def test_posix_backend_failed_stage(self):
"""Test reading a file from posix backend."""
backend = PosixBackendArchive('/tmp/')
backend.open('1234', 'w')
backend.close()
backend.open('1234', 'r')
# easiest way to unit test is look at class variable
# pylint: disable=protected-access
backend._file.stage = mock.MagicMock(
side_effect=IOError('Unable to Stage!'))
# pylint: enable=protected-access
with self.assertRaises(ArchiveInterfaceError) as exc:
backend.stage()
self.assertTrue(
'Can\'t stage posix file with error' in str(exc.exception))
backend.close()
def test_posix_backend_failed_fd(self):
"""Test reading to a failed file fd."""
backend = PosixBackendArchive('/tmp/')
# test failed write
backend.open('1234', 'w')
# easiest way to unit test is look at class variable
# pylint: disable=protected-access
backend._file = None
# pylint: enable=protected-access
with self.assertRaises(ArchiveInterfaceError) as exc:
backend.write('Something to write')
self.assertTrue('Internal file handle invalid' in str(exc.exception))
with self.assertRaises(ArchiveInterfaceError) as exc:
backend.read(1024)
self.assertTrue('Internal file handle invalid' in str(exc.exception))
with self.assertRaises(ArchiveInterfaceError) as exc:
backend.stage()
self.assertTrue('Internal file handle invalid' in str(exc.exception))
with self.assertRaises(ArchiveInterfaceError) as exc:
backend.status()
self.assertTrue('Internal file handle invalid' in str(exc.exception))