1 files changed, 6 insertions, 4 deletions
diff --git a/src/test/fuzz/mini_miner.cpp b/src/test/fuzz/mini_miner.cpp
index 51de4d0166..a5bccd103d 100644
--- a/src/test/fuzz/mini_miner.cpp
+++ b/src/test/fuzz/mini_miner.cpp
@@ -34,6 +34,7 @@ void initialize_miner()
 // Test that the MiniMiner can run with various outpoints and feerates.
 FUZZ_TARGET(mini_miner, .init = initialize_miner)
 {
+    SeedRandomStateForTest(SeedRand::ZEROS);
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     bilingual_str error;
     CTxMemPool pool{CTxMemPool::Options{}, error};
@@ -59,7 +60,7 @@ FUZZ_TARGET(mini_miner, .init = initialize_miner)
         TestMemPoolEntryHelper entry;
         const CAmount fee{ConsumeMoney(fuzzed_data_provider, /*max=*/MAX_MONEY/100000)};
         assert(MoneyRange(fee));
-        pool.addUnchecked(entry.Fee(fee).FromTx(tx));
+        AddToMempool(pool, entry.Fee(fee).FromTx(tx));
 
         // All outputs are available to spend
         for (uint32_t n{0}; n < num_outputs; ++n) {
@@ -112,6 +113,7 @@ FUZZ_TARGET(mini_miner, .init = initialize_miner)
 // Test that MiniMiner and BlockAssembler build the same block given the same transactions and constraints.
 FUZZ_TARGET(mini_miner_selection, .init = initialize_miner)
 {
+    SeedRandomStateForTest(SeedRand::ZEROS);
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     bilingual_str error;
     CTxMemPool pool{CTxMemPool::Options{}, error};
@@ -154,7 +156,7 @@ FUZZ_TARGET(mini_miner_selection, .init = initialize_miner)
         TestMemPoolEntryHelper entry;
         const CAmount fee{ConsumeMoney(fuzzed_data_provider, /*max=*/MAX_MONEY/100000)};
         assert(MoneyRange(fee));
-        pool.addUnchecked(entry.Fee(fee).FromTx(tx));
+        AddToMempool(pool, entry.Fee(fee).FromTx(tx));
         transactions.push_back(tx);
     }
     std::vector<COutPoint> outpoints;
@@ -174,15 +176,15 @@ FUZZ_TARGET(mini_miner_selection, .init = initialize_miner)
     miner_options.blockMinFeeRate = target_feerate;
     miner_options.nBlockMaxWeight = DEFAULT_BLOCK_MAX_WEIGHT;
     miner_options.test_block_validity = false;
+    miner_options.coinbase_output_script = CScript() << OP_0;
 
     node::BlockAssembler miner{g_setup->m_node.chainman->ActiveChainstate(), &pool, miner_options};
     node::MiniMiner mini_miner{pool, outpoints};
     assert(mini_miner.IsReadyToCalculate());
 
-    CScript spk_placeholder = CScript() << OP_0;
     // Use BlockAssembler as oracle. BlockAssembler and MiniMiner should select the same
     // transactions, stopping once packages do not meet target_feerate.
-    const auto blocktemplate{miner.CreateNewBlock(spk_placeholder)};
+    const auto blocktemplate{miner.CreateNewBlock()};
     mini_miner.BuildMockTemplate(target_feerate);
     assert(!mini_miner.IsReadyToCalculate());
     auto mock_template_txids = mini_miner.GetMockTemplateTxids();