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tono/tests/node_tests/mfm_analysis.py
2026-04-03 22:09:19 -07:00

48 lines
1.3 KiB
Python

import numpy as np
import pytest
from tests.node_tests._shared import make_field
def test_mfm_all_operations():
from backend.nodes.mfm_analysis import MFMAnalysis
node = MFMAnalysis()
field = make_field(shape=(32, 32))
for op in ("phase_to_force_gradient", "force_gradient_to_field",
"charge_density", "magnetisation"):
result, = node.process(field, op, 50e-9)
assert result.data.shape == (32, 32)
assert np.isfinite(result.data).all()
def test_mfm_flat_field():
from backend.nodes.mfm_analysis import MFMAnalysis
node = MFMAnalysis()
field = make_field(data=np.zeros((32, 32)))
result, = node.process(field, "phase_to_force_gradient", 50e-9)
assert np.allclose(result.data, 0.0, atol=1e-10)
def test_mfm_units():
from backend.nodes.mfm_analysis import MFMAnalysis
node = MFMAnalysis()
field = make_field(shape=(32, 32))
result, = node.process(field, "force_gradient_to_field", 50e-9)
assert result.si_unit_z == "A/m"
result, = node.process(field, "charge_density", 50e-9)
assert result.si_unit_z == "A/m²"
def test_mfm_unknown_operation():
from backend.nodes.mfm_analysis import MFMAnalysis
node = MFMAnalysis()
field = make_field(shape=(32, 32))
with pytest.raises(ValueError):
node.process(field, "unknown_op", 50e-9)