old_contents: from bamboo.core.parser import ParseError, Parser
  from bamboo.tests.test_base import TestBase
  
  
  class TestParser(TestBase):
  
      def setUp(self):
          self.parser = Parser()
          self.row = {'VAR': 1}
          TestBase.setUp(self)
  
      def _check_func(self, parse_result):
          functions = parse_result
          for func in functions:
              self.assertEqual(func.func.func_name, 'eval')
          return functions[0]
  
      def test_parse_formula(self):
          func = self._check_func(
              self.parser.parse_formula('VAR'))
          self.assertEqual(func(self.row, self.parser.context), 1)
  
      def test_bnf(self):
          result = self.parser._build_bnf()
          self.assertNotEqual(self.parser.bnf, None)
  
      def test_parse_formula_with_var(self):
          func = self._check_func(
              self.parser.parse_formula('VAR + 1'))
          self.assertEqual(func(self.row, self.parser.context), 2)
  
      def test_parse_formula_bad_formula(self):
          bad_formulas = [
              '=BAD +++ FOR',
              '2 +>+ 1',
              '1 ** 2',
          ]
  
          for bad_formula in bad_formulas:
              self.assertRaises(ParseError, self.parser.parse_formula,
                                bad_formula)
  
new_contents: from bamboo.core.parser import ParseError, Parser
  from bamboo.tests.test_base import TestBase
  
  
  class TestParser(TestBase):
  
      def setUp(self):
          self.parser = Parser()
          self.row = {'VAR': 1}
          TestBase.setUp(self)
  
      def _check_func(self, parse_result):
          functions = parse_result
          for func in functions:
              self.assertEqual(func.func.func_name, 'eval')
          return functions[0]
  
      def test_parse_formula(self):
          func = self._check_func(
              self.parser.parse_formula('VAR'))
          self.assertEqual(func(self.row, self.parser.context), 1)
  
      def test_bnf(self):
          result = self.parser._Parser__build_bnf()
          self.assertNotEqual(self.parser.bnf, None)
  
      def test_parse_formula_with_var(self):
          func = self._check_func(
              self.parser.parse_formula('VAR + 1'))
          self.assertEqual(func(self.row, self.parser.context), 2)
  
      def test_parse_formula_bad_formula(self):
          bad_formulas = [
              '=BAD +++ FOR',
              '2 +>+ 1',
              '1 ** 2',
          ]
  
          for bad_formula in bad_formulas:
              self.assertRaises(ParseError, self.parser.parse_formula,
                                bad_formula)
  
subject: fix private test call