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-rw-r--r--src/test/mempool_tests.cpp37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/test/mempool_tests.cpp b/src/test/mempool_tests.cpp
index fe5d31b7d3..6d2f5474ff 100644
--- a/src/test/mempool_tests.cpp
+++ b/src/test/mempool_tests.cpp
@@ -749,6 +749,43 @@ BOOST_AUTO_TEST_CASE(MempoolAncestryTests)
pool.GetTransactionAncestry(ty6->GetHash(), ancestors, descendants);
BOOST_CHECK_EQUAL(ancestors, 9ULL);
BOOST_CHECK_EQUAL(descendants, 6ULL);
+
+ /* Ancestors represented more than once ("diamond") */
+ //
+ // [ta].0 <- [tb].0 -----<------- [td].0
+ // | |
+ // \---1 <- [tc].0 --<--/
+ //
+ CTransactionRef ta, tb, tc, td;
+ ta = make_tx(/* output_values */ {10 * COIN});
+ tb = make_tx(/* output_values */ {5 * COIN, 3 * COIN}, /* inputs */ {ta});
+ tc = make_tx(/* output_values */ {2 * COIN}, /* inputs */ {tb}, /* input_indices */ {1});
+ td = make_tx(/* output_values */ {6 * COIN}, /* inputs */ {tb, tc}, /* input_indices */ {0, 0});
+ pool.clear();
+ pool.addUnchecked(entry.Fee(10000LL).FromTx(ta));
+ pool.addUnchecked(entry.Fee(10000LL).FromTx(tb));
+ pool.addUnchecked(entry.Fee(10000LL).FromTx(tc));
+ pool.addUnchecked(entry.Fee(10000LL).FromTx(td));
+
+ // Ancestors / descendants should be:
+ // transaction ancestors descendants
+ // ============ =================== ===========
+ // ta 1 (ta 4 (ta,tb,tc,td)
+ // tb 2 (ta,tb) 4 (ta,tb,tc,td)
+ // tc 3 (ta,tb,tc) 4 (ta,tb,tc,td)
+ // td 4 (ta,tb,tc,td) 4 (ta,tb,tc,td)
+ pool.GetTransactionAncestry(ta->GetHash(), ancestors, descendants);
+ BOOST_CHECK_EQUAL(ancestors, 1ULL);
+ BOOST_CHECK_EQUAL(descendants, 4ULL);
+ pool.GetTransactionAncestry(tb->GetHash(), ancestors, descendants);
+ BOOST_CHECK_EQUAL(ancestors, 2ULL);
+ BOOST_CHECK_EQUAL(descendants, 4ULL);
+ pool.GetTransactionAncestry(tc->GetHash(), ancestors, descendants);
+ BOOST_CHECK_EQUAL(ancestors, 3ULL);
+ BOOST_CHECK_EQUAL(descendants, 4ULL);
+ pool.GetTransactionAncestry(td->GetHash(), ancestors, descendants);
+ BOOST_CHECK_EQUAL(ancestors, 4ULL);
+ BOOST_CHECK_EQUAL(descendants, 4ULL);
}
BOOST_AUTO_TEST_SUITE_END()