def test_mkmarker_nested(self):
buf = MsgBuffer()
with buf.add_opaque_deferred(2):
buf.add_uint16(0x1122)
buf.add_uint32(0xaabbccdd)
buf.add_uint8(0xff)
with buf.add_opaque_deferred(3):
buf.add_uint16(0xaaaa)
buf.add_uint16(0xbbbb)
buf.add_uint16(0xcccc)
buf.add_uint8(0x55)
self.assertEqual(
buf.data,
bytes.fromhex("0011 1122 aabbccdd ff 000007 aaaa bbbb cccc 55"))
def test_mkopaque_annotated(self):
buf = MsgBuffer()
with buf.new_marker("MainPayload"), buf.add_opaque_deferred(2):
with buf.new_marker("AnimalCounts"), buf.add_opaque_deferred(2):
with buf.new_marker("CowCount"):
buf.add_uint16(9000)
with buf.new_marker("SheepCount"):
buf.add_uint16(4321)
with buf.new_marker("ChickenCount"):
buf.add_uint32(12345678)
with buf.new_marker("VehicleCounts"), buf.add_opaque_deferred(2):
with buf.new_marker("CarCount"):
buf.add_uint24(133)
with buf.new_marker("TrainCount"):
buf.add_uint24(92)