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test: Fuzz Base32/Base58/Base64 roundtrip conversions

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This commit introduces symmetric encode-decode roundtrips for all bases.
Minor refactors were also included:
• Split each base into a separate fuzz target.
• Added symmetric encode-decode roundtrip tests for all bases.
• Removed trim testing for encoded_string, as Base58 does not use whitespace padding.
• Made comparisons stricter by removing unnecessary lowercase conversions for bases that have mixed-case alphabets.

Co-authored-by: Hodlinator <172445034+hodlinator@users.noreply.github.com>
This commit is contained in:
Lőrinc
2024-08-29 19:03:40 +02:00
parent 5dd3a0d8a8
commit 635bc58f46
2 changed files with 65 additions and 40 deletions
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16
src/test/base58_tests.cpp
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@@ -82,20 +82,4 @@ BOOST_AUTO_TEST_CASE(base58_DecodeBase58)
BOOST_CHECK(!DecodeBase58Check("3vQB7B6MrGQZaxCuFg4oh\0" "0IOl"s, result, 100));
}
BOOST_AUTO_TEST_CASE(base58_random_encode_decode)
{
for (int n = 0; n < 1000; ++n) {
unsigned int len = 1 + m_rng.randbits(8);
unsigned int zeroes = m_rng.randbool() ? m_rng.randrange(len + 1) : 0;
auto data = Cat(std::vector<unsigned char>(zeroes, '\000'), m_rng.randbytes(len - zeroes));
auto encoded = EncodeBase58Check(data);
std::vector<unsigned char> decoded;
auto ok_too_small = DecodeBase58Check(encoded, decoded, m_rng.randrange(len));
BOOST_CHECK(!ok_too_small);
auto ok = DecodeBase58Check(encoded, decoded, len + m_rng.randrange(257 - len));
BOOST_CHECK(ok);
BOOST_CHECK(data == decoded);
}
}
BOOST_AUTO_TEST_SUITE_END()