@Test
public void testInitializeMbTilesLayersWithRasterTiles() {

    List<File> offlineFiles = Collections.singletonList(new File("src/test/resources/raster.mbtiles"));
    mbTilesHelper.initializeMbTileslayers(style, offlineFiles);
    assertNotNull(mbTilesHelper.tileServer);
    verify(style).addLayer(any(RasterLayer.class));
    verify(style).addSource(any(Source.class));
}