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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=*/1_GiB));    // Under cap
      18         [ +  - ]:           2 :     BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/512_MiB, /*total_ram=*/1_GiB));  // At cap
      19         [ +  - ]:           2 :     BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/1500_MiB, /*total_ram=*/1_GiB)); // Over cap
      20                 :             : 
      21                 :             :     // 2 GiB RAM - cap is 75%
      22         [ +  - ]:           2 :     BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/1500_MiB, /*total_ram=*/2_GiB)); // Under cap
      23         [ +  - ]:           2 :     BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/1600_MiB, /*total_ram=*/2_GiB)); // Over cap
      24                 :             : 
      25                 :             :     // 4 GiB RAM - cap is 75%
      26         [ +  - ]:           2 :     BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/2500_MiB, /*total_ram=*/4_GiB)); // Under cap
      27         [ +  - ]:           2 :     BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/3500_MiB, /*total_ram=*/4_GiB)); // Over cap
      28                 :             : 
      29                 :             :     // 8 GiB RAM - cap is 75%
      30         [ +  - ]:           2 :     BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/6000_MiB, /*total_ram=*/8_GiB)); // Under cap
      31         [ +  - ]:           2 :     BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/7000_MiB, /*total_ram=*/8_GiB)); // Over cap
      32                 :             : 
      33                 :             :     // 16 GiB RAM - cap is 75%
      34         [ +  - ]:           2 :     BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/10_GiB, /*total_ram=*/16_GiB)); // Under cap
      35         [ +  - ]:           2 :     BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/15_GiB, /*total_ram=*/16_GiB)); // Over cap
      36                 :             : 
      37                 :             :     // 32 GiB RAM - cap is 75%
      38         [ +  - ]:           2 :     BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/20_GiB, /*total_ram=*/32_GiB)); // Under cap
      39         [ +  - ]:           1 :     BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/30_GiB, /*total_ram=*/32_GiB)); // Over cap
      40                 :           1 : }
      41                 :             : 
      42                 :             : BOOST_AUTO_TEST_SUITE_END()