Add unit test

test/unit/utils/config.spec.ts

@@ -12,21 +12,26 @@
  * Removal or modification of this copyright notice is prohibited.
  */
 import * as fs from 'fs-extra';
-import { resolve } from 'path';
+import { resolve, join } from 'path';
 import { ApplicationConfig } from 'lisk-framework';
 import { configV3, configV4 } from '../fixtures/config';
 import {
  migrateUserConfig,
  validateConfig,
  writeConfig,
  resolveConfigPathByNetworkID,
+ createBackup,
 } from '../../../src/utils/config';
 import { ApplicationConfigV3 } from '../../../src/types';
 
 describe('Migrate user configuration', () => {
  const migratedConfigFilePath = `${process.cwd()}/test/config`;
+ const backupPath = join(__dirname, '../../..', 'backup');
 
- afterAll(() => fs.removeSync(migratedConfigFilePath));
+ afterAll(() => {
+ fs.removeSync(migratedConfigFilePath);
+ fs.removeSync(backupPath);
+ });
 
  it('should migrate user configuration', async () => {
  const snapshotHeight = 10815;
@@ -64,3 +69,11 @@ describe('Test resolveConfigPathByNetworkID method', () => {
  await expect(resolveConfigPathByNetworkID('invalid')).rejects.toThrow();
  });
 });
+
+describe('Test createBackup method', () => {
+ it('should create backup', async () => {
+ const backupPath = join(__dirname, '../../..', 'backup');
+ await createBackup((configV3 as unknown) as ApplicationConfigV3);
+ expect(fs.existsSync(backupPath)).toBe(true);
+ });
+});