def test_from_ctype(self):
ae = self.assertEqual
data_le = b"\xBD\x42\x57\xAE"
hresult = hresult_le.from_buffer_copy(data_le)
hresult = HRESULT.from_ctype(hresult)
ae(hresult.s, 1)
ae(hresult.r, 0)
ae(hresult.c, 1)
ae(hresult.n, 0)
ae(hresult.x, 1)
ae(hresult.facility, 0x0657)
ae(hresult.code, 0x42BD)
def test_from_ctype(self):
ae = self.assertEqual
data_le = b"\xBD\x42\x57\xAE"
hresult = hresult_le.from_buffer_copy(data_le)
hresult = HRESULT.from_ctype(hresult)
ae(hresult.s, 1)
ae(hresult.r, 0)
ae(hresult.c, 1)
ae(hresult.n, 0)
ae(hresult.x, 1)
ae(hresult.facility, 0x0657)
ae(hresult.code, 0x42BD)
def from_stream(cls, stream, offset=None, byte_order=LITTLE_ENDIAN):
"""Creates a ``HRESULT`` object from a stream.
:type stream: :class:`lf.dec.IStream`
:param stream: A stream that contains the HRESULT structure.
:type offset: ``int`` or ``None``
:param offset: The start of the HRESULT structure in the stream.
:type byte_order: constant
:param byte_order: The byte order to use (from :mod:`lf.dtypes`)
:rtype: :class:`HRESULT`
:returns: The extracted :class:`HRESULT` object.
"""
if offset is not None:
stream.seek(offset, SEEK_SET)
# end if
data = stream.read(4)
if byte_order == LITTLE_ENDIAN:
hresult = hresult_le.from_buffer_copy(data)
else:
hresult = hresult_be.from_buffer_copy(data)
# end if
return HRESULT((
hresult.code,
hresult.facility,
hresult.x,
hresult.n,
hresult.c,
hresult.r,
hresult.s
))
