diff --git a/package.json b/package.json
index 5807008b9..feccc807c 100644
--- a/package.json
+++ b/package.json
@@ -6,9 +6,9 @@
   "license": "AGPL-3.0",
   "scripts": {
     "test": "npm run-script eslint && npm run-script jsonlint && npm run-script mocha-suite",
-    "eslint": "node_modules/.bin/eslint --max-warnings 0 src",
+    "eslint": "node_modules/.bin/eslint --ext .ts,.js --max-warnings 0 src",
     "jsonlint": "find . -not -path './node_modules/*' -type f -name '*.json' -o -type f -name '*.json.example' | while read json; do echo $json ; jq . $json; done",
-    "mocha-suite": "NODE_ENV=test CMD_DB_URL=\"sqlite::memory:\" mocha --exit",
+    "mocha-suite": "tsc && NODE_ENV=test CMD_DB_URL=\"sqlite::memory:\" mocha --exit built/test/*.js",
     "standard": "echo 'standard is no longer being used, use `npm run eslint` instead!' && exit 1",
     "dev": "webpack --config webpack.dev.js --progress --colors --watch",
     "heroku-prebuild": "bin/heroku",
@@ -175,6 +175,7 @@
     "@types/helmet": "^0.0.45",
     "@types/lodash": "^4.14.149",
     "@types/minio": "^7.0.5",
+    "@types/mocha": "^7.0.2",
     "@types/node": "^13.11.1",
     "@types/passport": "^1.0.3",
     "@types/passport-facebook": "^2.1.9",
@@ -186,6 +187,7 @@
     "@types/passport-twitter": "^1.0.34",
     "@types/passport.socketio": "^3.7.2",
     "@types/randomcolor": "^0.5.4",
+    "@types/sinon": "^9.0.0",
     "@types/validator": "^13.0.0",
     "@typescript-eslint/eslint-plugin": "^2.27.0",
     "@typescript-eslint/parser": "^2.27.0",
@@ -214,11 +216,12 @@
     "less-loader": "^5.0.0",
     "mini-css-extract-plugin": "^0.8.0",
     "mocha": "^5.2.0",
-    "mock-require": "^3.0.3",
     "optimize-css-assets-webpack-plugin": "^5.0.3",
     "script-loader": "^0.7.2",
+    "sinon": "^9.0.2",
     "string-loader": "^0.0.1",
     "style-loader": "^1.0.0",
+    "ts-mock-imports": "^1.3.0",
     "ts-node": "^8.8.2",
     "typescript": "^3.7.2",
     "url-loader": "^2.3.0",
diff --git a/src/lib/config/index.ts b/src/lib/config/index.ts
index 2924dc263..beaa09d88 100644
--- a/src/lib/config/index.ts
+++ b/src/lib/config/index.ts
@@ -21,6 +21,8 @@ const debugConfig = {
 }
 
 // Get version string from package.json
+// TODO: There are other ways to geht the current version
+// eslint-disable-next-line @typescript-eslint/no-var-requires
 const { version, repository } = require(path.join(appRootPath, 'package.json'))
 
 const commitID = getGitCommit(appRootPath)
diff --git a/src/lib/errors.ts b/src/lib/errors.ts
index d5d3ea00c..4adc871b9 100644
--- a/src/lib/errors.ts
+++ b/src/lib/errors.ts
@@ -1,4 +1,4 @@
-const config = require('./config')
+import { config } from './config'
 
 function responseError (res, code: number, detail: string, msg: string): void {
   res.status(code).render('error.ejs', {
diff --git a/src/lib/library-ext.d.ts b/src/lib/library-ext.d.ts
index 0d373e22f..fd2ec2d7a 100644
--- a/src/lib/library-ext.d.ts
+++ b/src/lib/library-ext.d.ts
@@ -1,6 +1,5 @@
 import { User } from './models'
 
-
 declare module 'express' {
   export interface Request {
     user?: User;
diff --git a/src/lib/response.ts b/src/lib/response.ts
index a8bc9b5fe..f01d576ec 100644
--- a/src/lib/response.ts
+++ b/src/lib/response.ts
@@ -6,7 +6,7 @@ import fs from 'fs'
 
 import { logger } from './logger'
 
-import { NoteUtils } from './web/note/util'
+import * as NoteUtils from './web/note/util'
 
 import { errors } from './errors'
 
diff --git a/src/lib/web/auth/ldap/index.ts b/src/lib/web/auth/ldap/index.ts
index 99b1d8999..66b885ebf 100644
--- a/src/lib/web/auth/ldap/index.ts
+++ b/src/lib/web/auth/ldap/index.ts
@@ -3,10 +3,10 @@ import passport from 'passport'
 import LDAPStrategy from 'passport-ldapauth'
 
 import { config } from '../../../config'
-import { User } from '../../../models'
-import { logger } from '../../../logger'
-import { urlencodedParser } from '../../utils'
 import { errors } from '../../../errors'
+import { logger } from '../../../logger'
+import { User } from '../../../models'
+import { urlencodedParser } from '../../utils'
 import { AuthMiddleware } from '../interface'
 
 export const LdapMiddleware: AuthMiddleware = {
@@ -22,7 +22,7 @@ export const LdapMiddleware: AuthMiddleware = {
         searchFilter: config.ldap.searchFilter || null,
         searchAttributes: config.ldap.searchAttributes || null,
         tlsOptions: config.ldap.tlsOptions || null,
-	starttls: config.ldap.starttls || null
+        starttls: config.ldap.starttls || null
       }
     }, function (user, done) {
       let uuid = user.uidNumber || user.uid || user.sAMAccountName || undefined
diff --git a/src/lib/web/note/controller.ts b/src/lib/web/note/controller.ts
index 57e0a54e8..79711af85 100644
--- a/src/lib/web/note/controller.ts
+++ b/src/lib/web/note/controller.ts
@@ -1,140 +1,138 @@
 import { NextFunction, Request, Response } from 'express'
-import { NoteUtils } from './util'
-import * as ActionController from './actions'
-import { errors } from '../../errors'
 import { config } from '../../config'
+import { errors } from '../../errors'
 import { logger } from '../../logger'
-import { User, Note } from '../../models'
+import { Note, User } from '../../models'
+import * as ActionController from './actions'
+import * as NoteUtils from './util'
 
-export module NoteController {
-  export function publishNoteActions (req: any, res: Response, next: NextFunction) {
-    NoteUtils.findNoteOrCreate(req, res, function (note) {
-      const action = req.params.action
-      switch (action) {
-        case 'download':
-          exports.downloadMarkdown(req, res, note)
-          break
-        case 'edit':
-          res.redirect(config.serverURL + '/' + (note.alias ? note.alias : Note.encodeNoteId(note.id)) + '?both')
-          break
-        default:
-          res.redirect(config.serverURL + '/s/' + note.shortid)
-          break
-      }
-    })
-  }
-
-  export function showPublishNote (req: any, res: Response, next: NextFunction) {
-    const include = [{
-      model: User,
-      as: 'owner'
-    }, {
-      model: User,
-      as: 'lastchangeuser'
-    }]
-    NoteUtils.findNoteOrCreate(req, res, function (note) {
-      // force to use short id
-      const shortid = req.params.shortid
-      if ((note.alias && shortid !== note.alias) || (!note.alias && shortid !== note.shortid)) {
-        return res.redirect(config.serverURL + '/s/' + (note.alias || note.shortid))
-      }
-      note.increment('viewcount').then(function (note) {
-        if (!note) {
-          return errors.errorNotFound(res)
-        }
-        NoteUtils.getPublishData(req, res, note, (data) => {
-          res.set({
-            'Cache-Control': 'private' // only cache by client
-          })
-          return res.render('pretty.ejs', data)
-        })
-      }).catch(function (err) {
-        logger.error(err)
-        return errors.errorInternalError(res)
-      })
-    }, include)
-  }
-
-  export function showNote (req: any, res: Response, next: NextFunction) {
-    NoteUtils.findNoteOrCreate(req, res, function (note) {
-      // force to use note id
-      const noteId = req.params.noteId
-      const id = Note.encodeNoteId(note.id)
-      if ((note.alias && noteId !== note.alias) || (!note.alias && noteId !== id)) {
-        return res.redirect(config.serverURL + '/' + (note.alias || id))
-      }
-      const body = note.content
-      const extracted = Note.extractMeta(body)
-      const meta = Note.parseMeta(extracted.meta)
-      let title = Note.decodeTitle(note.title)
-      title = Note.generateWebTitle(meta.title || title)
-      const opengraph = Note.parseOpengraph(meta, title)
-      res.set({
-        'Cache-Control': 'private', // only cache by client
-        'X-Robots-Tag': 'noindex, nofollow' // prevent crawling
-      })
-      return res.render('codimd.ejs', {
-        title: title,
-        opengraph: opengraph
-      })
-    })
-  }
-
-  export function createFromPOST (req: any, res: Response, next: NextFunction) {
-    let body = ''
-    if (req.body && req.body.length > config.documentMaxLength) {
-      return errors.errorTooLong(res)
-    } else if (req.body) {
-      body = req.body
+export function publishNoteActions (req: any, res: Response, next: NextFunction) {
+  NoteUtils.findNoteOrCreate(req, res, function (note) {
+    const action = req.params.action
+    switch (action) {
+      case 'download':
+        exports.downloadMarkdown(req, res, note)
+        break
+      case 'edit':
+        res.redirect(config.serverURL + '/' + (note.alias ? note.alias : Note.encodeNoteId(note.id)) + '?both')
+        break
+      default:
+        res.redirect(config.serverURL + '/s/' + note.shortid)
+        break
     }
-    body = body.replace(/[\r]/g, '')
-    return NoteUtils.newNote(req, res, body)
-  }
+  })
+}
 
-  export function doAction (req: any, res: Response, next: NextFunction) {
-    const noteId = req.params.noteId
-    NoteUtils.findNoteOrCreate(req, res, (note) => {
-      const action = req.params.action
-      // TODO: Don't switch on action, choose action in Router and use separate functions
-      switch (action) {
-        case 'publish':
-        case 'pretty': // pretty deprecated
-          res.redirect(config.serverURL + '/s/' + (note.alias || note.shortid))
-          break
-        case 'slide':
-          res.redirect(config.serverURL + '/p/' + (note.alias || note.shortid))
-          break
-        case 'download':
-          exports.downloadMarkdown(req, res, note)
-          break
-        case 'info':
-          ActionController.getInfo(req, res, note)
-          break
-        case 'gist':
-          ActionController.createGist(req, res, note)
-          break
-        case 'revision':
-          ActionController.getRevision(req, res, note)
-          break
-        default:
-          return res.redirect(config.serverURL + '/' + noteId)
+export function showPublishNote (req: any, res: Response, next: NextFunction) {
+  const include = [{
+    model: User,
+    as: 'owner'
+  }, {
+    model: User,
+    as: 'lastchangeuser'
+  }]
+  NoteUtils.findNoteOrCreate(req, res, function (note) {
+    // force to use short id
+    const shortid = req.params.shortid
+    if ((note.alias && shortid !== note.alias) || (!note.alias && shortid !== note.shortid)) {
+      return res.redirect(config.serverURL + '/s/' + (note.alias || note.shortid))
+    }
+    note.increment('viewcount').then(function (note) {
+      if (!note) {
+        return errors.errorNotFound(res)
       }
+      NoteUtils.getPublishData(req, res, note, (data) => {
+        res.set({
+          'Cache-Control': 'private' // only cache by client
+        })
+        return res.render('pretty.ejs', data)
+      })
+    }).catch(function (err) {
+      logger.error(err)
+      return errors.errorInternalError(res)
     })
-  }
+  }, include)
+}
 
-  export function downloadMarkdown (req: Request, res: Response, note: any) {
+export function showNote (req: any, res: Response, next: NextFunction) {
+  NoteUtils.findNoteOrCreate(req, res, function (note) {
+    // force to use note id
+    const noteId = req.params.noteId
+    const id = Note.encodeNoteId(note.id)
+    if ((note.alias && noteId !== note.alias) || (!note.alias && noteId !== id)) {
+      return res.redirect(config.serverURL + '/' + (note.alias || id))
+    }
     const body = note.content
-    let filename = Note.decodeTitle(note.title)
-    filename = encodeURIComponent(filename)
+    const extracted = Note.extractMeta(body)
+    const meta = Note.parseMeta(extracted.meta)
+    let title = Note.decodeTitle(note.title)
+    title = Note.generateWebTitle(meta.title || title)
+    const opengraph = Note.parseOpengraph(meta, title)
     res.set({
-      'Access-Control-Allow-Origin': '*', // allow CORS as API
-      'Access-Control-Allow-Headers': 'Range',
-      'Access-Control-Expose-Headers': 'Cache-Control, Content-Encoding, Content-Range',
-      'Content-Type': 'text/markdown; charset=UTF-8',
-      'Cache-Control': 'private',
-      'Content-disposition': 'attachment; filename=' + filename + '.md',
+      'Cache-Control': 'private', // only cache by client
       'X-Robots-Tag': 'noindex, nofollow' // prevent crawling
     })
-    res.send(body)
-  }
+    return res.render('codimd.ejs', {
+      title: title,
+      opengraph: opengraph
+    })
+  })
+}
+
+export function createFromPOST (req: any, res: Response, next: NextFunction) {
+  let body = ''
+  if (req.body && req.body.length > config.documentMaxLength) {
+    return errors.errorTooLong(res)
+  } else if (req.body) {
+    body = req.body
+  }
+  body = body.replace(/[\r]/g, '')
+  return NoteUtils.newNote(req, res, body)
+}
+
+export function doAction (req: any, res: Response, next: NextFunction) {
+  const noteId = req.params.noteId
+  NoteUtils.findNoteOrCreate(req, res, (note) => {
+    const action = req.params.action
+    // TODO: Don't switch on action, choose action in Router and use separate functions
+    switch (action) {
+      case 'publish':
+      case 'pretty': // pretty deprecated
+        res.redirect(config.serverURL + '/s/' + (note.alias || note.shortid))
+        break
+      case 'slide':
+        res.redirect(config.serverURL + '/p/' + (note.alias || note.shortid))
+        break
+      case 'download':
+        exports.downloadMarkdown(req, res, note)
+        break
+      case 'info':
+        ActionController.getInfo(req, res, note)
+        break
+      case 'gist':
+        ActionController.createGist(req, res, note)
+        break
+      case 'revision':
+        ActionController.getRevision(req, res, note)
+        break
+      default:
+        return res.redirect(config.serverURL + '/' + noteId)
+    }
+  })
+}
+
+export function downloadMarkdown (req: Request, res: Response, note: any) {
+  const body = note.content
+  let filename = Note.decodeTitle(note.title)
+  filename = encodeURIComponent(filename)
+  res.set({
+    'Access-Control-Allow-Origin': '*', // allow CORS as API
+    'Access-Control-Allow-Headers': 'Range',
+    'Access-Control-Expose-Headers': 'Cache-Control, Content-Encoding, Content-Range',
+    'Content-Type': 'text/markdown; charset=UTF-8',
+    'Cache-Control': 'private',
+    'Content-disposition': 'attachment; filename=' + filename + '.md',
+    'X-Robots-Tag': 'noindex, nofollow' // prevent crawling
+  })
+  res.send(body)
 }
diff --git a/src/lib/web/note/router.ts b/src/lib/web/note/router.ts
index 7eecd08c9..034d89a16 100644
--- a/src/lib/web/note/router.ts
+++ b/src/lib/web/note/router.ts
@@ -1,8 +1,8 @@
-import { markdownParser } from '../utils'
-
-import { SlideController } from './slide'
-import { NoteController } from './controller'
 import { Router } from 'express'
+import { markdownParser } from '../utils'
+import * as NoteController from './controller'
+
+import * as SlideController from './slide'
 
 const NoteRouter = Router()
 // get new note
diff --git a/src/lib/web/note/slide.ts b/src/lib/web/note/slide.ts
index 9ee4f29ae..5008295f1 100644
--- a/src/lib/web/note/slide.ts
+++ b/src/lib/web/note/slide.ts
@@ -1,52 +1,48 @@
-import { NextFunction, Response } from "express";
-import { NoteUtils } from "./util";
+import { NextFunction, Response } from 'express'
+import { config } from '../../config'
 import { errors } from '../../errors'
 import { logger } from '../../logger'
-import { config } from '../../config'
-import { User } from "../../models/user";
-import { Note } from "../../models/note";
+import { Note, User } from '../../models'
+import * as NoteUtils from './util'
 
-
-export module SlideController {
-  export function publishSlideActions(req: any, res: Response, next: NextFunction) {
-    NoteUtils.findNoteOrCreate(req, res, function (note) {
-      const action = req.params.action
-      if (action === 'edit') {
-        res.redirect(config.serverURL + '/' + (note.alias ? note.alias : Note.encodeNoteId(note.id)) + '?both')
-      } else { res.redirect(config.serverURL + '/p/' + note.shortid) }
-    })
-  }
-
-
-
-  export function showPublishSlide(req: any, res: Response, next: NextFunction) {
-    const include = [{
-      model: User,
-      as: 'owner'
-    }, {
-      model: User,
-      as: 'lastchangeuser'
-    }]
-    NoteUtils.findNoteOrCreate(req, res, function (note) {
-      // force to use short id
-      const shortid = req.params.shortid
-      if ((note.alias && shortid !== note.alias) || (!note.alias && shortid !== note.shortid)) {
-        return res.redirect(config.serverURL + '/p/' + (note.alias || note.shortid))
-      }
-      note.increment('viewcount').then(function (note) {
-        if (!note) {
-          return errors.errorNotFound(res)
-        }
-        NoteUtils.getPublishData(req, res, note, (data) => {
-          res.set({
-            'Cache-Control': 'private' // only cache by client
-          })
-          return res.render('slide.ejs', data)
-        })
-      }).catch(function (err) {
-        logger.error(err)
-        return errors.errorInternalError(res)
-      })
-    }, include)
-  }
+export function publishSlideActions (req: any, res: Response, next: NextFunction) {
+  NoteUtils.findNoteOrCreate(req, res, function (note) {
+    const action = req.params.action
+    if (action === 'edit') {
+      res.redirect(config.serverURL + '/' + (note.alias ? note.alias : Note.encodeNoteId(note.id)) + '?both')
+    } else {
+      res.redirect(config.serverURL + '/p/' + note.shortid)
+    }
+  })
+}
+
+export function showPublishSlide (req: any, res: Response, next: NextFunction) {
+  const include = [{
+    model: User,
+    as: 'owner'
+  }, {
+    model: User,
+    as: 'lastchangeuser'
+  }]
+  NoteUtils.findNoteOrCreate(req, res, function (note) {
+    // force to use short id
+    const shortid = req.params.shortid
+    if ((note.alias && shortid !== note.alias) || (!note.alias && shortid !== note.shortid)) {
+      return res.redirect(config.serverURL + '/p/' + (note.alias || note.shortid))
+    }
+    note.increment('viewcount').then(function (note) {
+      if (!note) {
+        return errors.errorNotFound(res)
+      }
+      NoteUtils.getPublishData(req, res, note, (data) => {
+        res.set({
+          'Cache-Control': 'private' // only cache by client
+        })
+        return res.render('slide.ejs', data)
+      })
+    }).catch(function (err) {
+      logger.error(err)
+      return errors.errorInternalError(res)
+    })
+  }, include)
 }
diff --git a/src/lib/web/note/util.ts b/src/lib/web/note/util.ts
index 78e24ad36..e26d3235e 100644
--- a/src/lib/web/note/util.ts
+++ b/src/lib/web/note/util.ts
@@ -1,113 +1,111 @@
-import { Includeable } from 'sequelize'
 import { Response } from 'express'
+import fs from 'fs'
 
 import path from 'path'
-import fs from 'fs'
-import { errors } from '../../errors'
+import { Includeable } from 'sequelize'
 import { config } from '../../config'
+import { errors } from '../../errors'
 import { logger } from '../../logger'
-import { Note , User } from '../../models'
+import { Note, User } from '../../models'
 
-export module NoteUtils {
-  export function findNoteOrCreate(req, res, callback: (note: any) => void, include?: Includeable[]) {
-    const id = req.params.noteId || req.params.shortid
-    Note.parseNoteId(id, function (err, _id) {
-      if (err) {
-        logger.error(err)
-        return errors.errorInternalError(res)
+export function newNote (req: any, res: Response, body: string | null) {
+  let owner = null
+  const noteId = req.params.noteId ? req.params.noteId : null
+  if (req.isAuthenticated()) {
+    owner = req.user.id
+  } else if (!config.allowAnonymous) {
+    return errors.errorForbidden(res)
+  }
+  if (config.allowFreeURL && noteId && !config.forbiddenNoteIDs.includes(noteId)) {
+    req.alias = noteId
+  } else if (noteId) {
+    return req.method === 'POST' ? errors.errorForbidden(res) : errors.errorNotFound(res)
+  }
+  Note.create({
+    ownerId: owner,
+    alias: req.alias ? req.alias : null,
+    content: body
+  }).then(function (note) {
+    return res.redirect(config.serverURL + '/' + (note.alias ? note.alias : Note.encodeNoteId(note.id)))
+  }).catch(function (err) {
+    logger.error(err)
+    return errors.errorInternalError(res)
+  })
+}
+
+export function checkViewPermission (req: any, note: any) {
+  if (note.permission === 'private') {
+    return req.isAuthenticated() && note.ownerId === req.user.id
+  } else if (note.permission === 'limited' || note.permission === 'protected') {
+    return req.isAuthenticated()
+  } else {
+    return true
+  }
+}
+
+export function findNoteOrCreate (req, res, callback: (note: any) => void, include?: Includeable[]) {
+  const id = req.params.noteId || req.params.shortid
+  Note.parseNoteId(id, function (err, _id) {
+    if (err) {
+      logger.error(err)
+      return errors.errorInternalError(res)
+    }
+    Note.findOne({
+      where: {
+        id: _id
       }
-      Note.findOne({
-        where: {
-          id: _id
-        }
-      }).then(function (note) {
-        if (!note) {
-          return newNote(req, res, "")
-        }
-        if (!checkViewPermission(req, note)) {
-          return errors.errorForbidden(res)
-        } else {
-          return callback(note)
-        }
-      }).catch(function (err) {
-        logger.error(err)
-        return errors.errorInternalError(res)
-      })
-    })
-  }
-
-  export function checkViewPermission (req: any, note: any) {
-    if (note.permission === 'private') {
-      return req.isAuthenticated() && note.ownerId === req.user.id
-    } else if (note.permission === 'limited' || note.permission === 'protected') {
-      return req.isAuthenticated()
-    } else {
-      return true
-    }
-  }
-
-  export function newNote (req: any, res: Response, body: string | null) {
-    let owner = null
-    const noteId = req.params.noteId ? req.params.noteId : null
-    if (req.isAuthenticated()) {
-      owner = req.user.id
-    } else if (!config.allowAnonymous) {
-      return errors.errorForbidden(res)
-    }
-    if (config.allowFreeURL && noteId && !config.forbiddenNoteIDs.includes(noteId)) {
-      req.alias = noteId
-    } else if (noteId) {
-      return req.method === 'POST' ? errors.errorForbidden(res) : errors.errorNotFound(res)
-    }
-    Note.create({
-      ownerId: owner,
-      alias: req.alias ? req.alias : null,
-      content: body
     }).then(function (note) {
-      return res.redirect(config.serverURL + '/' + (note.alias ? note.alias : Note.encodeNoteId(note.id)))
+      if (!note) {
+        return newNote(req, res, '')
+      }
+      if (!checkViewPermission(req, note)) {
+        return errors.errorForbidden(res)
+      } else {
+        return callback(note)
+      }
     }).catch(function (err) {
       logger.error(err)
       return errors.errorInternalError(res)
     })
-  }
-
-  export function getPublishData (req: any, res: Response, note: any, callback: (data: any) => void) {
-    const body = note.content
-    const extracted = Note.extractMeta(body)
-    const markdown = extracted.markdown
-    const meta = Note.parseMeta(extracted.meta)
-    const createtime = note.createdAt
-    const updatetime = note.lastchangeAt
-    let title = Note.decodeTitle(note.title)
-    title = Note.generateWebTitle(meta.title || title)
-    const ogdata = Note.parseOpengraph(meta, title)
-    const data = {
-      title: title,
-      description: meta.description || (markdown ? Note.generateDescription(markdown) : null),
-      viewcount: note.viewcount,
-      createtime: createtime,
-      updatetime: updatetime,
-      body: markdown,
-      theme: meta.slideOptions && isRevealTheme(meta.slideOptions.theme),
-      meta: JSON.stringify(extracted.meta),
-      owner: note.owner ? note.owner.id : null,
-      ownerprofile: note.owner ? User.getProfile(note.owner) : null,
-      lastchangeuser: note.lastchangeuser ? note.lastchangeuser.id : null,
-      lastchangeuserprofile: note.lastchangeuser ? User.getProfile(note.lastchangeuser) : null,
-      robots: meta.robots || false, // default allow robots
-      GA: meta.GA,
-      disqus: meta.disqus,
-      cspNonce: res.locals.nonce,
-      dnt: req.headers.dnt,
-      opengraph: ogdata
-    }
-    callback(data)
-  }
-
-  function isRevealTheme (theme: string) {
-    if (fs.existsSync(path.join(__dirname, '..', '..', '..', 'public', 'build', 'reveal.js', 'css', 'theme', theme + '.css'))) {
-      return theme
-    }
-    return undefined
-  }
+  })
+}
+
+function isRevealTheme (theme: string) {
+  if (fs.existsSync(path.join(__dirname, '..', '..', '..', '..', 'public', 'build', 'reveal.js', 'css', 'theme', theme + '.css'))) {
+    return theme
+  }
+  return undefined
+}
+
+export function getPublishData (req: any, res: Response, note: any, callback: (data: any) => void) {
+  const body = note.content
+  const extracted = Note.extractMeta(body)
+  const markdown = extracted.markdown
+  const meta = Note.parseMeta(extracted.meta)
+  const createtime = note.createdAt
+  const updatetime = note.lastchangeAt
+  let title = Note.decodeTitle(note.title)
+  title = Note.generateWebTitle(meta.title || title)
+  const ogdata = Note.parseOpengraph(meta, title)
+  const data = {
+    title: title,
+    description: meta.description || (markdown ? Note.generateDescription(markdown) : null),
+    viewcount: note.viewcount,
+    createtime: createtime,
+    updatetime: updatetime,
+    body: markdown,
+    theme: meta.slideOptions && isRevealTheme(meta.slideOptions.theme),
+    meta: JSON.stringify(extracted.meta),
+    owner: note.owner ? note.owner.id : null,
+    ownerprofile: note.owner ? User.getProfile(note.owner) : null,
+    lastchangeuser: note.lastchangeuser ? note.lastchangeuser.id : null,
+    lastchangeuserprofile: note.lastchangeuser ? User.getProfile(note.lastchangeuser) : null,
+    robots: meta.robots || false, // default allow robots
+    GA: meta.GA,
+    disqus: meta.disqus,
+    cspNonce: res.locals.nonce,
+    dnt: req.headers.dnt,
+    opengraph: ogdata
+  }
+  callback(data)
 }
diff --git a/src/lib/workers/dmpWorker.ts b/src/lib/workers/dmpWorker.ts
index 2aac4df46..604bb7253 100644
--- a/src/lib/workers/dmpWorker.ts
+++ b/src/lib/workers/dmpWorker.ts
@@ -110,47 +110,47 @@ process.on('message', function (data: Data) {
     return logger.error('dmp worker error: not enough data')
   }
   switch (data.msg) {
-  case 'create patch':
-    if (data.lastDoc === undefined || data.currDoc === undefined) {
-      return logger.error('dmp worker error: not enough data on create patch')
-    }
-    try {
-      const patch: string = createPatch(data.lastDoc, data.currDoc)
-      processSend({
-        msg: 'check',
-        result: patch,
-        cacheKey: data.cacheKey
-      })
-    } catch (err) {
-      logger.error('create patch: dmp worker error', err)
-      processSend({
-        msg: 'error',
-        error: err,
-        cacheKey: data.cacheKey
-      })
-    }
-    break
-  case 'get revision':
-    if (data.revisions === undefined || data.count === undefined) {
-      return logger.error('dmp worker error: not enough data on get revision')
-    }
-    try {
+    case 'create patch':
+      if (data.lastDoc === undefined || data.currDoc === undefined) {
+        return logger.error('dmp worker error: not enough data on create patch')
+      }
+      try {
+        const patch: string = createPatch(data.lastDoc, data.currDoc)
+        processSend({
+          msg: 'check',
+          result: patch,
+          cacheKey: data.cacheKey
+        })
+      } catch (err) {
+        logger.error('create patch: dmp worker error', err)
+        processSend({
+          msg: 'error',
+          error: err,
+          cacheKey: data.cacheKey
+        })
+      }
+      break
+    case 'get revision':
+      if (data.revisions === undefined || data.count === undefined) {
+        return logger.error('dmp worker error: not enough data on get revision')
+      }
+      try {
       // eslint-disable-next-line @typescript-eslint/camelcase
-      const result: { content: string; patch: patch_obj[]; authorship: string } = getRevision(data.revisions, data.count)
-      processSend({
-        msg: 'check',
-        result: result,
-        cacheKey: data.cacheKey
-      })
-    } catch (err) {
-      logger.error('get revision: dmp worker error', err)
-      processSend({
-        msg: 'error',
-        error: err,
-        cacheKey: data.cacheKey
-      })
-    }
-    break
+        const result: { content: string; patch: patch_obj[]; authorship: string } = getRevision(data.revisions, data.count)
+        processSend({
+          msg: 'check',
+          result: result,
+          cacheKey: data.cacheKey
+        })
+      } catch (err) {
+        logger.error('get revision: dmp worker error', err)
+        processSend({
+          msg: 'error',
+          error: err,
+          cacheKey: data.cacheKey
+        })
+      }
+      break
   }
 })
 
diff --git a/src/test/csp.js b/src/test/csp.ts
similarity index 74%
rename from src/test/csp.js
rename to src/test/csp.ts
index 8cf24b9a7..52a4b6789 100644
--- a/src/test/csp.js
+++ b/src/test/csp.ts
@@ -1,11 +1,12 @@
 /* eslint-env node, mocha */
 'use strict'
 
-const assert = require('assert')
-const crypto = require('crypto')
-const fs = require('fs')
-const path = require('path')
-const mock = require('mock-require')
+import assert from 'assert'
+import crypto from 'crypto'
+import fs from 'fs'
+import path from 'path'
+import * as configModule from '../lib/config'
+import { ImportMock } from 'ts-mock-imports'
 
 describe('Content security policies', function () {
   let defaultConfig, csp
@@ -31,22 +32,11 @@ describe('Content security policies', function () {
     }
   })
 
-  afterEach(function () {
-    mock.stop('../lib/config')
-    csp = mock.reRequire('../lib/csp')
-  })
-
-  after(function () {
-    mock.stopAll()
-    csp = mock.reRequire('../lib/csp')
-  })
-
   // beginnging Tests
   it('Disable CDN', function () {
-    let testconfig = defaultConfig
+    const testconfig = defaultConfig
     testconfig.useCDN = false
-    mock('../lib/config', testconfig)
-    csp = mock.reRequire('../lib/csp')
+    ImportMock.mockOther(configModule, 'config', testconfig)
 
     assert(!csp.computeDirectives().scriptSrc.includes('https://cdnjs.cloudflare.com'))
     assert(!csp.computeDirectives().scriptSrc.includes('https://cdn.mathjax.org'))
@@ -57,19 +47,17 @@ describe('Content security policies', function () {
   })
 
   it('Disable Google Analytics', function () {
-    let testconfig = defaultConfig
+    const testconfig = defaultConfig
     testconfig.csp.addGoogleAnalytics = false
-    mock('../lib/config', testconfig)
-    csp = mock.reRequire('../lib/csp')
+    ImportMock.mockOther(configModule, 'config', testconfig)
 
     assert(!csp.computeDirectives().scriptSrc.includes('https://www.google-analytics.com'))
   })
 
   it('Disable Disqus', function () {
-    let testconfig = defaultConfig
+    const testconfig = defaultConfig
     testconfig.csp.addDisqus = false
-    mock('../lib/config', testconfig)
-    csp = mock.reRequire('../lib/csp')
+    ImportMock.mockOther(configModule, 'config', testconfig)
 
     assert(!csp.computeDirectives().scriptSrc.includes('https://disqus.com'))
     assert(!csp.computeDirectives().scriptSrc.includes('https://*.disqus.com'))
@@ -79,18 +67,16 @@ describe('Content security policies', function () {
   })
 
   it('Set ReportURI', function () {
-    let testconfig = defaultConfig
+    const testconfig = defaultConfig
     testconfig.csp.reportURI = 'https://example.com/reportURI'
-    mock('../lib/config', testconfig)
-    csp = mock.reRequire('../lib/csp')
+    ImportMock.mockOther(configModule, 'config', testconfig)
 
     assert.strictEqual(csp.computeDirectives().reportUri, 'https://example.com/reportURI')
   })
 
   it('Set own directives', function () {
-    let testconfig = defaultConfig
-    mock('../lib/config', defaultConfig)
-    csp = mock.reRequire('../lib/csp')
+    const testconfig = defaultConfig
+    ImportMock.mockOther(configModule, 'config', testconfig)
     const unextendedCSP = csp.computeDirectives()
     testconfig.csp.directives = {
       defaultSrc: ['https://default.example.com'],
@@ -103,8 +89,7 @@ describe('Content security policies', function () {
       childSrc: ['https://child.example.com'],
       connectSrc: ['https://connect.example.com']
     }
-    mock('../lib/config', testconfig)
-    csp = mock.reRequire('../lib/csp')
+    ImportMock.mockOther(configModule, 'config', testconfig)
 
     const variations = ['default', 'script', 'img', 'style', 'font', 'object', 'media', 'child', 'connect']
 
@@ -118,7 +103,7 @@ describe('Content security policies', function () {
    */
   it('Unchanged hash for reveal.js speaker notes plugin', function () {
     const hash = crypto.createHash('sha1')
-    hash.update(fs.readFileSync(path.resolve(__dirname, '../node_modules/reveal.js/plugin/notes/notes.html'), 'utf8'), 'utf8')
+    hash.update(fs.readFileSync(path.join(process.cwd(), '/node_modules/reveal.js/plugin/notes/notes.html'), 'utf8'), 'utf8')
     assert.strictEqual(hash.digest('hex'), 'd5d872ae49b5db27f638b152e6e528837204d380')
   })
 })
diff --git a/src/test/letter-avatars.js b/src/test/letter-avatars.ts
similarity index 83%
rename from src/test/letter-avatars.js
rename to src/test/letter-avatars.ts
index 8cc32d8b4..0f4f7604b 100644
--- a/src/test/letter-avatars.js
+++ b/src/test/letter-avatars.ts
@@ -2,20 +2,21 @@
 
 'use strict'
 
-const assert = require('assert')
-const mock = require('mock-require')
+import { ImportMock } from 'ts-mock-imports'
+import * as configModule from '../lib/config'
+
+import assert from 'assert'
+import * as avatars from '../lib/letter-avatars'
 
 describe('generateAvatarURL() gravatar enabled', function () {
-  let avatars
   beforeEach(function () {
     // Reset config to make sure we don't influence other tests
-    let testconfig = {
+    const testconfig = {
       allowGravatar: true,
       serverURL: 'http://localhost:3000',
       port: 3000
     }
-    mock('../lib/config', testconfig)
-    avatars = mock.reRequire('../lib/letter-avatars')
+    ImportMock.mockOther(configModule, 'config', testconfig)
   })
 
   it('should return correct urls', function () {
@@ -29,16 +30,14 @@ describe('generateAvatarURL() gravatar enabled', function () {
 })
 
 describe('generateAvatarURL() gravatar disabled', function () {
-  let avatars
   beforeEach(function () {
     // Reset config to make sure we don't influence other tests
-    let testconfig = {
+    const testconfig = {
       allowGravatar: false,
       serverURL: 'http://localhost:3000',
       port: 3000
     }
-    mock('../lib/config', testconfig)
-    avatars = mock.reRequire('../lib/letter-avatars')
+    ImportMock.mockOther(configModule, 'config', testconfig)
   })
 
   it('should return correct urls', function () {
diff --git a/src/test/user.js b/src/test/user.ts
similarity index 95%
rename from src/test/user.js
rename to src/test/user.ts
index 38776a8f9..dd4f30378 100644
--- a/src/test/user.js
+++ b/src/test/user.ts
@@ -1,15 +1,11 @@
 /* eslint-env node, mocha */
 
-'use strict'
-
-const assert = require('assert')
-
-const models = require('../lib/models')
-const User = models.User
+import { User, sequelize } from '../lib/models'
+import assert = require('assert')
 
 describe('User Sequelize model', function () {
   beforeEach(() => {
-    return models.sequelize.sync({ force: true })
+    return sequelize.sync({ force: true })
   })
 
   it('stores a password hash on creation and verifies that password', function () {