new_contents: import unittest
  
  from alphatwirl.heppyresult import TblBranch
  
  ##__________________________________________________________________||
  class TestTblBranch(unittest.TestCase):
  
      def setUp(self):
          self.obj = TblBranch(
              analyzerName = 'roctree',
              fileName = 'tree.root',
              treeName = 'tree',
              outPath = 'tbl_out',
              addType = True,
              addSize = False,
              addTitle = False,
              sortBySize = False
          )
  
      def test_read(self):
          self.obj.begin()
  
  ##__________________________________________________________________||
  
subject: add a new file test_TblBranch.py