text: const tap = require('tap')
  const ison = require(process.env.PARSER_FILE || '../../parser.js')
  
  tap.test('RegExp', function (childTest) {
    let input = /ison|json/gi
  
    let output = ison.parse(ison.stringify(input))
  
    childTest.strictSame(input, output, 'stringify-parse loop recreates regex')
    childTest.end()
  })