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Diffstat (limited to 'tests/test_local_apt.py')
| -rw-r--r-- | tests/test_local_apt.py | 754 |
1 files changed, 754 insertions, 0 deletions
diff --git a/tests/test_local_apt.py b/tests/test_local_apt.py new file mode 100644 index 0000000..9122408 --- /dev/null +++ b/tests/test_local_apt.py @@ -0,0 +1,754 @@ +# SPDX-License-Identifier: CC0-1.0 + +# Copyright (C) 2022 Wojtek Kosior <koszko@koszko.org> +# +# Available under the terms of Creative Commons Zero v1.0 Universal. + +import pytest +import tempfile +import re +import json +from pathlib import Path, PurePosixPath +from zipfile import ZipFile +from tempfile import TemporaryDirectory + +from hydrilla.builder import local_apt +from hydrilla.builder.common_errors import * + +here = Path(__file__).resolve().parent + +from .helpers import * + +@pytest.fixture +def mock_cache_dir(monkeypatch): + """Make local_apt.py cache files to a temporary directory.""" + with tempfile.TemporaryDirectory() as td: + td_path = Path(td) + monkeypatch.setattr(local_apt, 'default_apt_cache_dir', td_path) + yield td_path + +@pytest.fixture +def mock_gnupg_import(monkeypatch, mock_cache_dir): + """Mock gnupg library when imported dynamically.""" + + gnupg_mock_dir = mock_cache_dir / 'gnupg_mock' + gnupg_mock_dir.mkdir() + (gnupg_mock_dir / 'gnupg.py').write_text('GPG = None\n') + + monkeypatch.syspath_prepend(str(gnupg_mock_dir)) + + import gnupg + + keyring_path = mock_cache_dir / 'master_keyring.gpg' + + class MockedImportResult: + """gnupg.ImportResult replacement""" + def __init__(self): + """Initialize MockedImportResult object.""" + self.imported = 1 + + class MockedGPG: + """GPG replacement that does not really invoke GPG.""" + def __init__(self, keyring): + """Verify the keyring path and initialize MockedGPG.""" + assert keyring == str(keyring_path) + + self.known_keys = {*keyring_path.read_text().split('\n')} \ + if keyring_path.exists() else set() + + def recv_keys(self, keyserver, key): + """Mock key receiving - record requested key as received.""" + assert keyserver == local_apt.default_keyserver + assert key not in self.known_keys + + self.known_keys.add(key) + keyring_path.write_text('\n'.join(self.known_keys)) + + return MockedImportResult() + + def list_keys(self, keys=None): + """Mock key listing - return a list with dummy items.""" + if keys is None: + return ['dummy'] * len(self.known_keys) + else: + return ['dummy' for k in keys if k in self.known_keys] + + def export_keys(self, keys, **kwargs): + """ + Mock key export - check that the call has the expected arguments and + return a dummy bytes array. + """ + assert kwargs['armor'] == False + assert kwargs['minimal'] == True + assert {*keys} == self.known_keys + + return b'<dummy keys export>' + + monkeypatch.setattr(gnupg, 'GPG', MockedGPG) + +def process_run_args(command, kwargs, expected_command): + """ + Perform assertions common to all mocked subprocess.run() invocations and + extract variable parts of the command line (if any). + """ + assert kwargs['env'] == {'LANG': 'en_US'} + assert kwargs['capture_output'] == True + + return process_command(command, expected_command) + +def run_apt_get_update(command, returncode=0, **kwargs): + """ + Instead of running an 'apt-get update' command just touch some file in apt + root to indicate that the call was made. + """ + expected = ['apt-get', '-c', '<conf_path>', 'update'] + conf_path = Path(process_run_args(command, kwargs, expected)['conf_path']) + + (conf_path.parent / 'update_called').touch() + + return MockedCompletedProcess(command, returncode, + text_output=kwargs.get('text')) + +""" +Output of 'apt-get install --yes --just-print libjs-mathjax' on some APT-based +system. +""" +sample_install_stdout = '''\ +NOTE: This is only a simulation! + apt-get needs root privileges for real execution. + Keep also in mind that locking is deactivated, + so don't depend on the relevance to the real current situation! +Reading package lists... +Building dependency tree... +Reading state information... +The following additional packages will be installed: + fonts-mathjax +Suggested packages: + fonts-mathjax-extras fonts-stix libjs-mathjax-doc +The following NEW packages will be installed: + fonts-mathjax libjs-mathjax +0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded. +Inst fonts-mathjax (0:2.7.9+dfsg-1 Devuan:4.0/stable, Devuan:1.0.0/unstable [all]) +Inst libjs-mathjax (0:2.7.9+dfsg-1 Devuan:4.0/stable, Devuan:1.0.0/unstable [all]) +Conf fonts-mathjax (0:2.7.9+dfsg-1 Devuan:4.0/stable, Devuan:1.0.0/unstable [all]) +Conf libjs-mathjax (0:2.7.9+dfsg-1 Devuan:4.0/stable, Devuan:1.0.0/unstable [all]) +''' + +def run_apt_get_install(command, returncode=0, **kwargs): + """ + Instead of running an 'apt-get install' command just print a possible + output of one. + """ + expected = ['apt-get', '-c', '<conf_path>', 'install', + '--yes', '--just-print', 'libjs-mathjax'] + + conf_path = Path(process_run_args(command, kwargs, expected)['conf_path']) + + return MockedCompletedProcess(command, returncode, + stdout=sample_install_stdout, + text_output=kwargs.get('text')) + +def run_apt_get_download(command, returncode=0, **kwargs): + """ + Instead of running an 'apt-get download' command just write some dummy + .deb to the appropriate directory. + """ + expected = ['apt-get', '-c', '<conf_path>', 'download'] + if 'libjs-mathjax' in command: + expected.append('libjs-mathjax') + else: + expected.append('fonts-mathjax=0:2.7.9+dfsg-1') + expected.append('libjs-mathjax=0:2.7.9+dfsg-1') + + conf_path = Path(process_run_args(command, kwargs, expected)['conf_path']) + + destination = Path(kwargs.get('cwd') or Path.cwd()) + + package_name_regex = re.compile(r'^[^=]+-mathjax') + + for word in expected: + match = package_name_regex.match(word) + if match: + filename = f'{match.group(0)}_0%3a2.7.9+dfsg-1_all.deb' + deb_path = destination / filename + deb_path.write_text(f'dummy {deb_path.name}') + + return MockedCompletedProcess(command, returncode, + text_output=kwargs.get('text')) + +def run_apt_get_source(command, returncode=0, **kwargs): + """ + Instead of running an 'apt-get source' command just write some dummy + "tarballs" to the appropriate directory. + """ + expected = ['apt-get', '-c', '<conf_path>', 'source', + '--download-only', 'libjs-mathjax=0:2.7.9+dfsg-1'] + if 'fonts-mathjax=0:2.7.9+dfsg-1' in command: + if command[-1] == 'fonts-mathjax=0:2.7.9+dfsg-1': + expected.append('fonts-mathjax=0:2.7.9+dfsg-1') + else: + expected.insert(-1, 'fonts-mathjax=0:2.7.9+dfsg-1') + + destination = Path(kwargs.get('cwd') or Path.cwd()) + for filename in [ + 'mathjax_2.7.9+dfsg-1.debian.tar.xz', + 'mathjax_2.7.9+dfsg-1.dsc', + 'mathjax_2.7.9+dfsg.orig.tar.xz' + ]: + (destination / filename).write_text(f'dummy {filename}') + + return MockedCompletedProcess(command, returncode, + text_output=kwargs.get('text')) + +def make_run_apt_get(**returncodes): + """ + Produce a function that chooses and runs the appropriate one of + subprocess_run_apt_get_*() mock functions. + """ + def mock_run(command, **kwargs): + """ + Chooses and runs the appropriate one of subprocess_run_apt_get_*() mock + functions. + """ + for subcommand, run in [ + ('update', run_apt_get_update), + ('install', run_apt_get_install), + ('download', run_apt_get_download), + ('source', run_apt_get_source) + ]: + if subcommand in command: + returncode = returncodes.get(f'{subcommand}_code', 0) + return run(command, returncode, **kwargs) + + raise Exception('Unknown command: {}'.format(' '.join(command))) + + return mock_run + +@pytest.mark.subprocess_run(local_apt, make_run_apt_get()) +@pytest.mark.usefixtures('mock_subprocess_run', 'mock_gnupg_import') +def test_local_apt_contextmanager(mock_cache_dir): + """ + Verify that the local_apt() function creates a proper apt environment and + that it also properly restores it from cache. + """ + sources_list = local_apt.SourcesList(['deb-src sth', 'deb sth']) + + with local_apt.local_apt(sources_list, local_apt.default_keys) as apt: + apt_root = Path(apt.apt_conf).parent.parent + + assert (apt_root / 'etc' / 'trusted.gpg').read_bytes() == \ + b'<dummy keys export>' + + assert (apt_root / 'etc' / 'update_called').exists() + + assert (apt_root / 'etc' / 'apt.sources.list').read_text() == \ + 'deb-src sth\ndeb sth' + + conf_lines = (apt_root / 'etc' / 'apt.conf').read_text().split('\n') + + # check mocked keyring + assert {*local_apt.default_keys} == \ + {*(mock_cache_dir / 'master_keyring.gpg').read_text().split('\n')} + + assert not apt_root.exists() + + expected_conf = { + 'Architecture': 'amd64', + 'Dir': str(apt_root), + 'Dir::State': f'{apt_root}/var/lib/apt', + 'Dir::State::status': f'{apt_root}/var/lib/dpkg/status', + 'Dir::Etc::SourceList': f'{apt_root}/etc/apt.sources.list', + 'Dir::Etc::SourceParts': '', + 'Dir::Cache': f'{apt_root}/var/cache/apt', + 'pkgCacheGen::Essential': 'none', + 'Dir::Etc::Trusted': f'{apt_root}/etc/trusted.gpg', + } + + conf_regex = re.compile(r'^(?P<key>\S+)\s"(?P<val>\S*)";$') + assert dict([(m.group('key'), m.group('val')) + for l in conf_lines if l for m in [conf_regex.match(l)]]) == \ + expected_conf + + with ZipFile(mock_cache_dir / f'apt_{sources_list.identity()}.zip') as zf: + # reuse the same APT, its cached zip file should exist now + with local_apt.local_apt(sources_list, local_apt.default_keys) as apt: + apt_root = Path(apt.apt_conf).parent.parent + + expected_members = {*apt_root.rglob('*')} + expected_members.remove(apt_root / 'etc' / 'apt.conf') + expected_members.remove(apt_root / 'etc' / 'trusted.gpg') + + names = zf.namelist() + assert len(names) == len(expected_members) + + for name in names: + path = apt_root / name + assert path in expected_members + assert zf.read(name) == \ + (b'' if path.is_dir() else path.read_bytes()) + + assert not apt_root.exists() + +@pytest.mark.subprocess_run(local_apt, run_missing_executable) +@pytest.mark.usefixtures('mock_subprocess_run', 'mock_gnupg_import') +def test_local_apt_missing(mock_cache_dir): + """ + Verify that the local_apt() function raises a proper error when 'apt-get' + command is missing. + """ + sources_list = local_apt.SourcesList(['deb-src sth', 'deb sth']) + + with pytest.raises(local_apt.AptError, + match='^couldnt_execute_apt-get_is_it_installed$'): + with local_apt.local_apt(sources_list, local_apt.default_keys) as apt: + pass + +@pytest.mark.subprocess_run(local_apt, make_run_apt_get(update_code=1)) +@pytest.mark.usefixtures('mock_subprocess_run', 'mock_gnupg_import') +def test_local_apt_update_fail(mock_cache_dir): + """ + Verify that the local_apt() function raises a proper error when + 'apt-get update' command returns non-0. + """ + sources_list = local_apt.SourcesList(['deb-src sth', 'deb sth']) + + error_regex = """^\ +command_apt-get -c \\S+ update_failed + +STDOUT_OUTPUT_heading + +some output + +STDERR_OUTPUT_heading + +some error output\ +$\ +""" + + with pytest.raises(local_apt.AptError, match=error_regex): + with local_apt.local_apt(sources_list, local_apt.default_keys) as apt: + pass + +@pytest.mark.subprocess_run(local_apt, make_run_apt_get()) +@pytest.mark.usefixtures('mock_subprocess_run', 'mock_gnupg_import') +def test_local_apt_download(mock_cache_dir): + """ + Verify that download_apt_packages() function properly performs the download + of .debs and sources. + """ + sources_list = local_apt.SourcesList(['deb-src sth', 'deb sth']) + destination = mock_cache_dir / 'destination' + destination.mkdir() + + local_apt.download_apt_packages(sources_list, local_apt.default_keys, + ['libjs-mathjax'], destination, False) + + libjs_mathjax_path = destination / 'libjs-mathjax_0%3a2.7.9+dfsg-1_all.deb' + fonts_mathjax_path = destination / 'fonts-mathjax_0%3a2.7.9+dfsg-1_all.deb' + + source_paths = [ + destination / 'mathjax_2.7.9+dfsg-1.debian.tar.xz', + destination / 'mathjax_2.7.9+dfsg-1.dsc', + destination / 'mathjax_2.7.9+dfsg.orig.tar.xz' + ] + + assert {*destination.iterdir()} == {libjs_mathjax_path, *source_paths} + + local_apt.download_apt_packages(sources_list, local_apt.default_keys, + ['libjs-mathjax'], destination, + with_deps=True) + + assert {*destination.iterdir()} == \ + {libjs_mathjax_path, fonts_mathjax_path, *source_paths} + +@pytest.mark.subprocess_run(local_apt, make_run_apt_get(install_code=1)) +@pytest.mark.usefixtures('mock_subprocess_run', 'mock_gnupg_import') +def test_local_apt_install_fail(mock_cache_dir): + """ + Verify that the download_apt_packages() function raises a proper error when + 'apt-get install' command returns non-0. + """ + sources_list = local_apt.SourcesList(['deb-src sth', 'deb sth']) + destination = mock_cache_dir / 'destination' + destination.mkdir() + + error_regex = f"""^\ +command_apt-get -c \\S+ install --yes --just-print libjs-mathjax_failed + +STDOUT_OUTPUT_heading + +{re.escape(sample_install_stdout)} + +STDERR_OUTPUT_heading + +some error output\ +$\ +""" + + with pytest.raises(local_apt.AptError, match=error_regex): + local_apt.download_apt_packages(sources_list, local_apt.default_keys, + ['libjs-mathjax'], destination, + with_deps=True) + + assert [*destination.iterdir()] == [] + +@pytest.mark.subprocess_run(local_apt, make_run_apt_get(download_code=1)) +@pytest.mark.usefixtures('mock_subprocess_run', 'mock_gnupg_import') +def test_local_apt_download_fail(mock_cache_dir): + """ + Verify that the download_apt_packages() function raises a proper error when + 'apt-get download' command returns non-0. + """ + sources_list = local_apt.SourcesList(['deb-src sth', 'deb sth']) + destination = mock_cache_dir / 'destination' + destination.mkdir() + + error_regex = """^\ +command_apt-get -c \\S+ download libjs-mathjax_failed + +STDOUT_OUTPUT_heading + +some output + +STDERR_OUTPUT_heading + +some error output\ +$\ +""" + + with pytest.raises(local_apt.AptError, match=error_regex): + local_apt.download_apt_packages(sources_list, local_apt.default_keys, + ['libjs-mathjax'], destination, False) + + assert [*destination.iterdir()] == [] + +@pytest.fixture +def mock_bad_deb_file(monkeypatch, mock_subprocess_run): + """ + Make mocked 'apt-get download' command produce an incorrectly-named file. + """ + old_run = local_apt.subprocess.run + + def twice_mocked_run(command, **kwargs): + """ + Create an evil file if needed; then act just like the run() function + that got replaced by this one. + """ + if 'download' in command: + destination = Path(kwargs.get('cwd') or Path.cwd()) + (destination / 'arbitrary-name').write_text('anything') + + return old_run(command, **kwargs) + + monkeypatch.setattr(local_apt.subprocess, 'run', twice_mocked_run) + +@pytest.mark.subprocess_run(local_apt, make_run_apt_get()) +@pytest.mark.usefixtures('mock_subprocess_run', 'mock_gnupg_import', + 'mock_bad_deb_file') +def test_local_apt_download_bad_filename(mock_cache_dir): + """ + Verify that the download_apt_packages() function raises a proper error when + 'apt-get download' command produces an incorrectly-named file. + """ + sources_list = local_apt.SourcesList([], 'nabia') + destination = mock_cache_dir / 'destination' + destination.mkdir() + + error_regex = """^\ +apt_download_gave_bad_filename_arbitrary-name + +STDOUT_OUTPUT_heading + +some output + +STDERR_OUTPUT_heading + +some error output\ +$\ +""" + + with pytest.raises(local_apt.AptError, match=error_regex): + local_apt.download_apt_packages(sources_list, local_apt.default_keys, + ['libjs-mathjax'], destination, False) + + assert [*destination.iterdir()] == [] + +@pytest.mark.subprocess_run(local_apt, make_run_apt_get(source_code=1)) +@pytest.mark.usefixtures('mock_subprocess_run', 'mock_gnupg_import') +def test_local_apt_source_fail(mock_cache_dir): + """ + Verify that the download_apt_packages() function raises a proper error when + 'apt-get source' command returns non-0. + """ + sources_list = local_apt.SourcesList(['deb-src sth', 'deb sth']) + destination = mock_cache_dir / 'destination' + destination.mkdir() + + error_regex = """^\ +command_apt-get -c \\S* source --download-only \\S+_failed + +STDOUT_OUTPUT_heading + +some output + +STDERR_OUTPUT_heading + +some error output\ +$\ +""" + + with pytest.raises(local_apt.AptError, match=error_regex): + local_apt.download_apt_packages(sources_list, local_apt.default_keys, + ['libjs-mathjax'], destination, False) + + assert [*destination.iterdir()] == [] + +def test_sources_list(): + """Verify that the SourcesList class works properly.""" + list = local_apt.SourcesList([], 'nabia') + assert list.identity() == 'nabia' + + with pytest.raises(local_apt.DistroError, match='^distro_nabiał_unknown$'): + local_apt.SourcesList([], 'nabiał') + + list = local_apt.SourcesList(['deb sth', 'deb-src sth'], 'nabia') + assert list.identity() == \ + 'ef28d408b96046eae45c8ab3094ce69b2ac0c02a887e796b1d3d1a4f06fb49f1' + +def run_dpkg_deb(command, returncode=0, **kwargs): + """ + Insted of running an 'dpkg-deb -x' command just create some dummy file + in the destination directory. + """ + expected = ['dpkg-deb', '-x', '<deb_path>', '<dst_path>'] + + variables = process_run_args(command, kwargs, expected) + deb_path = Path(variables['deb_path']) + dst_path = Path(variables['dst_path']) + + package_name = re.match('^([^_]+)_.*', deb_path.name).group(1) + for path in [ + dst_path / 'etc' / f'dummy_{package_name}_config', + dst_path / 'usr/share/doc' / package_name / 'copyright' + ]: + path.parent.mkdir(parents=True, exist_ok=True) + path.write_text(f'dummy {path.name}') + + return MockedCompletedProcess(command, returncode, + text_output=kwargs.get('text')) + +def download_apt_packages(list, keys, packages, destination_dir, + with_deps=False): + """ + Replacement for download_apt_packages() function in local_apt.py, for + unit-testing the piggybacked_system() function. + """ + for path in [ + destination_dir / 'some-bin-package_1.1-2_all.deb', + destination_dir / 'another-package_1.1-2_all.deb', + destination_dir / 'some-source-package_1.1.orig.tar.gz', + destination_dir / 'some-source-package_1.1-1.dsc' + ]: + path.write_text(f'dummy {path.name}') + + with open(destination_dir / 'test_data.json', 'w') as out: + json.dump({ + 'list_identity': list.identity(), + 'keys': keys, + 'packages': packages, + 'with_deps': with_deps + }, out) + +@pytest.fixture +def mock_download_packages(monkeypatch): + """Mock the download_apt_packages() function in local_apt.py.""" + monkeypatch.setattr(local_apt, 'download_apt_packages', + download_apt_packages) + +@pytest.mark.subprocess_run(local_apt, run_dpkg_deb) +@pytest.mark.parametrize('params', [ + { + 'with_deps': False, + 'base_depends': True, + 'identity': 'nabia', + 'props': {'distribution': 'nabia', 'dependencies': False}, + 'all_keys': local_apt.default_keys, + 'prepared_directory': False + }, + { + 'with_deps': True, + 'base_depends': False, + 'identity': '38db0b4fa2f6610cd1398b66a2c05d9abb1285f9a055a96eb96dee0f6b72aca8', + 'props': { + 'sources_list': [f'deb{suf} http://example.com/ stable main' + for suf in ('', '-src')], + 'trusted_keys': ['AB' * 20], + 'dependencies': True, + 'depend_on_base_packages': False + }, + 'all_keys': [*local_apt.default_keys, 'AB' * 20], + 'prepared_directory': True + } +]) +@pytest.mark.usefixtures('mock_download_packages', 'mock_subprocess_run') +def test_piggybacked_system_download(params, tmpdir): + """ + Verify that the piggybacked_system() function properly downloads and unpacks + APT packages. + """ + foreign_packages_dir = tmpdir if params['prepared_directory'] else None + + with local_apt.piggybacked_system({ + 'system': 'apt', + **params['props'], + 'packages': ['some-bin-package', 'another-package=1.1-2'] + }, foreign_packages_dir) as piggybacked: + expected_depends = [{'identifier': 'apt-common-licenses'}] \ + if params['base_depends'] else [] + assert piggybacked.resource_must_depend == expected_depends + + archive_files = dict(piggybacked.archive_files()) + + archive_names = [ + 'some-bin-package_1.1-2_all.deb', + 'another-package_1.1-2_all.deb', + 'some-source-package_1.1.orig.tar.gz', + 'some-source-package_1.1-1.dsc', + 'test_data.json' + ] + assert {*archive_files.keys()} == \ + {PurePosixPath('apt') / n for n in archive_names} + + for path in archive_files.values(): + if path.name == 'test_data.json': + assert json.loads(path.read_text()) == { + 'list_identity': params['identity'], + 'keys': params['all_keys'], + 'packages': ['some-bin-package', 'another-package=1.1-2'], + 'with_deps': params['with_deps'] + } + else: + assert path.read_text() == f'dummy {path.name}' + + if foreign_packages_dir is not None: + assert path.parent == foreign_packages_dir / 'apt' + + license_files = {*piggybacked.package_license_files} + + assert license_files == { + PurePosixPath('.apt-root/usr/share/doc/another-package/copyright'), + PurePosixPath('.apt-root/usr/share/doc/some-bin-package/copyright') + } + + assert ['dummy copyright'] * 2 == \ + [piggybacked.resolve_file(p).read_text() for p in license_files] + + for name in ['some-bin-package', 'another-package']: + path = PurePosixPath(f'.apt-root/etc/dummy_{name}_config') + assert piggybacked.resolve_file(path).read_text() == \ + f'dummy {path.name}' + + assert piggybacked.resolve_file(PurePosixPath('a/b/c')) == None + assert piggybacked.resolve_file(PurePosixPath('')) == None + + output_text = 'loading_.apt-root/a/../../../b_outside_piggybacked_dir' + with pytest.raises(FileReferenceError, + match=f'^{re.escape(output_text)}$'): + piggybacked.resolve_file(PurePosixPath('.apt-root/a/../../../b')) + + root = piggybacked.resolve_file(PurePosixPath('.apt-root/dummy')).parent + assert root.is_dir() + + assert not root.exists() + + if foreign_packages_dir: + assert [*tmpdir.iterdir()] == [tmpdir / 'apt'] + +@pytest.mark.subprocess_run(local_apt, run_dpkg_deb) +@pytest.mark.usefixtures('mock_subprocess_run') +def test_piggybacked_system_no_download(): + """ + Verify that the piggybacked_system() function is able to use pre-downloaded + APT packages. + """ + archive_names = { + f'{package}{rest}' + for package in ('some-lib_1:2.3', 'other-lib_4.45.2') + for rest in ('-1_all.deb', '.orig.tar.gz', '-1.debian.tar.xz', '-1.dsc') + } + + with TemporaryDirectory() as td: + td = Path(td) + (td / 'apt').mkdir() + for name in archive_names: + (td / 'apt' / name).write_text(f'dummy {name}') + + with local_apt.piggybacked_system({ + 'system': 'apt', + 'distribution': 'nabia', + 'dependencies': True, + 'packages': ['whatever', 'whatever2'] + }, td) as piggybacked: + archive_files = dict(piggybacked.archive_files()) + + assert {*archive_files.keys()} == \ + {PurePosixPath('apt') / name for name in archive_names} + + for path in archive_files.values(): + assert path.read_text() == f'dummy {path.name}' + + assert {*piggybacked.package_license_files} == { + PurePosixPath('.apt-root/usr/share/doc/some-lib/copyright'), + PurePosixPath('.apt-root/usr/share/doc/other-lib/copyright') + } + + for name in ['some-lib', 'other-lib']: + path = PurePosixPath(f'.apt-root/etc/dummy_{name}_config') + assert piggybacked.resolve_file(path).read_text() == \ + f'dummy {path.name}' + +@pytest.mark.subprocess_run(local_apt, run_missing_executable) +@pytest.mark.usefixtures('mock_download_packages', 'mock_subprocess_run') +def test_piggybacked_system_missing(): + """ + Verify that the piggybacked_system() function raises a proper error when + 'dpkg-deb' is missing. + """ + with pytest.raises(local_apt.AptError, + match='^couldnt_execute_dpkg-deb_is_it_installed$'): + with local_apt.piggybacked_system({ + 'system': 'apt', + 'distribution': 'nabia', + 'packages': ['some-package'], + 'dependencies': False + }, None) as piggybacked: + pass + +@pytest.mark.subprocess_run(local_apt, lambda c, **kw: run_dpkg_deb(c, 1, **kw)) +@pytest.mark.usefixtures('mock_download_packages', 'mock_subprocess_run') +def test_piggybacked_system_fail(): + """ + Verify that the piggybacked_system() function raises a proper error when + 'dpkg-deb -x' command returns non-0. + """ + 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): + with local_apt.piggybacked_system({ + 'system': 'apt', + 'distribution': 'nabia', + 'packages': ['some-package'], + 'dependencies': False + }, None) as piggybacked: + pass |