsTotal(self):
      idxTotalApproved = self.imageDataExtractor.getApprovalVsTotal()
      self.assertEqual("1/3", idxTotalApproved)
  
imports: import sys
  import unittest
  from typing import Dict, List
  from MONAILabelReviewerLib.ImageData import ImageData
  from MONAILabelReviewerLib.ImageDataExtractor import ImageDataExtractor
  from MONAILabelReviewerLib.MONAILabelReviewerEnum import Level, SegStatus
label_desc: Use image node_id 14 for calling the ImageDataExtractorTest obj's underlying member method code with example usage: obj.test_getApprovalVsTotal() without return types