Refactor tests to TS.

.prettierrc

@@ -7,6 +7,7 @@
     "endOfLine": "lf",
     "tabWidth": 4,
     "importOrder": [
+        "^[./]*/mocks",
         "",
         "<TYPES>^(node:)",
         "",

index.js

@@ -148,7 +148,7 @@ async function start() {
         return exit(1);
     }
 
-    const Controller = require('./dist/controller');
+    const {Controller} = require('./dist/controller');
     controller = new Controller(restart, exit);
 
     await controller.start();

lib/controller.ts

@@ -366,5 +366,3 @@ export class Controller {
         }
     }
 }
-
-module.exports = Controller;

lib/util/utils.ts

@@ -10,17 +10,18 @@ import humanizeDuration from 'humanize-duration';
 
 import data from './data';
 
+function pad(num: number): string {
+    const norm = Math.floor(Math.abs(num));
+    return (norm < 10 ? '0' : '') + norm;
+}
+
 // construct a local ISO8601 string (instead of UTC-based)
 // Example:
 //  - ISO8601 (UTC) = 2019-03-01T15:32:45.941+0000
 //  - ISO8601 (local) = 2019-03-01T16:32:45.941+0100 (for timezone GMT+1)
 function toLocalISOString(date: Date): string {
     const tzOffset = -date.getTimezoneOffset();
     const plusOrMinus = tzOffset >= 0 ? '+' : '-';
-    const pad = (num: number): string => {
-        const norm = Math.floor(Math.abs(num));
-        return (norm < 10 ? '0' : '') + norm;
-    };
 
     return (
         date.getFullYear() +

lib/util/yaml.ts

@@ -1,3 +1,4 @@
+import assert from 'assert';
 import fs from 'fs';
 
 import equals from 'fast-deep-equal/es6';
@@ -20,7 +21,8 @@ export class YAMLFileException extends YAMLException {
 function read(file: string): KeyValue {
     try {
         const result = yaml.load(fs.readFileSync(file, 'utf8'));
-        return (result as KeyValue) ?? {};
+        assert(result instanceof Object);
+        return result as KeyValue;
     } catch (error) {
         if (error instanceof YAMLException) {
             throw new YAMLFileException(error, file);

test/data.test.js → test/data.test.ts

@@ -1,8 +1,8 @@
-const logger = require('./stub/logger');
-const data = require('../lib/util/data').default;
-const path = require('path');
-const tmp = require('tmp');
-const fs = require('fs');
+import path from 'path';
+
+import tmp from 'tmp';
+
+import data from '../lib/util/data';
 
 describe('Data', () => {
     describe('Get path', () => {