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fuzz: allow fake and duplicate inputs in tx_package_eval target

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This commit is contained in:
Greg Sanders 2023-11-08 12:09:15 -05:00
parent a0626ccdad
commit 6a917918b7
1 changed files with 14 additions and 1 deletions
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15
src/test/fuzz/package_eval.cpp
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@ -205,6 +205,18 @@ FUZZ_TARGET(tx_package_eval, .init = initialize_tx_pool)
tx_mut.vin.push_back(in);
}
// Duplicate an input
bool dup_input = fuzzed_data_provider.ConsumeBool();
if (dup_input) {
tx_mut.vin.push_back(tx_mut.vin.back());
}
// Refer to a non-existant input
if (fuzzed_data_provider.ConsumeBool()) {
tx_mut.vin.emplace_back();
}
const auto amount_fee = fuzzed_data_provider.ConsumeIntegralInRange<CAmount>(0, amount_in);
const auto amount_out = (amount_in - amount_fee) / num_out;
for (int i = 0; i < num_out; ++i) {
@ -215,7 +227,8 @@ FUZZ_TARGET(tx_package_eval, .init = initialize_tx_pool)
// Restore previously removed outpoints, except in-package outpoints
if (!last_tx) {
for (const auto& in : tx->vin) {
Assert(outpoints.insert(in.prevout).second);
// It's a fake input, or a new input, or a duplicate
Assert(in == CTxIn() || outpoints.insert(in.prevout).second || dup_input);
}
// Cache the in-package outpoints being made
for (size_t i = 0; i < tx->vout.size(); ++i) {