Merge release 0.2.0 from develop

according to the RFC the correct response to the NICK command then it's
changing a nickname is to send a NICK command to the user from the
original nickname.

This patch changes the behaviour and removes a duplicate declearation of
the function.

README.md

@@ -3,9 +3,26 @@ ircd-js
 
 A simple IRCd project to provide an IRCd.
 
+
+Installing dependencies
+===
+
+```bash
+# Installing docker on (latest) Ubuntu
+sudo apt-get install docker.io
+```
+
 Running
 ===
 
+Staring a NodeJS container:
+
+```bash
+docker run -v $PWD:/app --workdir /app -p 127.0.0.1:6667:6667 --rm -it node:10 /bin/bash
+```
+
+Commands to run inside the container:
+
 ```bash
 # Install all dev dependencies
 npm install
@@ -14,5 +31,5 @@ npm install
 npm test
 
 # Start the index.js
-npm start
+node index.js
 ```

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ircd",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "A project implementation of the IRC protocol",
   "main": "index.js",
   "scripts": {

src/channel.js

@@ -0,0 +1,32 @@
+function Channel(name) {
+  this.name = name
+  this.userlist = []
+
+  this.join = function(user) {
+    let channel = this
+    this.userlist.push(user)
+    this.userlist.forEach(function(item) {
+      item.sendRaw(`:${user.nickname} JOIN ${channel.name}`)
+    })
+  }
+
+  this.part = function(user) {
+      let channel = this
+      let userIndex = this.userlist.indexOf(user)
+      if (userIndex >= 0) {
+          this.userlist.forEach(function(item) {
+              item.sendRaw(`:${user.nickname} PART ${channel.name}`)
+          })
+          this.userlist.splice(index, 1)
+      }
+  }
+
+  this.sendMsg = function(from, message) {
+      const channel = this
+      this.userlist.forEach(function(item) {
+          item.sendMsg(from, message, channel.name)
+      })
+  }
+}
+
+module.exports = Channel

src/server.js

@@ -1,5 +1,6 @@
 const net = require("net")
 const User = require("../src/user.js")
+const Channel = require("../src/channel.js")
 
 const RPL_WELCOME = '001'
 const ERR_NOSUCHNICK = '401'
@@ -11,79 +12,111 @@ const ERR_NONICKNAMEGIVEN = '431'
 const ERR_NICKNAMEINUSE = '433'
 const ERR_NEEDMOREPARAMS = '461'
 
+
 let server = {}
 
-server.create = function create() {
+server.create = function create(config = {}) {
+    let password
+    if (config.password) {
+        password = config.password
+    }
     let userlist = {}
+    let channellist = {}
     let server = net.createServer((socket) => {
-        const user = new User(socket)
+        const user = new User(socket, !config.password)
         socket.on('data', function (data) {
             data.toString("ascii").split("\r\n").forEach(function (commandline) {
-              if (commandline == "") {
-                return
-              }
-              let splitted = commandline.split(" ")
-              let tokenized = []
-              let lastParam = -1
-              for (let i = 0; i < splitted.length; i++) {
-                  if (lastParam > 0) {
-                      tokenized[lastParam] = tokenized[lastParam] + " " + splitted[i]
-                  } else if (splitted[i].charAt(0) == ":" && i > 0) {
-                      lastParam = i
-                      tokenized[lastParam] = splitted[i].slice(1)
-                  } else {
-                      tokenized[i] = splitted[i]
-                  }
-              }
-              let command = tokenized[0].toUpperCase()
-              switch (command) {
-                  case  "PING":
-                      if (tokenized[1] && tokenized[1] === "irc.example.com") {
-                          socket.write("PONG irc.example.com\r\n")
-                      }
-                      break;
-                  case "NICK":
-                      if (tokenized[1]) {
-                          let nickname = tokenized[1]
-                          // nick collision test
-                          if (!Object.keys(userlist).includes(nickname)) {
-                              user.setNickname(nickname)
-                              userlist[user.nickname] = user
-                          } else {
-                              socket.write(ERR_NICKNAMEINUSE, " nickname in use")
-                          }
-
-
-                      } else {
-                          socket.write(ERR_NONICKNAMEGIVEN, "ERROR: NO NICKNAME PROVIDED")
-                      }
-
-                      break;
-
-                  case "USER":
-                      // ignoring servername and hostname, not useful these days
-                      user.register(tokenized[1], tokenized[4])
-                      let address = user.getAddress()
-                      socket.write(`:irc.example.com 001 ${user.nickname} :Welcome to the example IRC Project ${user.nickname}!~${user.username}@${address}\r\n`, "ascii")
-                      break;
-                  case "PRIVMSG":
-                      let target = userlist[tokenized[1]]
-                      let message = tokenized[2]
-
-                    target.sendMsg(user, message)
-                    break;
-                  case "QUIT":
-                    server.closeConnection(user.nickname)
-                    break;
-                  case "PASS":
-                    if (tokenized[1])
-                        user.setPassword(tokenized[1])
-                    break;
-
-                  default:
-                    console.error(`Unknown command: ${command}`);
-            }
-          });
+                if (commandline == "") {
+                    return
+                }
+                let splitted = commandline.split(" ")
+                let tokenized = []
+                let lastParam = -1
+                for (let i = 0; i < splitted.length; i++) {
+                    if (lastParam > 0) {
+                        tokenized[lastParam] = tokenized[lastParam] + " " + splitted[i]
+                    } else if (splitted[i].charAt(0) == ":" && i > 0) {
+                        lastParam = i
+                        tokenized[lastParam] = splitted[i].slice(1)
+                    } else {
+                        tokenized[i] = splitted[i]
+                    }
+                }
+                let command = tokenized[0].toUpperCase()
+                switch (command) {
+                    case  "PING":
+                        if (tokenized[1] && tokenized[1] === "irc.example.com") {
+                            socket.write("PONG irc.example.com\r\n")
+                        }
+                        break;
+                    case "NICK":
+                        if (tokenized[1]) {
+                            let nickname = tokenized[1]
+                            // nick collision test
+                            if (!Object.keys(userlist).includes(nickname)) {
+                                user.setNickname(nickname)
+                                userlist[user.nickname] = user
+                            } else {
+                                socket.write(`:irc.example.com ${ERR_NICKNAMEINUSE} ${nickname} :Nickname is already in use`, 'ascii')
+                            }
+
+
+                        } else {
+                            socket.write(`:irc.example.com ${ERR_NONICKNAMEGIVEN} :No nickname given`, 'ascii')
+                        }
+
+                        break;
+
+                    case "USER":
+                        // ignoring servername and hostname, not useful these days
+                        user.register(tokenized[1], tokenized[4])
+                        let address = user.getAddress()
+                        socket.write(`:irc.example.com 001 ${user.nickname} :Welcome to the example IRC Project ${user.nickname}!~${user.username}@${address}\r\n`, "ascii")
+                        break;
+                    case "PRIVMSG":
+                        let target
+                        let message = tokenized[2]
+                        if (typeof tokenized[1] === 'string' && tokenized[1].charAt(0) === "#") {
+                            target = channellist[tokenized[1]]
+                        } else {
+                            let targetUser = userlist[tokenized[1]]
+                            if (targetUser && targetUser.registered) {
+                                target = targetUser
+                            }
+                        }
+                        if (target) {
+                            target.sendMsg(user, message)
+                        } else {
+                            user.sendRaw(`:irc.example.com ${ERR_NOSUCHNICK} ${target} no such nick/channel`)
+                        }
+
+                        break;
+                    case "JOIN":
+                        let channelname = tokenized[1]
+                        if (Object.keys(channellist).includes(channelname)) {
+                          channellist[channelname].join(user)
+                        } else {
+                          let channel = new Channel(channelname)
+                          channel.join(user)
+                          channellist[channelname] = channel
+                        }
+
+                        break;
+                    case "QUIT":
+                        server.closeConnection(user.nickname)
+                        break;
+                    case "PASS":
+                        if (tokenized[1] === config.password) {
+                            user.authenticated = true
+                        } else {
+                            user.closeConnection()
+                        }
+                        break;
+
+                    default:
+                        console.error(`Unknown command: ${command}`);
+                }
+            });
         }).on('error', (err) => {
             console.error(err);
         })

src/user.js

@@ -1,22 +1,26 @@
-function User(socket) {
+function User(socket, authenticatedDefault) {
   this.registered = false
-  this.nickname = ""
+  this.authenticated = authenticatedDefault
+  this.nickname = undefined
   this.connection = socket
   this.realname = ""
   this.username = ""
 
   this.setNickname = function(nickname) {
+    if (this.nickname !== undefined) {
+      this.sendRaw(`:${this.nickname} NICK ${nickname}`)
+    }
     this.nickname = nickname
   }
 
   this.getNickname = function(nickname) {
     return this.nickname
   }
-  this.setPassword = function (password) {
-    this.password = password
-  }
 
   this.register = function(username, realname) {
+    if (!this.authenticated) {
+      this.connection.destroy()
+    }
     this.username = username
     this.realname = realname
     this.registered = true
@@ -25,20 +29,17 @@ function User(socket) {
   this.getAddress = function() {
     return this.connection.address().address
   }
-    this.setNickname = function (nickname) {
-        this.nickname = nickname
-    }
-    this.setRealName = function (realname) {
-        this.realname = realname
-    }
 
     this.closeConnection = function () {
-        socket.destroy()
+        this.connection.destroy()
     }
 
 
-    this.sendMsg = function (from, message) {
-        this.connection.write(`:${from.nickname} PRIVMSG ${this.nickname} :${message}\r\n`, "ascii")
+    this.sendMsg = function (from, message, to = this.nickname) {
+        this.sendRaw(`:${from.nickname} PRIVMSG ${to} :${message}`, "ascii")
+    }
+    this.sendRaw = function(message) {
+      this.connection.write(`${message}\r\n`, "ascii")
     }
 }
 

test/channel.js

@@ -0,0 +1,58 @@
+const assert = require('assert');
+const Channel = require("../src/channel.js");
+
+describe('Channel', function () {
+    describe('#contructor()', function () {
+        it("should create a channel", function () {
+            const channel = new Channel("#testchan")
+            assert.equal(typeof channel, 'object')
+        })
+    })
+
+    describe('#join(user)', function () {
+        it("should add the user to a channel and send a JOIN command to the user", function (done) {
+            const channel = new Channel("#testchan")
+            let mockedUser = {nickname: "some_nick"}
+            mockedUser.sendRaw = function(data) {
+                assert.equal(data, ":some_nick JOIN #testchan")
+                done()
+            }
+            channel.join(mockedUser)
+        })
+    })
+
+    describe('#part(user)', function () {
+        it("should remove a user from a channel and send a PART command to the user", function (done) {
+            const channel = new Channel("#testchan")
+            let mockedUser = {nickname: "some_nick"}
+            mockedUser.sendRaw = function(data) {
+                // we expect a PART message from our user to the channel (including us)
+                if (data.indexOf("PART") >= 0) {
+                    assert.equal(data, ":some_nick PART #testchan")
+                    done()
+                }
+            }
+            // we can't part a channel without joining it first
+            channel.join(mockedUser)
+
+            channel.part(mockedUser)
+        })
+    })
+
+    describe('#sendMsg(from, message)', function () {
+        it("should remove a user from a channel and send a PART command to the user", function (done) {
+            const channel = new Channel("#testchan")
+            let mockedUser = {nickname: "some_nick", sendRaw: function() {}}
+            mockedUser.sendMsg = function(from, message, to) {
+                assert.equal(from, mockedUser)
+                assert.equal(message, "test message")
+                assert.equal(to, "#testchan")
+                done()
+            }
+            // we can't part a channel without joining it first
+            channel.join(mockedUser)
+
+            channel.sendMsg(mockedUser, "test message")
+        })
+    })
+})

test/command_join.js

@@ -0,0 +1,72 @@
+const assert = require('assert');
+const EventEmitter = require('events');
+const IRCServer = require("../src/server.js");
+
+describe("JOIN OK", function () {
+    it("should handle a JOIN command -> JOIN #testchan", function (done) {
+        const server = IRCServer.create()
+        let mockedSock = new EventEmitter()
+        mockedSock.address = function () {
+            return {port: 12346, family: 'IPv4', address: '127.0.0.1'}
+        }
+        mockedSock.write = function (data) {
+            let answer = data.toString("ascii")
+            if (answer.indexOf("JOIN") >= 0) {
+                assert.equal(answer, ":some_nick JOIN #testchan\r\n")
+                done()
+            }
+        }
+        mockedSock.destroy = function () {
+            done("Destroyed socket without answering")
+        }
+
+        server.emit("connection", mockedSock)
+        mockedSock.emit('data', Buffer.from("NICK some_nick\r\n", "ascii"))
+        mockedSock.emit('data', Buffer.from("USER guest tolmoon tolsun :Ronnie Reagan\r\n", "ascii"))
+        mockedSock.emit('data', Buffer.from("JOIN #testchan\r\n", "ascii"))
+    })
+
+    it("should handle a JOIN command for more than one user -> JOIN #testchan and send join events to all channel members", function (done) {
+        const server = IRCServer.create()
+        // helper to count join messages for channel
+        // we should see 2 of them
+        let counter = 0
+        let mockedSock1 = new EventEmitter()
+        mockedSock1.address = function () {
+            return {port: 12346, family: 'IPv4', address: '127.0.0.1'}
+        }
+        mockedSock1.write = function (data) {
+            let answer = data.toString("ascii")
+            if (answer.indexOf("JOIN") >= 0 && counter === 1) {
+                assert.equal(answer, ":other_nick JOIN #testchan\r\n")
+                done()
+            }
+            if (answer === ":some_nick JOIN #testchan\r\n") {
+              counter++
+            }
+        }
+        mockedSock1.destroy = function () {
+            done("Destroyed socket without answering")
+        }
+
+        let mockedSock2 = new EventEmitter()
+        mockedSock2.address = function () {
+            return {port: 12346, family: 'IPv4', address: '127.0.0.1'}
+        }
+        mockedSock2.write = function (data) {
+            return
+        }
+        mockedSock2.destroy = function () {
+            done("Destroyed socket without answering")
+        }
+
+        server.emit("connection", mockedSock1)
+        server.emit("connection", mockedSock2)
+        mockedSock1.emit('data', Buffer.from("NICK some_nick\r\n", "ascii"))
+        mockedSock1.emit('data', Buffer.from("USER guest tolmoon tolsun :Ronnie Reagan\r\n", "ascii"))
+        mockedSock1.emit('data', Buffer.from("JOIN #testchan\r\n", "ascii"))
+        mockedSock2.emit('data', Buffer.from("NICK other_nick\r\n", "ascii"))
+        mockedSock2.emit('data', Buffer.from("USER guest tolmoon tolsun :Ronnie Reagan\r\n", "ascii"))
+        mockedSock2.emit('data', Buffer.from("JOIN #testchan\r\n", "ascii"))
+    })
+})

test/command_nick.js

@@ -31,7 +31,7 @@ describe("NICK already registered", function () {
         }
         let mockedSock2 = new EventEmitter()
         mockedSock2.write = function (data) {
-            assert.equal(data.toString("ascii"), "433")
+            assert.equal(data.toString("ascii"), ":irc.example.com 433 some_nick :Nickname is already in use")
             done()
         }
         mockedSock2.destroy = function () {
@@ -49,7 +49,7 @@ describe("NICK no NICK given", function () {
         const server = IRCServer.create()
         let mockedSock = new EventEmitter()
         mockedSock.write = function (data) {
-            assert.equal(data.toString("ascii"), "431")
+            assert.equal(data.toString("ascii"), ":irc.example.com 431 :No nickname given")
             done()
         }
         mockedSock.destroy = function () {

test/command_pass.js

@@ -4,21 +4,54 @@ const IRCServer = require("../src/server.js");
 
 describe("PASS OK", function () {
     it("should handle a PASS command -> PASS some_passwd", function (done) {
-        const server = IRCServer.create()
+        const server = IRCServer.create({
+          password: "itsJustATest"
+        })
         let mockedSock = new EventEmitter()
 
+        mockedSock.address = function() {
+          return { port: 12346, family: 'IPv4', address: '127.0.0.1' }
+        }
+
+        mockedSock.write = function (data) {
+            return
+        }
 
         mockedSock.destroy = function () {
             done("Destroyed socket without answering")
         }
 
         server.emit("connection", mockedSock)
-        mockedSock.emit('data', Buffer.from("PASS some_pass\r\n", "ascii"))
+        mockedSock.emit('data', Buffer.from("PASS itsJustATest\r\n", "ascii"))
         mockedSock.emit('data', Buffer.from("NICK some_nick\r\n", "ascii"))
+        mockedSock.emit('data', Buffer.from("USER guest tolmoon tolsun :Ronnie Reagan\r\n", "ascii"))
 
         user = server.getUserlist()["some_nick"]
-        assert.equal("some_pass", user["password"])
+        assert.equal(user["registered"], true)
         done()
+    })
+
+    it("should end connection on wrong password", function (done) {
+        const server = IRCServer.create({
+          password: "itsJustATest"
+        })
+        let mockedSock = new EventEmitter()
+
+        mockedSock.address = function() {
+          return { port: 12346, family: 'IPv4', address: '127.0.0.1' }
+        }
+
+        mockedSock.write = function (data) {
+            return
+        }
+
+        mockedSock.destroy = function () {
+            // connection has to be destroyed
+            done("")
+        }
+
+        server.emit("connection", mockedSock)
+        mockedSock.emit('data', Buffer.from("PASS wrongpassword\r\n", "ascii"))
 
     })
 })

test/command_privmsg.js

@@ -29,8 +29,8 @@ describe("PRIVMSG OK", function () {
     it("should handle a PRIVMSG command for multiple users -> PRIVMSG other_nick :I'm a message", function (done) {
         const server = IRCServer.create()
         let mockedSock1 = new EventEmitter()
-        mockedSock1.address = function() {
-          return { port: 12346, family: 'IPv4', address: '127.0.0.1' }
+        mockedSock1.address = function () {
+            return {port: 12346, family: 'IPv4', address: '127.0.0.1'}
         }
         mockedSock1.write = function (data) {
             return
@@ -39,15 +39,15 @@ describe("PRIVMSG OK", function () {
             done("Destroyed socket without answering")
         }
         let mockedSock2 = new EventEmitter()
-        mockedSock2.address = function() {
-          return { port: 12346, family: 'IPv4', address: '127.0.0.1' }
+        mockedSock2.address = function () {
+            return {port: 12346, family: 'IPv4', address: '127.0.0.1'}
         }
         mockedSock2.write = function (data) {
-          let answer = data.toString("ascii")
-          if (answer.indexOf("PRIVMSG") >= 0) {
-            assert.equal(answer, ":some_nick PRIVMSG other_nick :I'm a message\r\n")
-            done()
-          }
+            let answer = data.toString("ascii")
+            if (answer.indexOf("PRIVMSG") >= 0) {
+                assert.equal(answer, ":some_nick PRIVMSG other_nick :I'm a message\r\n")
+                done()
+            }
         }
         mockedSock2.destroy = function () {
             done("Destroyed socket without answering")
@@ -62,4 +62,67 @@ describe("PRIVMSG OK", function () {
 
         mockedSock1.emit('data', Buffer.from("PRIVMSG other_nick :I'm a message\r\n", "ascii"))
     })
+    it("dont send message to unregistered user", function (done) {
+        const server = IRCServer.create()
+        let mockedSock1 = new EventEmitter()
+        mockedSock1.address = function () {
+            return {port: 12346, family: 'IPv4', address: '127.0.0.1'}
+        }
+        mockedSock1.write = function (data) {
+            answer = data.toString('ascii')
+            if (answer.indexOf("401")>=0) {
+                assert.equal(answer, ":irc.example.com 401 some_nick no such nick/channel")
+            }
+            done()
+        }
+        mockedSock1.destroy = function () {
+            done("Destroyed socket without answering")
+        }
+        let mockedSock2 = new EventEmitter()
+        mockedSock2.address = function () {
+            return {port: 12346, family: 'IPv4', address: '127.0.0.1'}
+        }
+        mockedSock2.write = function (data) {
+            let answer = data.toString("ascii")
+            if (answer.indexOf("PRIVMSG") >= 0) {
+                assert.equal(answer, ":some_nick PRIVMSG other_nick :I'm a message\r\n")
+                done("I got a message that I shouldn't have seen")
+            }
+        }
+        mockedSock2.destroy = function () {
+            done("Destroyed socket without answering")
+        }
+
+        server.emit("connection", mockedSock1)
+        server.emit("connection", mockedSock2)
+        mockedSock1.emit('data', Buffer.from("NICK some_nick\r\n", "ascii"))
+        mockedSock1.emit('data', Buffer.from("USER guest tolmoon tolsun :Ronnie Reagan\r\n", "ascii"))
+        mockedSock2.emit('data', Buffer.from("NICK other_nick\r\n", "ascii"))
+
+        mockedSock1.emit('data', Buffer.from("PRIVMSG other_nick :I'm a message\r\n", "ascii"))
+    })
+
+    it("should allow to send message to channel -> PRIVMSG #testchan :I'm a message", function (done) {
+        const server = IRCServer.create()
+        let mockedSock = new EventEmitter()
+        mockedSock.address = function () {
+            return {port: 12346, family: 'IPv4', address: '127.0.0.1'}
+        }
+        mockedSock.write = function (data) {
+            let answer = data.toString("ascii")
+            if (answer.indexOf("PRIVMSG") >= 0) {
+                assert.equal(answer, ":some_nick PRIVMSG #testchan :I'm a message\r\n")
+                done()
+            }
+        }
+        mockedSock.destroy = function () {
+            done("Destroyed socket without answering")
+        }
+
+        server.emit("connection", mockedSock)
+        mockedSock.emit('data', Buffer.from("NICK some_nick\r\n", "ascii"))
+        mockedSock.emit('data', Buffer.from("USER guest tolmoon tolsun :Ronnie Reagan\r\n", "ascii"))
+        mockedSock.emit('data', Buffer.from("JOIN #testchan\r\n", "ascii"))
+        mockedSock.emit('data', Buffer.from("PRIVMSG #testchan :I'm a message\r\n", "ascii"))
+    })
 })

test/command_quit.js

@@ -11,6 +11,7 @@ describe("QUIT OK", function () {
             let mockedSock = new EventEmitter()
 
             mockedSock.write = function (data) {
+                done("ERROR: did not expect a message")
             }
 
             server.emit('connection', mockedSock)

test/user.js

@@ -0,0 +1,84 @@
+const assert = require('assert');
+const User = require("../src/user.js");
+
+describe('User', function () {
+    describe('#contructor()', function () {
+        it("should create a user while no password is required", function () {
+            let mockedSock = {}
+            const user = new User(mockedSock, true)
+            assert.equal(typeof user, 'object')
+        })
+
+        it("should create a user while password is required", function () {
+            let mockedSock = {}
+            const user = new User(mockedSock, false)
+            assert.equal(typeof user, 'object')
+        })
+    })
+
+    describe('#sendMsg(from, message, to)', function() {
+        it("should send a message to the user's socket with the user himself as target", function (done) {
+            let mockedSock = {write: function (data) {
+                assert.equal(data, ":some_nick PRIVMSG some_nick :test message\r\n")
+                done()
+            }}
+            const user = new User(mockedSock, true)
+            user.setNickname("some_nick")
+            user.register("some_nick")
+            user.sendMsg(user, "test message")
+        })
+
+        it("should send a message to the user's socket with a different target", function (done) {
+            let mockedSock = {write: function (data) {
+                assert.equal(data, ":some_nick PRIVMSG #testchan :test message\r\n")
+                done()
+            }}
+            const user = new User(mockedSock, true)
+            user.setNickname("some_nick")
+            user.register("some_nick")
+            user.sendMsg(user, "test message", "#testchan")
+        })
+    })
+
+    describe('#sendRaw(message)', function() {
+        it("should send a raw command to the user's socket", function(done) {
+            let mockedSock = {write: function (data) {
+                assert.equal(data, ":irc.example.com TEST this :command with parameters\r\n")
+                done()
+            }}
+            const user = new User(mockedSock, true)
+            user.setNickname("some_nick")
+            user.register("some_nick")
+            user.sendRaw(":irc.example.com TEST this :command with parameters")
+        })
+    })
+
+    describe('#closeConnection()', function() {
+        it("should call destroy on user's socket", function(done) {
+            let mockedSock = {destroy: function () {
+                done()
+            }}
+            const user = new User(mockedSock, true)
+            user.closeConnection()
+        })
+    })
+
+    describe('#setNickname(nickname)', function() {
+        it('should not answer on inital setting of nickname', function () {
+            let mockedSock = {}
+            const user = new User(mockedSock, true)
+            user.setNickname("some_nick")
+            assert.equal(user.getNickname(), "some_nick")
+        })
+
+        it('should answer with NICK message from original nick on rename', function (done) {
+            let mockedSock = {write: function (data) {
+                assert.equal(data, ":some_nick NICK changed_nick\r\n")
+                done()
+            }}
+            const user = new User(mockedSock, true)
+            user.setNickname("some_nick")
+            user.setNickname("changed_nick")
+        })
+    })
+})