Files
TREK/client/src/components/Map/glRasterLayers.test.ts
T
Maurice 008aaeb408 fix(tours): say to zoom in when the pistes are on further out than they draw
The pistes overlay has no tiles below zoom 9, so switching it on at a region
or country view left the map empty while the switch looked on, which read as
broken. Both maps now report their zoom with the viewport, on the 256 px tile
scale raster sources count in (a GL map's own zoom is one step lower there),
and the planner hands it to its overlays. While the pistes are on and the map
is further out than their first tiles, the switch stays pressed in the soft
accent, its tooltip and the key's first line say to zoom in, and the screen
reader hears it once. An unknown zoom claims nothing.
2026-10-20 15:06:05 +02:00

63 lines
2.8 KiB
TypeScript

import { describe, expect, it, vi } from 'vitest';
import { applyBaseLayer, rasterTileZoom, tourRasterSourceId } from './glRasterLayers';
/** Enough of a GL map for the base layers: sources, layers with their visibility, and the style's order. */
function fakeMap(styleLayers: Array<{ id: string }> = [{ id: 'water' }, { id: 'trip-route' }]) {
const sources = new Map<string, Record<string, unknown>>();
const layers = new Map<string, string>();
const map = {
getSource: vi.fn((id: string) => sources.get(id)),
addSource: vi.fn((id: string, source: Record<string, unknown>) => sources.set(id, source)),
getLayer: vi.fn((id: string) => (layers.has(id) ? { id } : undefined)),
addLayer: vi.fn((layer: { id: string }, _before?: string) => layers.set(layer.id, 'visible')),
setLayoutProperty: vi.fn((id: string, _key: string, value: string) => layers.set(id, value)),
getStyle: vi.fn(() => ({ layers: styleLayers })),
};
return { map, sources, layers };
}
describe('applyBaseLayer (MAP-01)', () => {
it('lays OpenHikingMap with its credit under the first thing TREK draws', () => {
const { map, sources } = fakeMap();
applyBaseLayer(map, 'hiking');
expect(tourRasterSourceId('hiking')).toBe('trip-hiking');
expect(sources.get('trip-hiking')).toMatchObject({
type: 'raster',
tiles: ['https://tile.openmaps.fr/openhikingmap/{z}/{x}/{y}.png'],
maxzoom: 18,
});
expect(String(sources.get('trip-hiking')?.attribution)).toContain('openmaps.fr/donate');
expect(map.addLayer).toHaveBeenCalledWith(expect.objectContaining({ id: 'trip-hiking-raster' }), 'trip-route');
// Nothing else is built while it is off.
expect(sources.has('trip-topo')).toBe(false);
expect(sources.has('trip-satellite')).toBe(false);
});
it('switching away hides it, and back shows the same layer again without a second source', () => {
const { map, layers } = fakeMap();
applyBaseLayer(map, 'hiking');
applyBaseLayer(map, 'topo');
expect(layers.get('trip-hiking-raster')).toBe('none');
expect(layers.get('trip-topo-raster')).toBe('visible');
applyBaseLayer(map, 'hiking');
expect(layers.get('trip-hiking-raster')).toBe('visible');
expect(layers.get('trip-topo-raster')).toBe('none');
expect(map.addSource).toHaveBeenCalledTimes(2);
});
it("keeps the user's own map when the style refuses the layer", () => {
const { map } = fakeMap();
map.addLayer.mockImplementation(() => {
throw new Error('style not loaded');
});
expect(() => applyBaseLayer(map, 'hiking')).not.toThrow();
});
});
describe('rasterTileZoom', () => {
it('puts a GL zoom on the 256 px tile scale one step further in, where a raster minimum is read', () => {
expect(rasterTileZoom(8)).toBe(9);
expect(rasterTileZoom(7.5)).toBe(8.5);
});
});