    @Test
    public void testSetMBTileLayers() {

        ReflectionHelpers.setField(mbTilesHelper, "mbtilesDir", new File("src/test/resources/"));
        mbTilesHelper.setMBTileLayers(context, switcherPlugin);
        verify(switcherPlugin, times(2)).addBaseLayer(any(MBTilesLayer.class), eq(false));
    }