[BUG] stop shipping tests and test data in packages?

[jameslamb]

Describe the bug

Conda packages and wheels are shipping tests and test data.

Unless that's an intentional choice, those should be removed. Smaller packages are cheaper to transmit and store and faster to install.

Steps/Code to reproduce bug

mkdir -p ./delete-me
pushd ./delete-me

# conda packages
wget \
    https://api.anaconda.org/download/rapidsai-nightly/libcucim/26.04.00a18/linux-64/libcucim-26.04.00a18-cuda13_260306_ghg18b16e3_gn50_phf3d4060.conda

wget \
    https://api.anaconda.org/download/rapidsai-nightly/cucim/26.04.00a18/linux-64/cucim-26.04.00a18-cuda13_py313_260306_ghg18b16e3_gn50_phc494990.conda

# wheels
pip download \
    --no-deps \
    --extra-index-url https://pypi.anaconda.org/rapidsai-wheels-nightly/simple/ \
    'cucim-cu13>=26.04.00a18'

pip install 'pydistcheck>=0.11.3'
pydistcheck --inspect *

For example:

$ unzip -l *.whl
     5709  2026-03-03 21:14   cucim/skimage/color/tests/ciede2000_test_data.txt
     3025  2026-03-03 21:14   cucim/skimage/color/tests/test_adapt_rgb.py
    39809  2026-03-03 21:14   cucim/skimage/color/tests/test_colorconv.py
    11692  2026-03-03 21:14   cucim/skimage/color/tests/test_colorlabel.py
     7867  2026-03-03 21:14   cucim/skimage/color/tests/test_delta_e.py
        0  2026-03-03 21:14   cucim/skimage/color/tests/data/
      248  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_a_10.npy
      200  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_a_2.npy
      248  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_a_r.npy
      248  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_b_10.npy
      248  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_b_2.npy
      248  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_b_r.npy
      248  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_c_10.npy
      248  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_c_2.npy
      248  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_c_r.npy
      200  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_d50_10.npy
      200  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_d50_2.npy
      248  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_d50_r.npy
      200  2026-03-03 21:14   cucim/skimage/color/tests/data/lab_array_d55_10.npy

Expected behavior

Tests and test data should be excluded from these packages (unless there is a compelling reason to include them).

Environment details (please complete the following information):

N/A

Additional context

Approaches for excluding the test data here might include

• modifying MANIFEST.in
• modifying CMake install() rules
• changes to build scripts
• moving tests/ directories out of the cucim/ directory

Thanks for your time and consideration.