Improved and fixed tests

Skipped tests just meant for manual testing

mocha now used prod mode

Added automated tests for PRs

Fixed backupdb and youtube-dl tests in gh actions

Fixed downloader tests

Removed erroneous logs in tests

Updated mocha.yml

Removed last console.log in tests

Increased timeout for download video test

Automated tests now force stop after tests complete

Replaced download test url with shorter video

Skip download test... for now

increased download test threshold

added more timing information to tests

unskip download test

Bump docker/setup-buildx-action from 1 to 2 in /.github/workflows

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 1 to 2.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](https://github.com/docker/setup-buildx-action/compare/v1...v2)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Bump actions/setup-node from 2 to 3 in /.github/workflows

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 2 to 3.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](https://github.com/actions/setup-node/compare/v2...v3)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Bump actions/upload-artifact from 1 to 3 in /.github/workflows

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 1 to 3.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v1...v3)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Bump docker/login-action from 1 to 2 in /.github/workflows

Bumps [docker/login-action](https://github.com/docker/login-action) from 1 to 2.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](https://github.com/docker/login-action/compare/v1...v2)

---
updated-dependencies:
- dependency-name: docker/login-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Removed additional download button for paused download

Combined output json processing from youtube-dl between subscriptions and one-off downloads

Added workaround for missing video in playlist to one-off downloads

Fixed issue of case where output is empty

Download video code cleanup

Fixed download video test by overriding youtube-dl download method with custom method

Adds ffmpeg to automated tests

Removed test mp3/mp4 file from repo

.github/workflows/mocha.yml

@@ -0,0 +1,40 @@
+name: Tests
+'on':
+  push:
+    branches:
+      - master
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+
+jobs:
+  test:
+    name: 'Backend - mocha'
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node:
+          - 16
+    steps:
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '${{ matrix.node }}'
+      - uses: actions/checkout@v2
+      - name: 'Cache node_modules'
+        uses: actions/cache@v2
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-v${{ matrix.node }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-v${{ matrix.node }}-
+          working-directory: ./backend
+      - uses: FedericoCarboni/setup-ffmpeg@v2
+        id: setup-ffmpeg
+      - name: Install Dependencies
+        run: npm install
+        working-directory: ./backend
+      - name: Run All Node.js Tests
+        run: npm run test
+        working-directory: ./backend

.vscode/settings.json

@@ -3,6 +3,6 @@
     "mochaExplorer.cwd": "backend",
     "mochaExplorer.globImplementation": "vscode",
     "mochaExplorer.env": {
-        "YTDL_MODE": "debug"
+        // "YTDL_MODE": "debug"
     }
 }

backend/db.js

@@ -11,9 +11,8 @@ const logger = require('./logger');
 const low = require('lowdb')
 const FileSync = require('lowdb/adapters/FileSync');
 const { BehaviorSubject } = require('rxjs');
-const local_adapter = new FileSync('./appdata/local_db.json');
-const local_db = low(local_adapter);
 
+let local_db = null;
 let database = null;
 exports.database_initialized = false;
 exports.database_initialized_bs = new BehaviorSubject(false);
@@ -73,10 +72,6 @@ const tables = {
 
 const tables_list = Object.keys(tables);
 
-const local_db_defaults = {}
-tables_list.forEach(table => {local_db_defaults[table] = []});
-local_db.defaults(local_db_defaults).write();
-
 let using_local_db = null; 
 
 function setDB(input_db, input_users_db) {
@@ -85,11 +80,18 @@ function setDB(input_db, input_users_db) {
     exports.users_db = input_users_db
 }
 
-exports.initialize = (input_db, input_users_db) => {
+exports.initialize = (input_db, input_users_db, db_name = 'local_db.json') => {
     setDB(input_db, input_users_db);
 
     // must be done here to prevent getConfigItem from being called before init
     using_local_db = config_api.getConfigItem('ytdl_use_local_db');
+
+    const local_adapter = new FileSync(`./appdata/${db_name}`);
+    local_db = low(local_adapter);
+
+    const local_db_defaults = {}
+    tables_list.forEach(table => {local_db_defaults[table] = []});
+    local_db.defaults(local_db_defaults).write();
 }
 
 exports.connectToDB = async (retries = 5, no_fallback = false, custom_connection_string = null) => {

backend/downloader.js

@@ -7,6 +7,7 @@ const Mutex = require('async-mutex').Mutex;
 const youtubedl = require('youtube-dl');
 
 const logger = require('./logger');
+const youtubedl_api = require('./youtube-dl');
 const config_api = require('./config');
 const twitch_api = require('./twitch');
 const { create } = require('xmlbuilder2');
@@ -21,10 +22,10 @@ const mutex = new Mutex();
 let should_check_downloads = true;
 
 if (db_api.database_initialized) {
-    setupDownloads();
+    exports.setupDownloads();
 } else {
     db_api.database_initialized_bs.subscribe(init => {
-        if (init) setupDownloads();
+        if (init) exports.setupDownloads();
     });
 }
 
@@ -47,7 +48,7 @@ We use checkDownloads() to move downloads through the steps and call their respe
 
 */
 
-exports.createDownload = async (url, type, options, user_uid = null, sub_id = null, sub_name = null, prefetched_info = null) => {
+exports.createDownload = async (url, type, options, user_uid = null, sub_id = null, sub_name = null, prefetched_info = null, paused = false) => {
     return await mutex.runExclusive(async () => {
         const download = {
             url: url,
@@ -60,7 +61,7 @@ exports.createDownload = async (url, type, options, user_uid = null, sub_id = nu
             options: options,
             uid: uuid(),
             step_index: 0,
-            paused: false,
+            paused: paused,
             running: false,
             finished_step: true,
             error: null,
@@ -133,7 +134,7 @@ async function handleDownloadError(download, error_message, error_type = null) {
     await db_api.updateRecord('download_queue', {uid: download['uid']}, {error: error_message, finished: true, running: false, error_type: error_type});
 }
 
-async function setupDownloads() {
+exports.setupDownloads = async () => {
     await fixDownloadState();
     setInterval(checkDownloads, 1000);
 }
@@ -188,7 +189,7 @@ async function checkDownloads() {
             if (waiting_download['step_index'] === 0) {
                 collectInfo(waiting_download['uid']);
             } else if (waiting_download['step_index'] === 1) {
-                downloadQueuedFile(waiting_download['uid']);
+                exports.downloadQueuedFile(waiting_download['uid']);
             }
         }
     }
@@ -240,7 +241,7 @@ async function collectInfo(download_uid) {
     let category = null;
 
     // check if it fits into a category. If so, then get info again using new args
-    if (!Array.isArray(info) || config_api.getConfigItem('ytdl_allow_playlist_categorization')) category = await categories_api.categorize(info);
+    if (info.length === 0 || config_api.getConfigItem('ytdl_allow_playlist_categorization')) category = await categories_api.categorize(info);
 
     // set custom output if the category has one and re-retrieve info so the download manager has the right file name
     if (category && category['custom_output']) {
@@ -259,13 +260,9 @@ async function collectInfo(download_uid) {
     const files_to_check_for_progress = [];
 
     // store info in download for future use
-    if (Array.isArray(info)) {
-        for (let info_obj of info) files_to_check_for_progress.push(utils.removeFileExtension(info_obj['_filename']));
-    } else {
-        files_to_check_for_progress.push(utils.removeFileExtension(info['_filename']));
-    }
+    for (let info_obj of info) files_to_check_for_progress.push(utils.removeFileExtension(info_obj['_filename']));
 
-    const playlist_title = Array.isArray(info) ? info[0]['playlist_title'] || info[0]['playlist'] : null;
+    const playlist_title = info.length > 0 ? info[0]['playlist_title'] || info[0]['playlist'] : null;
     await db_api.updateRecord('download_queue', {uid: download_uid}, {args: args,
                                                                     finished_step: true,
                                                                     running: false,
@@ -278,7 +275,7 @@ async function collectInfo(download_uid) {
                                                                 });
 }
 
-async function downloadQueuedFile(download_uid) {
+exports.downloadQueuedFile = async(download_uid, downloadMethod = youtubedl.exec) => {
     const download = await db_api.getRecord('download_queue', {uid: download_uid});
     if (download['paused']) {
         return;
@@ -306,114 +303,102 @@ async function downloadQueuedFile(download_uid) {
         const start_time = Date.now();
 
         const download_checker = setInterval(() => checkDownloadPercent(download['uid']), 1000);
-
+        const file_objs = [];
         // download file
-        youtubedl.exec(url, args, {maxBuffer: Infinity}, async function(err, output) {
-            const file_objs = [];
-            let end_time = Date.now();
-            let difference = (end_time - start_time)/1000;
-            logger.debug(`${type === 'audio' ? 'Audio' : 'Video'} download delay: ${difference} seconds.`);
-            clearInterval(download_checker);
-            if (err) {
-                logger.error(err.stderr);
-                await handleDownloadError(download, err.stderr, 'unknown_error');
+        const {parsed_output, err} = await youtubedl_api.runYoutubeDL(url, args, downloadMethod);
+        clearInterval(download_checker);
+        let end_time = Date.now();
+        let difference = (end_time - start_time)/1000;
+        logger.debug(`${type === 'audio' ? 'Audio' : 'Video'} download delay: ${difference} seconds.`);
+        if (!parsed_output) {
+            logger.error(err.stderr);
+            await handleDownloadError(download, err.stderr, 'unknown_error');
+            resolve(false);
+            return;
+        } else if (parsed_output) {
+            if (parsed_output.length === 0 || parsed_output[0].length === 0) {
+                // ERROR!
+                const error_message = `No output received for video download, check if it exists in your archive.`;
+                await handleDownloadError(download, error_message, 'no_output');
+                logger.warn(error_message);
                 resolve(false);
                 return;
-            } else if (output) {
-                if (output.length === 0 || output[0].length === 0) {
-                    // ERROR!
-                    const error_message = `No output received for video download, check if it exists in your archive.`;
-                    await handleDownloadError(download, error_message, 'no_output');
-                    logger.warn(error_message);
-                    resolve(false);
-                    return;
-                }
-
-                for (let i = 0; i < output.length; i++) {
-                    let output_json = null;
-                    try {
-                        // we have to do this because sometimes there will be leading characters before the actual json
-                        const start_idx = output[i].indexOf('{"');
-                        const clean_output = output[i].slice(start_idx, output[i].length);
-                        output_json = JSON.parse(clean_output);
-                    } catch(e) {
-                        output_json = null;
-                    }
+            }
 
-                    if (!output_json) {
-                        continue;
-                    }
+            for (const output_json of parsed_output) {
+                if (!output_json) {
+                    continue;
+                }
 
-                    // get filepath with no extension
-                    const filepath_no_extension = utils.removeFileExtension(output_json['_filename']);
+                // get filepath with no extension
+                const filepath_no_extension = utils.removeFileExtension(output_json['_filename']);
 
-                    const ext = type === 'audio' ? '.mp3' : '.mp4';
-                    var full_file_path = filepath_no_extension + ext;
-                    var file_name = filepath_no_extension.substring(fileFolderPath.length, filepath_no_extension.length);
+                const ext = type === 'audio' ? '.mp3' : '.mp4';
+                var full_file_path = filepath_no_extension + ext;
+                var file_name = filepath_no_extension.substring(fileFolderPath.length, filepath_no_extension.length);
 
-                    if (type === 'video' && url.includes('twitch.tv/videos/') && url.split('twitch.tv/videos/').length > 1
-                        && config_api.getConfigItem('ytdl_twitch_auto_download_chat')) {
-                            let vodId = url.split('twitch.tv/videos/')[1];
-                            vodId = vodId.split('?')[0];
-                            twitch_api.downloadTwitchChatByVODID(vodId, file_name, type, download['user_uid']);
-                    }
+                if (type === 'video' && url.includes('twitch.tv/videos/') && url.split('twitch.tv/videos/').length > 1
+                    && config_api.getConfigItem('ytdl_twitch_auto_download_chat')) {
+                        let vodId = url.split('twitch.tv/videos/')[1];
+                        vodId = vodId.split('?')[0];
+                        twitch_api.downloadTwitchChatByVODID(vodId, file_name, type, download['user_uid']);
+                }
 
-                    // renames file if necessary due to bug
-                    if (!fs.existsSync(output_json['_filename']) && fs.existsSync(output_json['_filename'] + '.webm')) {
-                        try {
-                            fs.renameSync(output_json['_filename'] + '.webm', output_json['_filename']);
-                            logger.info('Renamed ' + file_name + '.webm to ' + file_name);
-                        } catch(e) {
-                            logger.error(`Failed to rename file ${output_json['_filename']} to its appropriate extension.`);
-                        }
+                // renames file if necessary due to bug
+                if (!fs.existsSync(output_json['_filename']) && fs.existsSync(output_json['_filename'] + '.webm')) {
+                    try {
+                        fs.renameSync(output_json['_filename'] + '.webm', output_json['_filename']);
+                        logger.info('Renamed ' + file_name + '.webm to ' + file_name);
+                    } catch(e) {
+                        logger.error(`Failed to rename file ${output_json['_filename']} to its appropriate extension.`);
                     }
+                }
 
-                    if (type === 'audio') {
-                        let tags = {
-                            title: output_json['title'],
-                            artist: output_json['artist'] ? output_json['artist'] : output_json['uploader']
-                        }
-                        let success = NodeID3.write(tags, utils.removeFileExtension(output_json['_filename']) + '.mp3');
-                        if (!success) logger.error('Failed to apply ID3 tag to audio file ' + output_json['_filename']);
+                if (type === 'audio') {
+                    let tags = {
+                        title: output_json['title'],
+                        artist: output_json['artist'] ? output_json['artist'] : output_json['uploader']
                     }
+                    let success = NodeID3.write(tags, utils.removeFileExtension(output_json['_filename']) + '.mp3');
+                    if (!success) logger.error('Failed to apply ID3 tag to audio file ' + output_json['_filename']);
+                }
 
-                    if (config_api.getConfigItem('ytdl_generate_nfo_files')) {
-                        exports.generateNFOFile(output_json, `${filepath_no_extension}.nfo`);
-                    }
+                if (config_api.getConfigItem('ytdl_generate_nfo_files')) {
+                    exports.generateNFOFile(output_json, `${filepath_no_extension}.nfo`);
+                }
 
-                    if (options.cropFileSettings) {
-                        await utils.cropFile(full_file_path, options.cropFileSettings.cropFileStart, options.cropFileSettings.cropFileEnd, ext);
-                    }
+                if (options.cropFileSettings) {
+                    await utils.cropFile(full_file_path, options.cropFileSettings.cropFileStart, options.cropFileSettings.cropFileEnd, ext);
+                }
 
-                    // registers file in DB
-                    const file_obj = await files_api.registerFileDB(full_file_path, type, download['user_uid'], category, download['sub_id'] ? download['sub_id'] : null, options.cropFileSettings);
+                // registers file in DB
+                const file_obj = await files_api.registerFileDB(full_file_path, type, download['user_uid'], category, download['sub_id'] ? download['sub_id'] : null, options.cropFileSettings);
 
-                    await archive_api.addToArchive(output_json['extractor'], output_json['id'], type, output_json['title'], download['user_uid'], download['sub_id']);
+                await archive_api.addToArchive(output_json['extractor'], output_json['id'], type, output_json['title'], download['user_uid'], download['sub_id']);
 
-                    notifications_api.sendDownloadNotification(file_obj, download['user_uid']);
+                notifications_api.sendDownloadNotification(file_obj, download['user_uid']);
 
-                    file_objs.push(file_obj);
-                }
+                file_objs.push(file_obj);
+            }
 
-                let container = null;
-
-                if (file_objs.length > 1) {
-                    // create playlist
-                    const playlist_name = file_objs.map(file_obj => file_obj.title).join(', ');
-                    container = await files_api.createPlaylist(playlist_name, file_objs.map(file_obj => file_obj.uid), download['user_uid']);
-                } else if (file_objs.length === 1) {
-                    container = file_objs[0];
-                } else {
-                    const error_message = 'Downloaded file failed to result in metadata object.';
-                    logger.error(error_message);
-                    await handleDownloadError(download, error_message, 'no_metadata');
-                }
+            let container = null;
 
-                const file_uids = file_objs.map(file_obj => file_obj.uid);
-                await db_api.updateRecord('download_queue', {uid: download_uid}, {finished_step: true, finished: true, running: false, step_index: 3, percent_complete: 100, file_uids: file_uids, container: container});
-                resolve();
+            if (file_objs.length > 1) {
+                // create playlist
+                const playlist_name = file_objs.map(file_obj => file_obj.title).join(', ');
+                container = await files_api.createPlaylist(playlist_name, file_objs.map(file_obj => file_obj.uid), download['user_uid']);
+            } else if (file_objs.length === 1) {
+                container = file_objs[0];
+            } else {
+                const error_message = 'Downloaded file failed to result in metadata object.';
+                logger.error(error_message);
+                await handleDownloadError(download, error_message, 'no_metadata');
             }
-        });
+
+            const file_uids = file_objs.map(file_obj => file_obj.uid);
+            await db_api.updateRecord('download_queue', {uid: download_uid}, {finished_step: true, finished: true, running: false, step_index: 3, percent_complete: 100, file_uids: file_uids, container: container});
+            resolve(file_uids);
+        }
     });
 }
 
@@ -564,33 +549,9 @@ exports.getVideoInfoByURL = async (url, args = [], download_uid = null) => {
         new_args.push('--dump-json');
 
         youtubedl.exec(url, new_args, {maxBuffer: Infinity}, async (err, output) => {
-            if (output) {
-                let outputs = [];
-                try {
-                    for (let i = 0; i < output.length; i++) {
-                        let output_json = null;
-                        try {
-                            output_json = JSON.parse(output[i]);
-                        } catch(e) {
-                            output_json = null;
-                        }
-    
-                        if (!output_json) {
-                            continue;
-                        }
-
-                        outputs.push(output_json);
-                    }
-                    resolve(outputs.length === 1 ? outputs[0] : outputs);
-                } catch(e) {
-                    const error = `Error while retrieving info on video with URL ${url} with the following message: output JSON could not be parsed. Output JSON: ${output}`;
-                    logger.error(error);
-                    if (download_uid) {
-                        const download = await db_api.getRecord('download_queue', {uid: download_uid});
-                        await handleDownloadError(download, error, 'parse_failed');
-                    }
-                    resolve(null);
-                }
+            const parsed_output = utils.parseOutputJSON(output, err);
+            if (parsed_output) {
+                resolve(parsed_output);
             } else {
                 let error_message = `Error while retrieving info on video with URL ${url} with the following message: ${err}`;
                 if (err.stderr) error_message += `\n\n${err.stderr}`;

backend/package.json

@@ -4,7 +4,7 @@
   "description": "backend for YoutubeDL-Material",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "test": "mocha test --exit -s 1000",
     "start": "pm2-runtime --raw pm2.config.js",
     "debug": "set YTDL_MODE=debug && node app.js"
   },

backend/subscriptions.js

@@ -254,26 +254,15 @@ exports.getVideosForSub = async (sub, user_uid = null) => {
             }
 
             logger.verbose('Subscription: finished check for ' + sub.name);
-            if (err && !output) {
-                logger.error(err.stderr ? err.stderr : err.message);
-                if (err.stderr.includes('This video is unavailable') || err.stderr.includes('Private video')) {
-                    logger.info('An error was encountered with at least one video, backup method will be used.')
-                    try {
-                        const outputs = err.stdout.split(/\r\n|\r|\n/);
-                        const files_to_download = await handleOutputJSON(outputs, sub, user_uid);
-                        resolve(files_to_download);
-                    } catch(e) {
-                        logger.error('Backup method failed. See error below:');
-                        logger.error(e);
-                    }
-                } else {
-                    logger.error('Subscription check failed!');
-                }
-                resolve(false);
-            } else if (output) {
-                const files_to_download = await handleOutputJSON(output, sub, user_uid);
-                resolve(files_to_download);
-           }
+            const parsed_output = utils.parseOutputJSON(output, err);
+            if (!parsed_output) {
+                logger.error('Subscription check failed!');
+                resolve(null);
+                return;
+            }
+            const files_to_download = await handleOutputJSON(parsed_output, sub, user_uid);
+            resolve(files_to_download);
+            return;
         });
     }, err => {
         logger.error(err);
@@ -281,38 +270,24 @@ exports.getVideosForSub = async (sub, user_uid = null) => {
     });
 }
 
-async function handleOutputJSON(output, sub, user_uid) {
+async function handleOutputJSON(output_jsons, sub, user_uid) {
     if (config_api.getConfigItem('ytdl_subscriptions_redownload_fresh_uploads')) {
         await setFreshUploads(sub, user_uid);
         checkVideosForFreshUploads(sub, user_uid);
     }
 
-    if (output.length === 0 || (output.length === 1 && output[0] === '')) {
+    if (output_jsons.length === 0 || (output_jsons.length === 1 && output_jsons[0] === '')) {
         logger.verbose('No additional videos to download for ' + sub.name);
         return [];
     }
 
-    const output_jsons = [];
-    for (let i = 0; i < output.length; i++) {
-        let output_json = null;
-        try {
-            output_json = JSON.parse(output[i]);
-            output_jsons.push(output_json);
-        } catch(e) {
-            output_json = null;
-        }
-        if (!output_json) {
-            continue;
-        }
-    }
-
     const files_to_download = await getFilesToDownload(sub, output_jsons);
     const base_download_options = exports.generateOptionsForSubscriptionDownload(sub, user_uid);
 
     for (let j = 0; j < files_to_download.length; j++) {
         const file_to_download = files_to_download[j];
         file_to_download['formats'] = utils.stripPropertiesFromObject(file_to_download['formats'], ['format_id', 'filesize', 'filesize_approx']);  // prevent download object from blowing up in size
-        await downloader_api.createDownload(file_to_download['webpage_url'], sub.type || 'video', base_download_options, user_uid, sub.id, sub.name, file_to_download);
+        await downloader_api.createDownload(file_to_download['webpage_url'], sub.type || 'video', base_download_options, user_uid, sub.id, sub.name, [file_to_download]);
     }
 
     return files_to_download;

backend/test/tests.js

@@ -3,7 +3,8 @@ const assert = require('assert');
 const low = require('lowdb')
 const winston = require('winston');
 const path = require('path');
-
+const util = require('util');
+const exec = util.promisify(require('child_process').exec);
 
 const FileSync = require('lowdb/adapters/FileSync');
 
@@ -41,11 +42,13 @@ const subscriptions_api = require('../subscriptions');
 const archive_api = require('../archive');
 const categories_api = require('../categories');
 const files_api = require('../files');
+const youtubedl_api = require('../youtube-dl');
+const config_api = require('../config');
 const fs = require('fs-extra');
 const { uuid } = require('uuidv4');
 const NodeID3 = require('node-id3');
 
-db_api.initialize(db, users_db);
+db_api.initialize(db, users_db, 'local_db_test.json');
 
 const sample_video_json = {
     id: "Sample Video",
@@ -68,9 +71,9 @@ const sample_video_json = {
 }
 
 describe('Database', async function() {
-    describe('Import', async function() {
+    describe.skip('Import', async function() {
         // it('Migrate', async function() {
-        //     await db_api.connectToDB();
+        //     // await db_api.connectToDB();
         //     await db_api.removeAllRecords();
         //     const success = await db_api.importJSONToDB(db.value(), users_db.value());
         //     assert(success);
@@ -86,7 +89,7 @@ describe('Database', async function() {
         });
 
         it('Transfer to local', async function() {
-            await db_api.connectToDB();
+            // await db_api.connectToDB();
             await db_api.removeAllRecords('test');
             await db_api.insertRecordIntoTable('test', {test: 'test'});
 
@@ -114,7 +117,8 @@ describe('Database', async function() {
 
         for (const local_db_mode of local_db_modes) {
             let use_local_db = local_db_mode;
-            describe(`Use local DB - ${use_local_db}`, async function() {
+            const describe_skippable = use_local_db ? describe : describe.skip;
+            describe_skippable(`Use local DB - ${use_local_db}`, async function() {
                 beforeEach(async function() {
                     if (!use_local_db) {
                         this.timeout(120000);
@@ -167,7 +171,7 @@ describe('Database', async function() {
                     ];
                     await db_api.insertRecordsIntoTable('test', test_duplicates);
                     const duplicates = await db_api.findDuplicatesByKey('test', 'test');
-                    console.log(duplicates);
+                    assert(duplicates && duplicates.length === 2 && duplicates[0]['key'] === '2' && duplicates[1]['key'] === '4')
                 });
 
                 it('Update record', async function() {
@@ -279,7 +283,7 @@ describe('Database', async function() {
                     assert(stats);
                 });
 
-                it('Query speed', async function() {
+                it.skip('Query speed', async function() {
                     this.timeout(120000); 
                     const NUM_RECORDS_TO_ADD = 300004; // max batch ops is 1000
                     const test_records = [];
@@ -337,12 +341,13 @@ describe('Database', async function() {
 });
 
 describe('Multi User', async function() {
+    this.timeout(120000);
     const user_to_test = 'test_user';
     const user_password = 'test_pass';
     const sub_to_test = '';
     const playlist_to_test = '';
     beforeEach(async function() {
-        await db_api.connectToDB();
+        // await db_api.connectToDB();
         await auth_api.deleteUser(user_to_test);
     });
     describe('Basic', function() {
@@ -369,17 +374,17 @@ describe('Multi User', async function() {
 
         it('Video access - disallowed', async function() {
             await db_api.setVideoProperty(video_to_test, {sharingEnabled: false});
-            const video_obj = auth_api.getUserVideo(user_to_test, video_to_test, true);
+            const video_obj = await auth_api.getUserVideo(user_to_test, video_to_test, true);
             assert(!video_obj);
         });
 
         it('Video access - allowed', async function() {
             await db_api.setVideoProperty(video_to_test, {sharingEnabled: true}, user_to_test);
-            const video_obj = auth_api.getUserVideo(user_to_test, video_to_test, true);
+            const video_obj = await auth_api.getUserVideo(user_to_test, video_to_test, true);
             assert(video_obj);
         });
     });
-    describe('Zip generators', function() {
+    describe.skip('Zip generators', function() {
         it('Playlist zip generator', async function() {
             const playlist = await files_api.getPlaylist(playlist_to_test, user_to_test);
             assert(playlist);
@@ -435,35 +440,50 @@ describe('Multi User', async function() {
     
 describe('Downloader', function() {
     const downloader_api = require('../downloader');
-    const url = 'https://www.youtube.com/watch?v=dQw4w9WgXcQ';
+    const url = 'https://www.youtube.com/watch?v=hpigjnKl7nI';
     const sub_id = 'dc834388-3454-41bf-a618-e11cb8c7de1c';
     const options = {
-        ui_uid: uuid(),
-        user: 'admin'
+        ui_uid: uuid()
     }
 
+    before(async function() {
+        const update_available = await youtubedl_api.checkForYoutubeDLUpdate();
+        if (update_available) await youtubedl_api.updateYoutubeDL(update_available);
+        config_api.setConfigItem('ytdl_max_concurrent_downloads', 0);
+    });
+
     beforeEach(async function() {
-        await db_api.connectToDB();
+        // await db_api.connectToDB();
         await db_api.removeAllRecords('download_queue');
     });
 
     it('Get file info', async function() {
         this.timeout(300000);
         const info = await downloader_api.getVideoInfoByURL(url);
-        assert(!!info);
+        assert(!!info && info.length > 0);
     });
 
     it('Download file', async function() {
-        this.timeout(300000); 
+        this.timeout(300000);
+        await downloader_api.setupDownloads();
+        const args = await downloader_api.generateArgs(url, 'video', options, null, true);
+        const [info] = await downloader_api.getVideoInfoByURL(url, args);
+        if (fs.existsSync(info['_filename'])) fs.unlinkSync(info['_filename']);
         const returned_download = await downloader_api.createDownload(url, 'video', options);
-        console.log(returned_download);
-        await utils.wait(20000);
-
+        assert(returned_download);
+        const custom_download_method = async (url, args, options, callback) => {
+            fs.writeJSONSync(utils.getTrueFileName(info['_filename'], 'video', '.info.json'), info);
+            await generateEmptyVideoFile(info['_filename']);
+            return await callback(null, [JSON.stringify(info)]);
+        }
+        const success = await downloader_api.downloadQueuedFile(returned_download['uid'], custom_download_method);
+        assert(success);
     });
 
     it('Tag file', async function() {
-        const audio_path = './test/sample.mp3';
-        const sample_json = fs.readJSONSync('./test/sample.info.json');
+        const success = await generateEmptyAudioFile('test/sample_mp3.mp3');
+        const audio_path = './test/sample_mp3.mp3';
+        const sample_json = fs.readJSONSync('./test/sample_mp3.info.json');
         const tags = {
             title: sample_json['title'],
             artist: sample_json['artist'] ? sample_json['artist'] : sample_json['uploader'],
@@ -471,14 +491,13 @@ describe('Downloader', function() {
         }
         NodeID3.write(tags, audio_path);
         const written_tags = NodeID3.read(audio_path);
-        assert(written_tags['raw']['TRCK'] === '27');
+        assert(success && written_tags['raw']['TRCK'] === '27');
     });
 
     it('Queue file', async function() {
         this.timeout(300000); 
-        const returned_download = await downloader_api.createDownload(url, 'video', options);
-        console.log(returned_download);
-        await utils.wait(20000);
+        const returned_download = await downloader_api.createDownload(url, 'video', options, null, null, null, null, true);
+        assert(returned_download);
     });
 
     it('Pause file', async function() {
@@ -493,7 +512,7 @@ describe('Downloader', function() {
         assert(args.length > 0);
     });
 
-    it('Generate args - subscription', async function() {
+    it.skip('Generate args - subscription', async function() {
         const sub = await subscriptions_api.getSubscription(sub_id);
         const sub_options = subscriptions_api.generateOptionsForSubscriptionDownload(sub, 'admin');
         const args_normal = await downloader_api.generateArgs(url, 'video', options);
@@ -506,7 +525,7 @@ describe('Downloader', function() {
         if (fs.existsSync(nfo_file_path)) {
             fs.unlinkSync(nfo_file_path);
         }
-        const sample_json = fs.readJSONSync('./test/sample.info.json');
+        const sample_json = fs.readJSONSync('./test/sample_mp4.info.json');
         downloader_api.generateNFOFile(sample_json, nfo_file_path);
         assert(fs.existsSync(nfo_file_path), true);
         fs.unlinkSync(nfo_file_path);
@@ -534,10 +553,18 @@ describe('Downloader', function() {
     describe('Twitch', async function () {
         const twitch_api = require('../twitch');
         const example_vod = '1710641401';
-        it('Download VOD', async function() {
+        it('Download VOD chat', async function() {
+            this.timeout(300000);
+            if (!fs.existsSync('TwitchDownloaderCLI')) {
+                try {
+                    await exec('sh ../docker-utils/fetch-twitchdownloader.sh');
+                    fs.copyFileSync('../docker-utils/TwitchDownloaderCLI', 'TwitchDownloaderCLI');
+                } catch (e) {
+                    logger.info('TwitchDownloaderCLI fetch failed, file may exist regardless.');
+                }
+            }
             const sample_path = path.join('test', 'sample.twitch_chat.json');
             if (fs.existsSync(sample_path)) fs.unlinkSync(sample_path);
-            this.timeout(300000);
             await twitch_api.downloadTwitchChatByVODID(example_vod, 'sample', null, null, null, './test');
             assert(fs.existsSync(sample_path));
 
@@ -550,7 +577,7 @@ describe('Downloader', function() {
 describe('Tasks', function() {
     const tasks_api = require('../tasks');
     beforeEach(async function() {
-        await db_api.connectToDB();
+        // await db_api.connectToDB();
         await db_api.removeAllRecords('tasks');
 
         const dummy_task = {
@@ -569,7 +596,7 @@ describe('Tasks', function() {
         await tasks_api.executeTask('backup_local_db');
         const backups_new = await utils.recFindByExt('appdata', 'bak');
         const new_length = backups_new.length;
-        assert(original_length, new_length-1);
+        assert(original_length === new_length-1);
     });
 
     it('Check for missing files', async function() {
@@ -579,7 +606,7 @@ describe('Tasks', function() {
         await db_api.insertRecordIntoTable('files', test_missing_file);
         await tasks_api.executeTask('missing_files_check');
         const missing_file_db_record = await db_api.getRecord('files', {uid: 'test'});
-        assert(!missing_file_db_record, true);
+        assert(!missing_file_db_record);
     });
 
     it('Check for duplicate files', async function() {
@@ -599,27 +626,29 @@ describe('Tasks', function() {
 
         await tasks_api.executeTask('duplicate_files_check');
         const duplicated_record_count = await db_api.getRecords('files', {path: 'test/missing_file.mp4'}, true);
-        assert(duplicated_record_count == 1, true);
+        assert(duplicated_record_count === 1);
     });
 
     it('Import unregistered files', async function() {
         this.timeout(300000);
 
+        const success = await generateEmptyVideoFile('test/sample_mp4.mp4');
+
         // pre-test cleanup
         await db_api.removeAllRecords('files', {title: 'Sample File'});
-        if (fs.existsSync('video/sample.info.json')) fs.unlinkSync('video/sample.info.json');
-        if (fs.existsSync('video/sample.mp4'))       fs.unlinkSync('video/sample.mp4');
+        if (fs.existsSync('video/sample_mp4.info.json')) fs.unlinkSync('video/sample_mp4.info.json');
+        if (fs.existsSync('video/sample_mp4.mp4'))       fs.unlinkSync('video/sample_mp4.mp4');
 
         // copies in files
-        fs.copyFileSync('test/sample.info.json', 'video/sample.info.json');
-        fs.copyFileSync('test/sample.mp4', 'video/sample.mp4');
+        fs.copyFileSync('test/sample_mp4.info.json', 'video/sample_mp4.info.json');
+        fs.copyFileSync('test/sample_mp4.mp4', 'video/sample_mp4.mp4');
         await tasks_api.executeTask('missing_db_records');
         const imported_file = await db_api.getRecord('files', {title: 'Sample File'});
-        assert(!!imported_file === true);
+        assert(success && !!imported_file);
         
         // post-test cleanup
-        if (fs.existsSync('video/sample.info.json')) fs.unlinkSync('video/sample.info.json');
-        if (fs.existsSync('video/sample.mp4'))       fs.unlinkSync('video/sample.mp4');
+        if (fs.existsSync('video/sample_mp4.info.json')) fs.unlinkSync('video/sample_mp4.info.json');
+        if (fs.existsSync('video/sample_mp4.mp4'))       fs.unlinkSync('video/sample_mp4.mp4');
     });
 
     it('Schedule and cancel task', async function() {
@@ -659,12 +688,12 @@ describe('Tasks', function() {
 
 describe('Archive', async function() {
     beforeEach(async function() {
-        await db_api.connectToDB();
-        await db_api.removeAllRecords('archives', {user_uid: 'test_user'});
+        // await db_api.connectToDB();
+        await db_api.removeAllRecords('archives');
     });
 
     afterEach(async function() {
-        await db_api.removeAllRecords('archives', {user_uid: 'test_user'});
+        await db_api.removeAllRecords('archives');
     });
 
     it('Import archive', async function() {
@@ -678,7 +707,6 @@ describe('Archive', async function() {
         const count = await archive_api.importArchiveFile(archive_text, 'video', 'test_user', 'test_sub');
         assert(count === 4)
         const archive_items = await db_api.getRecords('archives', {user_uid: 'test_user', sub_id: 'test_sub'});
-        console.log(archive_items);
         assert(archive_items.length === 4);
         assert(archive_items.filter(archive_item => archive_item.extractor === 'testextractor2').length === 1);
         assert(archive_items.filter(archive_item => archive_item.extractor === 'testextractor1').length === 3);
@@ -709,9 +737,9 @@ describe('Archive', async function() {
     });
 
     it('Remove from archive', async function() {
-        await archive_api.addToArchive('testextractor1', 'testing1', 'video', 'test_user');
-        await archive_api.addToArchive('testextractor2', 'testing1', 'video', 'test_user');
-        await archive_api.addToArchive('testextractor2', 'testing2', 'video', 'test_user');
+        await archive_api.addToArchive('testextractor1', 'testing1', 'video', 'test_title', 'test_user');
+        await archive_api.addToArchive('testextractor2', 'testing1', 'video', 'test_title', 'test_user');
+        await archive_api.addToArchive('testextractor2', 'testing2', 'video', 'test_title', 'test_user');
 
         const success = await archive_api.removeFromArchive('testextractor2', 'testing1', 'video', 'test_user');
         assert(success);
@@ -757,7 +785,7 @@ describe('Utils', async function() {
 
 describe('Categories', async function() {
     beforeEach(async function() {
-        await db_api.connectToDB();
+        // await db_api.connectToDB();
         const new_category = {
             name: 'test_category',
             uid: uuid(),
@@ -805,7 +833,6 @@ describe('Categories', async function() {
         });
 
         const category = await categories_api.categorize([sample_video_json]);
-        console.log(category);
         assert(category && category.name === 'test_category');
     });
 
@@ -858,4 +885,14 @@ describe('Categories', async function() {
         const category = await categories_api.categorize([sample_video_json]);
         assert(category);
     });
-});
+});
+
+const generateEmptyVideoFile = async (file_path) => {
+    if (fs.existsSync(file_path)) fs.unlinkSync(file_path);
+    return await exec(`ffmpeg -t 1 -f lavfi -i color=c=black:s=640x480 -c:v libx264 -tune stillimage -pix_fmt yuv420p "${file_path}"`);
+}
+
+const generateEmptyAudioFile = async (file_path) => {
+    if (fs.existsSync(file_path)) fs.unlinkSync(file_path);
+    return await exec(`ffmpeg -f lavfi -i anullsrc=r=44100:cl=mono -t 1 -q:a 9 -acodec libmp3lame ${file_path}`);
+}

backend/utils.js

@@ -13,7 +13,7 @@ const CONSTS = require('./consts');
 const is_windows = process.platform === 'win32';
 
 // replaces .webm with appropriate extension
-exports.getTrueFileName = (unfixed_path, type) => {
+exports.getTrueFileName = (unfixed_path, type, force_ext = null) => {
     let fixed_path = unfixed_path;
 
     const new_ext = (type === 'audio' ? 'mp3' : 'mp4');
@@ -22,7 +22,7 @@ exports.getTrueFileName = (unfixed_path, type) => {
 
 
     if (old_ext !== new_ext) {
-        unfixed_parts[unfixed_parts.length-1] = new_ext;
+        unfixed_parts[unfixed_parts.length-1] = force_ext || new_ext;
         fixed_path = unfixed_parts.join('.');
     }
     return fixed_path;
@@ -347,7 +347,7 @@ exports.checkExistsWithTimeout = async (filePath, timeout) => {
             if (!err) {
                 clearTimeout(timer);
                 if (watcher) watcher.close();
-                resolve();
+                resolve(true);
             }
         });
 
@@ -357,7 +357,7 @@ exports.checkExistsWithTimeout = async (filePath, timeout) => {
             if (eventType === 'rename' && filename === basename) {
                 clearTimeout(timer);
                 if (watcher) watcher.close();
-                resolve();
+                resolve(true);
             }
         });
     });
@@ -530,6 +530,40 @@ exports.getDirectoriesInDirectory = async (basePath) => {
     }
 }
 
+exports.parseOutputJSON = (output, err) => {
+    let split_output = [];
+    // const output_jsons = [];
+    if (err && !output) {
+        if (!err.stderr.includes('This video is unavailable') && !err.stderr.includes('Private video')) {
+            return null;
+        }
+        logger.info('An error was encountered with at least one video, backup method will be used.')
+        try {
+            split_output = err.stdout.split(/\r\n|\r|\n/);
+        } catch (e) {
+            logger.error('Backup method failed. See error below:');
+            logger.error(e);
+            return null;
+        }
+    } else if (output.length === 0 || (output.length === 1 && output[0].length === 0)) {
+        // output is '' or ['']
+        return [];
+    } else {
+        for (const output_item of output) {
+            // we have to do this because sometimes there will be leading characters before the actual json
+            const start_idx = output_item.indexOf('{"');
+            const clean_output = output_item.slice(start_idx, output_item.length);
+            split_output.push(clean_output);
+        }
+    }
+
+    try {
+        return split_output.map(split_output_str => JSON.parse(split_output_str));
+    } catch(e) {
+        return null;
+    }
+}
+
 // objects
 
 function File(id, title, thumbnailURL, isAudio, duration, url, uploader, size, path, upload_date, description, view_count, height, abr) {

backend/youtube-dl.js

@@ -5,6 +5,7 @@ const logger = require('./logger');
 const utils = require('./utils');
 const CONSTS = require('./consts');
 const config_api = require('./config.js');
+const youtubedl = require('youtube-dl');
 
 const OUTDATED_VERSION = "2020.00.00";
 
@@ -25,6 +26,15 @@ const download_sources = {
     }
 }
 
+exports.runYoutubeDL = async (url, args, downloadMethod = youtubedl.exec) => {
+    return new Promise(resolve => {
+        downloadMethod(url, args, {maxBuffer: Infinity}, async function(err, output) {
+            const parsed_output = utils.parseOutputJSON(output, err);
+            resolve({parsed_output, err});
+        });
+    });
+}
+
 exports.checkForYoutubeDLUpdate = async () => {
     return new Promise(async resolve => {
         const default_downloader = config_api.getConfigItem('ytdl_default_downloader');

src/app/components/downloads/downloads.component.ts

@@ -78,12 +78,6 @@ export class DownloadsComponent implements OnInit, OnDestroy {
       show: (download: Download) => !download.finished && download.paused && download.finished_step,
       icon: 'play_arrow'
     },
-    {
-      tooltip: $localize`Resume`,
-      action: (download: Download) => this.resumeDownload(download),
-      show: (download: Download) => !download.finished && download.paused && download.finished_step,
-      icon: 'play_arrow'
-    },
     {
       tooltip: $localize`Cancel`,
       action: (download: Download) => this.cancelDownload(download),