support indexing in CDP
diff --git a/tests/test_x509_ext.py b/tests/test_x509_ext.py
index cfca579..7e46e5a 100644
--- a/tests/test_x509_ext.py
+++ b/tests/test_x509_ext.py
@@ -2938,6 +2938,32 @@
assert cdp != cdp4
assert cdp != object()
+ def test_indexing(self):
+ ci = x509.CRLDistributionPoints([
+ x509.DistributionPoint(
+ None, None, None,
+ [x509.UniformResourceIdentifier(u"uri://thing")],
+ ),
+ x509.DistributionPoint(
+ None, None, None,
+ [x509.UniformResourceIdentifier(u"uri://thing2")],
+ ),
+ x509.DistributionPoint(
+ None, None, None,
+ [x509.UniformResourceIdentifier(u"uri://thing3")],
+ ),
+ x509.DistributionPoint(
+ None, None, None,
+ [x509.UniformResourceIdentifier(u"uri://thing4")],
+ ),
+ x509.DistributionPoint(
+ None, None, None,
+ [x509.UniformResourceIdentifier(u"uri://thing5")],
+ ),
+ ])
+ assert ci[-1] == ci[4]
+ assert ci[2:6:2] == [ci[2], ci[4]]
+
@pytest.mark.requires_backend_interface(interface=RSABackend)
@pytest.mark.requires_backend_interface(interface=X509Backend)