chore: add coverage scripts

License: MIT
Signed-off-by: Jacob Heun <jacobheun@gmail.com>

.gitignore

@@ -4,11 +4,15 @@ docs
 test/repo-tests*
 **/bundle.js
 
+# yarn
+yarn.lock
+
 # Logs
 logs
 *.log
 
 coverage
+.nyc_output
 
 # Runtime data
 pids

.travis.yml

@@ -1,32 +1,34 @@
-# Warning: This file is automatically synced from https://github.com/ipfs/ci-sync so if you want to change it, please change it there and ask someone to sync all repositories.
-sudo: false
 language: node_js
+cache: npm
+sudo: false
 
-matrix:
+stages:
-  include:
+  - check
-  - node_js: 6
+  - test
-    env: CXX=g++-4.8
+  - cov
-  - node_js: 8
-    env: CXX=g++-4.8
-    #  - node_js: stable
-    #    env: CXX=g++-4.8
 
-script:
+node_js:
-  - npm run lint
+  - '10'
-  - npm run test
+  - '12'
-  - npm run coverage
+
+os:
+  - linux
+  - osx
+  - windows
 
 before_script:
-  - export DISPLAY=:99.0
+  - if [ "$TRAVIS_OS_NAME" = "linux" ]; then sudo sh -c 'echo 0 > /proc/sys/net/ipv6/conf/all/disable_ipv6'; fi
-  - sh -e /etc/init.d/xvfb start
+script: npx nyc -s npm run test:node -- --bail
+after_success: npx nyc report --reporter=text-lcov > coverage.lcov && npx codecov
 
-after_success:
+jobs:
-  - npm run coverage-publish
+  include:
+    - stage: check
+      os: linux
+      script:
+        - npx aegir build --bundlesize
+        - npx aegir dep-check
+        - npm run lint
 
-addons:
+notifications:
-  firefox: 'latest'
+  email: false
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - g++-4.8

CHANGELOG.md

@@ -1,3 +1,43 @@
+<a name="0.13.1"></a>
+## [0.13.1](https://github.com/libp2p/js-libp2p-tcp/compare/v0.13.0...v0.13.1) (2019-08-08)
+
+
+
+<a name="0.13.0"></a>
+# [0.13.0](https://github.com/libp2p/js-libp2p-tcp/compare/v0.12.1...v0.13.0) (2018-09-12)
+
+
+### Features
+
+* add support for dialing over dns ([eba0b48](https://github.com/libp2p/js-libp2p-tcp/commit/eba0b48))
+
+
+
+<a name="0.12.1"></a>
+## [0.12.1](https://github.com/libp2p/js-libp2p-tcp/compare/v0.12.0...v0.12.1) (2018-07-31)
+
+
+### Bug Fixes
+
+* invalid ip address and daemon can be crashed by remote user ([4b04b17](https://github.com/libp2p/js-libp2p-tcp/commit/4b04b17))
+
+
+
+<a name="0.12.0"></a>
+# [0.12.0](https://github.com/libp2p/js-libp2p-tcp/compare/v0.11.6...v0.12.0) (2018-04-05)
+
+
+### Features
+
+* add class-is module ([ded1f68](https://github.com/libp2p/js-libp2p-tcp/commit/ded1f68))
+
+
+
+<a name="0.11.6"></a>
+## [0.11.6](https://github.com/libp2p/js-libp2p-tcp/compare/v0.11.5...v0.11.6) (2018-02-20)
+
+
+
 <a name="0.11.5"></a>
 ## [0.11.5](https://github.com/libp2p/js-libp2p-tcp/compare/v0.11.4...v0.11.5) (2018-02-07)
 

README.md

@@ -1,31 +1,29 @@
 # js-libp2p-tcp
 
-[![](https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square)](http://ipn.io)
+[![](https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square)](http://protocol.ai)
-[![](https://img.shields.io/badge/freenode-%23ipfs-blue.svg?style=flat-square)](http://webchat.freenode.net/?channels=%23ipfs)
+[![](https://img.shields.io/badge/project-libp2p-yellow.svg?style=flat-square)](http://libp2p.io/)
-[![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/freenode-%23libp2p-yellow.svg?style=flat-square)](http://webchat.freenode.net/?channels=%23libp2p)
-[![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)
+[![Discourse posts](https://img.shields.io/discourse/https/discuss.libp2p.io/posts.svg)](https://discuss.libp2p.io)
+[![](https://img.shields.io/codecov/c/github/libp2p/js-libp2p-tcp.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-tcp)
+[![](https://img.shields.io/travis/libp2p/js-libp2p-tcp.svg?style=flat-square)](https://travis-ci.com/libp2p/js-libp2p-tcp)
 [![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)](https://github.com/libp2p/interface-transport)
-![](https://raw.githubusercontent.com/libp2p/interface-transport/master/img/badge.png)
+[![](https://raw.githubusercontent.com/libp2p/interface-connection/master/img/badge.png)](https://github.com/libp2p/interface-connection)
 
-> 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.
 
-`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.
+> JavaScript implementation of the TCP module for libp2p. It exposes the [interface-transport](https://github.com/libp2p/interface-connection) for dial/listen. `libp2p-tcp` is a very thin shim that adds support for dialing to a `multiaddr`. This small shim will enable libp2p to use other transports.
 
-**Note:** This module uses [pull-streams](https://pull-stream.github.io) for all stream based interfaces.
+## Lead Maintainer
+
+[Jacob Heun](https://github.com/jacobheun)
 
 ## 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)
@@ -35,42 +33,41 @@
 ### npm
 
 ```sh
-> npm i libp2p-tcp
+> npm install libp2p-tcp
 ```
 
 ## Usage
 
-### Example
-
 ```js
 const TCP = require('libp2p-tcp')
 const multiaddr = require('multiaddr')
-const pull = require('pull-stream')
+const pipe = require('it-pipe')
+const { collect } = require('streaming-iterables')
 
-const mh1 = multiaddr('/ip4/127.0.0.1/tcp/9090')
+const addr = multiaddr('/ip4/127.0.0.1/tcp/9090')
-const mh2 = multiaddr('/ip6/::/tcp/9092')
 
 const tcp = new TCP()
 
-const listener = tcp.createListener(mh1, (socket) => {
+const listener = tcp.createListener((socket) => {
   console.log('new connection opened')
-  pull(
+  pipe(
-    pull.values(['hello']),
+    ['hello'],
     socket
   )
 })
 
-listener.listen(() => {
+await listener.listen(addr)
-  console.log('listening')
+console.log('listening')
 
-  pull(
+const socket = await tcp.dial(addr)
-    tcp.dial(mh1),
+const values = await pipe(
-    pull.log,
+  socket,
-    pull.onEnd(() => {
+  collect
-      tcp.close()
+)
-    })
+console.log(`Value: ${values.toString()}`)
-  )
+
-})
+// Close connection after reading
+await listener.close()
 ```
 
 Outputs:
@@ -78,43 +75,25 @@ Outputs:
 ```sh
 listening
 new connection opened
-hello
+Value: hello
 ```
 
-### 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 why we did this, see the discussion at this [issue](https://github.com/ipfs/js-ipfs/issues/362).
-
-You can learn more about pull-streams at:
-
-- [The history of Node.js streams, nodebp April 2014](https://www.youtube.com/watch?v=g5ewQEuXjsQ)
-- [The history of streams, 2016](http://dominictarr.com/post/145135293917/history-of-streams)
-- [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
-
-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 this utility, visit https://pull-stream.github.io/#pull-stream-to-stream.
-
 ## API
 
+### 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:
+`libp2p-tcp` accepts TCP addresses as both IPFS and non IPFS encapsulated addresses, i.e:
 
 `/ip4/127.0.0.1/tcp/4001`
 `/ip4/127.0.0.1/tcp/4001/ipfs/QmHash`
 
-Both for dialing and listening.
+(both for dialing and listening)
+
+### Connection
+
+[![](https://raw.githubusercontent.com/libp2p/interface-connection/master/img/badge.png)](https://github.com/libp2p/interface-connection)
 
 ## Contribute
 

appveyor.yml

@@ -1,29 +0,0 @@
-# Warning: This file is automatically synced from https://github.com/ipfs/ci-sync so if you want to change it, please change it there and ask someone to sync all repositories.
-version: "{build}"
-
-environment:
-  matrix:
-    - nodejs_version: "6"
-    - nodejs_version: "8"
-
-matrix:
-  fast_finish: true
-
-install:
-  # Install Node.js
-  - ps: Install-Product node $env:nodejs_version
-
-  # Upgrade npm
-  - npm install -g npm
-
-  # Output our current versions for debugging
-  - node --version
-  - npm --version
-
-  # Install our package dependencies
-  - npm install
-
-test_script:
-  - npm run test:node
-
-build: off

ci/Jenkinsfile

@@ -1,2 +0,0 @@
-// Warning: This file is automatically synced from https://github.com/ipfs/ci-sync so if you want to change it, please change it there and ask someone to sync all repositories.
-javascript()

circle.yml

@@ -1,15 +0,0 @@
-# Warning: This file is automatically synced from https://github.com/ipfs/ci-sync so if you want to change it, please change it there and ask someone to sync all repositories.
-machine:
-  node:
-    version: stable
-
-dependencies:
-  pre:
-    - google-chrome --version
-    - curl -L -o google-chrome.deb https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
-    - sudo dpkg -i google-chrome.deb || true
-    - sudo apt-get update
-    - sudo apt-get install -f
-    - sudo apt-get install --only-upgrade lsb-base
-    - sudo dpkg -i google-chrome.deb
-    - google-chrome --version

package.json

@@ -1,20 +1,22 @@
 {
   "name": "libp2p-tcp",
-  "version": "0.11.5",
+  "version": "0.13.1",
   "description": "Node.js implementation of the TCP module that libp2p uses, which implements the interface-connection and interface-transport interfaces",
+  "leadMaintainer": "Jacob Heun <jacobheun@gmail.com>",
   "main": "src/index.js",
   "scripts": {
     "lint": "aegir lint",
     "test": "aegir test -t node",
+    "test:node": "aegir test -t node",
+    "build": "aegir build",
+    "docs": "aegir docs",
     "release": "aegir release -t node --no-build",
     "release-minor": "aegir release -t node --type minor --no-build",
     "release-major": "aegir-release -t node --type major --no-build",
-    "coverage": "aegir coverage",
+    "coverage": "nyc --reporter=text --reporter=lcov npm run test:node"
-    "coverage-publish": "aegir coverage --provider coveralls"
   },
   "pre-push": [
-    "lint",
+    "lint"
-    "test"
   ],
   "repository": {
     "type": "git",
@@ -23,7 +25,6 @@
   "keywords": [
     "IPFS"
   ],
-  "author": "David Dias <daviddias@ipfs.io>",
   "license": "MIT",
   "bugs": {
     "url": "https://github.com/libp2p/js-libp2p-tcp/issues"
@@ -34,36 +35,45 @@
     "npm": ">=3.0.0"
   },
   "devDependencies": {
-    "aegir": "^12.4.0",
+    "aegir": "^20.0.0",
-    "chai": "^4.1.2",
+    "chai": "^4.2.0",
     "dirty-chai": "^2.0.1",
-    "interface-transport": "~0.3.5",
+    "pull-stream": "^3.6.9",
-    "lodash.isfunction": "^3.0.9",
+    "sinon": "^7.4.1"
-    "pre-commit": "^1.2.2",
-    "pull-stream": "^3.6.1"
   },
   "dependencies": {
-    "debug": "^3.1.0",
+    "abortable-iterator": "^2.1.0",
-    "interface-connection": "~0.3.2",
+    "class-is": "^1.1.0",
-    "ip-address": "^5.8.9",
+    "debug": "^4.1.1",
+    "err-code": "^1.1.2",
+    "interface-connection": "~0.3.3",
+    "interface-transport": "~0.5.2",
+    "ip-address": "^6.1.0",
+    "it-pipe": "^1.0.1",
     "lodash.includes": "^4.3.0",
     "lodash.isfunction": "^3.0.9",
-    "mafmt": "^3.0.2",
+    "mafmt": "^6.0.8",
-    "multiaddr": "^3.0.2",
+    "multiaddr": "^6.1.0",
-    "once": "^1.4.0",
+    "streaming-iterables": "^4.1.0"
-    "stream-to-pull-stream": "^1.7.2"
   },
   "contributors": [
     "Alan Shaw <alan@tableflip.io>",
     "David Dias <daviddias.p@gmail.com>",
+    "Diogo Silva <fsdiogo@gmail.com>",
     "Dmitriy Ryajov <dryajov@gmail.com>",
+    "Drew Stone <drewstone329@gmail.com>",
     "Evan Schwartz <evan.mark.schwartz@gmail.com>",
     "Friedel Ziegelmayer <dignifiedquire@gmail.com>",
     "Greenkeeper <support@greenkeeper.io>",
+    "Jacob Heun <jacobheun@gmail.com>",
+    "Jacob Heun <jake@andyet.net>",
     "João Antunes <j.goncalo.antunes@gmail.com>",
+    "Linus Unnebäck <linus@folkdatorn.se>",
     "Pedro Teixeira <i@pgte.me>",
     "Prashanth Chandra <coolshanth94@gmail.com>",
     "Richard Littauer <richard.littauer@gmail.com>",
-    "Stephen Whitmore <stephen.whitmore@gmail.com>"
+    "Stephen Whitmore <stephen.whitmore@gmail.com>",
+    "TomCoded <tomtinkerer@gmail.com>",
+    "Vasco Santos <vasco.santos@moxy.studio>"
   ]
 }

src/adapter.js

@@ -0,0 +1,17 @@
+'use strict'
+
+const { Adapter } = require('interface-transport')
+const withIs = require('class-is')
+const TCP = require('.')
+
+// Legacy adapter to old transport & connection interface
+class TcpAdapter extends Adapter {
+  constructor () {
+    super(new TCP())
+  }
+}
+
+module.exports = withIs(TcpAdapter, {
+  className: 'TCP',
+  symbolName: '@libp2p/js-libp2p-tcp/tcp'
+})

src/constants.js

@@ -0,0 +1,8 @@
+'use strict'
+
+// IPFS multi-address code
+module.exports.IPFS_MA_CODE = 421
+
+// Time to wait for a connection to close gracefully before destroying it
+// manually
+module.exports.CLOSE_TIMEOUT = 2000

src/get-multiaddr.js

@@ -2,21 +2,32 @@
 
 const multiaddr = require('multiaddr')
 const Address6 = require('ip-address').Address6
+const debug = require('debug')
+const log = debug('libp2p:tcp:get-multiaddr')
 
 module.exports = (socket) => {
-  let mh
+  let ma
 
-  if (socket.remoteFamily === 'IPv6') {
+  try {
-    var addr = new Address6(socket.remoteAddress)
+    if (socket.remoteFamily === 'IPv6') {
-    if (addr.v4) {
+      const addr = new Address6(socket.remoteAddress)
-      var ip4 = addr.to4().correctForm()
+
-      mh = multiaddr('/ip4/' + ip4 + '/tcp/' + socket.remotePort)
+      if (addr.v4) {
+        const ip4 = addr.to4().correctForm()
+        ma = multiaddr('/ip4/' + ip4 +
+          '/tcp/' + socket.remotePort
+        )
+      } else {
+        ma = multiaddr('/ip6/' + socket.remoteAddress +
+          '/tcp/' + socket.remotePort
+        )
+      }
     } else {
-      mh = multiaddr('/ip6/' + socket.remoteAddress + '/tcp/' + socket.remotePort)
+      ma = multiaddr('/ip4/' + socket.remoteAddress +
+        '/tcp/' + socket.remotePort)
     }
-  } else {
+  } catch (err) {
-    mh = multiaddr('/ip4/' + socket.remoteAddress + '/tcp/' + socket.remotePort)
+    log(err)
   }
-
+  return ma
-  return mh
 }

src/index.js

@@ -1,55 +1,76 @@
 'use strict'
 
 const net = require('net')
-const toPull = require('stream-to-pull-stream')
 const mafmt = require('mafmt')
+const withIs = require('class-is')
 const includes = require('lodash.includes')
 const isFunction = require('lodash.isfunction')
-const Connection = require('interface-connection').Connection
+const errcode = require('err-code')
-const once = require('once')
 const debug = require('debug')
 const log = debug('libp2p:tcp:dial')
 
+const Libp2pSocket = require('./socket')
 const createListener = require('./listener')
+const { AbortError } = require('interface-transport')
 
 function noop () {}
 
 class TCP {
-  dial (ma, options, callback) {
+  async dial (ma, options) {
-    if (isFunction(options)) {
-      callback = options
-      options = {}
-    }
-
-    callback = callback || noop
-
-    callback = once(callback)
     const cOpts = ma.toOptions()
-    log('Connecting to %s %s', cOpts.port, cOpts.host)
+    log('Dialing %s:%s', cOpts.host, cOpts.port)
 
-    const rawSocket = net.connect(cOpts)
+    const rawSocket = await this._connect(cOpts, options)
+    return new Libp2pSocket(rawSocket, ma, options)
+  }
 
-    rawSocket.once('timeout', () => {
+  _connect (cOpts, options = {}) {
-      log('timeout')
+    return new Promise((resolve, reject) => {
-      rawSocket.emit('error', new Error('Timeout'))
+      if ((options.signal || {}).aborted) {
+        return reject(new AbortError())
+      }
+
+      const start = Date.now()
+      const rawSocket = net.connect(cOpts)
+
+      const onError = (err) => {
+        const msg = `Error dialing ${cOpts.host}:${cOpts.port}: ${err.message}`
+        done(errcode(msg, err.code))
+      }
+
+      const onTimeout = () => {
+        log('Timeout dialing %s:%s', cOpts.host, cOpts.port)
+        const err = errcode(`Timeout after ${Date.now() - start}ms`, 'ETIMEDOUT')
+        // Note: this will result in onError() being called
+        rawSocket.emit('error', err)
+      }
+
+      const onConnect = () => {
+        log('Connected to %s:%s', cOpts.host, cOpts.port)
+        done(null, rawSocket)
+      }
+
+      const onAbort = () => {
+        log('Dial to %s:%s aborted', cOpts.host, cOpts.port)
+        rawSocket.destroy()
+        done(new AbortError())
+      }
+
+      const done = (err, res) => {
+        rawSocket.removeListener('error', onError)
+        rawSocket.removeListener('timeout', onTimeout)
+        rawSocket.removeListener('connect', onConnect)
+
+        options.signal && options.signal.removeEventListener('abort', onAbort)
+
+        err ? reject(err) : resolve(res)
+      }
+
+      rawSocket.once('error', onError)
+      rawSocket.once('timeout', onTimeout)
+      rawSocket.once('connect', onConnect)
+      options.signal && options.signal.addEventListener('abort', onAbort)
     })
-
-    rawSocket.once('error', callback)
-
-    rawSocket.once('connect', () => {
-      rawSocket.removeListener('error', callback)
-      callback()
-    })
-
-    const socket = toPull.duplex(rawSocket)
-
-    const conn = new Connection(socket)
-
-    conn.getObservedAddrs = (callback) => {
-      return callback(null, [ma])
-    }
-
-    return conn
   }
 
   createListener (options, handler) {
@@ -58,8 +79,7 @@ class TCP {
       options = {}
     }
 
-    handler = handler || (() => {})
+    handler = handler || noop
-
     return createListener(handler)
   }
 
@@ -82,4 +102,4 @@ class TCP {
   }
 }
 
-module.exports = TCP
+module.exports = withIs(TCP, { className: 'TCP', symbolName: '@libp2p/js-libp2p-tcp/tcp' })

src/listener.js

@@ -1,43 +1,44 @@
 'use strict'
 
 const multiaddr = require('multiaddr')
-const Connection = require('interface-connection').Connection
 const os = require('os')
 const includes = require('lodash.includes')
 const net = require('net')
-const toPull = require('stream-to-pull-stream')
 const EventEmitter = require('events').EventEmitter
 const debug = require('debug')
 const log = debug('libp2p:tcp:listen')
+const logError = debug('libp2p:tcp:listen:error')
 
+const Libp2pSocket = require('./socket')
 const getMultiaddr = require('./get-multiaddr')
-
+const c = require('./constants')
-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
+    // Avoid uncaught errors caused by unstable connections
-    socket.on('error', noop)
+    socket.on('error', (err) => {
+      logError('Error emitted by server handler socket: ' + err.message)
+    })
 
     const addr = getMultiaddr(socket)
-    log('new connection', addr.toString())
+    if (!addr) {
-
+      if (socket.remoteAddress === undefined) {
-    const s = toPull.duplex(socket)
+        log('connection closed before p2p connection made')
-
+      } else {
-    s.getObservedAddrs = (cb) => {
+        log('error interpreting incoming p2p connection')
-      cb(null, [addr])
+      }
+      return
     }
 
+    log('new connection', addr.toString())
+
+    const s = new Libp2pSocket(socket, addr)
     trackSocket(server, socket)
 
-    const conn = new Connection(s)
+    handler && handler(s)
-    handler(conn)
+    listener.emit('connection', s)
-    listener.emit('connection', conn)
   })
 
   server.on('listening', () => listener.emit('listening'))
@@ -47,33 +48,35 @@ module.exports = (handler) => {
   // Keep track of open connections to destroy in case of timeout
   server.__connections = {}
 
-  listener.close = (options, callback) => {
+  listener.close = (options = {}) => {
-    if (typeof options === 'function') {
+    if (!server.listening) {
-      callback = options
+      return
-      options = {}
     }
-    callback = callback || noop
-    options = options || {}
 
-    const timeout = setTimeout(() => {
+    return new Promise((resolve, reject) => {
-      log('unable to close graciously, destroying conns')
+      const start = Date.now()
-      Object.keys(server.__connections).forEach((key) => {
-        log('destroying %s', key)
-        server.__connections[key].destroy()
-      })
-    }, options.timeout || CLOSE_TIMEOUT)
 
-    server.close(callback)
+      // Attempt to stop the server. If it takes longer than the timeout,
+      // destroy all the underlying sockets manually.
+      const timeout = setTimeout(() => {
+        log('Timeout closing server after %dms, destroying connections manually', Date.now() - start)
+        Object.keys(server.__connections).forEach((key) => {
+          log('destroying %s', key)
+          server.__connections[key].destroy()
+        })
+        resolve()
+      }, options.timeout || c.CLOSE_TIMEOUT)
 
-    server.once('close', () => {
+      server.once('close', () => clearTimeout(timeout))
-      clearTimeout(timeout)
+
+      server.close((err) => err ? reject(err) : resolve())
     })
   }
 
   let ipfsId
   let listeningAddr
 
-  listener.listen = (ma, callback) => {
+  listener.listen = (ma) => {
     listeningAddr = ma
     if (includes(ma.protoNames(), 'ipfs')) {
       ipfsId = getIpfsId(ma)
@@ -81,16 +84,24 @@ module.exports = (handler) => {
     }
 
     const lOpts = listeningAddr.toOptions()
-    log('Listening on %s %s', lOpts.port, lOpts.host)
+    return new Promise((resolve, reject) => {
-    return server.listen(lOpts.port, lOpts.host, callback)
+      server.listen(lOpts.port, lOpts.host, (err) => {
+        if (err) {
+          return reject(err)
+        }
+
+        log('Listening on %s %s', lOpts.port, lOpts.host)
+        resolve()
+      })
+    })
   }
 
-  listener.getAddrs = (callback) => {
+  listener.getAddrs = () => {
     const multiaddrs = []
     const address = server.address()
 
     if (!address) {
-      return callback(new Error('Listener is not ready yet'))
+      throw new Error('Listener is not ready yet')
     }
 
     // Because TCP will only return the IPv6 version
@@ -125,7 +136,7 @@ module.exports = (handler) => {
       multiaddrs.push(ma)
     }
 
-    callback(null, multiaddrs)
+    return multiaddrs
   }
 
   return listener
@@ -133,7 +144,7 @@ module.exports = (handler) => {
 
 function getIpfsId (ma) {
   return ma.stringTuples().filter((tuple) => {
-    return tuple[0] === IPFS_CODE
+    return tuple[0] === c.IPFS_MA_CODE
   })[0][1]
 }
 
@@ -141,7 +152,7 @@ function trackSocket (server, socket) {
   const key = `${socket.remoteAddress}:${socket.remotePort}`
   server.__connections[key] = socket
 
-  socket.on('close', () => {
+  socket.once('close', () => {
     delete server.__connections[key]
   })
 }

src/socket.js

@@ -0,0 +1,85 @@
+'use strict'
+
+const abortable = require('abortable-iterator')
+const debug = require('debug')
+const log = debug('libp2p:tcp:socket')
+
+const c = require('./constants')
+
+class Libp2pSocket {
+  constructor (rawSocket, ma, opts = {}) {
+    this._rawSocket = rawSocket
+    this._ma = ma
+
+    this.sink = this._sink(opts)
+    this.source = opts.signal ? abortable(rawSocket, opts.signal) : rawSocket
+  }
+
+  _sink (opts) {
+    // By default, close when the source is exhausted
+    const closeOnEnd = opts.closeOnEnd !== false
+
+    return async (source) => {
+      try {
+        const src = opts.signal ? abortable(source, opts.signal) : source
+        await this._write(src, closeOnEnd)
+      } catch (err) {
+        // If the connection is aborted just close the socket
+        if (err.type === 'aborted') {
+          return this.close()
+        }
+
+        throw err
+      }
+    }
+  }
+
+  async _write (source, closeOnEnd) {
+    for await (const data of source) {
+      if (this._rawSocket.destroyed) {
+        const cOpts = this._ma.toOptions()
+        throw new Error('Cannot write %d bytes to destroyed socket %s:%s',
+          data.length, cOpts.host, cOpts.port)
+      }
+
+      const flushed = this._rawSocket.write(data)
+      if (!flushed) {
+        await new Promise((resolve) => this._rawSocket.once('drain', resolve))
+      }
+    }
+
+    if (closeOnEnd) {
+      await this.close()
+    }
+  }
+
+  close (opts = {}) {
+    if (this._rawSocket.pending || this._rawSocket.destroyed) {
+      return
+    }
+
+    return new Promise((resolve, reject) => {
+      const start = Date.now()
+
+      // Attempt to end the socket. If it takes longer to close than the
+      // timeout, destroy it manually.
+      const timeout = setTimeout(() => {
+        const cOpts = this._ma.toOptions()
+        log('Timeout closing socket to %s:%s after %dms, destroying it manually',
+          cOpts.host, cOpts.port, Date.now() - start)
+        this._rawSocket.destroy()
+        resolve()
+      }, opts.timeout || c.CLOSE_TIMEOUT)
+
+      this._rawSocket.once('close', () => clearTimeout(timeout))
+
+      this._rawSocket.end((err) => err ? reject(err) : resolve())
+    })
+  }
+
+  getObservedAddrs () {
+    return [this._ma]
+  }
+}
+
+module.exports = Libp2pSocket

test/adapter/connection-wrap.spec.js

@@ -6,7 +6,7 @@ const chai = require('chai')
 const dirtyChai = require('dirty-chai')
 const expect = chai.expect
 chai.use(dirtyChai)
-const TCP = require('../src')
+const TCP = require('../../src/adapter')
 const multiaddr = require('multiaddr')
 const Connection = require('interface-connection').Connection
 
@@ -89,7 +89,7 @@ describe('Connection Wrap', () => {
   })
 
   it('dial error', (done) => {
-    tcp.dial(multiaddr('/ip4/999.0.0.1/tcp/1234'), (err) => {
+    tcp.dial(multiaddr('/ip4/127.0.0.1/tcp/22234'), (err) => {
       expect(err).to.exist()
       done()
     })

test/adapter/connection.spec.js

@@ -0,0 +1,111 @@
+/* eslint-env mocha */
+'use strict'
+
+const pull = require('pull-stream')
+const chai = require('chai')
+const dirtyChai = require('dirty-chai')
+const expect = chai.expect
+chai.use(dirtyChai)
+const TCP = require('../../src/adapter')
+const multiaddr = require('multiaddr')
+
+describe('valid Connection', () => {
+  let tcp
+
+  beforeEach(() => {
+    tcp = new TCP()
+  })
+
+  const ma = multiaddr('/ip4/127.0.0.1/tcp/9090')
+
+  it('get observed addrs', (done) => {
+    let dialerObsAddrs
+
+    const listener = tcp.createListener((conn) => {
+      expect(conn).to.exist()
+      conn.getObservedAddrs((err, addrs) => {
+        expect(err).to.not.exist()
+        dialerObsAddrs = addrs
+        pull(pull.empty(), conn)
+      })
+    })
+
+    listener.listen(ma, () => {
+      const conn = tcp.dial(ma)
+      pull(
+        conn,
+        pull.onEnd(endHandler)
+      )
+
+      function endHandler () {
+        conn.getObservedAddrs((err, addrs) => {
+          expect(err).to.not.exist()
+          pull(pull.empty(), conn)
+          closeAndAssert(listener, addrs)
+        })
+      }
+
+      function closeAndAssert (listener, addrs) {
+        listener.close(() => {
+          expect(addrs[0]).to.deep.equal(ma)
+          expect(dialerObsAddrs.length).to.equal(1)
+          done()
+        })
+      }
+    })
+  })
+
+  it('get Peer Info', (done) => {
+    const listener = tcp.createListener((conn) => {
+      expect(conn).to.exist()
+      conn.getPeerInfo((err, peerInfo) => {
+        expect(err).to.exist()
+        expect(peerInfo).to.not.exist()
+        pull(pull.empty(), conn)
+      })
+    })
+
+    listener.listen(ma, () => {
+      const conn = tcp.dial(ma)
+
+      pull(conn, pull.onEnd(endHandler))
+
+      function endHandler () {
+        conn.getPeerInfo((err, peerInfo) => {
+          expect(err).to.exist()
+          expect(peerInfo).to.not.exist()
+
+          listener.close(done)
+        })
+      }
+    })
+  })
+
+  it('set Peer Info', (done) => {
+    const listener = tcp.createListener((conn) => {
+      expect(conn).to.exist()
+      conn.setPeerInfo('batatas')
+      conn.getPeerInfo((err, peerInfo) => {
+        expect(err).to.not.exist()
+        expect(peerInfo).to.equal('batatas')
+        pull(pull.empty(), conn)
+      })
+    })
+
+    listener.listen(ma, () => {
+      const conn = tcp.dial(ma)
+
+      pull(conn, pull.onEnd(endHandler))
+
+      function endHandler () {
+        conn.setPeerInfo('arroz')
+        conn.getPeerInfo((err, peerInfo) => {
+          expect(err).to.not.exist()
+          expect(peerInfo).to.equal('arroz')
+
+          listener.close(done)
+        })
+      }
+    })
+  })
+})

test/adapter/listen-dial.spec.js

@@ -6,7 +6,7 @@ const chai = require('chai')
 const dirtyChai = require('dirty-chai')
 const expect = chai.expect
 chai.use(dirtyChai)
-const TCP = require('../src')
+const TCP = require('../../src/adapter')
 const net = require('net')
 const multiaddr = require('multiaddr')
 const isCI = process.env.CI
@@ -194,10 +194,9 @@ describe('dial', () => {
     })
   })
 
-  // TODO: figure out why is this failing
+  it('dial and destroy on listener', (done) => {
-  it.skip('dial and destroy on listener', (done) => {
     let count = 0
-    const closed = ++count === 2 ? finish() : null
+    const closed = () => ++count === 2 ? finish() : null
 
     const ma = multiaddr('/ip6/::/tcp/9067')
 

test/compliance.spec.js

@@ -1,23 +1,43 @@
 /* eslint-env mocha */
 'use strict'
 
+const sinon = require('sinon')
 const tests = require('interface-transport')
 const multiaddr = require('multiaddr')
-const Tcp = require('../src')
+const net = require('net')
+const TCP = require('../src')
 
 describe('interface-transport compliance', () => {
   tests({
-    setup (cb) {
+    setup () {
-      let tcp = new Tcp()
+      const tcp = new TCP()
       const addrs = [
         multiaddr('/ip4/127.0.0.1/tcp/9091'),
         multiaddr('/ip4/127.0.0.1/tcp/9092'),
-        multiaddr('/ip4/127.0.0.1/tcp/9093')
+        multiaddr('/ip4/127.0.0.1/tcp/9093'),
+        multiaddr('/dns4/ipfs.io')
       ]
-      cb(null, tcp, addrs)
+
-    },
+      // Used by the dial tests to simulate a delayed connect
-    teardown (cb) {
+      const connector = {
-      cb()
+        delay (delayMs) {
+          const netConnect = net.connect
+          sinon.replace(net, 'connect', (opts) => {
+            const socket = netConnect(opts)
+            const socketEmit = socket.emit.bind(socket)
+            sinon.replace(socket, 'emit', (...args) => {
+              const time = args[0] === 'connect' ? delayMs : 0
+              setTimeout(() => socketEmit(...args), time)
+            })
+            return socket
+          })
+        },
+        restore () {
+          sinon.restore()
+        }
+      }
+
+      return { transport: tcp, addrs, connector }
     }
   })
 })

test/connection.spec.js

@@ -1,7 +1,6 @@
 /* eslint-env mocha */
 'use strict'
 
-const pull = require('pull-stream')
 const chai = require('chai')
 const dirtyChai = require('dirty-chai')
 const expect = chai.expect
@@ -18,94 +17,39 @@ describe('valid Connection', () => {
 
   const ma = multiaddr('/ip4/127.0.0.1/tcp/9090')
 
-  it('get observed addrs', (done) => {
+  it('get observed addrs', async () => {
-    let dialerObsAddrs
+    // Create a Promise that resolves when a connection is handled
+    let handled
+    const handlerPromise = new Promise((resolve) => {
+      handled = resolve
+    })
 
-    const listener = tcp.createListener((conn) => {
+    const handler = async (conn) => {
       expect(conn).to.exist()
-      conn.getObservedAddrs((err, addrs) => {
+      const dialerObsAddrs = await conn.getObservedAddrs()
-        expect(err).to.not.exist()
+      handled(dialerObsAddrs)
-        dialerObsAddrs = addrs
+    }
-        pull(pull.empty(), conn)
-      })
-    })
 
-    listener.listen(ma, () => {
+    // Create a listener with the handler
-      const conn = tcp.dial(ma)
+    const listener = tcp.createListener(handler)
-      pull(
-        conn,
-        pull.onEnd(endHandler)
-      )
 
-      function endHandler () {
+    // Listen on the multi-address
-        conn.getObservedAddrs((err, addrs) => {
+    await listener.listen(ma)
-          expect(err).to.not.exist()
-          pull(pull.empty(), conn)
-          closeAndAssert(listener, addrs)
-        })
-      }
 
-      function closeAndAssert (listener, addrs) {
+    // Dial to that same address
-        listener.close(() => {
+    const conn = await tcp.dial(ma)
-          expect(addrs[0]).to.deep.equal(ma)
+    const addrs = await conn.getObservedAddrs()
-          expect(dialerObsAddrs.length).to.equal(1)
-          done()
-        })
-      }
-    })
-  })
 
-  it('get Peer Info', (done) => {
+    // Wait for the incoming dial to be handled
-    const listener = tcp.createListener((conn) => {
+    const dialerObsAddrs = await handlerPromise
-      expect(conn).to.exist()
-      conn.getPeerInfo((err, peerInfo) => {
-        expect(err).to.exist()
-        expect(peerInfo).to.not.exist()
-        pull(pull.empty(), conn)
-      })
-    })
 
-    listener.listen(ma, () => {
+    // Close the listener
-      const conn = tcp.dial(ma)
+    await listener.close()
 
-      pull(conn, pull.onEnd(endHandler))
+    // The addresses should match
-
+    expect(addrs.length).to.equal(1)
-      function endHandler () {
+    expect(addrs[0]).to.deep.equal(ma)
-        conn.getPeerInfo((err, peerInfo) => {
+    expect(dialerObsAddrs.length).to.equal(1)
-          expect(err).to.exist()
+    expect(dialerObsAddrs[0]).to.exist()
-          expect(peerInfo).to.not.exist()
-
-          listener.close(done)
-        })
-      }
-    })
-  })
-
-  it('set Peer Info', (done) => {
-    const listener = tcp.createListener((conn) => {
-      expect(conn).to.exist()
-      conn.setPeerInfo('batatas')
-      conn.getPeerInfo((err, peerInfo) => {
-        expect(err).to.not.exist()
-        expect(peerInfo).to.equal('batatas')
-        pull(pull.empty(), conn)
-      })
-    })
-
-    listener.listen(ma, () => {
-      const conn = tcp.dial(ma)
-
-      pull(conn, pull.onEnd(endHandler))
-
-      function endHandler () {
-        conn.setPeerInfo('arroz')
-        conn.getPeerInfo((err, peerInfo) => {
-          expect(err).to.not.exist()
-          expect(peerInfo).to.equal('arroz')
-
-          listener.close(done)
-        })
-      }
-    })
   })
 })

test/filter.spec.js

@@ -9,6 +9,9 @@ const TCP = require('../src')
 const multiaddr = require('multiaddr')
 
 describe('filter addrs', () => {
+  const base = '/ip4/127.0.0.1'
+  const ipfs = '/ipfs/Qmb6owHp6eaWArVbcJJbQSyifyJBttMMjYV76N2hMbf5Vw'
+
   let tcp
 
   before(() => {
@@ -16,25 +19,26 @@ describe('filter addrs', () => {
   })
 
   it('filter valid addrs for this transport', () => {
-    const mh1 = multiaddr('/ip4/127.0.0.1/tcp/9090')
+    const ma1 = multiaddr(base + '/tcp/9090')
-    const mh2 = multiaddr('/ip4/127.0.0.1/udp/9090')
+    const ma2 = multiaddr(base + '/udp/9090')
-    const mh3 = multiaddr('/ip4/127.0.0.1/tcp/9090/http')
+    const ma3 = multiaddr(base + '/tcp/9090/http')
-    const mh4 = multiaddr('/ip4/127.0.0.1/tcp/9090/ipfs/Qmb6owHp6eaWArVbcJJbQSyifyJBttMMjYV76N2hMbf5Vw')
+    const ma4 = multiaddr(base + '/tcp/9090/ipfs/Qmb6owHp6eaWArVbcJJbQSyifyJBttMMjYV76N2hMbf5Vw')
-    const mh5 = multiaddr('/ip4/127.0.0.1/tcp/9090/http/ipfs/Qmb6owHp6eaWArVbcJJbQSyifyJBttMMjYV76N2hMbf5Vw')
+    const ma5 = multiaddr(base + '/tcp/9090/http' + ipfs)
-    const mh6 = multiaddr('/ip4/127.0.0.1/tcp/9090/ipfs/Qmb6owHp6eaWArVbcJJbQSyifyJBttMMjYV76N2hMbf5Vw' +
+    const ma6 = multiaddr('/ip4/127.0.0.1/tcp/9090/p2p-circuit' + ipfs)
-      '/p2p-circuit/ipfs/Qmb6owHp6eaWArVbcJJbQSyifyJBttMMjYV76N2hMbf5Vw')
+    const ma7 = multiaddr('/dns4/libp2p.io/tcp/9090')
+    const ma8 = multiaddr('/dnsaddr/libp2p.io/tcp/9090')
 
-    const valid = tcp.filter([mh1, mh2, mh3, mh4, mh5, mh6])
+    const valid = tcp.filter([ma1, ma2, ma3, ma4, ma5, ma6, ma7, ma8])
-    expect(valid.length).to.equal(2)
+    expect(valid.length).to.equal(4)
-    expect(valid[0]).to.deep.equal(mh1)
+    expect(valid[0]).to.deep.equal(ma1)
-    expect(valid[1]).to.deep.equal(mh4)
+    expect(valid[1]).to.deep.equal(ma4)
   })
 
   it('filter a single addr for this transport', () => {
-    const mh1 = multiaddr('/ip4/127.0.0.1/tcp/9090')
+    const ma1 = multiaddr(base + '/tcp/9090')
 
-    const valid = tcp.filter(mh1)
+    const valid = tcp.filter(ma1)
     expect(valid.length).to.equal(1)
-    expect(valid[0]).to.deep.equal(mh1)
+    expect(valid[0]).to.eql(ma1)
   })
 })

test/get-multiaddr.spec.js

@@ -0,0 +1,54 @@
+/* eslint-env mocha */
+'use strict'
+
+const chai = require('chai')
+const dirtyChai = require('dirty-chai')
+const expect = chai.expect
+chai.use(dirtyChai)
+const getMultiaddr = require('../src/get-multiaddr')
+
+const goodSocket4 = {
+  remoteAddress: '127.0.0.1',
+  remotePort: '9090',
+  remoteFamily: 'IPv4'
+}
+
+const goodSocket6 = {
+  remoteAddress: '::1',
+  remotePort: '9090',
+  remoteFamily: 'IPv6'
+}
+
+const badSocket = {}
+
+const badSocketData = {
+  remoteAddress: 'aewmrn4awoew',
+  remotePort: '234',
+  remoteFamily: 'Hufflepuff'
+}
+
+describe('getMultiaddr multiaddr creation', () => {
+  it('creates multiaddr from valid socket data', (done) => {
+    expect(getMultiaddr(goodSocket4))
+      .to.exist()
+    done()
+  })
+
+  it('creates multiaddr from valid IPv6 socket data', (done) => {
+    expect(getMultiaddr(goodSocket6))
+      .to.exist()
+    done()
+  })
+
+  it('returns undefined multiaddr from missing socket data', (done) => {
+    expect(getMultiaddr(badSocket))
+      .to.equal(undefined)
+    done()
+  })
+
+  it('returns undefined multiaddr from unparseable socket data', (done) => {
+    expect(getMultiaddr(badSocketData))
+      .to.equal(undefined)
+    done()
+  })
+})

test/listen-dial.spec.js

@@ -0,0 +1,241 @@
+/* eslint-env mocha */
+'use strict'
+
+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')
+const pipe = require('it-pipe')
+const { collect, map } = require('streaming-iterables')
+const isCI = process.env.CI
+
+describe('listen', () => {
+  let tcp
+
+  beforeEach(() => {
+    tcp = new TCP()
+  })
+
+  it('close listener with connections, through timeout', async () => {
+    const mh = multiaddr('/ip4/127.0.0.1/tcp/9090/ipfs/Qmb6owHp6eaWArVbcJJbQSyifyJBttMMjYV76N2hMbf5Vw')
+    const listener = tcp.createListener((conn) => {
+      pipe(conn, conn)
+    })
+
+    await listener.listen(mh)
+
+    const socket1 = net.connect(9090)
+    const socket2 = net.connect(9090)
+
+    socket1.write('Some data that is never handled')
+    socket1.end()
+    socket1.on('error', () => {})
+    socket2.on('error', () => {})
+
+    await new Promise((resolve) => {
+      socket1.on('connect', async () => {
+        await listener.close({ timeout: 100 })
+        resolve()
+      })
+    })
+  })
+
+  it('listen on port 0', async () => {
+    const mh = multiaddr('/ip4/127.0.0.1/tcp/0')
+    const listener = tcp.createListener((conn) => {})
+    await listener.listen(mh)
+    await listener.close()
+  })
+
+  it('listen on IPv6 addr', async () => {
+    if (isCI) {
+      return
+    }
+    const mh = multiaddr('/ip6/::/tcp/9090')
+    const listener = tcp.createListener((conn) => {})
+    await listener.listen(mh)
+    await listener.close()
+  })
+
+  it('listen on any Interface', async () => {
+    const mh = multiaddr('/ip4/0.0.0.0/tcp/9090')
+    const listener = tcp.createListener((conn) => {})
+    await listener.listen(mh)
+    await listener.close()
+  })
+
+  it('getAddrs', async () => {
+    const mh = multiaddr('/ip4/127.0.0.1/tcp/9090')
+    const listener = tcp.createListener((conn) => {})
+    await listener.listen(mh)
+
+    const multiaddrs = listener.getAddrs()
+    expect(multiaddrs.length).to.equal(1)
+    expect(multiaddrs[0]).to.deep.equal(mh)
+
+    await listener.close()
+  })
+
+  it('getAddrs on port 0 listen', async () => {
+    const mh = multiaddr('/ip4/127.0.0.1/tcp/0')
+    const listener = tcp.createListener((conn) => {})
+    await listener.listen(mh)
+
+    const multiaddrs = listener.getAddrs()
+    expect(multiaddrs.length).to.equal(1)
+
+    await listener.close()
+  })
+
+  it('getAddrs from listening on 0.0.0.0', async () => {
+    const mh = multiaddr('/ip4/0.0.0.0/tcp/9090')
+    const listener = tcp.createListener((conn) => {})
+    await listener.listen(mh)
+
+    const multiaddrs = listener.getAddrs()
+    expect(multiaddrs.length > 0).to.equal(true)
+    expect(multiaddrs[0].toString().indexOf('0.0.0.0')).to.equal(-1)
+
+    await listener.close()
+  })
+
+  it('getAddrs from listening on 0.0.0.0 and port 0', async () => {
+    const mh = multiaddr('/ip4/0.0.0.0/tcp/0')
+    const listener = tcp.createListener((conn) => {})
+    await listener.listen(mh)
+
+    const multiaddrs = listener.getAddrs()
+    expect(multiaddrs.length > 0).to.equal(true)
+    expect(multiaddrs[0].toString().indexOf('0.0.0.0')).to.equal(-1)
+
+    await listener.close()
+  })
+
+  it('getAddrs preserves IPFS Id', async () => {
+    const mh = multiaddr('/ip4/127.0.0.1/tcp/9090/ipfs/Qmb6owHp6eaWArVbcJJbQSyifyJBttMMjYV76N2hMbf5Vw')
+    const listener = tcp.createListener((conn) => {})
+    await listener.listen(mh)
+
+    const multiaddrs = listener.getAddrs()
+    expect(multiaddrs.length).to.equal(1)
+    expect(multiaddrs[0]).to.deep.equal(mh)
+
+    await listener.close()
+  })
+})
+
+describe('dial', () => {
+  let tcp
+  let listener
+  const ma = multiaddr('/ip4/127.0.0.1/tcp/9090')
+
+  beforeEach(async () => {
+    tcp = new TCP()
+    listener = tcp.createListener((conn) => {
+      pipe(
+        conn,
+        map((x) => Buffer.from(x.toString() + '!')),
+        conn
+      )
+    })
+    await listener.listen(ma)
+  })
+
+  afterEach(() => listener.close())
+
+  it('dial on IPv4', async () => {
+    const values = await pipe(
+      ['hey'],
+      await tcp.dial(ma),
+      collect
+    )
+    expect(values).to.eql([Buffer.from('hey!')])
+  })
+
+  it('dial on IPv6', async () => {
+    if (isCI) {
+      return
+    }
+
+    const ma = multiaddr('/ip6/::/tcp/9066')
+    const listener = tcp.createListener((conn) => {
+      pipe(conn, conn)
+    })
+    await listener.listen(ma)
+
+    const values = await pipe(
+      ['hey'],
+      await tcp.dial(ma),
+      collect
+    )
+    expect(values).to.be.eql([Buffer.from('hey')])
+
+    await listener.close()
+  })
+
+  it('dial and destroy on listener', async () => {
+    let handled
+    const handledPromise = new Promise((resolve) => {
+      handled = resolve
+    })
+
+    const ma = multiaddr('/ip6/::/tcp/0')
+
+    const listener = tcp.createListener(async (conn) => {
+      await pipe(
+        [],
+        conn
+      )
+      handled()
+    })
+
+    await listener.listen(ma)
+    const addrs = listener.getAddrs()
+    await pipe(await tcp.dial(addrs[0]))
+
+    await handledPromise
+    await listener.close()
+  })
+
+  it('dial and destroy on dialer', async () => {
+    if (isCI) {
+      return
+    }
+
+    let handled
+    const handledPromise = new Promise((resolve) => {
+      handled = resolve
+    })
+
+    const ma = multiaddr('/ip6/::/tcp/0')
+
+    const listener = tcp.createListener(async (conn) => {
+      // pull(conn, pull.onEnd(destroyed))
+      await pipe(conn)
+      handled()
+    })
+
+    await listener.listen(ma)
+    const addrs = listener.getAddrs()
+    await pipe(await tcp.dial(addrs[0]))
+
+    await handledPromise
+    await listener.close()
+  })
+
+  it('dial on IPv4 with IPFS Id', async () => {
+    const ma = multiaddr('/ip4/127.0.0.1/tcp/9090/ipfs/Qmb6owHp6eaWArVbcJJbQSyifyJBttMMjYV76N2hMbf5Vw')
+    const conn = await tcp.dial(ma)
+
+    const res = await pipe(
+      ['hey'],
+      conn,
+      collect
+    )
+    expect(res).to.be.eql([Buffer.from('hey!')])
+  })
+})