File HeatMapLayerSpec.js

test/mapboxgl/overlay/HeatMapLayerSpec.js:None–None

import { HeatMapLayer } from '../../../src/mapboxgl/overlay/HeatMapLayer';
import mapboxgl from 'mapbox-gl';
import mbglmap, { revertCRS } from '../../tool/mock_mapboxgl_map';
import { truncate } from '@turf/turf';