Updated script that can be controled by Nodejs web app

lib/python3.13/site-packages/pandas/tests/io/parser/common/test_inf.py

@@ -0,0 +1,78 @@
+"""
+Tests that work on both the Python and C engines but do not have a
+specific classification into the other test modules.
+"""
+from io import StringIO
+
+import numpy as np
+import pytest
+
+from pandas import (
+    DataFrame,
+    option_context,
+)
+import pandas._testing as tm
+
+pytestmark = pytest.mark.filterwarnings(
+    "ignore:Passing a BlockManager to DataFrame:DeprecationWarning"
+)
+
+xfail_pyarrow = pytest.mark.usefixtures("pyarrow_xfail")
+
+
+@xfail_pyarrow  # AssertionError: DataFrame.index are different
+@pytest.mark.parametrize("na_filter", [True, False])
+def test_inf_parsing(all_parsers, na_filter):
+    parser = all_parsers
+    data = """\
+,A
+a,inf
+b,-inf
+c,+Inf
+d,-Inf
+e,INF
+f,-INF
+g,+INf
+h,-INf
+i,inF
+j,-inF"""
+    expected = DataFrame(
+        {"A": [float("inf"), float("-inf")] * 5},
+        index=["a", "b", "c", "d", "e", "f", "g", "h", "i", "j"],
+    )
+    result = parser.read_csv(StringIO(data), index_col=0, na_filter=na_filter)
+    tm.assert_frame_equal(result, expected)
+
+
+@xfail_pyarrow  # AssertionError: DataFrame.index are different
+@pytest.mark.parametrize("na_filter", [True, False])
+def test_infinity_parsing(all_parsers, na_filter):
+    parser = all_parsers
+    data = """\
+,A
+a,Infinity
+b,-Infinity
+c,+Infinity
+"""
+    expected = DataFrame(
+        {"A": [float("infinity"), float("-infinity"), float("+infinity")]},
+        index=["a", "b", "c"],
+    )
+    result = parser.read_csv(StringIO(data), index_col=0, na_filter=na_filter)
+    tm.assert_frame_equal(result, expected)
+
+
+def test_read_csv_with_use_inf_as_na(all_parsers):
+    # https://github.com/pandas-dev/pandas/issues/35493
+    parser = all_parsers
+    data = "1.0\nNaN\n3.0"
+    msg = "use_inf_as_na option is deprecated"
+    warn = FutureWarning
+    if parser.engine == "pyarrow":
+        warn = (FutureWarning, DeprecationWarning)
+
+    with tm.assert_produces_warning(warn, match=msg, check_stacklevel=False):
+        with option_context("use_inf_as_na", True):
+            result = parser.read_csv(StringIO(data), header=None)
+    expected = DataFrame([1.0, np.nan, 3.0])
+    tm.assert_frame_equal(result, expected)