Remove Leading Zeros from TransactionPendingResult (#3776)

* test + fix

Signed-off-by: Frank Li <b439988l@gmail.com>

* spotless

Signed-off-by: Frank Li <b439988l@gmail.com>

* typo

Signed-off-by: Frank Li <b439988l@gmail.com>

Co-authored-by: Frank Li <b439988l@gmail.com>

ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/results/TransactionPendingResult.java

@@ -84,8 +84,8 @@ public class TransactionPendingResult implements TransactionResult {
     this.from = transaction.getSender().toString();
     this.gas = Quantity.create(transaction.getGasLimit());
     this.maxPriorityFeePerGas =
-        transaction.getMaxPriorityFeePerGas().map(Wei::toHexString).orElse(null);
-    this.maxFeePerGas = transaction.getMaxFeePerGas().map(Wei::toHexString).orElse(null);
+        transaction.getMaxPriorityFeePerGas().map(Wei::toShortHexString).orElse(null);
+    this.maxFeePerGas = transaction.getMaxFeePerGas().map(Wei::toShortHexString).orElse(null);
     this.gasPrice = transaction.getGasPrice().map(Quantity::create).orElse(maxFeePerGas);
     this.hash = transaction.getHash().toString();
     this.input = transaction.getPayload().toString();

ethereum/api/src/test/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/TxPoolBesuPendingTransactionsTest.java

@@ -31,6 +31,7 @@ import org.hyperledger.besu.ethereum.eth.transactions.sorter.GasPricePendingTran
 import java.time.Instant;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Set;
 import java.util.stream.Collectors;
 
@@ -74,6 +75,31 @@ public class TxPoolBesuPendingTransactionsTest {
     assertThat(result.size()).isEqualTo(4);
   }
 
+  @Test
+  public void pendingTransactionsGasPricesDoNotHaveLeadingZeroes() {
+    final JsonRpcRequestContext request =
+        new JsonRpcRequestContext(
+            new JsonRpcRequest(
+                JSON_RPC_VERSION, TXPOOL_PENDING_TRANSACTIONS_METHOD, new Object[] {100}));
+
+    final JsonRpcSuccessResponse actualResponse = (JsonRpcSuccessResponse) method.response(request);
+    final Set<TransactionPendingResult> result =
+        (Set<TransactionPendingResult>) actualResponse.getResult();
+
+    assertThat(result)
+        .extracting(TransactionPendingResult::getGasPrice)
+        .filteredOn(Objects::nonNull)
+        .allSatisfy(p -> assertThat(p).doesNotContain("0x0"));
+    assertThat(result)
+        .extracting(TransactionPendingResult::getMaxFeePerGas)
+        .filteredOn(Objects::nonNull)
+        .allSatisfy(p -> assertThat(p).doesNotContain("0x0"));
+    assertThat(result)
+        .extracting(TransactionPendingResult::getMaxPriorityFeePerGas)
+        .filteredOn(Objects::nonNull)
+        .allSatisfy(p -> assertThat(p).doesNotContain("0x0"));
+  }
+
   @Test
   public void shouldReturnPendingTransactionsWithLimit() {
     final JsonRpcRequestContext request =