@classmethod
def setUpClass(cls):
    path = './tests/data/raster/raster_for_test.tif'
    cls.read_only_vgr = GeoRaster2.open(path)
    path = './tests/data/raster/raster_wgs84.tif'
    cls.read_only_vgr_wgs84 = GeoRaster2.open(path)
@classmethod
def setUpClass(cls):
    path = './tests/data/raster/raster_for_test.tif'
    cls.read_only_vgr = GeoRaster2.open(path)
    path = './tests/data/raster/raster_wgs84.tif'
    cls.read_only_vgr_wgs84 = GeoRaster2.open(path)