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713314abfa
Previously, the {Basic,}TestingSetup for fuzzers were set up in many ways:
1. Calling InitializeFuzzingContext, which implicitly constructs a static
const BasicTestingSetup
2. Directly constructing a static const BasicTestingSetup in the initialize_*
function
3. Directly constructing a static TestingSetup and reproducing the
initialization arguments (I'm assuming because
InitializeFuzzingContext only initializes a BasicTestingSetup)
The new, relatively-simple MakeFuzzingContext function allows us to
consolidate these methods of initialization by being flexible enough to
be used in all situations. It:
1. Is templated so that we can choose to initialize any of
the *TestingSetup classes
2. Has sane defaults which are often used in fuzzers but are also
easily overridable
3. Returns a unique_ptr, explicitly transferring ownership to the caller
to deal with according to its situation
29 lines
1.0 KiB
C++
29 lines
1.0 KiB
C++
// Copyright (c) 2020 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 <policy/fees.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 <cstdint>
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#include <vector>
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void initialize_policy_estimator_io()
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{
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static const auto testing_setup = MakeFuzzingContext<>();
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}
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FUZZ_TARGET_INIT(policy_estimator_io, initialize_policy_estimator_io)
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{
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FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
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FuzzedAutoFileProvider fuzzed_auto_file_provider = ConsumeAutoFile(fuzzed_data_provider);
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CAutoFile fuzzed_auto_file = fuzzed_auto_file_provider.open();
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// Re-using block_policy_estimator across runs to avoid costly creation of CBlockPolicyEstimator object.
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static CBlockPolicyEstimator block_policy_estimator;
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if (block_policy_estimator.Read(fuzzed_auto_file)) {
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block_policy_estimator.Write(fuzzed_auto_file);
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}
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}
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