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wallet: ensure m_min_change_target always covers change fee

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S3RK
2022-08-15 09:30:31 +02:00
parent dc9d662683
commit c8cf08ea74
4 changed files with 11 additions and 6 deletions
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4
src/wallet/test/fuzz/coinselection.cpp
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@@ -58,6 +58,8 @@ FUZZ_TARGET(coinselection)
coin_params.m_subtract_fee_outputs = subtract_fee_outputs;
coin_params.m_long_term_feerate = long_term_fee_rate;
coin_params.m_effective_feerate = effective_fee_rate;
coin_params.change_output_size = fuzzed_data_provider.ConsumeIntegralInRange<int>(10, 1000);
coin_params.m_change_fee = effective_fee_rate.GetFee(coin_params.change_output_size);
// Create some coins
CAmount total_balance{0};
@@ -85,7 +87,7 @@ FUZZ_TARGET(coinselection)
auto result_srd = SelectCoinsSRD(group_pos, target, fast_random_context);
if (result_srd) result_srd->ComputeAndSetWaste(cost_of_change);
CAmount change_target{GenerateChangeTarget(target, fast_random_context)};
CAmount change_target{GenerateChangeTarget(target, coin_params.m_change_fee, fast_random_context)};
auto result_knapsack = KnapsackSolver(group_all, target, change_target, fast_random_context);
if (result_knapsack) result_knapsack->ComputeAndSetWaste(cost_of_change);