import { describe, expect, it } from 'vitest';
import { distanceMeters } from './geo';

describe('distanceMeters', () => {
	it('keeps nearby sightings within the 30 km limit and rejects distant ones', () => {
		expect(distanceMeters(52.009, 4.708, 52.009, 4.708)).toBe(0);
		expect(distanceMeters(52.009, 4.708, 52.01, 4.71)).toBeLessThan(30_000);
		expect(distanceMeters(52.009, 4.708, 52.37, 4.9)).toBeGreaterThan(30_000);
	});
});