Method test_roundtrip

python/pmtiles/test/test_convert.py:42–103

(self)

            pass

    def test_roundtrip(self):
        with open("test_tmp.pmtiles", "wb") as f:
            writer = Writer(f)
            writer.write_tile(0, b"0")
            writer.write_tile(1, b"1")
            writer.write_tile(2, b"2")
            writer.write_tile(3, b"3")
            writer.write_tile(4, b"4")
            writer.write_tile(5, b"5")
            writer.write_tile(6, b"6")
            writer.write_tile(7, b"7")

            header = {
                "tile_type": TileType.MVT,
                "tile_compression": Compression.GZIP,
                "min_zoom": 0,
                "max_zoom": 2,
                "min_lon_e7": 0,
                "max_lon_e7": 0,
                "min_lat_e7": 0,
                "max_lat_e7": 0,
                "center_zoom": 0,
                "center_lon_e7": 0,
                "center_lat_e7": 0,
                }
            
            metadata = {
                "vector_layers": ['vector','layers'],
                "tilestats":{'tile':'stats'},
                }
            metadata["minzoom"] = header["min_zoom"]
            metadata["maxzoom"] = header["max_zoom"]
            min_lon = header["min_lon_e7"] / 10000000
            min_lat = header["min_lat_e7"] / 10000000
            max_lon = header["max_lon_e7"] / 10000000
            max_lat = header["max_lat_e7"] / 10000000
            metadata["bounds"] = f"{min_lon},{min_lat},{max_lon},{max_lat}"
            center_lon = header["center_lon_e7"] / 10000000
            center_lat = header["center_lat_e7"] / 10000000
            center_zoom = header["center_zoom"]
            metadata["center"] = f"{center_lon},{center_lat},{center_zoom}"
            metadata["format"] = "pbf"

            writer.finalize(
                header,
                metadata,
            )

        pmtiles_to_mbtiles("test_tmp.pmtiles", "test_tmp.mbtiles")
        conn = sqlite3.connect('test_tmp.mbtiles')
        cursor = conn.cursor()
        res = cursor.execute("SELECT value from metadata where name = 'json'")
        data = res.fetchone()[0]
        json_metadata = json.loads(data)
        self.assertEqual(json_metadata['vector_layers'], ['vector', 'layers'])
        self.assertEqual(json_metadata['tilestats'], {'tile':'stats'})

        mbtiles_to_pmtiles("test_tmp.mbtiles", "test_tmp_2.pmtiles", 3)