[tor-commits] [stem/master] Test introduction point creation

[atagar@xxxxxxxxxxxxxx]

commit 1c3f49c8cf18e2b76bb8768437b2e9c1cd79d1a3
Author: Damian Johnson <atagar@xxxxxxxxxxxxxx>
Date:   Fri Nov 8 15:18:07 2019 -0800

    Test introduction point creation
    
    I love that test_encode_decode_descriptor() exercises re-parsing a descriptor
    we create. Adding a more targeted test to do this only for introduction points.
    We can then add companion tests once the InnerLayer and OuterLayer classes have
    creation methods.
---
 stem/descriptor/hidden_service.py         | 12 ++++++++++++
 test/unit/descriptor/hidden_service_v3.py | 16 ++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/stem/descriptor/hidden_service.py b/stem/descriptor/hidden_service.py
index 1c4f0bdf..5fb7a189 100644
--- a/stem/descriptor/hidden_service.py
+++ b/stem/descriptor/hidden_service.py
@@ -379,6 +379,18 @@ class IntroductionPointV3(collections.namedtuple('IntroductionPointV3', ['link_s
 
     return link_specifiers
 
+  def __hash__(self):
+    if not hasattr(self, '_hash'):
+      self._hash = hash(self.encode())
+
+    return self._hash
+
+  def __eq__(self, other):
+    return hash(self) == hash(other) if isinstance(other, IntroductionPointV3) else False
+
+  def __ne__(self, other):
+    return not self == other
+
 
 class AuthorizedClient(collections.namedtuple('AuthorizedClient', ['id', 'iv', 'cookie'])):
   """
diff --git a/test/unit/descriptor/hidden_service_v3.py b/test/unit/descriptor/hidden_service_v3.py
index d7b32485..163ea3db 100644
--- a/test/unit/descriptor/hidden_service_v3.py
+++ b/test/unit/descriptor/hidden_service_v3.py
@@ -269,6 +269,22 @@ class TestHiddenServiceDescriptorV3(unittest.TestCase):
     self.assertRaisesWith(ImportError, 'cryptography module unavailable', intro_point.onion_key)
 
   @test.require.ed25519_support
+  def test_intro_point_creation(self):
+    """
+    Create an introduction point, encode it, then re-parse.
+    """
+
+    intro_point = IntroductionPointV3.create('1.1.1.1', 9001)
+
+    self.assertEqual(1, len(intro_point.link_specifiers))
+    self.assertEqual(stem.client.datatype.LinkByIPv4, type(intro_point.link_specifiers[0]))
+    self.assertEqual('1.1.1.1', intro_point.link_specifiers[0].address)
+    self.assertEqual(9001, intro_point.link_specifiers[0].port)
+
+    reparsed = IntroductionPointV3.parse(intro_point.encode())
+    self.assertEqual(intro_point, reparsed)
+
+  @test.require.ed25519_support
   def test_encode_decode_descriptor(self):
     """
     Encode an HSv3 descriptor and then decode it and make sure you get the intended results.



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