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       1                 :             : // Copyright (c) The Bitcoin Core developers
       2                 :             : // Distributed under the MIT software license, see the accompanying
       3                 :             : // file COPYING or https://opensource.org/license/mit.
       4                 :             : 
       5                 :             : #include <node/caches.h>
       6                 :             : #include <util/byte_units.h>
       7                 :             : 
       8                 :             : #include <boost/test/unit_test.hpp>
       9                 :             : 
      10                 :             : using namespace node;
      11                 :             : 
      12                 :             : BOOST_AUTO_TEST_SUITE(caches_tests)
      13                 :             : 
      14   [ +  -  +  -  :           7 : BOOST_AUTO_TEST_CASE(oversized_dbcache_warning)
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                      - ]
      15                 :             : {
      16                 :             :     // memory restricted setup - cap is DEFAULT_DB_CACHE (450 MiB)
      17         [ +  - ]:           2 :     BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/4_MiB, /*total_ram=*/1024_MiB));    // Under cap
      18         [ +  - ]:           2 :     BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/512_MiB, /*total_ram=*/1024_MiB));  // At cap
      19         [ +  - ]:           2 :     BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/1500_MiB, /*total_ram=*/1024_MiB)); // Over cap
      20                 :             : 
      21                 :             :     // 2 GiB RAM - cap is 75%
      22         [ +  - ]:           2 :     BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/1500_MiB, /*total_ram=*/2048_MiB)); // Under cap
      23         [ +  - ]:           2 :     BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/1600_MiB, /*total_ram=*/2048_MiB)); // Over cap
      24                 :             : 
      25                 :           1 :     if constexpr (SIZE_MAX == UINT64_MAX) {
      26                 :             :         // 4 GiB RAM - cap is 75%
      27         [ +  - ]:           2 :         BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/2500_MiB, /*total_ram=*/4096_MiB)); // Under cap
      28         [ +  - ]:           2 :         BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/3500_MiB, /*total_ram=*/4096_MiB)); // Over cap
      29                 :             : 
      30                 :             :         // 8 GiB RAM - cap is 75%
      31         [ +  - ]:           2 :         BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/6000_MiB, /*total_ram=*/8192_MiB)); // Under cap
      32         [ +  - ]:           2 :         BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/7000_MiB, /*total_ram=*/8192_MiB)); // Over cap
      33                 :             : 
      34                 :             :         // 16 GiB RAM - cap is 75%
      35         [ +  - ]:           2 :         BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/10'000_MiB, /*total_ram=*/16384_MiB)); // Under cap
      36         [ +  - ]:           2 :         BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/15'000_MiB, /*total_ram=*/16384_MiB)); // Over cap
      37                 :             : 
      38                 :             :         // 32 GiB RAM - cap is 75%
      39         [ +  - ]:           1 :         BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/20'000_MiB, /*total_ram=*/32768_MiB)); // Under cap
      40         [ +  - ]:           2 :         BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/30'000_MiB, /*total_ram=*/32768_MiB)); // Over cap
      41                 :             :     }
      42                 :           1 : }
      43                 :             : 
      44                 :             : BOOST_AUTO_TEST_SUITE_END()