tests/utils/test_threading.py

# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


import pytest

from aria.utils import threading


def test_exception_raised_from_thread():

    def error_raising_func():
        raise ValueError('This is an error')

    thread = threading.ExceptionThread(target=error_raising_func)
    thread.start()
    thread.join()

    assert thread.is_error()
    with pytest.raises(ValueError):
        thread.raise_error_if_exists()