fix stateroot during leaf update

Signed-off-by: Karim Taam <[email protected]>

src/main/java/org/hyperledger/besu/ethereum/trie/verkle/node/InternalNode.java

@@ -160,8 +160,10 @@ private List<Bytes> getStemExtensions() {
     int depth = location.size();
     List<Bytes> extensions = new ArrayList<>();
     for (Node<V> childNode : getChildren()) {
-      if (childNode instanceof StemNode) {
+      if (childNode instanceof StemNode<V>) {
         extensions.add(((StemNode<V>) childNode).getStem().slice(depth));
+      } else if (childNode instanceof StoredStemNode<V>) {
+        extensions.add(((StoredStemNode<V>) childNode).getStem().slice(depth));
       }
     }
     return extensions;

src/main/java/org/hyperledger/besu/ethereum/trie/verkle/node/StoredStemNode.java

@@ -74,6 +74,10 @@ public Node<V> accept(NodeVisitor<V> visitor) {
     return node.accept(visitor);
   }
 
+  public Bytes getStem() {
+    return stem;
+  }
+
   /**
    * Get a string representation of the node.
    *

src/main/java/org/hyperledger/besu/ethereum/trie/verkle/visitor/PutVisitor.java

@@ -141,11 +141,9 @@ public Node<V> visit(final StemNode<V> stemNode, final Bytes path) {
   public Node<V> visit(final LeafNode<V> leafNode, final Bytes path) {
     assert path.size() < 33;
     LeafNode<V> newNode;
-    oldValue = leafNode.getValue();
-    if (oldValue != value) {
-      newNode =
-          new LeafNode<>(
-              leafNode.getLocation(), value, leafNode.isPersisted() ? oldValue : Optional.empty());
+    oldValue = leafNode.isPersisted() ? leafNode.getValue() : leafNode.getPrevious();
+    if (leafNode.getValue() != value) {
+      newNode = new LeafNode<>(leafNode.getLocation(), value, oldValue);
       batchProcessor.ifPresent(
           processor -> processor.addNodeToBatch(newNode.getLocation(), newNode));
       newNode.markDirty();

src/test/java/org/hyperledger/besu/ethereum/trie/verkle/ReloadTrieTest.java

@@ -0,0 +1,118 @@
+/*
+ * Copyright Hyperledger Besu Contributors
+ *
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ */
+package org.hyperledger.besu.ethereum.trie.verkle;
+
+import org.hyperledger.besu.ethereum.trie.verkle.factory.StoredNodeFactory;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.stream.Stream;
+
+import org.apache.commons.csv.CSVFormat;
+import org.apache.commons.csv.CSVParser;
+import org.apache.commons.csv.CSVRecord;
+import org.apache.tuweni.bytes.Bytes;
+import org.apache.tuweni.bytes.Bytes32;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+public class ReloadTrieTest {
+
+  private static VerkleTrieBatchHasher batchProcessor;
+  private static StoredNodeFactory<Bytes> nodeFactory;
+  private static NodeUpdaterMock nodeUpdater;
+
+  private static Stream<Arguments> provideGenesisAndStateRootExpected() {
+    return Stream.of(
+        Arguments.of(
+            createDataMap(
+                "/gen-devnet-7.csv",
+                "0x514a0e5715b0b6c635ac140a5f25b8665af36cf31836344d27d9645fc57eab76")),
+        Arguments.of(
+            createDataMap(
+                "/devnet-7-block-1.csv",
+                "0x5ac6bdb5f3dc47cfa7665c981f795a1116459dfeecde174433d14d710c433cc4")),
+        Arguments.of(
+            createDataMap(
+                "/devnet-7-block-2.csv",
+                "0x2a63a94a9cb5dc948f98bd9a18cd4db0214adbc7cef2297a5f84362b14cb6513")),
+        Arguments.of(
+            createDataMap(
+                "/devnet-7-block-3.csv",
+                "0x4818200283aff9e7fd8a788c28bd6e54a6545a6f3af9e8d75a784c43a4b75fbe")),
+        Arguments.of(
+            createDataMap(
+                "/devnet-7-block-4.csv",
+                "0x25d529a8a345af4db9e0987fbaea65a17632835180e3a1fb8eeed93743996dc9")),
+        Arguments.of(
+            createDataMap(
+                "/devnet-7-block-5.csv",
+                "0x19eefd036a31289e338bec949d777ad56c6e7e12e769399a1b1322e601f282cf")),
+        Arguments.of(
+            createDataMap(
+                "/devnet-7-block-6.csv",
+                "0x0338f6cf3d3087bd33b1d47960f39c2a75a5bc060cf56fcb31ab6f0203bd6866")),
+        Arguments.of(
+            createDataMap(
+                "/devnet-7-block-7.csv",
+                "0x3a897a8bbc000434f83a9a53e80916fb75bc232497284ccdc3e5c9643f9fc7fc")));
+  }
+
+  private static Map<String, String> createDataMap(String filePath, String expectedRoot) {
+    Map<String, String> data = new HashMap<>();
+    data.put("filePath", filePath);
+    data.put("expectedRoot", expectedRoot);
+    return data;
+  }
+
+  @BeforeAll
+  public static void setUp() {
+    nodeUpdater = new NodeUpdaterMock();
+    final NodeLoaderMock nodeLoader = new NodeLoaderMock(nodeUpdater.storage);
+    batchProcessor = new VerkleTrieBatchHasher();
+    nodeFactory = new StoredNodeFactory<>(nodeLoader, value -> value);
+  }
+
+  @ParameterizedTest
+  @MethodSource("provideGenesisAndStateRootExpected")
+  public void reloadTrieTest(final Map<String, String> data) throws IOException {
+    final String genesisCSVFile = data.get("filePath");
+    final String expectedRoot = data.get("expectedRoot");
+
+    StoredBatchedVerkleTrie<Bytes32, Bytes> trie =
+        new StoredBatchedVerkleTrie<>(batchProcessor, nodeFactory);
+    InputStream input = ReloadTrieTest.class.getResourceAsStream(genesisCSVFile);
+    try (Reader reader = new InputStreamReader(input, "UTF-8");
+        CSVParser csvParser = new CSVParser(reader, CSVFormat.DEFAULT); ) {
+      for (CSVRecord csvRecord : csvParser) {
+        Bytes32 key = Bytes32.fromHexString(csvRecord.get(0));
+        Bytes value = Bytes.fromHexString(csvRecord.get(1));
+        trie.put(key, value);
+      }
+    }
+    trie.commit(nodeUpdater);
+
+    Assertions.assertThat(trie.getRootHash())
+        .isEqualByComparingTo(Bytes32.fromHexString(expectedRoot));
+  }
+}

src/test/resources/devnet-7-block-1.csv

@@ -0,0 +1,3 @@
+0x5b5fdfedd6a0e932da408ac7d772a36513d1eee9b9926e52620c43a433aad700,0x0000000000000000000000000000000000000000000000000000000000000000
+0x5b5fdfedd6a0e932da408ac7d772a36513d1eee9b9926e52620c43a433aad701,0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470
+0x5b5fdfedd6a0e932da408ac7d772a36513d1eee9b9926e52620c43a433aad740,0xd3223e707747b853db863c5020016d2bbad1896abb16fadb522eee3ef6f8a0af

src/test/resources/devnet-7-block-2.csv

@@ -0,0 +1 @@
+0x5b5fdfedd6a0e932da408ac7d772a36513d1eee9b9926e52620c43a433aad741,0xb675fdc29884458a36f2e4df2439d6076a1d963169a1c6a261958bc8064141d6

src/test/resources/devnet-7-block-3.csv

@@ -0,0 +1,8 @@
+0x242271cf1aaa13ede9bb0a1550d6f181c6135afb92be8270221f03cc8a721e00,0x00000000000000000000000000000000000000000000000000b5303ad38b8000
+0x242271cf1aaa13ede9bb0a1550d6f181c6135afb92be8270221f03cc8a721e01,0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470
+0x5b5fdfedd6a0e932da408ac7d772a36513d1eee9b9926e52620c43a433aad742,0xb4bebc9af4e95d4d5cdc052efe78bca155e1f23c18cb89754fba998da964850d
+0x96ed99018bcdb2439b664559f70a95ec161cfc6ef2b8e1b42ff61733e87f8e00,0x000000000000000000000000000000000000000000000000000032ceaf08eed0
+0x96ed99018bcdb2439b664559f70a95ec161cfc6ef2b8e1b42ff61733e87f8e01,0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470
+0xd5f60a22f578b01222216496e3322676c2bd1a27f4814fff924ff5795b9dae00,0x0000000000000000000000000000000200000000033b2e3c9e65d3617abfc000
+0xdf67dea9181141d6255ac05c7ada5a590fb30a375023f16c31223f067319e300,0x00000000000000000000000000000000000000000000000000b5303ad38b8000
+0xdf67dea9181141d6255ac05c7ada5a590fb30a375023f16c31223f067319e301,0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470

src/test/resources/devnet-7-block-4.csv

@@ -0,0 +1,28 @@
+0xd57b8a69aeb2f9a903ddcfd9369ba0f915d320b7d57a6f2e859353928493b101,0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470
+0xd57b8a69aeb2f9a903ddcfd9369ba0f915d320b7d57a6f2e859353928493b100,0x0000000000000000000000000000000100000000000000000000000000000000
+0x96ed99018bcdb2439b664559f70a95ec161cfc6ef2b8e1b42ff61733e87f8e00,0x0000000000000000000000000000000000000000000000000014680f9d8d592c
+0x242271cf1aaa13ede9bb0a1550d6f181c6135afb92be8270221f03cc8a721e00,0x00000000000000000000000000000032000000000000000000a4fda9d59e70d5
+0xdf67dea9181141d6255ac05c7ada5a590fb30a375023f16c31223f067319e300,0x00000000000000000000000000000032000000000000000000a5ecf2b4eceac9
+0xc0237e3ff2222174a4406e598b9083eca7ac5394cfce7794dea7339c444f8b01,0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470
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src/test/resources/devnet-7-block-5.csv

@@ -0,0 +1 @@
+0x5b5fdfedd6a0e932da408ac7d772a36513d1eee9b9926e52620c43a433aad744,0xd22dde2b2e4198afd930db12a9affe5d0b4f887e912c3264db2629bc15c5c653

src/test/resources/devnet-7-block-6.csv

@@ -0,0 +1,5 @@
+0x242271cf1aaa13ede9bb0a1550d6f181c6135afb92be8270221f03cc8a721e00,0x000000000000000000000000000000320000000000000000015a2de4a929f0d5
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+0x96ed99018bcdb2439b664559f70a95ec161cfc6ef2b8e1b42ff61733e87f8e00,0x000000000000000000000000000000000000000000000000001490dc53a1b90c
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src/test/resources/devnet-7-block-7.csv

@@ -0,0 +1,42 @@
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