Inzynierka/Lib/site-packages/pandas/tests/util/test_util.py
2023-06-02 12:51:02 +02:00

64 lines
1.5 KiB
Python

import os
import pytest
from pandas import compat
import pandas._testing as tm
def test_rands():
r = tm.rands(10)
assert len(r) == 10
def test_rands_array_1d():
arr = tm.rands_array(5, size=10)
assert arr.shape == (10,)
assert len(arr[0]) == 5
def test_rands_array_2d():
arr = tm.rands_array(7, size=(10, 10))
assert arr.shape == (10, 10)
assert len(arr[1, 1]) == 7
def test_numpy_err_state_is_default():
expected = {"over": "warn", "divide": "warn", "invalid": "warn", "under": "ignore"}
import numpy as np
# The error state should be unchanged after that import.
assert np.geterr() == expected
def test_convert_rows_list_to_csv_str():
rows_list = ["aaa", "bbb", "ccc"]
ret = tm.convert_rows_list_to_csv_str(rows_list)
if compat.is_platform_windows():
expected = "aaa\r\nbbb\r\nccc\r\n"
else:
expected = "aaa\nbbb\nccc\n"
assert ret == expected
@pytest.mark.parametrize("strict_data_files", [True, False])
def test_datapath_missing(datapath):
with pytest.raises(ValueError, match="Could not find file"):
datapath("not_a_file")
def test_datapath(datapath):
args = ("io", "data", "csv", "iris.csv")
result = datapath(*args)
expected = os.path.join(os.path.dirname(os.path.dirname(__file__)), *args)
assert result == expected
def test_external_error_raised():
with tm.external_error_raised(TypeError):
raise TypeError("Should not check this error message, so it will pass")