Line data    Source code

       1             : // Copyright (c) 2021 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 <minisketch.h>
       6             : #include <node/minisketchwrapper.h>
       7             : #include <random.h>
       8             : #include <test/util/random.h>
       9             : #include <test/util/setup_common.h>
      10             : 
      11             : #include <boost/test/unit_test.hpp>
      12             : 
      13             : #include <utility>
      14             : 
      15             : using node::MakeMinisketch32;
      16             : 
      17         146 : BOOST_AUTO_TEST_SUITE(minisketch_tests)
      18             : 
      19         148 : BOOST_AUTO_TEST_CASE(minisketch_test)
      20             : {
      21         101 :     for (int i = 0; i < 100; ++i) {
      22         100 :         uint32_t errors = 0 + InsecureRandRange(11);
      23         100 :         uint32_t start_a = 1 + InsecureRandRange(1000000000);
      24         100 :         uint32_t a_not_b = InsecureRandRange(errors + 1);
      25         100 :         uint32_t b_not_a = errors - a_not_b;
      26         100 :         uint32_t both = InsecureRandRange(10000);
      27         100 :         uint32_t end_a = start_a + a_not_b + both;
      28         100 :         uint32_t start_b = start_a + a_not_b;
      29         100 :         uint32_t end_b = start_b + both + b_not_a;
      30             : 
      31         100 :         Minisketch sketch_a = MakeMinisketch32(10);
      32      517090 :         for (uint32_t a = start_a; a < end_a; ++a) sketch_a.Add(a);
      33         100 :         Minisketch sketch_b = MakeMinisketch32(10);
      34      517061 :         for (uint32_t b = start_b; b < end_b; ++b) sketch_b.Add(b);
      35             : 
      36         100 :         Minisketch sketch_ar = MakeMinisketch32(10);
      37         100 :         Minisketch sketch_br = MakeMinisketch32(10);
      38         100 :         sketch_ar.Deserialize(sketch_a.Serialize());
      39         100 :         sketch_br.Deserialize(sketch_b.Serialize());
      40             : 
      41         100 :         Minisketch sketch_c = std::move(sketch_ar);
      42         100 :         sketch_c.Merge(sketch_br);
      43         100 :         auto dec = sketch_c.Decode(errors);
      44         100 :         BOOST_REQUIRE(dec.has_value());
      45         100 :         auto sols = std::move(*dec);
      46         100 :         std::sort(sols.begin(), sols.end());
      47         335 :         for (uint32_t i = 0; i < a_not_b; ++i) BOOST_CHECK_EQUAL(sols[i], start_a + i);
      48         306 :         for (uint32_t i = 0; i < b_not_a; ++i) BOOST_CHECK_EQUAL(sols[i + a_not_b], start_b + both + i);
      49         100 :     }
      50           1 : }
      51             : 
      52         146 : BOOST_AUTO_TEST_SUITE_END()