orbis-core/test/index.test.ts

// import * as fc from 'fast-check';
import { describe, it, expect } from 'vitest';
import * as orbisCore from '../src';

describe('orbis-core', () => {
  describe('project', () => {
    it('throws error for invalid coordinates', () => {
      expect(() => orbisCore.project([-181, 90], ['Equirectangular'])).toThrowError(RangeError);
      expect(() => orbisCore.project([181, 90], ['Equirectangular'])).toThrowError(RangeError);
      expect(() => orbisCore.project([-180, 91], ['Equirectangular'])).toThrowError(RangeError);
      expect(() => orbisCore.project([-180, -91], ['Equirectangular'])).toThrowError(RangeError);
    });

    it('returns identity for equirectangular', () => {
      // fc.assert(
      //   fc.property(
      //     fc.tuple(
      //       fc.float().filter((c) => -180 <= c && c <= 180),
      //       fc.float().filter((c) => -180 <= c && c <= 180),
      //     ),
      //     (coords) => {
      //       expect(orbisCore.project(coords, 'Equirectangular')).toEqual(coords);
      //     },
      //   ),
      // );

      [
        [0, 0] as [number, number],
        [45, 45] as [number, number],
        [90, 90] as [number, number],
      ]
        .forEach((coords) => {
          expect(orbisCore.project(coords, ['Equirectangular'])).toEqual(coords);
        });
    });

    it('returns coords for other projections', () => {
      // fc.assert(
      //   fc.property(
      //     fc.tuple(
      //       fc.float().filter((c) => -180 <= c && c <= 180),
      //       fc.float().filter((c) => -180 <= c && c <= 180),
      //     ),
      //     (coords) => {
      //       expect(orbisCore.project(coords, 'Equirectangular')).toEqual(coords);
      //     },
      //   ),
      // );

      [
        [0, 0] as [number, number],
        [45, 45] as [number, number],
        [90, 90] as [number, number],
      ]
        .forEach((coords) => {
          expect(orbisCore.project(coords, ['Mercator'])).toEqual([
            expect.any(Number),
            expect.any(Number),
          ]);
        });
    });
  });
});