1#
2# This file is part of pyasn1-modules software.
3#
4# Created by Russ Housley
5# Copyright (c) 2019, Vigil Security, LLC
6# License: http://snmplabs.com/pyasn1/license.html
7#
8
9import sys
10
11from pyasn1.codec.der.decoder import decode as der_decode
12from pyasn1.codec.der.encoder import encode as der_encode
13
14from pyasn1_modules import pem
15from pyasn1_modules import rfc3274
16from pyasn1_modules import rfc5652
17
18try:
19    import unittest2 as unittest
20except ImportError:
21    import unittest
22
23
24class CompressedDataTestCase(unittest.TestCase):
25    compressed_data_pem_text = """\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37"""
38
39    def setUp(self):
40        self.asn1Spec = rfc5652.ContentInfo()
41
42    def testDerCodec(self):
43        substrate = pem.readBase64fromText(self.compressed_data_pem_text)
44        asn1Object, rest = der_decode(substrate, asn1Spec=self.asn1Spec)
45        assert not rest
46        assert asn1Object.prettyPrint()
47        assert der_encode(asn1Object) == substrate
48
49        assert asn1Object['contentType'] == rfc3274.id_ct_compressedData
50        cd, rest = der_decode(asn1Object['content'], asn1Spec=rfc3274.CompressedData())
51        assert not rest
52        assert cd.prettyPrint()
53        assert der_encode(cd) == asn1Object['content']
54
55        assert cd['compressionAlgorithm']['algorithm'] == rfc3274.id_alg_zlibCompress
56        assert cd['encapContentInfo']['eContentType'] == rfc5652.id_data
57
58    def testOpenTypes(self):
59        substrate = pem.readBase64fromText(self.compressed_data_pem_text)
60        asn1Object, rest = der_decode(substrate,
61            asn1Spec=self.asn1Spec,
62            decodeOpenTypes=True)
63        assert not rest
64        assert asn1Object.prettyPrint()
65        assert der_encode(asn1Object) == substrate
66
67        assert asn1Object['contentType'] == rfc3274.id_ct_compressedData
68        cd = asn1Object['content']
69        assert cd['compressionAlgorithm']['algorithm'] == rfc3274.id_alg_zlibCompress
70        assert cd['encapContentInfo']['eContentType'] == rfc5652.id_data
71
72
73suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
74
75if __name__ == '__main__':
76    import sys
77
78    result = unittest.TextTestRunner(verbosity=2).run(suite)
79    sys.exit(not result.wasSuccessful())
80