diff --git a/src/test/mempool_tests.cpp b/src/test/mempool_tests.cpp
--- a/src/test/mempool_tests.cpp
+++ b/src/test/mempool_tests.cpp
@@ -1136,4 +1136,50 @@
     BOOST_CHECK_EQUAL(descendants, 4ULL);
 }
 
+BOOST_AUTO_TEST_CASE(MempoolDynamicUsageTests) {
+    CTxMemPool pool;
+    BOOST_CHECK_EQUAL(pool.DynamicMemoryUsage(), 0);
+
+#if !(defined(__x86_64__) and defined(__GLIBCXX__))
+    /*
+     * FIXME make the calculated value architecture independent. This will
+     * ensure there is no behavior difference between the various Bitcoin ABC
+     * versions.
+     * For now skip the following tests if the tests is not built for a 64 bits
+     * target.
+     */
+    return;
+#endif
+
+    const size_t nTxs = 10;
+    std::vector<CTransactionRef> txs(nTxs);
+    txs[0] = make_tx(MK_OUTPUTS(1 * COIN));
+    for (size_t i = 1; i < nTxs; i++) {
+        txs[i] = make_tx(MK_OUTPUTS(1000 * SATOSHI), MK_INPUTS(txs[i - 1]));
+    }
+
+    LOCK2(cs_main, pool.cs);
+    TestMemPoolEntryHelper entry;
+
+    pool.addUnchecked(entry.Fee(1000 * SATOSHI).FromTx(txs[0]));
+    size_t dynamicMemoryUsage = pool.DynamicMemoryUsage();
+    BOOST_CHECK_EQUAL(dynamicMemoryUsage, 736);
+
+    for (size_t i = 1; i < nTxs; i++) {
+        pool.addUnchecked(entry.Fee(1000 * SATOSHI).FromTx(txs[i]));
+        BOOST_CHECK_GT(pool.DynamicMemoryUsage(), dynamicMemoryUsage);
+        dynamicMemoryUsage = pool.DynamicMemoryUsage();
+    }
+
+    BOOST_CHECK_EQUAL(dynamicMemoryUsage, 9968);
+
+    for (size_t i = nTxs - 1; i > 1; i--) {
+        pool.removeRecursive(*txs[i]);
+        BOOST_CHECK_LT(pool.DynamicMemoryUsage(), dynamicMemoryUsage);
+        dynamicMemoryUsage = pool.DynamicMemoryUsage();
+    }
+
+    BOOST_CHECK_EQUAL(dynamicMemoryUsage, 1776);
+}
+
 BOOST_AUTO_TEST_SUITE_END()