pitrou commented on code in PR #39623:
URL: https://github.com/apache/arrow/pull/39623#discussion_r1521648354
##########
python/pyarrow/tests/test_dataset_encryption.py:
##########
@@ -151,3 +155,61 @@ def test_write_dataset_parquet_without_encryption():
with pytest.raises(NotImplementedError):
_ = pformat.make_write_options(encryption_config="some value")
+
+
[email protected](
+ encryption_unavailable, reason="Parquet Encryption is not currently
enabled"
+)
+def test_large_row_encryption_decryption():
+ """Test encryption and decryption of a large number of rows."""
+
+ class NoOpKmsClient(pe.KmsClient):
+ def __init__(self):
+ super().__init__()
+
+ def wrap_key(self, key_bytes: bytes, _: str) -> bytes:
+ b = base64.b64encode(key_bytes)
+ return b
+
+ def unwrap_key(self, wrapped_key: bytes, _: str) -> bytes:
+ b = base64.b64decode(wrapped_key)
+ return b
+
+ row_count = pow(2, 15) + 1
Review Comment:
Nit: more idiomatic spelling
```suggestion
row_count = 2**15 + 1
```
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