import { unitToRadius } from '../../../src/modules/geo';

const METER_TO_MILE = 1609.34;

describe('unitToRadius', () => {
  it('converts to square meters', () => {
    expect(unitToRadius('square_m', 4 * Math.PI)).toBe(2);
  });
  it('converts to square kilometers', () => {
    expect(unitToRadius('square_km', 25 * Math.PI)).toBe(5000);
  });
  it('converts to radius meters', () => {
    expect(unitToRadius('radius_m', 1000)).toBe(1000);
  });
  it('converts to radius km', () => {
    expect(unitToRadius('radius_km', 1)).toBe(1000);
  });
  it('converts to radius miles', () => {
    expect(unitToRadius('radius_miles', 1)).toBe(METER_TO_MILE);
  });
  it('converts to square miles', () => {
    expect(unitToRadius('square_miles', 25 * Math.PI)).toBe(5000 * (METER_TO_MILE / 1000));
  });
});