Provide Electra body builder test (Consensys#8402)

* provide electra body builder test

* rebase

ethereum/spec/src/test/java/tech/pegasys/teku/spec/datastructures/blocks/blockbody/common/AbstractBeaconBlockBodyTest.java

@@ -22,7 +22,6 @@
 import java.util.List;
 import java.util.function.Consumer;
 import java.util.stream.Collectors;
-import java.util.stream.Stream;
 import org.apache.tuweni.bytes.Bytes32;
 import org.junit.jupiter.api.Test;
 import tech.pegasys.teku.bls.BLSSignature;
@@ -166,9 +165,7 @@ void equalsReturnsFalseWhenProposerSlashingsAreDifferent() {
   void equalsReturnsFalseWhenAttesterSlashingsAreDifferent() {
     // Create copy of attesterSlashings and change the element to ensure it is different.
     attesterSlashings =
-        Stream.concat(
-                Stream.of(dataStructureUtil.randomAttesterSlashing()), attesterSlashings.stream())
-            .collect(blockBodySchema.getAttesterSlashingsSchema().collector());
+        blockBodySchema.getAttesterSlashingsSchema().of(dataStructureUtil.randomAttesterSlashing());
 
     T testBeaconBlockBody = createBlockBody();
 

ethereum/spec/src/test/java/tech/pegasys/teku/spec/datastructures/blocks/blockbody/versions/electra/BeaconBlockBodyElectraTest.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright Consensys Software Inc., 2022
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+
+package tech.pegasys.teku.spec.datastructures.blocks.blockbody.versions.electra;
+
+import java.util.function.Consumer;
+import org.junit.jupiter.api.BeforeEach;
+import tech.pegasys.teku.infrastructure.ssz.SszList;
+import tech.pegasys.teku.spec.SpecMilestone;
+import tech.pegasys.teku.spec.datastructures.blocks.blockbody.BeaconBlockBodyBuilder;
+import tech.pegasys.teku.spec.datastructures.blocks.blockbody.common.AbstractBeaconBlockBodyTest;
+import tech.pegasys.teku.spec.datastructures.blocks.blockbody.versions.altair.SyncAggregate;
+import tech.pegasys.teku.spec.datastructures.blocks.blockbody.versions.bellatrix.BlindedBeaconBlockBodyBellatrix;
+import tech.pegasys.teku.spec.datastructures.execution.ExecutionPayload;
+import tech.pegasys.teku.spec.datastructures.execution.ExecutionPayloadHeader;
+import tech.pegasys.teku.spec.datastructures.operations.SignedBlsToExecutionChange;
+import tech.pegasys.teku.spec.datastructures.type.SszKZGCommitment;
+
+class BeaconBlockBodyElectraTest extends AbstractBeaconBlockBodyTest<BeaconBlockBodyElectra> {
+
+  protected SyncAggregate syncAggregate;
+  protected ExecutionPayload executionPayload;
+  protected ExecutionPayloadHeader executionPayloadHeader;
+  protected SszList<SignedBlsToExecutionChange> blsToExecutionChanges;
+  protected SszList<SszKZGCommitment> blobKzgCommitments;
+
+  @BeforeEach
+  void setup() {
+    super.setUpBaseClass(
+        SpecMilestone.ELECTRA,
+        () -> {
+          syncAggregate = dataStructureUtil.randomSyncAggregate();
+          executionPayload = dataStructureUtil.randomExecutionPayload();
+          executionPayloadHeader = dataStructureUtil.randomExecutionPayloadHeader();
+          blsToExecutionChanges = dataStructureUtil.randomSignedBlsToExecutionChangesList();
+          blobKzgCommitments = dataStructureUtil.randomBlobKzgCommitments();
+        });
+  }
+
+  @Override
+  protected BeaconBlockBodyElectra createBlockBody(
+      final Consumer<BeaconBlockBodyBuilder> contentProvider) {
+    final BeaconBlockBodyBuilder bodyBuilder = createBeaconBlockBodyBuilder();
+    contentProvider.accept(bodyBuilder);
+    return bodyBuilder.build().toVersionElectra().orElseThrow();
+  }
+
+  @Override
+  protected BlindedBeaconBlockBodyBellatrix createBlindedBlockBody(
+      final Consumer<BeaconBlockBodyBuilder> contentProvider) {
+    final BeaconBlockBodyBuilder bodyBuilder = createBeaconBlockBodyBuilder();
+    contentProvider.accept(bodyBuilder);
+    return bodyBuilder.build().toBlindedVersionElectra().orElseThrow();
+  }
+
+  @Override
+  protected Consumer<BeaconBlockBodyBuilder> createContentProvider(final boolean blinded) {
+    return super.createContentProvider(blinded)
+        .andThen(
+            builder -> {
+              builder
+                  .syncAggregate(syncAggregate)
+                  .blsToExecutionChanges(blsToExecutionChanges)
+                  .blobKzgCommitments(blobKzgCommitments);
+              if (blinded) {
+                builder.executionPayloadHeader(executionPayloadHeader);
+              } else {
+                builder.executionPayload(executionPayload);
+              }
+            });
+  }
+}