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.')
def __init__(self, stream_start):
"""Initializes a gzip member decompressor wrapper.
Args:
stream_start (int): offset to the compressed stream within the containing
file object.
"""
self._decompressor = zlib_decompressor.DeflateDecompressor()
self.last_read = stream_start
self.uncompressed_offset = 0
self._compressed_data = b''