beeeeg update

src/lib/geo.test.ts

@@ -0,0 +1,10 @@
+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);
+	});
+});