IPython/external/tests/test_qt_loaders.py

import importlib
import pytest
from IPython.external.qt_loaders import ID


def test_import_denier():
    ID.forbid("ipython_denied_module")
    with pytest.raises(ImportError, match="disabled by IPython"):
        import ipython_denied_module
    with pytest.raises(ImportError, match="disabled by IPython"):
        importlib.import_module("ipython_denied_module")