[MNT] add tests for ListMethods?

[raybellwaves]

Is your feature request related to a problem? Please describe.

I was working on #15846 and I noticed there is no equivalent pandas method for s.list.sort_values (https://github.com/rapidsai/cudf/blob/branch-24.06/python/cudf/cudf/core/column/lists.py#L622). In the pandas compat box I would like to make a note of how to do this in pandas similar to the note that exists for df.interleave_columns() (https://github.com/rapidsai/cudf/blob/branch-24.06/python/cudf/cudf/core/dataframe.py#L7593)

Describe the solution you'd like

When I added the pandas code for interleave_columns I grabbed it from a test file (https://github.com/rapidsai/cudf/blob/branch-24.06/python/cudf/cudf/tests/test_reshape.py#L316). I was hoping to do the same for list.sort_values but I couldn't find a test for it. Are there tests for the ListMethods? https://github.com/rapidsai/cudf/blob/branch-24.06/python/cudf/cudf/core/column/lists.py#L316 I apologize if I am looking in the wrong place. In pandas there is https://github.com/pandas-dev/pandas/blob/main/pandas/tests/series/accessors/test_list_accessor.py and I see https://github.com/rapidsai/cudf/blob/branch-24.06/python/cudf/cudf/tests/series/test_accessors.py is a place holder.

Describe alternatives you've considered

I see list.sort_values calls sort_lists and that is well tested e.g. https://github.com/rapidsai/cudf/blob/branch-24.06/cpp/tests/lists/sort_lists_tests.cpp. There might be a reason if the tests for ListMethods is missing such as duplication of tests.

Additional context

Apologies again if I am looking in the wrong place in the repo.

[mroeschke]

Yeah the Python test organization is generally pretty monolithic right now. There are a few placeholder files that aspirationally these monolithic tests will be split into.

For list accessor tests I see some in python/cudf/cudf/tests/test_list.py and python/cudf/cudf/tests/test_contains.py

[raybellwaves]

Thanks. I found what I was looking for https://github.com/rapidsai/cudf/blob/branch-24.08/python/cudf/cudf/tests/test_list.py#L289

Closing