json.js

'use strict';
exports = module.exports = stringify
exports.getSerialize = serializer
function stringify(obj, replacer, spaces, cycleReplacer) {
  return JSON.stringify(obj, serializer(replacer, cycleReplacer), spaces)
}
function serializer(replacer, cycleReplacer) {
  var stack = [], keys = []
  if (cycleReplacer == null) cycleReplacer = function(key, value) {
    if (stack[0] === value) return "[Circular ~]"
    return "[Circular ~." + keys.slice(0, stack.indexOf(value)).join(".") + "]"
  }
  return function(key, value) {
    if (stack.length > 0) {
      var thisPos = stack.indexOf(this)
      ~thisPos ? stack.splice(thisPos + 1) : stack.push(this)
      ~thisPos ? keys.splice(thisPos, Infinity, key) : keys.push(key)
      if (~stack.indexOf(value)) value = cycleReplacer.call(this, key, value)
    }
    else stack.push(value)
    return replacer == null ? value : replacer.call(this, key, value)
  }
}
module.exports = {
    reporter: function (result) {
        result.forEach(function (r) {
            delete r.error['evidence']
        })
        console.log(stringify({
            result: result
        }));
    }
};