@maplibre/maplibre-gl-style-spec/src/format.test.ts

a specification for maplibre styles

import {format} from './format';
import {describe, test, expect} from 'vitest';
function roundtrip(style) {
    return JSON.parse(format(style));
}

describe('format', () => {
    test('orders top-level keys', () => {
        expect(
            Object.keys(
                roundtrip({
                    layers: [],
                    other: {},
                    sources: {},
                    glyphs: '',
                    sprite: '',
                    version: 6
                })
            )
        ).toEqual(['version', 'sources', 'sprite', 'glyphs', 'layers', 'other']);
    });

    test('orders layer keys', () => {
        expect(
            Object.keys(
                roundtrip({
                    layers: [
                        {
                            paint: {},
                            layout: {},
                            id: 'id',
                            type: 'type'
                        }
                    ]
                }).layers[0]
            )
        ).toEqual(['id', 'type', 'layout', 'paint']);
    });
});