Inzynierka/Lib/site-packages/pandas/tests/io/sas/test_sas.py

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2023-06-02 12:51:02 +02:00
from io import StringIO
import pytest
from pandas import read_sas
import pandas._testing as tm
class TestSas:
def test_sas_buffer_format(self):
# see gh-14947
b = StringIO("")
msg = (
"If this is a buffer object rather than a string "
"name, you must specify a format string"
)
with pytest.raises(ValueError, match=msg):
read_sas(b)
def test_sas_read_no_format_or_extension(self):
# see gh-24548
msg = "unable to infer format of SAS file.+"
with tm.ensure_clean("test_file_no_extension") as path:
with pytest.raises(ValueError, match=msg):
read_sas(path)
def test_sas_archive(datapath):
fname_uncompressed = datapath("io", "sas", "data", "airline.sas7bdat")
df_uncompressed = read_sas(fname_uncompressed)
fname_compressed = datapath("io", "sas", "data", "airline.sas7bdat.gz")
df_compressed = read_sas(fname_compressed, format="sas7bdat")
tm.assert_frame_equal(df_uncompressed, df_compressed)