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

from system_tests import CaseMeta, path, check_no_ASAN_UBSAN_errors

class TestCvePoC(metaclass=CaseMeta):

    """

    Regression test for the bug described in:

    https://github.com/Exiv2/exiv2/issues/283

    """

    url = "https://github.com/Exiv2/exiv2/issues/283"

    cve_url = "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-11531"

    def check_no_ASAN_UBSAN_errors(self, i, command, got_stderr, expected_stderr):

        """ Override of system_tests.check_no_ASAN_UBSAN_errors for this particular test case.

        Here we want to also check that the two last lines of got_stderr have the expected_stderr

        """

        check_no_ASAN_UBSAN_errors(self, i, command, got_stderr, expected_stderr)

        self.assertListEqual(expected_stderr.splitlines(), got_stderr.splitlines()[-2:])

    filename = path("$data_path/pocIssue283.jpg")

    commands = ["$exiv2 $filename"]

    stdout = [""]

    stderr = [

        """$exiv2_exception_message $filename:

$kerCorruptedMetadata

"""]

    compare_stderr = check_no_ASAN_UBSAN_errors

    retval = [1]