chore: release version v0.11.0

* chore: update gitignore

* chore: update CI configs

* chore: update deps

* chore: small refactor

.gitignore

@@ -1,7 +1,14 @@
+**/node_modules/
+**/*.log
+test/repo-tests*
+**/bundle.js
+
 # Logs
 logs
 *.log
 
+coverage
+
 # Runtime data
 pids
 *.pid
@@ -19,12 +26,17 @@ coverage
 # node-waf configuration
 .lock-wscript
 
-# Compiled binary addons (http://nodejs.org/api/addons.html)
+build
-build/Release
 
 # Dependency directory
 # https://www.npmjs.org/doc/misc/npm-faq.html#should-i-check-my-node_modules-folder-into-git
 node_modules
 
 lib
-dist
+dist
+test/test-data/go-ipfs-repo/LOCK
+test/test-data/go-ipfs-repo/LOG
+test/test-data/go-ipfs-repo/LOG.old
+
+# while testing npm5
+package-lock.json

.travis.yml

@@ -1,21 +1,20 @@
 sudo: false
 language: node_js
-node_js:
-  - 4
-  - 5
-  - stable
 
-# Make sure we have new NPM.
+matrix:
-before_install:
+  include:
-  - npm install -g npm
+  - node_js: 6
+    env: CXX=g++-4.8
+  - node_js: 8
+    env: CXX=g++-4.8
+    #  - node_js: stable
+    #    env: CXX=g++-4.8
 
 script:
   - npm run lint
-  - npm test
+  - npm run test
   - npm run coverage
-
+  - make test
-addons:
-  firefox: 'latest'
 
 before_script:
   - export DISPLAY=:99.0
@@ -23,3 +22,11 @@ before_script:
 
 after_success:
   - npm run coverage-publish
+
+addons:
+  firefox: 'latest'
+  apt:
+    sources:
+      - ubuntu-toolchain-r-test
+    packages:
+      - g++-4.8

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 David Dias
+Copyright (c) 2015-2016 David Dias
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -3,22 +3,44 @@
 [![](https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square)](http://ipn.io)
 [![](https://img.shields.io/badge/freenode-%23ipfs-blue.svg?style=flat-square)](http://webchat.freenode.net/?channels=%23ipfs)
 [![Build Status](https://travis-ci.org/libp2p/js-libp2p-tcp.svg?style=flat-square)](https://travis-ci.org/libp2p/js-libp2p-tcp)
-![](https://img.shields.io/badge/coverage-%3F-yellow.svg?style=flat-square)
+[![Coverage Status](https://coveralls.io/repos/github/libp2p/js-libp2p-tcp/badge.svg?branch=master)](https://coveralls.io/github/libp2p/js-libp2p-tcp?branch=master)
 [![Dependency Status](https://david-dm.org/libp2p/js-libp2p-tcp.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-tcp)
 [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](https://github.com/feross/standard)
+![](https://img.shields.io/badge/npm-%3E%3D3.0.0-orange.svg?style=flat-square)
+![](https://img.shields.io/badge/Node.js-%3E%3D6.0.0-orange.svg?style=flat-square)
 
 ![](https://raw.githubusercontent.com/libp2p/interface-connection/master/img/badge.png)
 ![](https://raw.githubusercontent.com/libp2p/interface-transport/master/img/badge.png)
 
 > Node.js implementation of the TCP module that libp2p uses, which implements the [interface-connection](https://github.com/libp2p/interface-connection) interface for dial/listen.
 
-## Description
-
 `libp2p-tcp` in Node.js is a very thin shim that adds support for dialing to a `multiaddr`. This small shim will enable libp2p to use other different transports.
 
 **Note:** This module uses [pull-streams](https://pull-stream.github.io) for all stream based interfaces.
 
-## Example
+## Table of Contents
+
+- [Install](#install)
+  - [npm](#npm)
+- [Usage](#usage)
+  - [Example](#example)
+  - [This module uses `pull-streams`](#this-module-uses-pull-streams)
+    - [Converting `pull-streams` to Node.js Streams](#converting-pull-streams-to-nodejs-streams)
+- [API](#api)
+- [Contribute](#contribute)
+- [License](#license)
+
+## Install
+
+### npm
+
+```sh
+> npm i libp2p-tcp
+```
+
+## Usage
+
+### Example
 
 ```js
 const TCP = require('libp2p-tcp')
@@ -51,25 +73,17 @@ listener.listen(() => {
 })
 ```
 
-outputs
+Outputs:
 
-```
+```sh
 listening
 new connection opened
 hello
 ```
 
-## Installation
+### This module uses `pull-streams`
 
-### npm
+We expose a streaming interface based on `pull-streams`, rather then on the Node.js core streams implementation (aka Node.js streams). `pull-streams` offers us a better mechanism for error handling and flow control guarantees. If you would like to know more about why we did this, see the discussion at this [issue](https://github.com/ipfs/js-ipfs/issues/362).
-
-```sh
-> npm i libp2p-tcp
-```
-
-## This module uses `pull-streams`
-
-We expose a streaming interface based on `pull-streams`, rather then on the Node.js core streams implementation (aka Node.js streams). `pull-streams` offers us a better mechanism for error handling and flow control guarantees. If you would like to know more about what took us to make this migration, see the discussion at this [issue](https://github.com/ipfs/js-ipfs/issues/362).
 
 You can learn more about pull-streams at:
 
@@ -78,22 +92,22 @@ You can learn more about pull-streams at:
 - [pull-streams, the simple streaming primitive](http://dominictarr.com/post/149248845122/pull-streams-pull-streams-are-a-very-simple)
 - [pull-streams documentation](https://pull-stream.github.io/)
 
-### Converting `pull-streams` to Node.js Streams
+#### Converting `pull-streams` to Node.js Streams
 
-If you are a Node.js streams user, you can convert a pull-stream to Node.js Stream using the module `pull-stream-to-stream`, giving you an instance of a Node.js stream that is linked to the pull-stream. Example:
+If you are a Node.js streams user, you can convert a pull-stream to a Node.js stream using the module [`pull-stream-to-stream`](https://github.com/dominictarr/pull-stream-to-stream), giving you an instance of a Node.js stream that is linked to the pull-stream. For example:
 
-```
+```js
 const pullToStream = require('pull-stream-to-stream')
 
 const nodeStreamInstance = pullToStream(pullStreamInstance)
 // nodeStreamInstance is an instance of a Node.js Stream
 ```
 
-To learn more about his utility, visit https://pull-stream.github.io/#pull-stream-to-stream
+To learn more about this utility, visit https://pull-stream.github.io/#pull-stream-to-stream.
 
 ## API
 
-[![](https://raw.githubusercontent.com/diasdavid/interface-transport/master/img/badge.png)](https://github.com/diasdavid/interface-transport)
+[![](https://raw.githubusercontent.com/libp2p/interface-transport/master/img/badge.png)](https://github.com/libp2p/interface-transport)
 
 `libp2p-tcp` accepts TCP addresses both IPFS and non IPFS encapsulated addresses, i.e:
 
@@ -102,6 +116,18 @@ To learn more about his utility, visit https://pull-stream.github.io/#pull-strea
 
 Both for dialing and listening.
 
+## Contribute
+
+Contributions are welcome! The libp2p implementation in JavaScript is a work in progress. As such, there's a few things you can do right now to help out:
+
+- [Check out the existing issues](//github.com/libp2p/js-libp2p-tcp/issues).
+- **Perform code reviews**.
+- **Add tests**. There can never be enough tests.
+
+Please be aware that all interactions related to libp2p are subject to the IPFS [Code of Conduct](https://github.com/ipfs/community/blob/master/code-of-conduct.md).
+
+Small note: If editing the README, please conform to the [standard-readme](https://github.com/RichardLitt/standard-readme) specification.
+
 ## License
 
-MIT
+[MIT](LICENSE) © 2015-2016 David Dias

circle.yml

@@ -5,8 +5,10 @@ machine:
 dependencies:
   pre:
     - google-chrome --version
-    - wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
+    - curl -L -o google-chrome.deb https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
-    - sudo sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
+    - sudo dpkg -i google-chrome.deb || true
     - sudo apt-get update
-    - sudo apt-get --only-upgrade install google-chrome-stable
+    - sudo apt-get install -f
+    - sudo apt-get install --only-upgrade lsb-base
+    - sudo dpkg -i google-chrome.deb
     - google-chrome --version

package.json

@@ -1,16 +1,14 @@
 {
   "name": "libp2p-tcp",
-  "version": "0.8.0",
+  "version": "0.11.0",
   "description": "Node.js implementation of the TCP module that libp2p uses, which implements the interface-connection and interface-transport interfaces",
-  "main": "lib/index.js",
+  "main": "src/index.js",
-  "jsnext:main": "src/index.js",
   "scripts": {
     "lint": "aegir-lint",
-    "build": "aegir-build --env node",
     "test": "aegir-test --env node",
-    "release": "aegir-release --env node",
+    "release": "aegir-release --env no-build",
-    "release-minor": "aegir-release --type minor --env node",
+    "release-minor": "aegir-release --type minor --env no-build",
-    "release-major": "aegir-release --type major --env node",
+    "release-major": "aegir-release --type major --env no-build",
     "coverage": "aegir-coverage",
     "coverage-publish": "aegir-coverage publish"
   },
@@ -20,7 +18,7 @@
   ],
   "repository": {
     "type": "git",
-    "url": "https://github.com/diasdavid/js-libp2p-tcp.git"
+    "url": "https://github.com/libp2p/js-libp2p-tcp.git"
   },
   "keywords": [
     "IPFS"
@@ -28,32 +26,40 @@
   "author": "David Dias <daviddias@ipfs.io>",
   "license": "MIT",
   "bugs": {
-    "url": "https://github.com/diasdavid/js-libp2p-tcp/issues"
+    "url": "https://github.com/libp2p/js-libp2p-tcp/issues"
+  },
+  "homepage": "https://github.com/libp2p/js-libp2p-tcp",
+  "engines": {
+    "node": ">=6.0.0",
+    "npm": ">=3.0.0"
   },
-  "homepage": "https://github.com/diasdavid/js-libp2p-tcp",
   "devDependencies": {
-    "aegir": "^6.0.1",
+    "aegir": "^11.0.2",
-    "chai": "^3.5.0",
+    "chai": "^4.1.2",
-    "interface-transport": "^0.3.3",
+    "dirty-chai": "^2.0.1",
+    "interface-transport": "~0.3.5",
     "lodash.isfunction": "^3.0.8",
-    "pre-commit": "^1.1.2"
+    "pre-commit": "^1.2.2",
+    "pull-stream": "^3.6.0"
   },
   "dependencies": {
-    "interface-connection": "0.2.1",
+    "interface-connection": "~0.3.2",
-    "ip-address": "^5.8.0",
+    "ip-address": "^5.8.8",
-    "lodash.contains": "^2.4.3",
+    "lodash.includes": "^4.3.0",
-    "mafmt": "^2.1.2",
+    "lodash.isfunction": "^3.0.8",
-    "multiaddr": "^2.0.2",
+    "mafmt": "^3.0.0",
-    "pull": "^2.1.1",
+    "multiaddr": "^3.0.0",
-    "stream-to-pull-stream": "^1.7.0"
+    "once": "^1.4.0",
+    "stream-to-pull-stream": "^1.7.2"
   },
   "contributors": [
     "David Dias <daviddias.p@gmail.com>",
     "Evan Schwartz <evan.mark.schwartz@gmail.com>",
+    "Friedel Ziegelmayer <dignifiedquire@gmail.com>",
+    "Greenkeeper <support@greenkeeper.io>",
     "João Antunes <j.goncalo.antunes@gmail.com>",
+    "Prashanth Chandra <coolshanth94@gmail.com>",
     "Richard Littauer <richard.littauer@gmail.com>",
-    "Stephen Whitmore <stephen.whitmore@gmail.com>",
+    "Stephen Whitmore <stephen.whitmore@gmail.com>"
-    "dignifiedquire <dignifiedquire@gmail.com>",
-    "greenkeeperio-bot <support@greenkeeper.io>"
   ]
 }

src/get-multiaddr.js

@@ -4,7 +4,7 @@ const multiaddr = require('multiaddr')
 const Address6 = require('ip-address').Address6
 
 module.exports = (socket) => {
-  var mh
+  let mh
 
   if (socket.remoteFamily === 'IPv6') {
     var addr = new Address6(socket.remoteAddress)

src/index.js

@@ -3,41 +3,50 @@
 const net = require('net')
 const toPull = require('stream-to-pull-stream')
 const mafmt = require('mafmt')
-const contains = require('lodash.contains')
+const includes = require('lodash.includes')
 const isFunction = require('lodash.isfunction')
 const Connection = require('interface-connection').Connection
+const once = require('once')
 const debug = require('debug')
 const log = debug('libp2p:tcp:dial')
 
 const createListener = require('./listener')
 
-module.exports = class TCP {
+function noop () {}
-  dial (ma, options, cb) {
+
+class TCP {
+  dial (ma, options, callback) {
     if (isFunction(options)) {
-      cb = options
+      callback = options
       options = {}
     }
 
-    if (!cb) {
+    callback = callback || noop
-      cb = () => {}
-    }
 
+    callback = once(callback)
     const cOpts = ma.toOptions()
     log('Connecting to %s %s', cOpts.port, cOpts.host)
 
-    const rawSocket = net.connect(cOpts, cb)
+    const rawSocket = net.connect(cOpts)
 
     rawSocket.once('timeout', () => {
       log('timeout')
       rawSocket.emit('error', new Error('Timeout'))
     })
 
+    rawSocket.once('error', callback)
+
+    rawSocket.once('connect', () => {
+      rawSocket.removeListener('error', callback)
+      callback()
+    })
+
     const socket = toPull.duplex(rawSocket)
 
     const conn = new Connection(socket)
 
-    conn.getObservedAddrs = (cb) => {
+    conn.getObservedAddrs = (callback) => {
-      return cb(null, [ma])
+      return callback(null, [ma])
     }
 
     return conn
@@ -59,10 +68,12 @@ module.exports = class TCP {
       multiaddrs = [multiaddrs]
     }
     return multiaddrs.filter((ma) => {
-      if (contains(ma.protoNames(), 'ipfs')) {
+      if (includes(ma.protoNames(), 'ipfs')) {
         ma = ma.decapsulate('ipfs')
       }
       return mafmt.TCP.matches(ma)
     })
   }
 }
+
+module.exports = TCP

src/listener.js

@@ -3,7 +3,7 @@
 const multiaddr = require('multiaddr')
 const Connection = require('interface-connection').Connection
 const os = require('os')
-const contains = require('lodash.contains')
+const includes = require('lodash.includes')
 const net = require('net')
 const toPull = require('stream-to-pull-stream')
 const EventEmitter = require('events').EventEmitter
@@ -15,16 +15,22 @@ const getMultiaddr = require('./get-multiaddr')
 const IPFS_CODE = 421
 const CLOSE_TIMEOUT = 2000
 
+function noop () {}
+
 module.exports = (handler) => {
   const listener = new EventEmitter()
 
   const server = net.createServer((socket) => {
+    // Avoid uncaught errors cause by unstable connections
+    socket.on('error', noop)
+
     const addr = getMultiaddr(socket)
     log('new connection', addr.toString())
 
     const s = toPull.duplex(socket)
+
     s.getObservedAddrs = (cb) => {
-      return cb(null, [addr])
+      cb(null, [addr])
     }
 
     trackSocket(server, socket)
@@ -34,36 +40,31 @@ module.exports = (handler) => {
     listener.emit('connection', conn)
   })
 
-  server.on('listening', () => {
+  server.on('listening', () => listener.emit('listening'))
-    listener.emit('listening')
+  server.on('error', (err) => listener.emit('error', err))
-  })
+  server.on('close', () => listener.emit('close'))
-
-  server.on('error', (err) => {
-    listener.emit('error', err)
-  })
-
-  server.on('close', () => {
-    listener.emit('close')
-  })
 
   // Keep track of open connections to destroy in case of timeout
   server.__connections = {}
 
-  listener.close = (options, cb) => {
+  listener.close = (options, callback) => {
     if (typeof options === 'function') {
-      cb = options
+      callback = options
       options = {}
     }
-    cb = cb || (() => {})
+    callback = callback || noop
     options = options || {}
 
     let closed = false
-    server.close(cb)
+    server.close(callback)
+
     server.once('close', () => {
       closed = true
     })
     setTimeout(() => {
-      if (closed) return
+      if (closed) {
+        return
+      }
 
       log('unable to close graciously, destroying conns')
       Object.keys(server.__connections).forEach((key) => {
@@ -76,24 +77,24 @@ module.exports = (handler) => {
   let ipfsId
   let listeningAddr
 
-  listener.listen = (ma, cb) => {
+  listener.listen = (ma, callback) => {
     listeningAddr = ma
-    if (contains(ma.protoNames(), 'ipfs')) {
+    if (includes(ma.protoNames(), 'ipfs')) {
       ipfsId = getIpfsId(ma)
       listeningAddr = ma.decapsulate('ipfs')
     }
 
     const lOpts = listeningAddr.toOptions()
     log('Listening on %s %s', lOpts.port, lOpts.host)
-    return server.listen(lOpts.port, lOpts.host, cb)
+    return server.listen(lOpts.port, lOpts.host, callback)
   }
 
-  listener.getAddrs = (cb) => {
+  listener.getAddrs = (callback) => {
     const multiaddrs = []
     const address = server.address()
 
     if (!address) {
-      return cb(new Error('Listener is not ready yet'))
+      return callback(new Error('Listener is not ready yet'))
     }
 
     // Because TCP will only return the IPv6 version
@@ -128,7 +129,7 @@ module.exports = (handler) => {
       multiaddrs.push(ma)
     }
 
-    cb(null, multiaddrs)
+    callback(null, multiaddrs)
   }
 
   return listener

test/index.spec.js

@@ -2,7 +2,10 @@
 'use strict'
 
 const pull = require('pull-stream')
-const expect = require('chai').expect
+const chai = require('chai')
+const dirtyChai = require('dirty-chai')
+const expect = chai.expect
+chai.use(dirtyChai)
 const TCP = require('../src')
 const net = require('net')
 const multiaddr = require('multiaddr')
@@ -11,7 +14,7 @@ const Connection = require('interface-connection').Connection
 describe('instantiate the transport', () => {
   it('create', () => {
     const tcp = new TCP()
-    expect(tcp).to.exist
+    expect(tcp).to.exist()
   })
 })
 
@@ -71,7 +74,7 @@ describe('listen', () => {
     const listener = tcp.createListener((conn) => {})
     listener.listen(mh, () => {
       listener.getAddrs((err, multiaddrs) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
         expect(multiaddrs.length).to.equal(1)
         expect(multiaddrs[0]).to.deep.equal(mh)
         listener.close(done)
@@ -84,7 +87,7 @@ describe('listen', () => {
     const listener = tcp.createListener((conn) => {})
     listener.listen(mh, () => {
       listener.getAddrs((err, multiaddrs) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
         expect(multiaddrs.length).to.equal(1)
         listener.close(done)
       })
@@ -96,7 +99,7 @@ describe('listen', () => {
     const listener = tcp.createListener((conn) => {})
     listener.listen(mh, () => {
       listener.getAddrs((err, multiaddrs) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
         expect(multiaddrs.length > 0).to.equal(true)
         expect(multiaddrs[0].toString().indexOf('0.0.0.0')).to.equal(-1)
         listener.close(done)
@@ -109,7 +112,7 @@ describe('listen', () => {
     const listener = tcp.createListener((conn) => {})
     listener.listen(mh, () => {
       listener.getAddrs((err, multiaddrs) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
         expect(multiaddrs.length > 0).to.equal(true)
         expect(multiaddrs[0].toString().indexOf('0.0.0.0')).to.equal(-1)
         listener.close(done)
@@ -122,7 +125,7 @@ describe('listen', () => {
     const listener = tcp.createListener((conn) => {})
     listener.listen(mh, () => {
       listener.getAddrs((err, multiaddrs) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
         expect(multiaddrs.length).to.equal(1)
         expect(multiaddrs[0]).to.deep.equal(mh)
         listener.close(done)
@@ -157,12 +160,8 @@ describe('dial', () => {
       pull.values(['hey']),
       tcp.dial(ma),
       pull.collect((err, values) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
-        expect(
+        expect(values).to.eql([new Buffer('hey!')])
-          values
-        ).to.be.eql(
-          [new Buffer('hey!')]
-        )
         done()
       })
     )
@@ -173,7 +172,7 @@ describe('dial', () => {
     pull(
       tcp.dial(ma),
       pull.onEnd((err) => {
-        expect(err).to.exist
+        expect(err).to.exist()
         done()
       })
     )
@@ -189,13 +188,9 @@ describe('dial', () => {
         pull.values(['hey']),
         tcp.dial(ma),
         pull.collect((err, values) => {
-          expect(err).to.not.exist
+          expect(err).to.not.exist()
 
-          expect(
+          expect(values).to.be.eql([new Buffer('hey')])
-            values
-          ).to.be.eql([
-            new Buffer('hey')
-          ])
 
           listener.close(done)
         })
@@ -258,7 +253,7 @@ describe('dial', () => {
       pull.values(['hey']),
       conn,
       pull.collect((err, res) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
         expect(res).to.be.eql([new Buffer('hey!')])
         done()
       })
@@ -307,9 +302,9 @@ describe('valid Connection', () => {
     let dialerObsAddrs
 
     const listener = tcp.createListener((conn) => {
-      expect(conn).to.exist
+      expect(conn).to.exist()
       conn.getObservedAddrs((err, addrs) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
         dialerObsAddrs = addrs
         pull(pull.empty(), conn)
       })
@@ -324,7 +319,7 @@ describe('valid Connection', () => {
 
       function endHandler () {
         conn.getObservedAddrs((err, addrs) => {
-          expect(err).to.not.exist
+          expect(err).to.not.exist()
           pull(pull.empty(), conn)
           closeAndAssert(listener, addrs)
         })
@@ -342,10 +337,10 @@ describe('valid Connection', () => {
 
   it('get Peer Info', (done) => {
     const listener = tcp.createListener((conn) => {
-      expect(conn).to.exist
+      expect(conn).to.exist()
       conn.getPeerInfo((err, peerInfo) => {
-        expect(err).to.exist
+        expect(err).to.exist()
-        expect(peerInfo).to.not.exist
+        expect(peerInfo).to.not.exist()
         pull(pull.empty(), conn)
       })
     })
@@ -356,8 +351,8 @@ describe('valid Connection', () => {
       pull(conn, pull.onEnd(endHandler))
       function endHandler () {
         conn.getPeerInfo((err, peerInfo) => {
-          expect(err).to.exist
+          expect(err).to.exist()
-          expect(peerInfo).to.not.exist
+          expect(peerInfo).to.not.exist()
 
           listener.close(done)
         })
@@ -367,10 +362,10 @@ describe('valid Connection', () => {
 
   it('set Peer Info', (done) => {
     const listener = tcp.createListener((conn) => {
-      expect(conn).to.exist
+      expect(conn).to.exist()
       conn.setPeerInfo('batatas')
       conn.getPeerInfo((err, peerInfo) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
         expect(peerInfo).to.equal('batatas')
         pull(pull.empty(), conn)
       })
@@ -383,7 +378,7 @@ describe('valid Connection', () => {
       function endHandler () {
         conn.setPeerInfo('arroz')
         conn.getPeerInfo((err, peerInfo) => {
-          expect(err).to.not.exist
+          expect(err).to.not.exist()
           expect(peerInfo).to.equal('arroz')
 
           listener.close(done)
@@ -424,11 +419,11 @@ describe('Connection wrap', () => {
       pull.values(['hey']),
       connWrap,
       pull.collect((err, chunks) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
         expect(chunks).to.be.eql([new Buffer('hey')])
 
         connWrap.getPeerInfo((err, peerInfo) => {
-          expect(err).to.not.exist
+          expect(err).to.not.exist()
           expect(peerInfo).to.equal('peerInfo')
           done()
         })
@@ -443,7 +438,7 @@ describe('Connection wrap', () => {
       pull.values(['hey']),
       connWrap,
       pull.collect((err, chunks) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
         expect(chunks).to.be.eql([new Buffer('hey')])
         done()
       })
@@ -459,23 +454,30 @@ describe('Connection wrap', () => {
       callback(null, 'none')
     }
     conn.getPeerInfo((err, peerInfo) => {
-      expect(err).to.exist
+      expect(err).to.exist()
     })
     connWrap.getPeerInfo((err, peerInfo) => {
-      expect(err).to.not.exist
+      expect(err).to.not.exist()
       expect(peerInfo).to.equal('none')
     })
     pull(
       pull.values(['hey']),
       connWrap,
       pull.collect((err, chunks) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
         expect(chunks).to.be.eql([new Buffer('hey')])
         done()
       })
     )
   })
 
+  it('dial error', (done) => {
+    tcp.dial(multiaddr('/ip4/999.0.0.1/tcp/1234'), (err) => {
+      expect(err).to.exist()
+      done()
+    })
+  })
+
   it('matryoshka wrap', (done) => {
     const conn = tcp.dial(ma)
     const connWrap1 = new Connection(conn)
@@ -489,10 +491,10 @@ describe('Connection wrap', () => {
       pull.values(['hey']),
       connWrap3,
       pull.collect((err, chunks) => {
-        expect(err).to.not.exist
+        expect(err).to.not.exist()
         expect(chunks).to.be.eql([new Buffer('hey')])
         connWrap3.getPeerInfo((err, peerInfo) => {
-          expect(err).to.not.exist
+          expect(err).to.not.exist()
           expect(peerInfo).to.equal('inner doll')
           done()
         })