def test_coreg_gui_automation():
"""Test that properties get properly updated."""
from mne.gui._file_traits import DigSource
from mne.gui._fiducials_gui import MRIHeadWithFiducialsModel
from mne.gui._coreg_gui import CoregModel
subject = 'sample'
hsp = DigSource()
hsp.file = raw_path
mri = MRIHeadWithFiducialsModel(subjects_dir=subjects_dir, subject=subject)
model = CoregModel(mri=mri, hsp=hsp)
# gh-7254
assert not (model.nearest_transformed_high_res_mri_idx_hsp == 0).all()
model.fit_fiducials()
model.icp_iterations = 2
model.nasion_weight = 2.
model.fit_icp()
model.omit_hsp_points(distance=5e-3)
model.icp_iterations = 2
model.fit_icp()
errs_icp = np.median(model._get_point_distance())
assert 2e-3 < errs_icp < 3e-3
info = mne.io.read_info(raw_path)
errs_nearest = np.median(
dig_mri_distances(info, fname_trans, subject, subjects_dir))
assert 1e-3 < errs_nearest < 2e-3
