var mkdirp = require('../');
  var path = require('path');
  var fs = require('fs');
  var test = require('tap').test;
  
  test('return value', function (t) {
      t.plan(4);
      var x = Math.floor(Math.random() * Math.pow(16,4)).toString(16);
      var y = Math.floor(Math.random() * Math.pow(16,4)).toString(16);
      var z = Math.floor(Math.random() * Math.pow(16,4)).toString(16);
  
      var file = '/tmp/' + [x,y,z].join('/');
  
      // should return the first dir created.
      // By this point, it would be profoundly surprising if /tmp didn't
      // already exist, since every other test makes things in there.
      mkdirp(file, function (err, made) {
          t.ifError(err);
          t.equal(made, '/tmp/' + x);
          mkdirp(file, function (err, made) {
            t.ifError(err);
            t.equal(made, null);
          });
      });
  });