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bitcoin/src/test/fuzz/util/wallet.h
2025-06-18 11:11:25 -03:00

81 lines
3.2 KiB
C++

// Copyright (c) 2024-present The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_TEST_FUZZ_UTIL_WALLET_H
#define BITCOIN_TEST_FUZZ_UTIL_WALLET_H
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <policy/policy.h>
#include <wallet/coincontrol.h>
#include <wallet/fees.h>
#include <wallet/spend.h>
#include <wallet/test/util.h>
#include <wallet/wallet.h>
namespace wallet {
/**
* Wraps a descriptor wallet for fuzzing.
*/
struct FuzzedWallet {
std::shared_ptr<CWallet> wallet;
FuzzedWallet(interfaces::Chain& chain, const std::string& name, const std::string& seed_insecure)
{
wallet = std::make_shared<CWallet>(&chain, name, CreateMockableWalletDatabase());
{
LOCK(wallet->cs_wallet);
wallet->SetWalletFlag(WALLET_FLAG_DESCRIPTORS);
auto height{*Assert(chain.getHeight())};
wallet->SetLastBlockProcessed(height, chain.getBlockHash(height));
}
wallet->m_keypool_size = 1; // Avoid timeout in TopUp()
assert(wallet->IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS));
ImportDescriptors(seed_insecure);
}
void ImportDescriptors(const std::string& seed_insecure)
{
const std::vector<std::string> DESCS{
"pkh(%s/%s/*)",
"sh(wpkh(%s/%s/*))",
"tr(%s/%s/*)",
"wpkh(%s/%s/*)",
};
for (const std::string& desc_fmt : DESCS) {
for (bool internal : {true, false}) {
const auto descriptor{strprintf(tfm::RuntimeFormat{desc_fmt}, "[5aa9973a/66h/4h/2h]" + seed_insecure, int{internal})};
FlatSigningProvider keys;
std::string error;
auto parsed_desc = std::move(Parse(descriptor, keys, error, /*require_checksum=*/false).at(0));
assert(parsed_desc);
assert(error.empty());
assert(parsed_desc->IsRange());
assert(parsed_desc->IsSingleType());
assert(!keys.keys.empty());
WalletDescriptor w_desc{std::move(parsed_desc), /*creation_time=*/0, /*range_start=*/0, /*range_end=*/1, /*next_index=*/0};
assert(!wallet->GetDescriptorScriptPubKeyMan(w_desc));
LOCK(wallet->cs_wallet);
auto& spk_manager = Assert(wallet->AddWalletDescriptor(w_desc, keys, /*label=*/"", internal))->get();
wallet->AddActiveScriptPubKeyMan(spk_manager.GetID(), *Assert(w_desc.descriptor->GetOutputType()), internal);
}
}
}
CTxDestination GetDestination(FuzzedDataProvider& fuzzed_data_provider)
{
auto type{fuzzed_data_provider.PickValueInArray(OUTPUT_TYPES)};
if (fuzzed_data_provider.ConsumeBool()) {
return *Assert(wallet->GetNewDestination(type, ""));
} else {
return *Assert(wallet->GetNewChangeDestination(type));
}
}
CScript GetScriptPubKey(FuzzedDataProvider& fuzzed_data_provider) { return GetScriptForDestination(GetDestination(fuzzed_data_provider)); }
};
}
#endif // BITCOIN_TEST_FUZZ_UTIL_WALLET_H