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sicw · Jun 16, 2024 · 497cb7d · 497cb7d
1 parent f21b705
commit 497cb7d
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diff --git a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/chain/ChainHead.java b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/chain/ChainHead.java
@@ -18,6 +18,7 @@
 import org.hyperledger.besu.ethereum.core.BlockHeader;
 import org.hyperledger.besu.ethereum.core.Difficulty;
 
+/** 链头指的是最新生成的Block */
 /** Head of a blockchain. */
 public final class ChainHead {
 

diff --git a/ethereum/core/src/test/java/org/hyperledger/besu/ethereum/chain/DefaultBlockchainTest.java b/ethereum/core/src/test/java/org/hyperledger/besu/ethereum/chain/DefaultBlockchainTest.java
@@ -48,6 +48,7 @@
 
 public class DefaultBlockchainTest {
 
+  // 初始化一个新的chain
   @Test
   public void initializeNew() {
     final BlockDataGenerator gen = new BlockDataGenerator();
@@ -58,12 +59,20 @@ public void initializeNew() {
     final DefaultBlockchain blockchain =
         createMutableBlockchain(kvStore, kvStoreVariables, genesisBlock);
 
+    // 从chain中获取的block与这里的block一致
     assertBlockDataIsStored(blockchain, genesisBlock, Collections.emptyList());
+
+    // header中的hash与block中的hash一致
     assertBlockIsHead(blockchain, genesisBlock);
+
+    // 校验区块难度
     assertTotalDifficultiesAreConsistent(blockchain, genesisBlock);
+
+    // check forks chain
     assertThat(blockchain.getForks()).isEmpty();
   }
 
+  // 初始化一个已有数据的链
   @Test
   public void initializeExisting() {
     final BlockDataGenerator gen = new BlockDataGenerator();