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20 lines
571 B
20 lines
571 B
1 year ago
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from io import StringIO
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import numpy as np
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import pytest
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import pandas as pd
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import pandas._testing as tm
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class BaseParsingTests:
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@pytest.mark.parametrize("engine", ["c", "python"])
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def test_EA_types(self, engine, data):
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df = pd.DataFrame({"with_dtype": pd.Series(data, dtype=str(data.dtype))})
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csv_output = df.to_csv(index=False, na_rep=np.nan)
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result = pd.read_csv(
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StringIO(csv_output), dtype={"with_dtype": str(data.dtype)}, engine=engine
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)
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expected = df
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tm.assert_frame_equal(result, expected)
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