Merge pull request #115 from Pier-Two/fix-discovery

Fix discovery

Author: uink45

src/Lantern.Discv5.Enr/EnrBuilder.cs

@@ -4,9 +4,9 @@ namespace Lantern.Discv5.Enr;
 
 public class EnrBuilder
 {
-    private readonly Dictionary<string, IEntry> _entries = new();
-    private IIdentityVerifier _verifier;
-    private IIdentitySigner _signer;
+    private readonly Dictionary<string, IEntry> _entries = [];
+    private IIdentityVerifier? _verifier;
+    private IIdentitySigner? _signer;
 
     public EnrBuilder WithIdentityScheme(IIdentityVerifier verifier, IIdentitySigner signer)
     {
@@ -25,9 +25,9 @@ public EnrBuilder WithEntry(string key, IEntry? entry)
 
     public Enr Build()
     {
-        if (_signer == null)
+        if (_verifier == null)
         {
-            throw new InvalidOperationException("Signer must be set before building the EnrRecord.");
+            throw new InvalidOperationException("Verifier must be set before building the EnrRecord.");
         }
 
         var enrRecord = new Enr(_entries, _verifier, _signer);
@@ -36,4 +36,4 @@ public Enr Build()
 
         return enrRecord;
     }
-}
+}

src/Lantern.Discv5.Enr/EnrFactory.cs

@@ -26,8 +26,6 @@ public Enr CreateFromBytes(byte[] bytes, IIdentityVerifier verifier)
 
     public Enr[] CreateFromMultipleEnrList(ReadOnlySpan<Rlp.Rlp> enrs, IIdentityVerifier verifier)
     {
-        if (enrs == null) throw new ArgumentNullException(nameof(enrs));
-
         Enr[] result = new Enr[enrs.Length];
 
         for (int i = 0; i < enrs.Length; i++)
@@ -59,4 +57,4 @@ public Enr CreateFromRlp(Rlp.Rlp enrRlp, IIdentityVerifier verifier)
 
         return enrRecord;
     }
-}
+}