tests: check importing empty data into ReflinkVolume
Verify if it really discards old content. QubesOS/qubes-issues#5192
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@ -52,6 +52,7 @@ class TestVM(object):
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def __init__(self, test, template=None):
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def __init__(self, test, template=None):
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self.app = test.app
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self.app = test.app
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self.name = test.make_vm_name('appvm')
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self.name = test.make_vm_name('appvm')
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self.dir_path_prefix = 'appvms'
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self.dir_path = '/var/lib/qubes/appvms/' + self.name
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self.dir_path = '/var/lib/qubes/appvms/' + self.name
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self.log = qubes.log.get_vm_logger(self.name)
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self.log = qubes.log.get_vm_logger(self.name)
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@ -28,8 +28,16 @@ import subprocess
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import sys
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import sys
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import qubes.tests
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import qubes.tests
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import qubes.tests.storage
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from qubes.storage import reflink
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from qubes.storage import reflink
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class TestApp(qubes.Qubes):
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''' A Mock App object '''
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def __init__(self, *args, **kwargs): # pylint: disable=unused-argument
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super(TestApp, self).__init__('/tmp/qubes-test.xml', load=False,
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offline_mode=True, **kwargs)
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self.load_initial_values()
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class ReflinkMixin:
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class ReflinkMixin:
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def setUp(self, fs_type='btrfs'): # pylint: disable=arguments-differ
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def setUp(self, fs_type='btrfs'): # pylint: disable=arguments-differ
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@ -84,6 +92,53 @@ class ReflinkMixin:
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for dev in (dev_from_real, dev_from_sym):
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for dev in (dev_from_real, dev_from_sym):
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self.assertEqual(get_blockdev_size(dev), size_resized)
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self.assertEqual(get_blockdev_size(dev), size_resized)
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class TC_10_ReflinkPool(qubes.tests.QubesTestCase):
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def setUp(self):
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super().setUp()
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self.test_dir = '/var/tmp/test-reflink-units-on-btrfs'
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pool_conf = {
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'driver': 'file-reflink',
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'dir_path': self.test_dir,
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'name': 'test-btrfs'
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}
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mkdir_fs(self.test_dir, 'btrfs', cleanup_via=self.addCleanup)
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self.app = TestApp()
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self.pool = self.loop.run_until_complete(self.app.add_pool(**pool_conf))
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self.app.default_pool = self.app.get_pool(pool_conf['name'])
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def tearDown(self) -> None:
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self.app.default_pool = 'varlibqubes'
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self.loop.run_until_complete(self.app.remove_pool(self.pool.name))
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del self.pool
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self.app.close()
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del self.app
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super(TC_10_ReflinkPool, self).tearDown()
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def test_012_import_data_empty(self):
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config = {
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'name': 'root',
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'pool': self.pool.name,
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'save_on_stop': True,
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'rw': True,
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'size': 1024 * 1024,
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}
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vm = qubes.tests.storage.TestVM(self)
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volume = self.pool.init_volume(vm, config)
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self.loop.run_until_complete(volume.create())
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with open(volume.export(), 'w') as vol_file:
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vol_file.write('test data')
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import_path = self.loop.run_until_complete(volume.import_data())
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self.assertNotEqual(volume.path, import_path)
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with open(import_path, 'w+'):
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pass
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self.loop.run_until_complete(volume.import_data_end(True))
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self.assertFalse(os.path.exists(import_path), import_path)
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with open(volume.export()) as volume_file:
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volume_data = volume_file.read().strip('\0')
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self.assertNotEqual(volume_data, 'test data')
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class TC_00_ReflinkOnBtrfs(ReflinkMixin, qubes.tests.QubesTestCase):
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class TC_00_ReflinkOnBtrfs(ReflinkMixin, qubes.tests.QubesTestCase):
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def setUp(self): # pylint: disable=arguments-differ
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def setUp(self): # pylint: disable=arguments-differ
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super().setUp('btrfs')
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super().setUp('btrfs')
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