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from __future__ import annotations
import os
import re
from typing import TYPE_CHECKING
import pytest
import vtk
import pyvista as pv
from pyvista.core.errors import PyVistaDeprecationWarning
from pyvista.plotting.utilities import algorithms
from pyvista.plotting.utilities import xvfb
if TYPE_CHECKING:
from pytest_mock import MockerFixture
@pytest.mark.skip_windows
@pytest.mark.skip_mac
def test_start_xvfb():
def _test_start_xvfb():
pv.start_xvfb()
if pv._version.version_info[:2] > (0, 48):
msg = 'Remove this method'
raise RuntimeError(msg)
with pytest.warns(
PyVistaDeprecationWarning,
match='This function is deprecated and will be removed in future version',
):
_test_start_xvfb()
def test_start_xvfb_raises(monkeypatch: pytest.MonkeyPatch, mocker: MockerFixture):
monkeypatch.setattr(os, 'name', 'foo')
with (
pytest.raises(OSError, match='`start_xvfb` is only supported on Linux'),
pytest.warns(
PyVistaDeprecationWarning,
match='This function is deprecated and will be removed in future version',
),
):
pv.start_xvfb()
monkeypatch.setattr(os, 'name', 'posix')
m = mocker.patch.object(os, 'system')
m.return_value = True
with (
pytest.raises(OSError, match=re.escape(xvfb.XVFB_INSTALL_NOTES)),
pytest.warns(
PyVistaDeprecationWarning,
match='This function is deprecated and will be removed in future version',
),
):
pv.start_xvfb()
def test_algo_to_mesh_handler_raises(mocker: MockerFixture):
m = mocker.patch.object(algorithms, 'wrap')
m.return_value = None
with pytest.raises(
pv.PyVistaPipelineError, match='The passed algorithm is failing to produce an output.'
):
algorithms.algorithm_to_mesh_handler(vtk.vtkAlgorithm())
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