Hydrilla

    with pytest.raises(local_apt.AptError,

                       match='^couldnt_execute_apt-get_is_it_installed$'):

    error_regex = """^\

command_apt-get -c \\S+ update_failed

STDOUT_OUTPUT_heading

some output

STDERR_OUTPUT_heading

some error output\

$\

"""

    with pytest.raises(local_apt.AptError, match=error_regex):

        with local_apt.local_apt(sources_list, local_apt.default_keys) as apt:

            pass

    error_regex = f"""^\

command_apt-get -c \\S+ install --yes --just-print libjs-mathjax_failed

STDOUT_OUTPUT_heading

{re.escape(sample_install_stdout)}

STDERR_OUTPUT_heading

some error output\

$\

"""

    with pytest.raises(local_apt.AptError, match=error_regex):

    error_regex = """^\

command_apt-get -c \\S+ download libjs-mathjax_failed

STDOUT_OUTPUT_heading

some output

STDERR_OUTPUT_heading

some error output\

$\

"""

    with pytest.raises(local_apt.AptError, match=error_regex):

    assert [*destination.iterdir()] == []

@pytest.fixture

def mock_bad_deb_file(monkeypatch, mock_subprocess_run):

    """

    Make mocked 'apt-get download' command produce an incorrectly-named file.

    """

    old_run = local_apt.subprocess.run

    def twice_mocked_run(command, **kwargs):

        """

        Create an evil file if needed; then act just like the run() function

        that got replaced by this one.

        """

        if 'download' in command:

            destination = Path(kwargs.get('cwd') or Path.cwd())

            (destination / 'arbitrary-name').write_text('anything')

        return old_run(command, **kwargs)

    monkeypatch.setattr(local_apt.subprocess, 'run', twice_mocked_run)

@pytest.mark.subprocess_run(local_apt, make_run_apt_get())

@pytest.mark.usefixtures('mock_subprocess_run', 'mock_gnupg_import',

                         'mock_bad_deb_file')

def test_local_apt_download_bad_filename(mock_cache_dir):

    """

    Verify that the download_apt_packages() function raises a proper error when

    'apt-get download' command produces an incorrectly-named file.

    """

    sources_list = local_apt.SourcesList([], 'nabia')

    destination = mock_cache_dir / 'destination'

    destination.mkdir()

    error_regex = """^\

apt_download_gave_bad_filename_arbitrary-name

STDOUT_OUTPUT_heading

some output

STDERR_OUTPUT_heading

some error output\

$\

"""

    with pytest.raises(local_apt.AptError, match=error_regex):

        local_apt.download_apt_packages(sources_list, local_apt.default_keys,

                                        ['libjs-mathjax'], destination)

    error_regex = """^\

command_apt-get -c \\S* source --download-only \\S+_failed

STDOUT_OUTPUT_heading

some output

STDERR_OUTPUT_heading

some error output\

$\

"""

    with pytest.raises(local_apt.AptError, match=error_regex):

        local_apt.download_apt_packages(sources_list, local_apt.default_keys,

                                        ['libjs-mathjax'], destination)

    with pytest.raises(local_apt.DistroError, match='^distro_nabiał_unknown$'):

        output_text = 'loading_.apt-root/a/../../../b_outside_piggybacked_dir'

        with pytest.raises(FileReferenceError,

                           match=f'^{re.escape(output_text)}$'):

    with pytest.raises(local_apt.AptError,

                       match='^couldnt_execute_dpkg-deb_is_it_installed$'):

    error_regex = """^\

command_dpkg-deb -x \\S+\\.deb \\S+_failed

STDOUT_OUTPUT_heading

some output

STDERR_OUTPUT_heading

some error output\

$\

"""

    with pytest.raises(local_apt.AptError, match=error_regex):