it('Should consider the field valid (subfield with non-ASCII code), characters: false', () => {
          const field = {'tag': 'CAT', 'ind1': ' ', 'ind2': ' ', 'subfields': [{'code': 'Ä', 'value': 'foo'}, {'code': 'c', 'value': '20150121'}]};
          // eslint-disable-next-line no-unused-expressions
          expect(Utils.validateField(field, {characters: false})).not.to.throw;
        });