Random fail in iterative_solvers test #41
Description
Log is here: https://github.com/Simple-Robotics/nanoeigenpy/actions/runs/20750714952/job/59579072980?pr=40
It's on windows, but it might appear on other platforms.
@ManifoldFR We should probably make the test run 1000 times in a row to trigger it more frequently.
26-01-06T14:11:05.4212390Z 13/29 Test #13: nanoeigenpy: iterative_solvers .......................***Failed 0.88 sec
2026-01-06T14:11:05.4212938Z ============================= test session starts =============================
2026-01-06T14:11:05.4213372Z platform win32 -- Python 3.10.19, pytest-9.0.2, pluggy-1.6.0
2026-01-06T14:11:05.4213751Z rootdir: D:\a\nanoeigenpy\nanoeigenpy
2026-01-06T14:11:05.4214054Z collected 10 items
2026-01-06T14:11:05.4214185Z
2026-01-06T14:11:05.4214388Z ..\..\tests\test_iterative_solvers.py ....F..... [100%]
2026-01-06T14:11:05.4214707Z
2026-01-06T14:11:05.4214819Z ================================== FAILURES ===================================
2026-01-06T14:11:05.4215258Z _____________ test_solver[DiagonalLeastSquaresConjugateGradient] ______________
2026-01-06T14:11:05.4216672Z
2026-01-06T14:11:05.4217765Z cls = <class 'nanoeigenpy.solvers.DiagonalLeastSquaresConjugateGradient'>
2026-01-06T14:11:05.4218422Z
2026-01-06T14:11:05.4218611Z @pytest.mark.parametrize("cls", _classes)
2026-01-06T14:11:05.4218999Z def test_solver(cls):
2026-01-06T14:11:05.4219256Z Q = rng.standard_normal((dim, dim))
2026-01-06T14:11:05.4219553Z A = 0.5 * (Q.T + Q)
2026-01-06T14:11:05.4219783Z solver = cls(A)
2026-01-06T14:11:05.4220024Z solver.setMaxIterations(MAX_ITER)
2026-01-06T14:11:05.4220288Z
2026-01-06T14:11:05.4220448Z x = rng.random(dim)
2026-01-06T14:11:05.4220656Z b = A.dot(x)
2026-01-06T14:11:05.4220837Z x_est = solver.solve(b)
2026-01-06T14:11:05.4221033Z
2026-01-06T14:11:05.4221275Z > assert solver.info() == nanoeigenpy.ComputationInfo.Success
2026-01-06T14:11:05.4221924Z E AssertionError: assert ComputationInfo.NoConvergence == ComputationInfo.Success
2026-01-06T14:11:05.4222502Z E + where ComputationInfo.NoConvergence = <nanobind.nb_bound_method object at 0x0000017979741300>()
2026-01-06T14:11:05.4223326Z E + where <nanobind.nb_bound_method object at 0x0000017979741300> = <nanoeigenpy.solvers.DiagonalLeastSquaresConjugateGradient object at 0x0000017979507570>.info
2026-01-06T14:11:05.4224042Z E + and ComputationInfo.Success = <enum 'ComputationInfo'>.Success
2026-01-06T14:11:05.4224434Z E + where <enum 'ComputationInfo'> = nanoeigenpy.ComputationInfo
2026-01-06T14:11:05.4224672Z
2026-01-06T14:11:05.4225074Z ..\..\tests\test_iterative_solvers.py:29: AssertionError
2026-01-06T14:11:05.4225387Z =========================== short test summary info ===========================
2026-01-06T14:11:05.4226174Z FAILED ..\..\tests\test_iterative_solvers.py::test_solver[DiagonalLeastSquaresConjugateGradient] - AssertionError: assert ComputationInfo.NoConvergence == ComputationInfo.Success
2026-01-06T14:11:05.4227034Z + where ComputationInfo.NoConvergence = <nanobind.nb_bound_method object at 0x0000017979741300>()
2026-01-06T14:11:05.4228027Z + where <nanobind.nb_bound_method object at 0x0000017979741300> = <nanoeigenpy.solvers.DiagonalLeastSquaresConjugateGradient object at 0x0000017979507570>.info
2026-01-06T14:11:05.4228736Z + and ComputationInfo.Success = <enum 'ComputationInfo'>.Success
2026-01-06T14:11:05.4229128Z + where <enum 'ComputationInfo'> = nanoeigenpy.ComputationInfo
2026-01-06T14:11:05.4229470Z ========================= 1 failed, 9 passed in 0.52s =========================