fix(derive-alloy): test coverage (#785)

Author: refcell

.github/codecov.yml

@@ -23,6 +23,8 @@ ignore:
   - "**/test_utils*"
   - "**/test_util*"
   - "**/tests*"
+  - "crates/derive-alloy/src/alloy_providers.rs"
+  - "crates/derive-alloy/src/beacon_client.rs"
   - "crates/mpt/src/noop.rs"
 
 # Make comments less noisy

crates/derive-alloy/src/errors.rs

@@ -34,3 +34,27 @@ impl From<AlloyProviderError> for PipelineErrorKind {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_from_alloy_provider_error() {
+        let err: PipelineErrorKind = AlloyProviderError::Rlp(alloy_rlp::Error::Overflow).into();
+        assert!(matches!(err, PipelineErrorKind::Critical(_)));
+
+        let err: PipelineErrorKind =
+            AlloyProviderError::BlockInfo(FromBlockError::InvalidGenesisHash).into();
+        assert!(matches!(err, PipelineErrorKind::Critical(_)));
+
+        let err: PipelineErrorKind = AlloyProviderError::OpBlockConversion(
+            OpBlockConversionError::MissingSystemConfigGenesis,
+        )
+        .into();
+        assert!(matches!(err, PipelineErrorKind::Critical(_)));
+
+        let err: PipelineErrorKind = AlloyProviderError::Rpc(RpcError::NullResp).into();
+        assert!(matches!(err, PipelineErrorKind::Temporary(_)));
+    }
+}