def test_read_uncompressed(self):
self.uncompressed.seek(0)
block = AttachmentBlock(address=97, stream=self.uncompressed)
self.assertEqual(block.file_name, self.filename)
self.assertEqual(block.extract(), self.data)
self.assertEqual(block.comment, self.comment)
def test_bytes_uncompressed(self):
attachment = AttachmentBlock(
file_name=self.filename,
data=self.data,
embedded=True,
compressed=False,
)
attachment.comment = self.comment
stream = BytesIO()
stream.write(b"\0")
blocks = []
attachment.to_blocks(1, blocks, {})
for block in blocks:
stream.write(bytes(block))
address = attachment.address
block = AttachmentBlock(address=address, stream=stream)
self.assertEqual(block.comment, self.comment)
self.assertEqual(block.file_name, self.filename)
self.assertEqual(block.extract(), self.data)
def test_read_wrong_id(self):
self.compressed.seek(0)
stream = BytesIO(self.compressed.read())
stream.seek(97)
stream.write(b"_NOK")
with self.assertRaises(MdfException):
AttachmentBlock(address=97, stream=stream)