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Add transaction selector based on min priority fee parameter (#6083)
Signed-off-by: Gabriel-Trintinalia <[email protected]>
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88 changes: 88 additions & 0 deletions
88
...ethereum/blockcreation/txselection/selectors/MinPriorityFeePerGasTransactionSelector.java
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| /* | ||
| * 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.blockcreation.txselection.selectors; | ||
|
|
||
| import org.hyperledger.besu.datatypes.Wei; | ||
| import org.hyperledger.besu.ethereum.blockcreation.txselection.BlockSelectionContext; | ||
| import org.hyperledger.besu.ethereum.blockcreation.txselection.TransactionSelectionResults; | ||
| import org.hyperledger.besu.ethereum.eth.transactions.PendingTransaction; | ||
| import org.hyperledger.besu.ethereum.processing.TransactionProcessingResult; | ||
| import org.hyperledger.besu.plugin.data.TransactionSelectionResult; | ||
|
|
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| /** This class is responsible for selecting transactions based on the minimum priority fee. */ | ||
| public class MinPriorityFeePerGasTransactionSelector extends AbstractTransactionSelector { | ||
|
|
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| /** | ||
| * Constructor for MinPriorityFeeSelector. | ||
| * | ||
| * @param context The context of block selection. | ||
| */ | ||
| public MinPriorityFeePerGasTransactionSelector(final BlockSelectionContext context) { | ||
| super(context); | ||
| } | ||
|
|
||
| /** | ||
| * Evaluates a transaction before processing. | ||
| * | ||
| * @param pendingTransaction The transaction to be evaluated. | ||
| * @param transactionSelectionResults The results of other transaction evaluations in the same | ||
| * block. | ||
| * @return TransactionSelectionResult. If the priority fee is below the minimum, it returns an | ||
| * invalid transient result. Otherwise, it returns a selected result. | ||
| */ | ||
| @Override | ||
| public TransactionSelectionResult evaluateTransactionPreProcessing( | ||
| final PendingTransaction pendingTransaction, | ||
| final TransactionSelectionResults transactionSelectionResults) { | ||
| if (isPriorityFeePriceBelowMinimum(pendingTransaction)) { | ||
| return TransactionSelectionResult.PRIORITY_FEE_PER_GAS_BELOW_CURRENT_MIN; | ||
| } | ||
| return TransactionSelectionResult.SELECTED; | ||
| } | ||
|
|
||
| /** | ||
| * Checks if the priority fee price is below the minimum. | ||
| * | ||
| * @param pendingTransaction The transaction to check. | ||
| * @return boolean. Returns true if the minimum priority fee price is below the minimum, false | ||
| * otherwise. | ||
| */ | ||
| private boolean isPriorityFeePriceBelowMinimum(final PendingTransaction pendingTransaction) { | ||
| // Priority txs are exempt from this check | ||
| if (pendingTransaction.hasPriority()) { | ||
| return false; | ||
| } | ||
| Wei priorityFeePerGas = | ||
| pendingTransaction | ||
| .getTransaction() | ||
| .getEffectivePriorityFeePerGas(context.processableBlockHeader().getBaseFee()); | ||
| return priorityFeePerGas.lessThan(context.miningParameters().getMinPriorityFeePerGas()); | ||
| } | ||
|
|
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| /** | ||
| * No evaluation is performed post-processing. | ||
| * | ||
| * @param pendingTransaction The processed transaction. | ||
| * @param processingResult The result of the transaction processing. | ||
| * @return Always returns SELECTED. | ||
| */ | ||
| @Override | ||
| public TransactionSelectionResult evaluateTransactionPostProcessing( | ||
| final PendingTransaction pendingTransaction, | ||
| final TransactionSelectionResults blockTransactionResults, | ||
| final TransactionProcessingResult processingResult) { | ||
| return TransactionSelectionResult.SELECTED; | ||
| } | ||
| } |
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99 changes: 99 additions & 0 deletions
99
.../hyperledger/besu/ethereum/blockcreation/MinPriorityFeePerGasTransactionSelectorTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| /* | ||
| * 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.blockcreation; | ||
|
|
||
| import static org.assertj.core.api.Assertions.assertThat; | ||
| import static org.mockito.ArgumentMatchers.any; | ||
| import static org.mockito.Mockito.mock; | ||
| import static org.mockito.Mockito.when; | ||
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|
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| import org.hyperledger.besu.datatypes.Wei; | ||
| import org.hyperledger.besu.ethereum.blockcreation.txselection.BlockSelectionContext; | ||
| import org.hyperledger.besu.ethereum.blockcreation.txselection.selectors.AbstractTransactionSelector; | ||
| import org.hyperledger.besu.ethereum.blockcreation.txselection.selectors.MinPriorityFeePerGasTransactionSelector; | ||
| import org.hyperledger.besu.ethereum.core.MiningParameters; | ||
| import org.hyperledger.besu.ethereum.core.ProcessableBlockHeader; | ||
| import org.hyperledger.besu.ethereum.core.Transaction; | ||
| import org.hyperledger.besu.ethereum.eth.transactions.PendingTransaction; | ||
| import org.hyperledger.besu.plugin.data.TransactionSelectionResult; | ||
|
|
||
| import org.junit.jupiter.api.BeforeEach; | ||
| import org.junit.jupiter.api.Test; | ||
|
|
||
| public class MinPriorityFeePerGasTransactionSelectorTest { | ||
| private AbstractTransactionSelector transactionSelector; | ||
|
|
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| private final int minPriorityFeeParameter = 7; | ||
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| @BeforeEach | ||
| public void initialize() { | ||
| MiningParameters miningParameters = | ||
| MiningParameters.newDefault().setMinPriorityFeePerGas(Wei.of(minPriorityFeeParameter)); | ||
| BlockSelectionContext context = | ||
| new BlockSelectionContext( | ||
| miningParameters, | ||
| null, | ||
| null, | ||
| mock(ProcessableBlockHeader.class), | ||
| null, | ||
| null, | ||
| null, | ||
| null); | ||
| transactionSelector = new MinPriorityFeePerGasTransactionSelector(context); | ||
| } | ||
|
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| @Test | ||
| public void shouldNotSelectWhen_PriorityFeePerGas_IsLessThan_MinPriorityFeePerGas() { | ||
| var transaction = mockTransactionWithPriorityFee(minPriorityFeeParameter - 1); | ||
| assertSelectionResult( | ||
| transaction, TransactionSelectionResult.PRIORITY_FEE_PER_GAS_BELOW_CURRENT_MIN); | ||
| } | ||
|
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| @Test | ||
| public void shouldSelectWhen_PriorityFeePerGas_IsEqual_MinPriorityFeePerGas() { | ||
| var transaction = mockTransactionWithPriorityFee(minPriorityFeeParameter); | ||
| assertSelectionResult(transaction, TransactionSelectionResult.SELECTED); | ||
| } | ||
|
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| @Test | ||
| public void shouldSelectWhen_PriorityFeePerGas_IsGreaterThan_MinPriorityFeePerGas() { | ||
| var transaction = mockTransactionWithPriorityFee(minPriorityFeeParameter + 1); | ||
| assertSelectionResult(transaction, TransactionSelectionResult.SELECTED); | ||
| } | ||
|
|
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| @Test | ||
| public void shouldSelectWhenPrioritySender() { | ||
| var prioritySenderTransaction = mockTransactionWithPriorityFee(minPriorityFeeParameter - 1); | ||
| assertSelectionResult( | ||
| prioritySenderTransaction, | ||
| TransactionSelectionResult.PRIORITY_FEE_PER_GAS_BELOW_CURRENT_MIN); | ||
| when(prioritySenderTransaction.hasPriority()).thenReturn(true); | ||
| assertSelectionResult(prioritySenderTransaction, TransactionSelectionResult.SELECTED); | ||
| } | ||
|
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| private void assertSelectionResult( | ||
| final PendingTransaction transaction, final TransactionSelectionResult expectedResult) { | ||
| var actualResult = transactionSelector.evaluateTransactionPreProcessing(transaction, null); | ||
| assertThat(actualResult).isEqualTo(expectedResult); | ||
| } | ||
|
|
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| private PendingTransaction mockTransactionWithPriorityFee(final int priorityFeePerGas) { | ||
| PendingTransaction mockTransaction = mock(PendingTransaction.class); | ||
| Transaction transaction = mock(Transaction.class); | ||
| when(mockTransaction.getTransaction()).thenReturn(transaction); | ||
| when(transaction.getEffectivePriorityFeePerGas(any())).thenReturn(Wei.of(priorityFeePerGas)); | ||
| return mockTransaction; | ||
| } | ||
| } |
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