import aggregationPeriodsService, { MONTHLY, QUARTERLY, YEARLY } from 'app/shared/services/aggregationPeriods/aggregationPeriods.service';

describe('Aggregation periods tests', () => {

  const UNKNOWN_PERIOD = 666;

  it('returns 3 periods', () => {
    expect(aggregationPeriodsService.getAggregationPeriods().length).toEqual(3);
  });

  it('returns name for monthly period', () => {
    expect(aggregationPeriodsService.getAggregationPeriodName(MONTHLY)).not.toBeNull();
  });

  it('returns name for quarterly period', () => {
    expect(aggregationPeriodsService.getAggregationPeriodName(QUARTERLY)).not.toBeNull();
  });

  it('returns name for yearly period', () => {
    expect(aggregationPeriodsService.getAggregationPeriodName(YEARLY)).not.toBeNull();
  });

  it('throws error for unknown period', () => {
    expect(() => {
      aggregationPeriodsService.getAggregationPeriodName(UNKNOWN_PERIOD);
    }).toThrow();
  });
});