test_0765_internal_boundary_integral_mpi calls raw Mesh._deform_mesh() — rejected by the coordinate-mutation guard (fails np2/np4 on development)

[lmoresi]

Summary

tests/parallel/test_0765_internal_boundary_integral_mpi.py::test_deformed_spherical_shell_boundary_area_parallel calls the internal Mesh._deform_mesh() directly on a live mesh; the coordinate-mutation capability gate (public API is mesh.deform()) rejects it, so the test fails at np2/np4 on current development. Flagged independently during the gating of #323 and #329 (TODO(BUG) marker added in the test file by #329).

Suggested fix

Port the test to the public mesh.deform() API. If deform() cannot express what the test needs on a spherical shell, that is itself worth knowing — the test predates the deform gate.

Underworld development team with AI support from Claude Code