Coverage Report

Created: 2025-03-18 19:34

/root/bitcoin/src/test/fuzz/node_eviction.cpp
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// Copyright (c) 2020-2022 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <net.h>
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#include <protocol.h>
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#include <test/fuzz/FuzzedDataProvider.h>
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#include <test/fuzz/fuzz.h>
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#include <test/fuzz/util.h>
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#include <test/fuzz/util/net.h>
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#include <algorithm>
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#include <cassert>
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#include <cstdint>
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#include <optional>
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#include <vector>
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FUZZ_TARGET(node_eviction)
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{
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    FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
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    std::vector<NodeEvictionCandidate> eviction_candidates;
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    LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {
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        eviction_candidates.push_back({
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            /*id=*/fuzzed_data_provider.ConsumeIntegral<NodeId>(),
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            /*m_connected=*/std::chrono::seconds{fuzzed_data_provider.ConsumeIntegral<int64_t>()},
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            /*m_min_ping_time=*/std::chrono::microseconds{fuzzed_data_provider.ConsumeIntegral<int64_t>()},
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            /*m_last_block_time=*/std::chrono::seconds{fuzzed_data_provider.ConsumeIntegral<int64_t>()},
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            /*m_last_tx_time=*/std::chrono::seconds{fuzzed_data_provider.ConsumeIntegral<int64_t>()},
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            /*fRelevantServices=*/fuzzed_data_provider.ConsumeBool(),
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            /*m_relay_txs=*/fuzzed_data_provider.ConsumeBool(),
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            /*fBloomFilter=*/fuzzed_data_provider.ConsumeBool(),
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            /*nKeyedNetGroup=*/fuzzed_data_provider.ConsumeIntegral<uint64_t>(),
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            /*prefer_evict=*/fuzzed_data_provider.ConsumeBool(),
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            /*m_is_local=*/fuzzed_data_provider.ConsumeBool(),
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            /*m_network=*/fuzzed_data_provider.PickValueInArray(ALL_NETWORKS),
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            /*m_noban=*/fuzzed_data_provider.ConsumeBool(),
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            /*m_conn_type=*/fuzzed_data_provider.PickValueInArray(ALL_CONNECTION_TYPES),
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        });
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    }
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    // Make a copy since eviction_candidates may be in some valid but otherwise
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    // indeterminate state after the SelectNodeToEvict(&&) call.
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    const std::vector<NodeEvictionCandidate> eviction_candidates_copy = eviction_candidates;
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    const std::optional<NodeId> node_to_evict = SelectNodeToEvict(std::move(eviction_candidates));
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    if (node_to_evict) {
  Branch (44:9): [True: 0, False: 0]

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        assert(std::any_of(eviction_candidates_copy.begin(), eviction_candidates_copy.end(), [&node_to_evict](const NodeEvictionCandidate& eviction_candidate) { return *node_to_evict == eviction_candidate.id; }));
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    }
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}