Skip ML-DSA-65 doctests when backend is not AWS-LC

Signed-off-by: Facundo Tuesca <facundo.tuesca@trailofbits.com>

Author: facutuesca

docs/conf.py

@@ -50,6 +50,11 @@
     "sphinx_inline_tabs",
 ]
 
+doctest_global_setup = """
+from cryptography.hazmat.bindings._rust import openssl as _rust_openssl
+SKIP_MLDSA = not _rust_openssl.CRYPTOGRAPHY_IS_AWSLC
+"""
+
 if spelling is not None:
     extensions.append("sphinxcontrib.spelling")
 

docs/hazmat/primitives/asymmetric/mldsa.rst

@@ -12,6 +12,7 @@ Signing & Verification
 ~~~~~~~~~~~~~~~~~~~~~~~
 
 .. doctest::
+    :skipif: SKIP_MLDSA
 
     >>> from cryptography.hazmat.primitives.asymmetric.mldsa import MlDsa65PrivateKey
     >>> private_key = MlDsa65PrivateKey.generate()
@@ -27,6 +28,7 @@ The context can be up to 255 bytes and is used to differentiate signatures in
 different contexts or protocols.
 
 .. doctest::
+    :skipif: SKIP_MLDSA
 
     >>> from cryptography.hazmat.primitives.asymmetric.mldsa import MlDsa65PrivateKey
     >>> private_key = MlDsa65PrivateKey.generate()
@@ -67,6 +69,7 @@ Key interfaces
             not supported by the backend ``cryptography`` is using.
 
         .. doctest::
+            :skipif: SKIP_MLDSA
 
             >>> from cryptography.hazmat.primitives.asymmetric import mldsa
             >>> private_key = mldsa.MlDsa65PrivateKey.generate()
@@ -155,6 +158,7 @@ Key interfaces
             not supported by the backend ``cryptography`` is using.
 
         .. doctest::
+            :skipif: SKIP_MLDSA
 
             >>> from cryptography.hazmat.primitives import serialization
             >>> from cryptography.hazmat.primitives.asymmetric import mldsa