Function test_importplugin_error_message

testing/test_pluginmanager.py:238–260

Don't hide import errors when importing plugins and provide an easy to debug message. See #375 and #1998.

(
    pytester: Pytester, pytestpm: PytestPluginManager
)

def test_importplugin_error_message(
    pytester: Pytester, pytestpm: PytestPluginManager
) -> None:
    """Don't hide import errors when importing plugins and provide
    an easy to debug message.

    See #375 and #1998.
    """
    pytester.syspathinsert(pytester.path)
    pytester.makepyfile(
        qwe="""\
        def test_traceback():
            raise ImportError('Not possible to import: ☺')
        test_traceback()
        """
    )
    with pytest.raises(ImportError) as excinfo:
        pytestpm.import_plugin("qwe")

    assert str(excinfo.value).endswith(
        'Error importing plugin "qwe": Not possible to import: ☺'
    )
    assert "in test_traceback" in str(excinfo.traceback[-1])


class TestPytestPluginManager: