diff options
Diffstat (limited to 'tests/codec/der/test_decoder.py')
-rw-r--r-- | tests/codec/der/test_decoder.py | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/tests/codec/der/test_decoder.py b/tests/codec/der/test_decoder.py index a76c435..51ce296 100644 --- a/tests/codec/der/test_decoder.py +++ b/tests/codec/der/test_decoder.py @@ -14,6 +14,10 @@ except ImportError: from tests.base import BaseTestCase +from pyasn1.type import tag +from pyasn1.type import namedtype +from pyasn1.type import opentype +from pyasn1.type import univ from pyasn1.codec.der import decoder from pyasn1.compat.octets import ints2octs, null from pyasn1.error import PyAsn1Error @@ -73,6 +77,296 @@ class OctetStringDecoderTestCase(BaseTestCase): assert 0, 'chunked encoding tolerated' +class SequenceDecoderWithUntaggedOpenTypesTestCase(BaseTestCase): + def setUp(self): + openType = opentype.OpenType( + 'id', + {1: univ.Integer(), + 2: univ.OctetString()} + ) + self.s = univ.Sequence( + componentType=namedtype.NamedTypes( + namedtype.NamedType('id', univ.Integer()), + namedtype.NamedType('blob', univ.Any(), openType=openType) + ) + ) + + def testDecodeOpenTypesChoiceOne(self): + s, r = decoder.decode( + ints2octs((48, 6, 2, 1, 1, 2, 1, 12)), asn1Spec=self.s, + decodeOpenTypes=True + ) + assert not r + assert s[0] == 1 + assert s[1] == 12 + + def testDecodeOpenTypesChoiceTwo(self): + s, r = decoder.decode( + ints2octs((48, 16, 2, 1, 2, 4, 11, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110)), asn1Spec=self.s, + decodeOpenTypes=True + ) + assert not r + assert s[0] == 2 + assert s[1] == univ.OctetString('quick brown') + + def testDecodeOpenTypesUnknownType(self): + try: + s, r = decoder.decode( + ints2octs((48, 6, 2, 1, 2, 6, 1, 39)), asn1Spec=self.s, + decodeOpenTypes=True + ) + + except PyAsn1Error: + pass + + else: + assert False, 'unknown open type tolerated' + + def testDecodeOpenTypesUnknownId(self): + s, r = decoder.decode( + ints2octs((48, 6, 2, 1, 3, 6, 1, 39)), asn1Spec=self.s, + decodeOpenTypes=True + ) + assert not r + assert s[0] == 3 + assert s[1] == univ.OctetString(hexValue='060127') + + def testDontDecodeOpenTypesChoiceOne(self): + s, r = decoder.decode( + ints2octs((48, 6, 2, 1, 1, 2, 1, 12)), asn1Spec=self.s + ) + assert not r + assert s[0] == 1 + assert s[1] == ints2octs((2, 1, 12)) + + def testDontDecodeOpenTypesChoiceTwo(self): + s, r = decoder.decode( + ints2octs((48, 16, 2, 1, 2, 4, 11, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110)), asn1Spec=self.s + ) + assert not r + assert s[0] == 2 + assert s[1] == ints2octs((4, 11, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110)) + + +class SequenceDecoderWithImplicitlyTaggedOpenTypesTestCase(BaseTestCase): + def setUp(self): + openType = opentype.OpenType( + 'id', + {1: univ.Integer(), + 2: univ.OctetString()} + ) + self.s = univ.Sequence( + componentType=namedtype.NamedTypes( + namedtype.NamedType('id', univ.Integer()), + namedtype.NamedType( + 'blob', univ.Any().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 3)), openType=openType + ) + ) + ) + + def testDecodeOpenTypesChoiceOne(self): + s, r = decoder.decode( + ints2octs((48, 8, 2, 1, 1, 131, 3, 2, 1, 12)), asn1Spec=self.s, decodeOpenTypes=True + ) + assert not r + assert s[0] == 1 + assert s[1] == 12 + + def testDecodeOpenTypesUnknownId(self): + s, r = decoder.decode( + ints2octs((48, 8, 2, 1, 3, 131, 3, 2, 1, 12)), asn1Spec=self.s, decodeOpenTypes=True + ) + assert not r + assert s[0] == 3 + assert s[1] == univ.OctetString(hexValue='02010C') + + +class SequenceDecoderWithExplicitlyTaggedOpenTypesTestCase(BaseTestCase): + def setUp(self): + openType = opentype.OpenType( + 'id', + {1: univ.Integer(), + 2: univ.OctetString()} + ) + self.s = univ.Sequence( + componentType=namedtype.NamedTypes( + namedtype.NamedType('id', univ.Integer()), + namedtype.NamedType( + 'blob', univ.Any().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 3)), openType=openType + ) + ) + ) + + def testDecodeOpenTypesChoiceOne(self): + s, r = decoder.decode( + ints2octs((48, 8, 2, 1, 1, 163, 3, 2, 1, 12)), asn1Spec=self.s, decodeOpenTypes=True + ) + assert not r + assert s[0] == 1 + assert s[1] == 12 + + def testDecodeOpenTypesUnknownId(self): + s, r = decoder.decode( + ints2octs((48, 8, 2, 1, 3, 163, 3, 2, 1, 12)), asn1Spec=self.s, decodeOpenTypes=True + ) + assert not r + assert s[0] == 3 + assert s[1] == univ.OctetString(hexValue='02010C') + + +class SequenceDecoderWithUnaggedSetOfOpenTypesTestCase(BaseTestCase): + def setUp(self): + openType = opentype.OpenType( + 'id', + {1: univ.Integer(), + 2: univ.OctetString()} + ) + self.s = univ.Sequence( + componentType=namedtype.NamedTypes( + namedtype.NamedType('id', univ.Integer()), + namedtype.NamedType('blob', univ.SetOf(componentType=univ.Any()), + openType=openType) + ) + ) + + def testDecodeOpenTypesChoiceOne(self): + s, r = decoder.decode( + ints2octs((48, 8, 2, 1, 1, 49, 3, 2, 1, 12)), asn1Spec=self.s, + decodeOpenTypes=True + ) + assert not r + assert s[0] == 1 + assert s[1][0] == 12 + + def testDecodeOpenTypesChoiceTwo(self): + s, r = decoder.decode( + ints2octs((48, 18, 2, 1, 2, 49, 13, 4, 11, 113, 117, 105, 99, + 107, 32, 98, 114, 111, 119, 110)), asn1Spec=self.s, + decodeOpenTypes=True + ) + assert not r + assert s[0] == 2 + assert s[1][0] == univ.OctetString('quick brown') + + def testDecodeOpenTypesUnknownType(self): + try: + s, r = decoder.decode( + ints2octs((48, 6, 2, 1, 2, 6, 1, 39)), asn1Spec=self.s, + decodeOpenTypes=True + ) + + except PyAsn1Error: + pass + + else: + assert False, 'unknown open type tolerated' + + def testDecodeOpenTypesUnknownId(self): + s, r = decoder.decode( + ints2octs((48, 8, 2, 1, 3, 49, 3, 2, 1, 12)), asn1Spec=self.s, + decodeOpenTypes=True + ) + assert not r + assert s[0] == 3 + assert s[1][0] == univ.OctetString(hexValue='02010c') + + def testDontDecodeOpenTypesChoiceOne(self): + s, r = decoder.decode( + ints2octs((48, 8, 2, 1, 1, 49, 3, 2, 1, 12)), asn1Spec=self.s + ) + assert not r + assert s[0] == 1 + assert s[1][0] == ints2octs((2, 1, 12)) + + def testDontDecodeOpenTypesChoiceTwo(self): + s, r = decoder.decode( + ints2octs((48, 18, 2, 1, 2, 49, 13, 4, 11, 113, 117, 105, 99, + 107, 32, 98, 114, 111, 119, 110)), asn1Spec=self.s + ) + assert not r + assert s[0] == 2 + assert s[1][0] == ints2octs((4, 11, 113, 117, 105, 99, 107, 32, 98, 114, + 111, 119, 110)) + + +class SequenceDecoderWithImplicitlyTaggedSetOfOpenTypesTestCase(BaseTestCase): + def setUp(self): + openType = opentype.OpenType( + 'id', + {1: univ.Integer(), + 2: univ.OctetString()} + ) + self.s = univ.Sequence( + componentType=namedtype.NamedTypes( + namedtype.NamedType('id', univ.Integer()), + namedtype.NamedType( + 'blob', univ.SetOf( + componentType=univ.Any().subtype( + implicitTag=tag.Tag( + tag.tagClassContext, tag.tagFormatSimple, 3))), + openType=openType + ) + ) + ) + + def testDecodeOpenTypesChoiceOne(self): + s, r = decoder.decode( + ints2octs((48, 10, 2, 1, 1, 49, 5, 131, 3, 2, 1, 12)), + asn1Spec=self.s, decodeOpenTypes=True + ) + assert not r + assert s[0] == 1 + assert s[1][0] == 12 + + def testDecodeOpenTypesUnknownId(self): + s, r = decoder.decode( + ints2octs((48, 10, 2, 1, 3, 49, 5, 131, 3, 2, 1, 12)), + asn1Spec=self.s, decodeOpenTypes=True + ) + assert not r + assert s[0] == 3 + assert s[1][0] == univ.OctetString(hexValue='02010C') + + +class SequenceDecoderWithExplicitlyTaggedSetOfOpenTypesTestCase(BaseTestCase): + def setUp(self): + openType = opentype.OpenType( + 'id', + {1: univ.Integer(), + 2: univ.OctetString()} + ) + self.s = univ.Sequence( + componentType=namedtype.NamedTypes( + namedtype.NamedType('id', univ.Integer()), + namedtype.NamedType( + 'blob', univ.SetOf( + componentType=univ.Any().subtype( + explicitTag=tag.Tag( + tag.tagClassContext, tag.tagFormatSimple, 3))), + openType=openType + ) + ) + ) + + def testDecodeOpenTypesChoiceOne(self): + s, r = decoder.decode( + ints2octs((48, 10, 2, 1, 1, 49, 5, 131, 3, 2, 1, 12)), + asn1Spec=self.s, decodeOpenTypes=True + ) + assert not r + assert s[0] == 1 + assert s[1][0] == 12 + + def testDecodeOpenTypesUnknownId(self): + s, r = decoder.decode( + ints2octs( (48, 10, 2, 1, 3, 49, 5, 131, 3, 2, 1, 12)), + asn1Spec=self.s, decodeOpenTypes=True + ) + assert not r + assert s[0] == 3 + assert s[1][0] == univ.OctetString(hexValue='02010C') + + suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__]) if __name__ == '__main__': |