Fix didpeer test, fix did:peer:2 regex validation

Signed-off-by: Patrik Stas <patrik.stas@absa.africa>

did_core/did_methods/did_peer/src/peer_did/numalgos/numalgo2/encoding.rs

@@ -197,7 +197,7 @@ mod tests {
             .routing_keys(vec![ServiceKeyKind::Reference(
                 "did:example:somemediator#somekey".parse().unwrap(),
             )])
-            .accept(vec!["didcomm/aip2;env=rfc587".into()])
+            .accept(vec!["didcomm/v2".into(), "didcomm/aip2;env=rfc587".into()])
             .build();
 
         let service = Service::new(
@@ -214,17 +214,14 @@ mod tests {
         let did = append_encoded_service_segment(did.to_string(), &did_document).unwrap();
 
         let did_parsed = PeerDid::<Numalgo2>::parse(did.clone()).unwrap();
-        let DidResolutionOutput { did_document, .. } =
-            PeerDidResolver::resolve_peerdid2(&did_parsed, PublicKeyEncoding::Base58)
-                .await
-                .unwrap();
+        let ddo = did_parsed.to_did_doc(PublicKeyEncoding::Base58).unwrap();
 
         let did_expected_parsed = PeerDid::<Numalgo2>::parse(did_expected.clone()).unwrap();
         let ddo_expected = did_expected_parsed
             .to_did_doc(PublicKeyEncoding::Base58)
             .unwrap();
 
-        assert_eq!(did_document, ddo_expected);
+        assert_eq!(ddo, ddo_expected);
         assert_eq!(did, did_expected);
     }
 

did_core/did_methods/did_peer/src/peer_did/validate.rs

@@ -6,7 +6,7 @@ use crate::error::DidPeerError;
 
 static GROUP_NUMALGO_0_AND_1: &str = r"([01](z)([1-9a-km-zA-HJ-NP-Z]{5,200}))";
 static GROUP_NUMALGO_2: &str =
-    r"(2((.[AEVID](z)([1-9a-km-zA-HJ-NP-Z]{5,200}))+(.(S)[0-9a-zA-Z=]*)?))";
+    r"(2((.[AEVID](z)([1-9a-km-zA-HJ-NP-Z]{5,200}))?(.(S)[0-9a-zA-Z=]*)?))";
 static GROUP_NUMALGO_3: &str = r"(3\.[0-9a-fA-F]{64})";
 
 pub static PEER_DID_REGEX: Lazy<Regex> = Lazy::new(|| {