maplibre-gl/src/source/tile_id.test.ts

BSD licensed community fork of mapbox-gl, a WebGL interactive maps library

import {CanonicalTileID, OverscaledTileID} from '../source/tile_id';

describe('CanonicalTileID', () => {
    test('#constructor', () => {
        expect(() => {
            /*eslint no-new: 0*/
            new CanonicalTileID(-1, 0, 0);
        }).toThrow();
        expect(() => {
            /*eslint no-new: 0*/
            new CanonicalTileID(26, 0, 0);
        }).toThrow();
        expect(() => {
            /*eslint no-new: 0*/
            new CanonicalTileID(2, 4, 0);
        }).toThrow();
        expect(() => {
            /*eslint no-new: 0*/
            new CanonicalTileID(2, 0, 4);
        }).toThrow();
    });

    test('.key', () => {
        expect(new CanonicalTileID(0, 0, 0).key).toBe('000');
        expect(new CanonicalTileID(1, 0, 0).key).toBe('011');
        expect(new CanonicalTileID(1, 1, 0).key).toBe('111');
        expect(new CanonicalTileID(1, 1, 1).key).toBe('311');
    });

    test('.equals', () => {
        expect(new CanonicalTileID(3, 2, 1).equals(new CanonicalTileID(3, 2, 1))).toBeTruthy();
        expect(new CanonicalTileID(9, 2, 3).equals(new CanonicalTileID(3, 2, 1))).toBeFalsy();
    });

    test('.url replaces {z}/{x}/{y}', () => {
        expect(new CanonicalTileID(2, 1, 0).url(['{z}/{x}/{y}.json'], 1)).toBe('2/1/0.json');
    });

    test('.url replaces {quadkey}', () => {
        expect(new CanonicalTileID(1, 0, 0).url(['quadkey={quadkey}'], 1)).toBe('quadkey=0');
        expect(new CanonicalTileID(2, 0, 0).url(['quadkey={quadkey}'], 1)).toBe('quadkey=00');
        expect(new CanonicalTileID(2, 1, 1).url(['quadkey={quadkey}'], 1)).toBe('quadkey=03');
        expect(new CanonicalTileID(17, 22914, 52870).url(['quadkey={quadkey}'], 1)).toBe('quadkey=02301322130000230');

        // Test case confirmed by quadkeytools package
        expect(new CanonicalTileID(6, 29, 3).url(['quadkey={quadkey}'], 1)).toBe('quadkey=011123');

    });

    test('.url replaces {bbox-epsg-3857}', () => {
        expect(new CanonicalTileID(1, 0, 0).url(['bbox={bbox-epsg-3857}'], 1)).toBe('bbox=-20037508.342789244,0,0,20037508.342789244');
    });

    test('.url replaces {ratio}', () => {
        expect(new CanonicalTileID(1, 0, 0).url(['r={ratio}'], 2)).toBe('r=@2x');
        expect(new CanonicalTileID(1, 0, 0).url(['r={ratio}'], 1)).toBe('r=');
    });

    //Tests that multiple values of the same placeholder are replaced.
    test('.url replaces {z}/{x}/{y}/{z}/{x}/{y}', () => {
        expect(new CanonicalTileID(2, 1, 0).url(['{z}/{x}/{y}/{z}/{x}/{y}.json'], 1)).toBe('2/1/0/2/1/0.json');
    });

});

describe('OverscaledTileID', () => {
    test('#constructor', () => {
        expect(new OverscaledTileID(0, 0, 0, 0, 0) instanceof OverscaledTileID).toBeTruthy();
        expect(() => {
            /*eslint no-new: 0*/
            new OverscaledTileID(7, 0, 8, 0, 0);
        }).toThrow();
    });

    test('.key', () => {
        expect(new OverscaledTileID(0, 0, 0, 0, 0).key).toBe('000');
        expect(new OverscaledTileID(1, 0, 1, 0, 0).key).toBe('011');
        expect(new OverscaledTileID(1, 0, 1, 1, 0).key).toBe('111');
        expect(new OverscaledTileID(1, 0, 1, 1, 1).key).toBe('311');
        expect(new OverscaledTileID(1, -1, 1, 1, 1).key).toBe('711');
    });

    test('.toString', () => {
        expect(new OverscaledTileID(1, 0, 1, 1, 1).toString()).toBe('1/1/1');
    });

    test('.children', () => {
        expect(new OverscaledTileID(0, 0, 0, 0, 0).children(25)).toEqual([
            new OverscaledTileID(1, 0, 1, 0, 0),
            new OverscaledTileID(1, 0, 1, 1, 0),
            new OverscaledTileID(1, 0, 1, 0, 1),
            new OverscaledTileID(1, 0, 1, 1, 1)]);
        expect(new OverscaledTileID(0, 0, 0, 0, 0).children(0)).toEqual([new OverscaledTileID(1, 0, 0, 0, 0)]);
    });

    test('.scaledTo returns a parent', () => {
        expect(new OverscaledTileID(2, 0, 2, 0, 0).scaledTo(0)).toEqual(new OverscaledTileID(0, 0, 0, 0, 0));
        expect(new OverscaledTileID(1, 0, 1, 0, 0).scaledTo(0)).toEqual(new OverscaledTileID(0, 0, 0, 0, 0));
        expect(new OverscaledTileID(1, 0, 0, 0, 0).scaledTo(0)).toEqual(new OverscaledTileID(0, 0, 0, 0, 0));
    });

    test('.isChildOf', () => {
        expect(
            new OverscaledTileID(2, 0, 2, 0, 0).isChildOf(new OverscaledTileID(0, 0, 0, 0, 0))
        ).toBeTruthy();
        expect(
            new OverscaledTileID(2, 0, 2, 0, 0).isChildOf(new OverscaledTileID(0, 1, 0, 0, 0))
        ).toBeFalsy();
    });

});