import { expect } from 'expect';
-import { ACElectricUtils, DCElectricUtils } from '../../src/utils/ElectricUtils';
+import { ACElectricUtils, DCElectricUtils } from '../../src/utils/ElectricUtils.js';
await describe('ElectricUtils test suite', async () => {
await it('Verify DCElectricUtils.power()', () => {