LCOV - code coverage report
Current view: top level - src/test - validation_chainstate_tests.cpp (source / functions) Hit Total Coverage
Test: coverage.lcov Lines: 35 35 100.0 %
Date: 2021-06-29 14:35:33 Functions: 2 2 100.0 %
Legend: Modified by patch:
Lines: hit not hit | Branches: + taken - not taken # not executed

Not modified by patch:
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Branches: 0 0 -

           Branch data     Line data    Source code
#       1                 :            : // Copyright (c) 2020 The Bitcoin Core developers
#       2                 :            : // Distributed under the MIT software license, see the accompanying
#       3                 :            : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
#       4                 :            : //
#       5                 :            : #include <random.h>
#       6                 :            : #include <uint256.h>
#       7                 :            : #include <consensus/validation.h>
#       8                 :            : #include <sync.h>
#       9                 :            : #include <test/util/setup_common.h>
#      10                 :            : #include <validation.h>
#      11                 :            : 
#      12                 :            : #include <vector>
#      13                 :            : 
#      14                 :            : #include <boost/test/unit_test.hpp>
#      15                 :            : 
#      16                 :            : BOOST_FIXTURE_TEST_SUITE(validation_chainstate_tests, TestingSetup)
#      17                 :            : 
#      18                 :            : //! Test resizing coins-related CChainState caches during runtime.
#      19                 :            : //!
#      20                 :            : BOOST_AUTO_TEST_CASE(validation_chainstate_resize_caches)
#      21                 :          1 : {
#      22                 :          1 :     ChainstateManager manager;
#      23                 :          1 :     CTxMemPool mempool;
#      24                 :            : 
#      25                 :            :     //! Create and add a Coin with DynamicMemoryUsage of 80 bytes to the given view.
#      26                 :          1 :     auto add_coin = [](CCoinsViewCache& coins_view) -> COutPoint {
#      27                 :          1 :         Coin newcoin;
#      28                 :          1 :         uint256 txid = InsecureRand256();
#      29                 :          1 :         COutPoint outp{txid, 0};
#      30                 :          1 :         newcoin.nHeight = 1;
#      31                 :          1 :         newcoin.out.nValue = InsecureRand32();
#      32                 :          1 :         newcoin.out.scriptPubKey.assign((uint32_t)56, 1);
#      33                 :          1 :         coins_view.AddCoin(outp, std::move(newcoin), false);
#      34                 :            : 
#      35                 :          1 :         return outp;
#      36                 :          1 :     };
#      37                 :            : 
#      38                 :          1 :     CChainState& c1 = WITH_LOCK(cs_main, return manager.InitializeChainstate(mempool));
#      39                 :          1 :     c1.InitCoinsDB(
#      40                 :          1 :         /* cache_size_bytes */ 1 << 23, /* in_memory */ true, /* should_wipe */ false);
#      41                 :          1 :     WITH_LOCK(::cs_main, c1.InitCoinsCache(1 << 23));
#      42                 :            : 
#      43                 :            :     // Add a coin to the in-memory cache, upsize once, then downsize.
#      44                 :          1 :     {
#      45                 :          1 :         LOCK(::cs_main);
#      46                 :          1 :         auto outpoint = add_coin(c1.CoinsTip());
#      47                 :            : 
#      48                 :            :         // Set a meaningless bestblock value in the coinsview cache - otherwise we won't
#      49                 :            :         // flush during ResizecoinsCaches() and will subsequently hit an assertion.
#      50                 :          1 :         c1.CoinsTip().SetBestBlock(InsecureRand256());
#      51                 :            : 
#      52                 :          1 :         BOOST_CHECK(c1.CoinsTip().HaveCoinInCache(outpoint));
#      53                 :            : 
#      54                 :          1 :         c1.ResizeCoinsCaches(
#      55                 :          1 :             1 << 24,  // upsizing the coinsview cache
#      56                 :          1 :             1 << 22  // downsizing the coinsdb cache
#      57                 :          1 :         );
#      58                 :            : 
#      59                 :            :         // View should still have the coin cached, since we haven't destructed the cache on upsize.
#      60                 :          1 :         BOOST_CHECK(c1.CoinsTip().HaveCoinInCache(outpoint));
#      61                 :            : 
#      62                 :          1 :         c1.ResizeCoinsCaches(
#      63                 :          1 :             1 << 22,  // downsizing the coinsview cache
#      64                 :          1 :             1 << 23  // upsizing the coinsdb cache
#      65                 :          1 :         );
#      66                 :            : 
#      67                 :            :         // The view cache should be empty since we had to destruct to downsize.
#      68                 :          1 :         BOOST_CHECK(!c1.CoinsTip().HaveCoinInCache(outpoint));
#      69                 :          1 :     }
#      70                 :            : 
#      71                 :            :     // Avoid triggering the address sanitizer.
#      72                 :          1 :     WITH_LOCK(::cs_main, manager.Unload());
#      73                 :          1 : }
#      74                 :            : 
#      75                 :            : BOOST_AUTO_TEST_SUITE_END()

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