#NEWLINE# def test_removal( self ) : #NEWLINE# #INDENT# root = self . _make_species ( ) #NEWLINE# self . assertIsNotNone ( root . remove ( 'reptile' ) ) #NEWLINE# self . assertRaises ( ValueError , root . remove , 'reptile' ) #NEWLINE# self . assertIsNone ( root . find ( 'reptile' ) )