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| author | practicalswift <practicalswift@users.noreply.github.com> | 2020-03-23 14:18:07 +0000 |
|---|---|---|
| committer | practicalswift <practicalswift@users.noreply.github.com> | 2020-03-24 14:39:23 +0000 |
| commit | 43ff0d91f8a4af68e64fd12273133322d44a69ea (patch) | |
| tree | 7d25165e870f6314f0a30c8169f101654298fd66 | |
| parent | a8695db7851dabdda08b2ec9a68d6a27c0e2fdc4 (diff) | |
tests: Add fuzzing harness for functions in timedata.h
| -rw-r--r-- | src/Makefile.test.include | 7 | ||||
| -rw-r--r-- | src/test/fuzz/timedata.cpp | 29 |
2 files changed, 36 insertions, 0 deletions
diff --git a/src/Makefile.test.include b/src/Makefile.test.include index a5b49f6bd7..3742513cc1 100644 --- a/src/Makefile.test.include +++ b/src/Makefile.test.include @@ -98,6 +98,7 @@ FUZZ_TARGETS = \ test/fuzz/string \ test/fuzz/strprintf \ test/fuzz/sub_net_deserialize \ + test/fuzz/timedata \ test/fuzz/transaction \ test/fuzz/tx_in \ test/fuzz/tx_in_deserialize \ @@ -853,6 +854,12 @@ test_fuzz_sub_net_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON) test_fuzz_sub_net_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) test_fuzz_sub_net_deserialize_SOURCES = $(FUZZ_SUITE) test/fuzz/deserialize.cpp +test_fuzz_timedata_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) +test_fuzz_timedata_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_timedata_LDADD = $(FUZZ_SUITE_LD_COMMON) +test_fuzz_timedata_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_timedata_SOURCES = $(FUZZ_SUITE) test/fuzz/timedata.cpp + test_fuzz_transaction_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) test_fuzz_transaction_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) test_fuzz_transaction_LDADD = $(FUZZ_SUITE_LD_COMMON) diff --git a/src/test/fuzz/timedata.cpp b/src/test/fuzz/timedata.cpp new file mode 100644 index 0000000000..a0e579a88f --- /dev/null +++ b/src/test/fuzz/timedata.cpp @@ -0,0 +1,29 @@ +// Copyright (c) 2020 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include <test/fuzz/FuzzedDataProvider.h> +#include <test/fuzz/fuzz.h> +#include <test/fuzz/util.h> +#include <timedata.h> + +#include <cstdint> +#include <string> +#include <vector> + +void test_one_input(const std::vector<uint8_t>& buffer) +{ + FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size()); + const unsigned int max_size = fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(0, 1000); + // Divide by 2 to avoid signed integer overflow in .median() + const int64_t initial_value = fuzzed_data_provider.ConsumeIntegral<int64_t>() / 2; + CMedianFilter<int64_t> median_filter{max_size, initial_value}; + while (fuzzed_data_provider.remaining_bytes() > 0) { + (void)median_filter.median(); + assert(median_filter.size() > 0); + assert(static_cast<size_t>(median_filter.size()) == median_filter.sorted().size()); + assert(static_cast<unsigned int>(median_filter.size()) <= max_size || max_size == 0); + // Divide by 2 to avoid signed integer overflow in .median() + median_filter.input(fuzzed_data_provider.ConsumeIntegral<int64_t>() / 2); + } +} |