Add more unit test cases for COBS/R

Author: cmcqueen

python2/cobs/cobsr/test.py

@@ -39,7 +39,11 @@ class PredefinedEncodingsTests(unittest.TestCase):
         [ "\x7F",                                   "\x7F"                                                          ],
         [ "\x80",                                   "\x80"                                                          ],
         [ "\xD5",                                   "\xD5"                                                          ],
-        [ "1",                                      "1"                                                             ],
+        [ "\xFE",                                   "\xFE"                                                          ],
+        [ "\xFF",                                   "\xFF"                                                          ],
+        [ "a\x02",                                  "\x03a\x02"                                                     ],
+        [ "a\x03",                                  "\x03a"                                                         ],
+        [ "a\xFF",                                  "\xFFa"                                                         ],
         [ "\x05\x04\x03\x02\x01",                   "\x06\x05\x04\x03\x02\x01"                                      ],
         [ "12345",                                  "51234"                                                         ],
         [ "12345\x00\x04\x03\x02\x01",              "\x0612345\x05\x04\x03\x02\x01"                                 ],

python3/cobs/cobsr/test.py

@@ -39,7 +39,11 @@ class PredefinedEncodingsTests(unittest.TestCase):
         [ b"\x7F",                              b"\x7F"                                                         ],
         [ b"\x80",                              b"\x80"                                                         ],
         [ b"\xD5",                              b"\xD5"                                                         ],
-        [ b"1",                                 b"1"                                                            ],
+        [ b"\xFE",                              b"\xFE"                                                         ],
+        [ b"\xFF",                              b"\xFF"                                                         ],
+        [ b"a\x02",                             b"\x03a\x02"                                                    ],
+        [ b"a\x03",                             b"\x03a"                                                        ],
+        [ b"a\xFF",                             b"\xFFa"                                                        ],
         [ b"\x05\x04\x03\x02\x01",              b"\x06\x05\x04\x03\x02\x01"                                     ],
         [ b"12345",                             b"51234"                                                        ],
         [ b"12345\x00\x04\x03\x02\x01",         b"\x0612345\x05\x04\x03\x02\x01"                                ],