def test_unwrap_expression_none(self):
     expr = "test"
     result = ExpressionConverter.unwrap_expression(expr)
     self.assertEqual(result, 'test')
 def test_unwrap_expression_jinja(self):
     expr = "{{ _.test }}"
     result = ExpressionConverter.unwrap_expression(expr)
     self.assertEqual(result, '_.test')
 def test_unwrap_expression_yaql(self):
     expr = "<% $.test %>"
     result = ExpressionConverter.unwrap_expression(expr)
     self.assertEqual(result, '$.test')