Добавить порт SETProtocol v2 для TMS320F2812

python/tests/test_setprotocol_can.py

@@ -0,0 +1,42 @@
+from setprotocol import Frame, FrameFlag, MessageType, build_frame, decode_datagram
+from setprotocol.can import CanAddress, CanFrame, CanReassembler, segment
+
+
+def test_can_id_roundtrip():
+    value = CanAddress(destination=13, source=0, priority=1, channel=7)
+    assert CanAddress.unpack(value.pack()) == value
+
+
+def test_segmented_setp_frame_roundtrip():
+    packet = build_frame(
+        Frame(
+            message_type=MessageType.FW_DATA,
+            sequence=0x1234,
+            payload=bytes(range(76)),
+            flags=FrameFlag.ACK_REQUIRED | FrameFlag.PRIORITY,
+            source=0,
+            destination=13,
+        )
+    )
+    frames = segment(packet, CanAddress(13, 0, priority=1, channel=1))
+    assert len(frames) == 14
+    reassembler = CanReassembler()
+    restored = None
+    for now_ms, frame in enumerate(frames):
+        restored = reassembler.feed(frame, now_ms)
+    assert restored == packet
+    assert decode_datagram(restored).payload == bytes(range(76))
+
+
+def test_reassembler_rejects_wrong_sequence():
+    packet = build_frame(Frame(MessageType.PING, 1, source=0, destination=13))
+    frames = segment(packet, CanAddress(13, 0))
+    reassembler = CanReassembler()
+    assert reassembler.feed(frames[0], 0) is None
+    damaged = CanFrame(frames[1].can_id, bytes((0x22,)) + frames[1].data[1:])
+    try:
+        reassembler.feed(damaged, 1)
+    except ValueError as error:
+        assert "последовательность" in str(error)
+    else:
+        raise AssertionError("wrong sequence must fail")