import { TimeConverter } from '../../../domain/entities/time-converter';

describe('TimeConverter', () => {
  it('should be defined', () => {
    expect(new TimeConverter()).toBeDefined();
  });

  it('should convert a Europe/Paris datetime to utc datetime', () => {
    expect(
      TimeConverter.toUtcDatetime(
        new Date('2023-05-01'),
        '07:00',
        'Europe/Paris',
      ).getUTCHours(),
    ).toBe(6);
  });

  it('should return undefined when trying to convert a Europe/Paris datetime to utc datetime without a valid date', () => {
    expect(
      TimeConverter.toUtcDatetime(undefined, '07:00', 'Europe/Paris'),
    ).toBeUndefined();
    expect(
      TimeConverter.toUtcDatetime(
        new Date('2023-13-01'),
        '07:00',
        'Europe/Paris',
      ),
    ).toBeUndefined();
  });

  it('should return undefined when trying to convert a Europe/Paris datetime to utc datetime without a valid time', () => {
    expect(
      TimeConverter.toUtcDatetime(
        new Date('2023-05-01'),
        undefined,
        'Europe/Paris',
      ),
    ).toBeUndefined();
    expect(
      TimeConverter.toUtcDatetime(new Date('2023-05-01'), 'a', 'Europe/Paris'),
    ).toBeUndefined();
  });

  it('should return undefined when trying to convert a datetime to utc datetime without a valid timezone', () => {
    expect(
      TimeConverter.toUtcDatetime(
        new Date('2023-12-01'),
        '07:00',
        'OlympusMons/Mars',
      ),
    ).toBeUndefined();
  });
});