def test_get_tile_for_different_zoom_levels(self):
    for raster in [self.read_only_virtual_geo_raster(), self.read_only_virtual_geo_raster_wgs84()]:
        for zoom in tiles:
            r = raster.get_tile(*tiles[zoom])
            self.assertFalse((r.image.data == 0).all())
            self.assertFalse(r.image.mask.all())
            self.assertEqual(r.image.shape, (3, 256, 256))
def test_get_tile_for_different_zoom_levels(self):
    for raster in [self.read_only_virtual_geo_raster(), self.read_only_virtual_geo_raster_wgs84()]:
        for zoom in tiles:
            r = raster.get_tile(*tiles[zoom])
            self.assertFalse((r.image.data == 0).all())
            self.assertFalse(r.image.mask.all())
            self.assertEqual(r.image.shape, (3, 256, 256))