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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Tests for the zlib decompressor object."""
from __future__ import unicode_literals
import unittest
from dfvfs.compression import zlib_decompressor
from dfvfs.lib import errors
from tests.compression import test_lib
class ZlibDecompressorTestCase(test_lib.DecompressorTestCase):
"""Tests for the zlib decompressor object."""
def testDecompress(self):
"""Tests the Decompress method."""
decompressor = zlib_decompressor.ZlibDecompressor()
compressed_data = (
b'x\x9c\x0b\xc9\xc8,V\x00\xa2D\x85\x92\xd4\xe2\x12=\x00)\x97\x05$')
uncompressed_data, _ = decompressor.Decompress(compressed_data)
expected_uncompressed_data = b'This is a test.'
self.assertEqual(uncompressed_data, expected_uncompressed_data)
decompressor = zlib_decompressor.ZlibDecompressor()
with self.assertRaises(errors.BackEndError):
decompressor.Decompress(b'This is a test.')
class DeflateDecompressorTestCase(test_lib.DecompressorTestCase):
"""Tests for the zlib decompressor object."""
def testDecompress(self):
"""Tests the Decompress method."""
decompressor = zlib_decompressor.DeflateDecompressor()
compressed_data = (
b'\x0b\xc9\xc8,V\x00\xa2D\x85\x92\xd4\xe2\x12=\x00)\x97\x05$')
uncompressed_data, _ = decompressor.Decompress(compressed_data)
expected_uncompressed_data = b'This is a test.'
self.assertEqual(uncompressed_data, expected_uncompressed_data)
decompressor = zlib_decompressor.DeflateDecompressor()
with self.assertRaises(errors.BackEndError):
decompressor.Decompress(b'This is a test.')
if __name__ == '__main__':
unittest.main()
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