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713314abfa
Previously, the {Basic,}TestingSetup for fuzzers were set up in many ways:
1. Calling InitializeFuzzingContext, which implicitly constructs a static
const BasicTestingSetup
2. Directly constructing a static const BasicTestingSetup in the initialize_*
function
3. Directly constructing a static TestingSetup and reproducing the
initialization arguments (I'm assuming because
InitializeFuzzingContext only initializes a BasicTestingSetup)
The new, relatively-simple MakeFuzzingContext function allows us to
consolidate these methods of initialization by being flexible enough to
be used in all situations. It:
1. Is templated so that we can choose to initialize any of
the *TestingSetup classes
2. Has sane defaults which are often used in fuzzers but are also
easily overridable
3. Returns a unique_ptr, explicitly transferring ownership to the caller
to deal with according to its situation
76 lines
3.6 KiB
C++
76 lines
3.6 KiB
C++
// Copyright (c) 2020 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <policy/fees.h>
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#include <primitives/transaction.h>
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#include <test/fuzz/FuzzedDataProvider.h>
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#include <test/fuzz/fuzz.h>
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#include <test/fuzz/util.h>
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#include <txmempool.h>
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#include <cstdint>
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#include <optional>
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#include <string>
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#include <vector>
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void initialize_policy_estimator()
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{
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static const auto testing_setup = MakeFuzzingContext<>();
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}
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FUZZ_TARGET_INIT(policy_estimator, initialize_policy_estimator)
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{
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FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
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CBlockPolicyEstimator block_policy_estimator;
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while (fuzzed_data_provider.ConsumeBool()) {
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CallOneOf(
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fuzzed_data_provider,
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[&] {
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const std::optional<CMutableTransaction> mtx = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
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if (!mtx) {
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return;
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}
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const CTransaction tx{*mtx};
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block_policy_estimator.processTransaction(ConsumeTxMemPoolEntry(fuzzed_data_provider, tx), fuzzed_data_provider.ConsumeBool());
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if (fuzzed_data_provider.ConsumeBool()) {
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(void)block_policy_estimator.removeTx(tx.GetHash(), /* inBlock */ fuzzed_data_provider.ConsumeBool());
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}
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},
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[&] {
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std::vector<CTxMemPoolEntry> mempool_entries;
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while (fuzzed_data_provider.ConsumeBool()) {
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const std::optional<CMutableTransaction> mtx = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
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if (!mtx) {
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break;
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}
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const CTransaction tx{*mtx};
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mempool_entries.push_back(ConsumeTxMemPoolEntry(fuzzed_data_provider, tx));
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}
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std::vector<const CTxMemPoolEntry*> ptrs;
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ptrs.reserve(mempool_entries.size());
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for (const CTxMemPoolEntry& mempool_entry : mempool_entries) {
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ptrs.push_back(&mempool_entry);
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}
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block_policy_estimator.processBlock(fuzzed_data_provider.ConsumeIntegral<unsigned int>(), ptrs);
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},
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[&] {
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(void)block_policy_estimator.removeTx(ConsumeUInt256(fuzzed_data_provider), /* inBlock */ fuzzed_data_provider.ConsumeBool());
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},
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[&] {
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block_policy_estimator.FlushUnconfirmed();
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});
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(void)block_policy_estimator.estimateFee(fuzzed_data_provider.ConsumeIntegral<int>());
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EstimationResult result;
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(void)block_policy_estimator.estimateRawFee(fuzzed_data_provider.ConsumeIntegral<int>(), fuzzed_data_provider.ConsumeFloatingPoint<double>(), fuzzed_data_provider.PickValueInArray(ALL_FEE_ESTIMATE_HORIZONS), fuzzed_data_provider.ConsumeBool() ? &result : nullptr);
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FeeCalculation fee_calculation;
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(void)block_policy_estimator.estimateSmartFee(fuzzed_data_provider.ConsumeIntegral<int>(), fuzzed_data_provider.ConsumeBool() ? &fee_calculation : nullptr, fuzzed_data_provider.ConsumeBool());
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(void)block_policy_estimator.HighestTargetTracked(fuzzed_data_provider.PickValueInArray(ALL_FEE_ESTIMATE_HORIZONS));
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}
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{
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FuzzedAutoFileProvider fuzzed_auto_file_provider = ConsumeAutoFile(fuzzed_data_provider);
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CAutoFile fuzzed_auto_file = fuzzed_auto_file_provider.open();
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block_policy_estimator.Write(fuzzed_auto_file);
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block_policy_estimator.Read(fuzzed_auto_file);
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}
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}
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