Weird behaviour with streams and falsy objects

stream2-falsy-objects-test.js

var Transform = require('stream').Transform
var assert = require('assert')

var stream = new Transform({objectMode: true})

var read = function(stream, callback) {
      var actual = []
      var data
      function onReadable () {
        while((data = stream.read()) !== null) {
          actual.push(data)
        }
        stream.once('readable', onReadable)
      }
      onReadable()
      stream.once('end', function() {
        callback(null, actual)
      })
      stream.once('error', callback)
    }

stream._transform = function(chunk, encoding, callback) {
  callback(null, chunk)
}

read(stream, function(err, actual) {
  if (err) throw err

  assert.deepEqual([1, 0, ''], actual)
})

stream.write(1)
stream.write(0)
stream.write('')
stream.end()