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62 lines
2.1 KiB
Python
62 lines
2.1 KiB
Python
import pyarrow as pa
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import pytest
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from datasets.builder import InvalidConfigName
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from datasets.data_files import DataFilesList
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from datasets.packaged_modules.arrow.arrow import Arrow, ArrowConfig
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@pytest.fixture
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def arrow_file_streaming_format(tmp_path):
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filename = tmp_path / "stream.arrow"
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testdata = [[1, 1, 1], [0, 100, 6], [1, 90, 900]]
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schema = pa.schema([pa.field("input_ids", pa.list_(pa.int32()))])
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array = pa.array(testdata, type=pa.list_(pa.int32()))
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table = pa.Table.from_arrays([array], schema=schema)
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with open(filename, "wb") as f:
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with pa.ipc.new_stream(f, schema) as writer:
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writer.write_table(table)
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return str(filename)
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@pytest.fixture
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def arrow_file_file_format(tmp_path):
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filename = tmp_path / "file.arrow"
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testdata = [[1, 1, 1], [0, 100, 6], [1, 90, 900]]
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schema = pa.schema([pa.field("input_ids", pa.list_(pa.int32()))])
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array = pa.array(testdata, type=pa.list_(pa.int32()))
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table = pa.Table.from_arrays([array], schema=schema)
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with open(filename, "wb") as f:
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with pa.ipc.new_file(f, schema) as writer:
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writer.write_table(table)
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return str(filename)
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@pytest.mark.parametrize(
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"file_fixture, config_kwargs",
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[
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("arrow_file_streaming_format", {}),
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("arrow_file_file_format", {}),
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],
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)
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def test_arrow_generate_tables(file_fixture, config_kwargs, request):
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arrow = Arrow(**config_kwargs)
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generator = arrow._generate_tables([request.getfixturevalue(file_fixture)])
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pa_table = pa.concat_tables([table for _, table in generator])
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expected = {"input_ids": [[1, 1, 1], [0, 100, 6], [1, 90, 900]]}
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assert pa_table.to_pydict() == expected
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def test_config_raises_when_invalid_name() -> None:
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with pytest.raises(InvalidConfigName, match="Bad characters"):
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_ = ArrowConfig(name="name-with-*-invalid-character")
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@pytest.mark.parametrize("data_files", ["str_path", ["str_path"], DataFilesList(["str_path"], [()])])
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def test_config_raises_when_invalid_data_files(data_files) -> None:
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with pytest.raises(ValueError, match="Expected a DataFilesDict"):
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_ = ArrowConfig(name="name", data_files=data_files)
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