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-rw-r--r--src/Makefile.test.include1
-rw-r--r--src/test/validation_chainstate_tests.cpp76
2 files changed, 77 insertions, 0 deletions
diff --git a/src/Makefile.test.include b/src/Makefile.test.include
index 2480cdadbb..a7a2d74c27 100644
--- a/src/Makefile.test.include
+++ b/src/Makefile.test.include
@@ -256,6 +256,7 @@ BITCOIN_TESTS =\
test/uint256_tests.cpp \
test/util_tests.cpp \
test/validation_block_tests.cpp \
+ test/validation_chainstate_tests.cpp \
test/validation_chainstatemanager_tests.cpp \
test/validation_flush_tests.cpp \
test/validationinterface_tests.cpp \
diff --git a/src/test/validation_chainstate_tests.cpp b/src/test/validation_chainstate_tests.cpp
new file mode 100644
index 0000000000..f531b393b8
--- /dev/null
+++ b/src/test/validation_chainstate_tests.cpp
@@ -0,0 +1,76 @@
+// Copyright (c) 2020 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+//
+#include <random.h>
+#include <uint256.h>
+#include <consensus/validation.h>
+#include <sync.h>
+#include <test/util/setup_common.h>
+#include <validation.h>
+
+#include <vector>
+
+#include <boost/test/unit_test.hpp>
+
+BOOST_FIXTURE_TEST_SUITE(validation_chainstate_tests, TestingSetup)
+
+//! Test resizing coins-related CChainState caches during runtime.
+//!
+BOOST_AUTO_TEST_CASE(validation_chainstate_resize_caches)
+{
+ ChainstateManager manager;
+
+ //! Create and add a Coin with DynamicMemoryUsage of 80 bytes to the given view.
+ auto add_coin = [](CCoinsViewCache& coins_view) -> COutPoint {
+ Coin newcoin;
+ uint256 txid = InsecureRand256();
+ COutPoint outp{txid, 0};
+ newcoin.nHeight = 1;
+ newcoin.out.nValue = InsecureRand32();
+ newcoin.out.scriptPubKey.assign((uint32_t)56, 1);
+ coins_view.AddCoin(outp, std::move(newcoin), false);
+
+ return outp;
+ };
+
+ ENTER_CRITICAL_SECTION(cs_main);
+ CChainState& c1 = manager.InitializeChainstate();
+ LEAVE_CRITICAL_SECTION(cs_main);
+ c1.InitCoinsDB(
+ /* cache_size_bytes */ 1 << 23, /* in_memory */ true, /* should_wipe */ false);
+ WITH_LOCK(::cs_main, c1.InitCoinsCache(1 << 23));
+
+ // Add a coin to the in-memory cache, upsize once, then downsize.
+ {
+ LOCK(::cs_main);
+ auto outpoint = add_coin(c1.CoinsTip());
+
+ // Set a meaningless bestblock value in the coinsview cache - otherwise we won't
+ // flush during ResizecoinsCaches() and will subsequently hit an assertion.
+ c1.CoinsTip().SetBestBlock(InsecureRand256());
+
+ BOOST_CHECK(c1.CoinsTip().HaveCoinInCache(outpoint));
+
+ c1.ResizeCoinsCaches(
+ 1 << 24, // upsizing the coinsview cache
+ 1 << 22 // downsizing the coinsdb cache
+ );
+
+ // View should still have the coin cached, since we haven't destructed the cache on upsize.
+ BOOST_CHECK(c1.CoinsTip().HaveCoinInCache(outpoint));
+
+ c1.ResizeCoinsCaches(
+ 1 << 22, // downsizing the coinsview cache
+ 1 << 23 // upsizing the coinsdb cache
+ );
+
+ // The view cache should be empty since we had to destruct to downsize.
+ BOOST_CHECK(!c1.CoinsTip().HaveCoinInCache(outpoint));
+ }
+
+ // Avoid triggering the address sanitizer.
+ WITH_LOCK(::cs_main, manager.Unload());
+}
+
+BOOST_AUTO_TEST_SUITE_END()