def header_content(self) -> bytes: return b"".join([ fields.DlmsHdlcFrameFormatField( length=self.frame_length, segmented=self.segmented).to_bytes(), self.destination_address.to_bytes(), self.source_address.to_bytes(), self.get_control_field().to_bytes(), ])
def test_hdlc_frame_format_to_bytes_segmented(): f = fields.DlmsHdlcFrameFormatField(length=29, segmented=True) assert f.to_bytes().hex() == "a81d"
def test_hdlc_frame_format_raises_value_error_too_long(): with pytest.raises(ValueError): fields.DlmsHdlcFrameFormatField(length=999999, segmented=False)