Add test case for the request coalescing
Add test case for the request coalescing

mapbox/node-mapbox-gl-native,mapbox/node-mapbox-gl-native,tmpsantos/node-mapbox-gl-native,tmpsantos/node-mapbox-gl-native,mapbox/node-mapbox-gl-native,tmpsantos/node-mapbox-gl-native,mapbox/node-mapbox-gl-native,tmpsantos/node-mapbox-gl-native