# -*- coding: utf-8 -*-

from system_tests import CaseMeta, path, check_no_ASAN_UBSAN_errors

class OutOfMemoryInLoaderTiffGetData(metaclass=CaseMeta):

    """

    Regression test for the bug described in:

    https://github.com/Exiv2/exiv2/issues/839

    Due to a missing bounds check, this test triggers a 4GB memory

    allocation. So the test will fail with a std::bad_alloc exception

    if less than 4GB is available.  On Linux, you can use `ulimit -v

    4000000` to reduce the available memory to slightly less than 4GB.

    """

    url = "https://github.com/Exiv2/exiv2/issues/839"

    filename = path("$data_path/issue_839_poc.rw2")

    commands = ["$exiv2 $filename"]

    stdout = [""]

    stderr = [

        """$exiv2_exception_message $filename:

$kerCorruptedMetadata

"""]

    compare_stderr = check_no_ASAN_UBSAN_errors

    retval = [1]