1 files changed, 95 insertions, 0 deletions
diff --git a/tests/test_rfc6010.py b/tests/test_rfc6010.py
new file mode 100644
index 0000000..072c1ac
--- /dev/null
+++ b/tests/test_rfc6010.py
@@ -0,0 +1,95 @@
+#
+# This file is part of pyasn1-modules software.
+#
+# Created by Russ Housley
+# Copyright (c) 2019, Vigil Security, LLC
+# License: http://snmplabs.com/pyasn1/license.html
+#
+
+import sys
+
+from pyasn1.codec.der.decoder import decode as der_decode
+from pyasn1.codec.der.encoder import encode as der_encode
+
+from pyasn1_modules import pem
+from pyasn1_modules import rfc5280
+from pyasn1_modules import rfc6010
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class UnconstrainedCCCExtensionTestCase(unittest.TestCase):
+    unconstrained_pem_text = "MB0GCCsGAQUFBwESBBEwDzANBgsqhkiG9w0BCRABAA=="
+
+    def setUp(self):
+        self.asn1Spec = rfc5280.Extension()
+
+    def testDerCodec(self):
+        substrate = pem.readBase64fromText(self.unconstrained_pem_text)
+        asn1Object, rest = der_decode(substrate, asn1Spec=self.asn1Spec)
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encode(asn1Object) == substrate
+
+        assert asn1Object['extnID'] == rfc6010.id_pe_cmsContentConstraints
+        evalue, rest = der_decode(asn1Object['extnValue'],
+            asn1Spec=rfc6010.CMSContentConstraints())
+        assert not rest
+        assert evalue.prettyPrint()
+        assert der_encode(evalue) == asn1Object['extnValue']
+
+        assert evalue[0]['contentType'] == rfc6010.id_ct_anyContentType
+
+
+class ConstrainedCCCExtensionTestCase(unittest.TestCase):
+    constrained_pem_text = """\
+MIG7BggrBgEFBQcBEgSBrjCBqzA0BgsqhkiG9w0BCRABEDAlMCMGCyqGSIb3DQEJ
+EAwBMRQMElZpZ2lsIFNlY3VyaXR5IExMQzAwBgpghkgBZQIBAk4CMCIwIAYLKoZI
+hvcNAQkQDAsxEQwPa3RhLmV4YW1wbGUuY29tMDEGCyqGSIb3DQEJEAEZMCIwIAYL
+KoZIhvcNAQkQDAsxEQwPa3RhLmV4YW1wbGUuY29tMA4GCSqGSIb3DQEHAQoBAQ==
+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc5280.Extension()
+
+    def testDerCodec(self):
+        substrate = pem.readBase64fromText(self.constrained_pem_text)
+        asn1Object, rest = der_decode(substrate, asn1Spec=self.asn1Spec)
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encode(asn1Object) == substrate
+
+        assert asn1Object['extnID'] == rfc6010.id_pe_cmsContentConstraints
+        evalue, rest = der_decode(asn1Object['extnValue'],
+            asn1Spec=rfc6010.CMSContentConstraints())
+        assert not rest
+        assert evalue.prettyPrint()
+        assert der_encode(evalue) == asn1Object['extnValue']
+
+        constraint_count = 0
+        attribute_count = 0
+        cannot_count = 0
+        for ccc in evalue:
+            constraint_count += 1
+            if ccc['canSource'] == 1:
+                cannot_count += 1
+            if ccc['attrConstraints'].hasValue():
+                for attr in ccc['attrConstraints']:
+                    attribute_count += 1
+        assert constraint_count == 4
+        assert attribute_count == 3
+        assert cannot_count == 1
+
+    def testExtensionsMap(self):
+        substrate = pem.readBase64fromText(self.constrained_pem_text)
+        asn1Object, rest = der_decode(substrate, asn1Spec=self.asn1Spec)
+        assert asn1Object['extnID'] in rfc5280.certificateExtensionsMap.keys()
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+
+if __name__ == '__main__':
+    unittest.TextTestRunner(verbosity=2).run(suite)