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tests: check importing empty data into ThinVolume

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Verify if it really discards old content.

QubesOS/qubes-issues#5192
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Marek Marczykowski-Górecki 2019-07-28 22:06:30 +02:00
parent 790c2ad8cb
commit 19186f7840
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1 changed files with 31 additions and 0 deletions
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31
qubes/tests/storage_lvm.py
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@ -843,6 +843,37 @@ class TC_00_ThinPool(ThinPoolBase):
self.loop.run_until_complete(volume.remove())
def test_034_import_data_empty(self):
config = {
'name': 'root',
'pool': self.pool.name,
'save_on_stop': True,
'rw': True,
'size': 1024 * 1024,
}
vm = qubes.tests.storage.TestVM(self)
volume = self.app.get_pool(self.pool.name).init_volume(vm, config)
with unittest.mock.patch('time.time') as mock_time:
mock_time.side_effect = [1521065905]
self.loop.run_until_complete(volume.create())
p = self.loop.run_until_complete(asyncio.create_subprocess_exec(
'sudo', 'dd', 'if=/dev/urandom', 'of=' + volume.path, 'count=1', 'bs=1M'
))
self.loop.run_until_complete(p.wait())
import_path = self.loop.run_until_complete(volume.import_data())
self.assertNotEqual(volume.path, import_path)
p = self.loop.run_until_complete(asyncio.create_subprocess_exec(
'sudo', 'touch', import_path))
self.loop.run_until_complete(p.wait())
self.loop.run_until_complete(volume.import_data_end(True))
self.assertFalse(os.path.exists(import_path), import_path)
p = self.loop.run_until_complete(asyncio.create_subprocess_exec(
'sudo', 'cat', volume.path,
stdout=subprocess.PIPE
))
volume_data, _ = self.loop.run_until_complete(p.communicate())
self.assertEqual(volume_data.strip(b'\0'), b'')
def test_040_volatile(self):
'''Volatile volume test'''
config = {