disconnect evt / investigate leak

[nha]

investigate why disconnect event behaves differently in tests. See discussion in #1

• use https://github.com/Raynos/leaked-handles ( see The execution never ends tape-testing/tape#216 (comment) )
• could be worth making source maps work? (see Source maps for devel and production with nodemon (solution) babel/example-node-server#10 and https://github.com/evanw/node-source-map-support)

in index.js:

no of handles 5

tcp stream { fd: 10,
  readable: false,
  writable: true,
  address: {},
  serverAddr: null }

tcp stream { fd: 12,
  readable: false,
  writable: true,
  address: {},
  serverAddr: null }

tcp stream { fd: 15,
  readable: true,
  writable: true,
  address: { address: '192.168.1.38', family: 'IPv4', port: 49554 },
  serverAddr: undefined }

unknown handle Timer {
  _list:
   TimersList {
     _idleNext:
      Timeout {
        _called: false,
        _idleTimeout: 60000,
        _idlePrev: [Circular],
        _idleNext: [Circular],
        _idleStart: 226,
        _onTimeout: [Function],
        _timerArgs: undefined,
        _repeat: null,
        _destroyed: false,
        [Symbol(unrefed)]: false,
        [Symbol(asyncId)]: 20,
        [Symbol(triggerId)]: 1 },
     _idlePrev:
      Timeout {
        _called: false,
        _idleTimeout: 60000,
        _idlePrev: [Circular],
        _idleNext: [Circular],
        _idleStart: 226,
        _onTimeout: [Function],
        _timerArgs: undefined,
        _repeat: null,
        _destroyed: false,
        [Symbol(unrefed)]: false,
        [Symbol(asyncId)]: 20,
        [Symbol(triggerId)]: 1 },
     _unrefed: false,
     msecs: 60000,
     _timer: [Circular] } }

unknown handle Timer {
  _list:
   TimersList {
     _idleNext:
      Timeout {
        _called: false,
        _idleTimeout: 20000,
        _idlePrev: [Circular],
        _idleNext: [Circular],
        _idleStart: 20234,
        _onTimeout: [Function],
        _timerArgs: undefined,
        _repeat: null,
        _destroyed: false,
        [Symbol(unrefed)]: false,
        [Symbol(asyncId)]: 48,
        [Symbol(triggerId)]: 47 },
     _idlePrev:
      Timeout {
        _called: false,
        _idleTimeout: 20000,
        _idlePrev: [Circular],
        _idleNext: [Circular],
        _idleStart: 20234,
        _onTimeout: [Function],
        _timerArgs: undefined,
        _repeat: null,
        _destroyed: false,
        [Symbol(unrefed)]: false,
        [Symbol(asyncId)]: 48,
        [Symbol(triggerId)]: 47 },
     _unrefed: false,
     msecs: 20000,
     _timer: [Circular] } }

[nha]

Note: the Websocket close method is called