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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Tests for the bzip2 decompressor object."""
from __future__ import unicode_literals
import unittest
from dfvfs.compression import bzip2_decompressor
from dfvfs.lib import errors
from tests.compression import test_lib
class BZIP2DecompressorTestCase(test_lib.DecompressorTestCase):
"""Tests for the bzip2 decompressor object."""
def testDecompress(self):
"""Tests the Decompress method."""
decompressor = bzip2_decompressor.BZIP2Decompressor()
compressed_data = (
b'BZh91AY&SYa\x0e\xf5A\x00\x00\x02\x13\x80@\x01\x04\x00"`\x0c\x00 '
b'\x00!\xa3M\x19\x082b\x18Q#\xa5\xc1"\xf1w$S\x85\t\x06\x10\xefT\x10')
uncompressed_data, _ = decompressor.Decompress(compressed_data)
expected_uncompressed_data = b'This is a test.'
self.assertEqual(uncompressed_data, expected_uncompressed_data)
# Test to trigger bz2 raising EOFError.
with self.assertRaises(errors.BackEndError):
decompressor.Decompress(b'This is a test.')
# Test to trigger bz2 raising IOError.
decompressor = bzip2_decompressor.BZIP2Decompressor()
with self.assertRaises(errors.BackEndError):
decompressor.Decompress(b'This is a test.')
if __name__ == '__main__':
unittest.main()
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