def _content_reader(self, max_length):
if max_length is None:
length_to_read = self._remaining_length
else:
length_to_read = min(max_length, self._remaining_length)
self._remaining_length -= length_to_read
bytes = self.reader_func(length_to_read)
if len(bytes) != length_to_read:
raise errors.UnexpectedEndOfContainerError()
return bytes
def _iter_record_objects(self):
while True:
record_kind = self.reader_func(1)
if record_kind == 'B':
# Bytes record.
reader = BytesRecordReader(self._source)
yield reader
elif record_kind == 'E':
# End marker. There are no more records.
return
elif record_kind == '':
# End of stream encountered, but no End Marker record seen, so
# this container is incomplete.
raise errors.UnexpectedEndOfContainerError()
else:
# Unknown record type.
raise errors.UnknownRecordTypeError(record_kind)
def _read_line(self):
line = self._source.readline()
if not line.endswith('\n'):
raise errors.UnexpectedEndOfContainerError()
return line.rstrip('\n')
def test_unexpected_end_of_container(self):
"""Test the formatting of UnexpectedEndOfContainerError."""
e = errors.UnexpectedEndOfContainerError()
self.assertEqual("Unexpected end of container stream", str(e))