[tor-commits] [stem/master] Add an ExtensionType enum

[atagar@xxxxxxxxxxxxxx]

commit 0a491e031f5ae5a9d0ab939ccff252589596625a
Author: Damian Johnson <atagar@xxxxxxxxxxxxxx>
Date:   Sun Mar 26 17:00:08 2017 +0200

    Add an ExtensionType enum
    
    Enumeration of extension types (presently there's just one) to make
    comparisions nicer...
    
      if extension_type == ExtensionType.HAS_SIGNING_KEY:
        ...
    
    Rather than comparing with '4'.
---
 stem/descriptor/certificate.py      | 11 +++++++++++
 test/unit/descriptor/certificate.py |  4 +++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/stem/descriptor/certificate.py b/stem/descriptor/certificate.py
index aacf67f..e513dac 100644
--- a/stem/descriptor/certificate.py
+++ b/stem/descriptor/certificate.py
@@ -28,6 +28,16 @@ used to validate the key used to sign server descriptors.
   **AUTH**        authentication key signed with ed25519 signing key
   ==============  ===========
 
+.. data::ExtensionType (enum)
+
+  Recognized exception types.
+
+  ====================  ===========
+  ExtensionType         Description
+  ====================  ===========
+  HAS_SIGNING_KEY       includes key used to sign the certificate
+  ====================  ===========
+
 .. data::ExtensionFlag (enum)
 
   Flags that can be assigned to Ed25519 certificate extensions.
@@ -50,6 +60,7 @@ ED25519_HEADER_LENGTH = 40
 ED25519_SIGNATURE_LENGTH = 64
 
 CertType = enum.UppercaseEnum('SIGNING', 'LINK_CERT', 'AUTH')
+ExtensionType = enum.Enum(('HAS_SIGNING_KEY', 4),)
 ExtensionFlag = enum.UppercaseEnum('AFFECTS_VALIDATION', 'UNKNOWN')
 
 
diff --git a/test/unit/descriptor/certificate.py b/test/unit/descriptor/certificate.py
index 5728711..9c1ef10 100644
--- a/test/unit/descriptor/certificate.py
+++ b/test/unit/descriptor/certificate.py
@@ -11,7 +11,7 @@ import stem.descriptor.certificate
 import stem.prereq
 import test.runner
 
-from stem.descriptor.certificate import ED25519_SIGNATURE_LENGTH, CertType, ExtensionFlag, Ed25519Certificate, Ed25519CertificateV1, Ed25519Extension
+from stem.descriptor.certificate import ED25519_SIGNATURE_LENGTH, CertType, ExtensionType, ExtensionFlag, Ed25519Certificate, Ed25519CertificateV1, Ed25519Extension
 
 ED25519_CERT = """
 AQQABhtZAaW2GoBED1IjY3A6f6GNqBEl5A83fD2Za9upGke51JGqAQAgBABnprVR
@@ -58,6 +58,8 @@ class TestEd25519Certificate(unittest.TestCase):
       Ed25519Extension(extension_type = 5, flags = [ExtensionFlag.UNKNOWN], flag_int = 4, data = b''),
     ], cert.extensions)
 
+    self.assertEqual(ExtensionType.HAS_SIGNING_KEY, cert.extensions[0].extension_type)
+
   def test_with_real_cert(self):
     cert = Ed25519Certificate.parse(ED25519_CERT)
 



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