diff options
Diffstat (limited to 'tests/test_natsorted.py')
| -rw-r--r-- | tests/test_natsorted.py | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/tests/test_natsorted.py b/tests/test_natsorted.py index eccb9d2..3d6375c 100644 --- a/tests/test_natsorted.py +++ b/tests/test_natsorted.py @@ -4,6 +4,7 @@ Here are a collection of examples of how this module can be used. See the README or the natsort homepage for more details. """ +import math from operator import itemgetter from pathlib import PurePosixPath from typing import List, Tuple, Union @@ -110,19 +111,29 @@ def test_natsorted_handles_mixed_types( @pytest.mark.parametrize( - "alg, expected, slc", + "alg, expected", [ - (ns.DEFAULT, [float("nan"), 5, "25", 1e40], slice(1, None)), - (ns.NANLAST, [5, "25", 1e40, float("nan")], slice(None, 3)), + (ns.DEFAULT, [None, float("nan"), float("-inf"), 5, "25", 1e40, float("inf")]), + (ns.NANLAST, [float("-inf"), 5, "25", 1e40, None, float("nan"), float("inf")]), ], ) -def test_natsorted_handles_nan( - alg: NSType, expected: List[Union[str, float, int]], slc: slice +def test_natsorted_consistent_ordering_with_nan_and_friends( + alg: NSType, expected: List[Union[str, float, None, int]] ) -> None: - given: List[Union[str, float, int]] = ["25", 5, float("nan"), 1e40] - # The slice is because NaN != NaN - # noinspection PyUnresolvedReferences - assert natsorted(given, alg=alg)[slc] == expected[slc] + sentinel = math.pi + expected = [sentinel if x != x else x for x in expected] + given: List[Union[str, float, None, int]] = [ + float("inf"), + float("-inf"), + "25", + 5, + float("nan"), + 1e40, + None, + ] + result = natsorted(given, alg=alg) + result = [sentinel if x != x else x for x in result] + assert result == expected def test_natsorted_with_mixed_bytes_and_str_input_raises_type_error() -> None: |