Python API changed to do I/O in larger blocks

python/test/test_convert.py

@@ -0,0 +1,39 @@
+import unittest
+from io import BytesIO
+import os
+from pmtiles.writer import Writer
+from pmtiles.reader import Reader, MemorySource
+from pmtiles.convert import pmtiles_to_mbtiles, mbtiles_to_pmtiles
+
+
+class TestConvert(unittest.TestCase):
+    def tearDown(self):
+        try:
+            os.remove("test_tmp.pmtiles")
+        except:
+            pass
+        try:
+            os.remove("test_tmp.mbtiles")
+        except:
+            pass
+        try:
+            os.remove("test_tmp_2.mbtiles")
+        except:
+            pass
+
+    def test_roundtrip(self):
+
+        with open("test_tmp.pmtiles", "wb") as f:
+            writer = Writer(f, 7)
+            writer.write_tile(1, 0, 0, b"0")
+            writer.write_tile(1, 0, 1, b"1")
+            writer.write_tile(1, 1, 0, b"2")
+            writer.write_tile(1, 1, 1, b"3")
+            writer.write_tile(2, 0, 0, b"4")
+            writer.write_tile(3, 0, 0, b"5")
+            writer.write_tile(2, 0, 1, b"6")
+            writer.write_tile(3, 0, 2, b"7")
+            writer.finalize({"key": "value"})
+
+        pmtiles_to_mbtiles("test_tmp.pmtiles", "test_tmp.mbtiles", False)
+        mbtiles_to_pmtiles("test_tmp.mbtiles", "test_tmp_2.pmtiles", 3, False)