Coverage Report

Created: 2025-11-16 06:14

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/phashmap_fuzz.cc
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/* Copyright 2021 Google LLC
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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      http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#include <iostream>
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#include <bitset>
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#include <cinttypes>
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#include <unistd.h>
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#include "parallel_hashmap/phmap_dump.h"
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#include <fuzzer/FuzzedDataProvider.h>
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using phmap::flat_hash_map;
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using namespace std;
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588
void serialise_test(const uint8_t *data, size_t size) {
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588
    phmap::flat_hash_map<unsigned int, int> table;
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588
    FuzzedDataProvider fuzzed_data(data, size);
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588
    const int num_items = fuzzed_data.ConsumeIntegral<int16_t>();
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10.4M
    for (int i=0; i < num_items; ++i)  {
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10.4M
        table.insert(typename phmap::flat_hash_map<unsigned int, int>::value_type(
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10.4M
                    fuzzed_data.ConsumeIntegral<uint32_t>(), 
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10.4M
                    fuzzed_data.ConsumeIntegral<int32_t>()));
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10.4M
    }
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588
    phmap::BinaryOutputArchive ar_out("/dump.data");
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588
    table.phmap_dump(ar_out);
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    //MapType table_in;
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588
    phmap::flat_hash_map<unsigned int, int> table_in;
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588
    phmap::BinaryInputArchive ar_in("/dump.data");
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    table_in.phmap_load(ar_in);
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    if(table == table_in) {
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        unlink("/dump.data");
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        return;
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    }
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548
    unlink("/dump.data");
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}
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void
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588
test_assignments(const uint8_t *data, size_t size) {
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588
    phmap::flat_hash_map<std::string, std::string> email;
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588
    FuzzedDataProvider fuzzed_data(data, size);
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588
    const int num_items = fuzzed_data.ConsumeIntegral<int16_t>();
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10.4M
    for (int i=0; i < num_items; ++i) {
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10.4M
            phmap::flat_hash_map<std::string, std::string>::value_type(
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10.4M
                    fuzzed_data.ConsumeRandomLengthString(), 
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10.4M
                    fuzzed_data.ConsumeRandomLengthString());
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10.4M
    }
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    // Iterate through all of the items.
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588
    for (const auto& n: email) {}
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588
}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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588
    serialise_test(data, size);
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    test_assignments(data, size);
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    return 0;
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}