diff --git a/src/test/mempool_tests.cpp b/src/test/mempool_tests.cpp
index 407064253..0264d2945 100644
--- a/src/test/mempool_tests.cpp
+++ b/src/test/mempool_tests.cpp
@@ -587,9 +587,6 @@ inline CTransactionRef make_tx(std::vector<CAmount>&& output_values, std::vector
     return MakeTransactionRef(tx);
 }
 
-#define MK_OUTPUTS(amounts...) std::vector<CAmount>{amounts}
-#define MK_INPUTS(txs...) std::vector<CTransactionRef>{txs}
-#define MK_INPUT_IDX(idxes...) std::vector<uint32_t>{idxes}
 
 BOOST_AUTO_TEST_CASE(MempoolAncestryTests)
 {
@@ -602,7 +599,7 @@ BOOST_AUTO_TEST_CASE(MempoolAncestryTests)
     //
     // [tx1]
     //
-    CTransactionRef tx1 = make_tx(MK_OUTPUTS(10 * COIN));
+    CTransactionRef tx1 = make_tx(/* output_values */ {10 * COIN});
     pool.addUnchecked(tx1->GetHash(), entry.Fee(10000LL).FromTx(tx1));
 
     // Ancestors / descendants should be 1 / 1 (itself / itself)
@@ -614,7 +611,7 @@ BOOST_AUTO_TEST_CASE(MempoolAncestryTests)
     //
     // [tx1].0 <- [tx2]
     //
-    CTransactionRef tx2 = make_tx(MK_OUTPUTS(495 * CENT, 5 * COIN), MK_INPUTS(tx1));
+    CTransactionRef tx2 = make_tx(/* output_values */ {495 * CENT, 5 * COIN}, /* inputs */ {tx1});
     pool.addUnchecked(tx2->GetHash(), entry.Fee(10000LL).FromTx(tx2));
 
     // Ancestors / descendants should be:
@@ -633,7 +630,7 @@ BOOST_AUTO_TEST_CASE(MempoolAncestryTests)
     //
     // [tx1].0 <- [tx2].0 <- [tx3]
     //
-    CTransactionRef tx3 = make_tx(MK_OUTPUTS(290 * CENT, 200 * CENT), MK_INPUTS(tx2));
+    CTransactionRef tx3 = make_tx(/* output_values */ {290 * CENT, 200 * CENT}, /* inputs */ {tx2});
     pool.addUnchecked(tx3->GetHash(), entry.Fee(10000LL).FromTx(tx3));
 
     // Ancestors / descendants should be:
@@ -658,7 +655,7 @@ BOOST_AUTO_TEST_CASE(MempoolAncestryTests)
     //              |
     //              \---1 <- [tx4]
     //
-    CTransactionRef tx4 = make_tx(MK_OUTPUTS(290 * CENT, 250 * CENT), MK_INPUTS(tx2), MK_INPUT_IDX(1));
+    CTransactionRef tx4 = make_tx(/* output_values */ {290 * CENT, 250 * CENT}, /* inputs */ {tx2}, /* input_indices */ {1});
     pool.addUnchecked(tx4->GetHash(), entry.Fee(10000LL).FromTx(tx4));
 
     // Ancestors / descendants should be:
@@ -694,14 +691,14 @@ BOOST_AUTO_TEST_CASE(MempoolAncestryTests)
     CAmount v = 5 * COIN;
     for (uint64_t i = 0; i < 5; i++) {
         CTransactionRef& tyi = *ty[i];
-        tyi = make_tx(MK_OUTPUTS(v), i > 0 ? MK_INPUTS(*ty[i-1]) : std::vector<CTransactionRef>());
+        tyi = make_tx(/* output_values */ {v}, /* inputs */ i > 0 ? std::vector<CTransactionRef>{*ty[i - 1]} : std::vector<CTransactionRef>{});
         v -= 50 * CENT;
         pool.addUnchecked(tyi->GetHash(), entry.Fee(10000LL).FromTx(tyi));
         pool.GetTransactionAncestry(tyi->GetHash(), ancestors, descendants);
         BOOST_CHECK_EQUAL(ancestors, i+1);
         BOOST_CHECK_EQUAL(descendants, i+1);
     }
-    CTransactionRef ty6 = make_tx(MK_OUTPUTS(5 * COIN), MK_INPUTS(tx3, ty5));
+    CTransactionRef ty6 = make_tx(/* output_values */ {5 * COIN}, /* inputs */ {tx3, ty5});
     pool.addUnchecked(ty6->GetHash(), entry.Fee(10000LL).FromTx(ty6));
 
     // Ancestors / descendants should be: