Closes #5240: alignment tests for arkouda.numpy.manipulation_functions

[ajpotts]

PR: Add NumPy alignment tests for manipulation functions (flip/repeat/squeeze/tile)

Summary

This PR adds a new pytest module that verifies Arkouda’s arkouda.numpy.manipulation_functions APIs match NumPy behavior for common and edge-case inputs. Specifically, it covers:

• flip (axis=None, single axis, multi-axis)
• repeat (axis=None, axis=int, per-axis repeats, error cases)
• squeeze (valid squeeze axes and invalid-axis error alignment)
• tile (various reps shapes and acceptance of list-like reps consistent with NumPy)

The new test file is included in the test collection via pytest.ini.

Changes

• Add tests/numpy/alignment_verification/manipulation_functions_alignment.py
  • Parametrized coverage across a range of ranks/shapes
  • Uses to_ndarray() + np.array_equal / shape checks for robust comparisons
  • Validates expected exceptions (e.g., out-of-range axis for repeat, invalid squeeze axis)
  • Includes test_tile_accepts_list_reps_like_numpy to ensure tile(..., [2, 2]) matches np.tile
• Update pytest.ini
  • Add the new alignment verification test file to testpaths

Motivation

We already maintain alignment verification tests for operator behavior; this extends that approach to array manipulation functions. These tests help prevent regressions when backend implementations or API contracts evolve, and make intended NumPy parity explicit.

Notes / Considerations

• Tests are marked with @pytest.mark.skip_if_rank_not_compiled([2, 3]) where appropriate, to respect builds that may not support certain ranks.
• tile accepts list-like reps in NumPy; the suite asserts that Arkouda matches that behavior.

How to test

pytest -q tests/numpy/alignment_verification/manipulation_functions_alignment.py
# or run the full numpy suite:
pytest -q tests/numpy

Closes #5240: alignment tests for arkouda.numpy.manipulation_functions