old_contents: import unittest
  
  import rmgpy.molecule.parser as parser
  from rmgpy.molecule.molecule import Molecule
  
  
  class parserTest(unittest.TestCase):
  
     def test_fromAugmentedInChI(self):
        aug_inchi = 'InChI=1S/CH4/h1H4'
        mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
        self.assertTrue(not mol.InChI == '')
  
        aug_inchi = 'InChI=1/CH4/h1H4'
        mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
        self.assertTrue(not mol.InChI == '')
  
     def test_OptionalMultLayer(self):
        """Test that multiplicity layer be optional in cases where the layer is not needed."""
  
        aug_inchi = 'InChI=1S/CH3/h1H3'
        mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
        self.assertTrue(mol.multiplicity == 2)
  
        aug_inchi = 'InChI=1S/CH3/h1H3/mult2'
        mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
        self.assertTrue(mol.multiplicity == 2)
  
        aug_inchi = 'InChI=1S/CH3/h1H3/mult2/u0'
        mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
        self.assertTrue(mol.multiplicity == 2)
  
        aug_inchi = 'InChI=1S/CH2/h1H2/mult3'
        mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
        self.assertTrue(mol.multiplicity == 3)
  
        aug_inchi = 'InChI=1S/CH2/h1H2/mult1'
        mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
        self.assertTrue(mol.multiplicity == 1)
  
        aug_inchi = 'InChI=1S/CH2/h1H2/mult3/u0'
        mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
        self.assertTrue(mol.multiplicity == 3)
  
        aug_inchi = 'InChI=1S/CH2/h1H2/mult1/u0'
        mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
        self.assertTrue(mol.multiplicity == 1)
  
new_contents: import unittest
  
  import rmgpy.molecule.parser as parser
  from rmgpy.molecule.molecule import Molecule
  
  
  class parserTest(unittest.TestCase):
  
      def test_fromAugmentedInChI(self):
          aug_inchi = 'InChI=1S/CH4/h1H4'
          mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
          self.assertTrue(not mol.InChI == '')
  
          aug_inchi = 'InChI=1/CH4/h1H4'
          mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
          self.assertTrue(not mol.InChI == '')
   
      def test_OptionalMultLayer(self):
          """
          Test that multiplicity layer be optional in cases where the layer is not needed.
          """
  
          aug_inchi = 'InChI=1S/CH3/h1H3'
          mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
          self.assertTrue(mol.multiplicity == 2)
          
          aug_inchi = 'InChI=1S/CH3/h1H3/mult2'
          mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
          self.assertTrue(mol.multiplicity == 2)
          
          aug_inchi = 'InChI=1S/CH3/h1H3/mult2/u0'
          mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
          self.assertTrue(mol.multiplicity == 2)
          
          aug_inchi = 'InChI=1S/CH2/h1H2/mult3'
          mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
          self.assertTrue(mol.multiplicity == 3)
          
          aug_inchi = 'InChI=1S/CH2/h1H2/mult1'
          mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
          self.assertTrue(mol.multiplicity == 1)
          
          aug_inchi = 'InChI=1S/CH2/h1H2/mult3/u0'
          mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
          self.assertTrue(mol.multiplicity == 3)
          
          aug_inchi = 'InChI=1S/CH2/h1H2/mult1/u0'
          mol = parser.fromAugmentedInChI(Molecule(), aug_inchi)
          self.assertTrue(mol.multiplicity == 1)
  
subject: Fix indentation in parserTest.py. Use 4 spaces instead of 3 for tabs