VulpesOS/tundra/tests/test_system_image.py

93 lines
4.8 KiB
Python

# SPDX-License-Identifier: MPL-2.0
"""Exercise ownership/format safeguards without writing to a real device."""
import importlib.util
import json
import os
from pathlib import Path
import tempfile
import unittest
from unittest.mock import patch
ROOT = Path(__file__).resolve().parents[1]
spec = importlib.util.spec_from_file_location('system_image', ROOT/'tools/build-system-image.py')
image = importlib.util.module_from_spec(spec)
spec.loader.exec_module(image)
class SystemImageTests(unittest.TestCase):
def test_hardware_reference_requires_services_not_just_display(self):
with tempfile.TemporaryDirectory() as temporary:
root = Path(temporary)
value = {'architecture': 'arm64', 'packages': {'phoc': {}}, 'files': {}}
path = root/'manifest.json'
path.write_text(json.dumps(value))
with self.assertRaisesRegex(ValueError, 'missing packages'):
image.validate_reference(root)
value['packages'] = {name+':arm64': {} for name in image.HARDWARE_PACKAGES}
path.write_text(json.dumps(value))
with self.assertRaisesRegex(ValueError, 'executable'):
image.validate_reference(root)
value['files'] = {name: {} for name in
('/usr/sbin/ofonod', '/usr/sbin/NetworkManager', '/usr/bin/phoc')}
path.write_text(json.dumps(value))
image.validate_reference(root)
value['architecture'] = 'amd64'
path.write_text(json.dumps(value))
with self.assertRaisesRegex(ValueError, 'ARM64'):
image.validate_reference(root)
def test_distribution_omits_working_documents_but_keeps_component_licenses(self):
with tempfile.TemporaryDirectory() as temporary:
root=Path(temporary); product=root/'product'; reference=root/'reference'
(product/'component').mkdir(parents=True);reference.mkdir()
(product/'README.md').write_text('Internal working document')
(product/'component/LICENSE.md').write_text('Original upstream notice')
(reference/'manifest.json').write_text(json.dumps({'packages':{
'example':{'binary:Package':'example','Version':'1',
'source:Package':'example','source:Version':'1',
'localPath':'private/path'}}}))
image.prepare_distribution_metadata(product,reference)
self.assertFalse((product/'README.md').exists())
self.assertEqual((product/'component/LICENSE').read_text(),'Original upstream notice')
inventory=json.loads((product/'runtime-packages.json').read_text())
self.assertEqual(inventory['packages'][0]['binary:Package'],'example')
self.assertNotIn('localPath',inventory['packages'][0])
self.assertTrue((product/'NOTICE').is_file())
def test_conflicting_project_license_is_not_overwritten(self):
with tempfile.TemporaryDirectory() as temporary:
product=Path(temporary)
(product/'LICENSE').write_text('Keep this upstream notice')
with self.assertRaisesRegex(ValueError,'existing notice'):
image.prepare_distribution_metadata(product,Path('/unused'))
self.assertEqual((product/'LICENSE').read_text(),'Keep this upstream notice')
def test_pack_refuses_real_ownership_changes_outside_fakeroot(self):
with patch.dict(os.environ, {}, clear=True), patch.object(image.os, 'lchown') as chown:
with self.assertRaisesRegex(RuntimeError, 'fakeroot'):
image.pack(Path('/not-a-real-root'), Path('/not-a-real-image'))
chown.assert_not_called()
def test_pack_keeps_system_owned_by_root_and_session_owned_by_app_user(self):
with tempfile.TemporaryDirectory() as temporary:
root = Path(temporary)/'root'
for name in ('opt/vulpes/host', 'home/droidian', 'etc'):
(root/name).mkdir(parents=True)
config = root/'etc/os-release'; config.touch()
app = root/'opt/vulpes/host/shell.js'; app.touch()
owners = {}
with patch.dict(os.environ, {'FAKEROOTKEY': 'test'}), \
patch.object(image.os, 'lchown', side_effect=lambda p,u,g: owners.update({p:(u,g)})), \
patch.object(image.subprocess, 'run') as run:
image.pack(root, Path(temporary)/'system.ext4')
self.assertEqual(owners[config], (0,0))
self.assertEqual(owners[app], (32011,32011))
args = run.call_args.args[0]
features = args[args.index('-O')+1]
self.assertTrue(features.startswith('none,'))
self.assertNotIn('orphan_file', features)
self.assertIn('TUNDRA_SYSTEM', args)
if __name__ == '__main__':
unittest.main()