tests: Reproducer for empty AllowedMechanisms issue with SoftHSM

Signed-off-by: Jakub Jelen <[email protected]>

Author: Jakuje

cryptoki/tests/basic.rs

@@ -1084,6 +1084,7 @@ fn import_export() -> TestResult {
         Attribute::Class(ObjectClass::PUBLIC_KEY),
         Attribute::KeyType(KeyType::RSA),
         Attribute::Verify(true),
+        Attribute::AllowedMechanisms(Vec::<MechanismType>::new()),
     ];
 
     {
@@ -1113,6 +1114,16 @@ fn import_export() -> TestResult {
         panic!("Expected the Modulus attribute.");
     }
 
+    let attr = session
+        .get_attributes(is_it_the_public_key, &[AttributeType::AllowedMechanisms])?
+        .remove(0);
+
+    if let Attribute::AllowedMechanisms(v) = attr {
+        assert_eq!(v, Vec::<MechanismType>::new());
+    } else {
+        panic!("Expected the AllowedMechanisms attribute.");
+    }
+
     // delete key
     session.destroy_object(is_it_the_public_key)?;