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import pytest
import pandas as pd
import pandas._testing as tm
@pytest.mark.parametrize(
"to_concat_dtypes, result_dtype",
[
(["Float64", "Float64"], "Float64"),
(["Float32", "Float64"], "Float64"),
(["Float32", "Float32"], "Float32"),
],
)
def test_concat_series(to_concat_dtypes, result_dtype):
result = pd.concat([pd.Series([1, 2, pd.NA], dtype=t) for t in to_concat_dtypes])
expected = pd.concat([pd.Series([1, 2, pd.NA], dtype=object)] * 2).astype(
result_dtype
)
tm.assert_series_equal(result, expected)