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utils: COMPREHENSION-TLV support

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Change-Id: I8d969382b73fa152ee09c456fa4aee428fb36285
This commit is contained in:
Harald Welte
2021-05-04 18:18:09 +02:00
parent 485692bc77
commit 9f3b44d6ff
2 changed files with 66 additions and 0 deletions
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22
tests/test_utils.py
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@@ -179,6 +179,28 @@ class TestBerTlv(unittest.TestCase):
res = utils.bertlv_parse_one(b'\x81\x01\x01');
self.assertEqual(res, ({'tag':1, 'constructed':False, 'class':2}, 1, b'\x01', b''))
class TestComprTlv(unittest.TestCase):
def test_ComprTlvTagDec(self):
res = utils.comprehensiontlv_parse_tag(b'\x12\x23')
self.assertEqual(res, ({'tag': 0x12, 'comprehension': False}, b'\x23'))
res = utils.comprehensiontlv_parse_tag(b'\x92')
self.assertEqual(res, ({'tag': 0x12, 'comprehension': True}, b''))
res = utils.comprehensiontlv_parse_tag(b'\x7f\x12\x34')
self.assertEqual(res, ({'tag': 0x1234, 'comprehension': False}, b''))
res = utils.comprehensiontlv_parse_tag(b'\x7f\x82\x34\x56')
self.assertEqual(res, ({'tag': 0x234, 'comprehension': True}, b'\x56'))
def test_ComprTlvTagEnc(self):
res = utils.comprehensiontlv_encode_tag(0x12)
self.assertEqual(res, b'\x12')
res = utils.comprehensiontlv_encode_tag({'tag': 0x12})
self.assertEqual(res, b'\x12')
res = utils.comprehensiontlv_encode_tag({'tag': 0x12, 'comprehension':True})
self.assertEqual(res, b'\x92')
res = utils.comprehensiontlv_encode_tag(0x1234)
self.assertEqual(res, b'\x7f\x12\x34')
res = utils.comprehensiontlv_encode_tag({'tag': 0x1234, 'comprehension':True})
self.assertEqual(res, b'\x7f\x92\x34')
if __name__ == "__main__":
unittest.main()