+def test_unpack():
+ assert unpack_pkt(b'\x81\x00\x02\x00\x00\xFE\x03') == ['0x00']
+ assert unpack_pkt(b'\x81\x00\x02\x12\x00\xEC\x03') == ['0x00']
+ assert unpack_pkt(b'\x81\x00\x02\x13\x00\xEB\x03') == ['0x00']
+
+def test_read_unpack():
+ assert unpack_pkt(b'\x81\x00\x04\x15\xAA\xBB\xCC\xB6\x03') == ['0xAA', '0xBB', '0xCC']
+
+def test_pack_unpack():
+ assert unpack_pkt(pack_pkt(0x13, ['0x00','0x01','0x02'])) == ['0x00', '0x01', '0x02']
+ assert unpack_pkt(pack_pkt(0x34, ['0x00'])) == ['0x00']
+ assert unpack_pkt(pack_pkt(0x00, ['0x00'])) == ['0x00']
+ assert unpack_pkt(pack_pkt(0x12, ['0x00'])) == ['0x00']
+
+def test_err_unpack():
+ with pytest.raises(ValueError, match=r".*0xC3.*") as excinfo:
+ unpack_pkt(b'\x81\x00\x02\x93\xC3\x38\x03')
+ assert str(excinfo.value) == 'MCU encountered error 0xC3'