mirror of
https://github.com/langchain-ai/delta-rs.git
synced 2026-07-16 10:14:27 -04:00
Ion Koutsouris
e57929e0f8
Signed-off-by: Ion Koutsouris <15728914+ion-elgreco@users.noreply.github.com>
22 lines
641 B
Python
22 lines
641 B
Python
import pytest
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from arro3.core import Array, DataType, Table
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from deltalake import write_deltalake
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from deltalake.exceptions import DeltaError
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def test_unsafe_cast(tmp_path):
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tbl = Table.from_pydict({"foo": Array([1, 2, 3, 200], DataType.uint8())})
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with pytest.raises(
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DeltaError,
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match="Cast error: Failed to convert into Arrow schema: Cast error: Failed to cast foo from Int8 to UInt8: Can't cast value 200 to type Int8",
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):
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write_deltalake(tmp_path, tbl)
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def test_safe_cast(tmp_path):
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tbl = Table.from_pydict({"foo": Array([1, 2, 3, 4], DataType.uint8())})
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write_deltalake(tmp_path, tbl)
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