#     Copyright 2025, Kay Hayen, mailto:kay.hayen@gmail.com find license text at end of file


import itertools

not_all = [1, 1, 1, 1, 1, 1, 1, 1, 0, 1]


def calledRepeatedly():
    # We measure making a generator iterator step or not.
    gen = (x for x in not_all)

    # make sure it is started.
    x = next(gen)

    # This should abort.
    # construct_begin
    all(gen)
    # construct_end

    # make sure it is still running.
    y = next(gen)

    return x, y


for x in itertools.repeat(None, 50000):
    calledRepeatedly()

print("OK.")

#     Python test originally created or extracted from other peoples work. The
#     parts from me are licensed as below. It is at least Free Software where
#     it's copied from other people. In these cases, that will normally be
#     indicated.
#
#     Licensed 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.