Verify get_be_uint16 is what we need for ports

tests/unpacker_state_test.py

@@ -34,6 +34,10 @@ def test_unpack_be_uint16():
     assert u.get_be_uint16() == 51
     u = Unpacker(b'\x01\x00')
     assert u.get_be_uint16() == 256
+    # this is needed for the connless lis2
+    # packed_addresses field
+    u = Unpacker(b'\x20\x6F')
+    assert u.get_be_uint16() == 8303
 
 def test_unpack_multiple_be_uint16():
     u = Unpacker(b'\x00\x01\x00\x02')