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Merge #16931: test: add unittests for CheckProofOfWork

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0cc7dd74e0 test: add unittests for CheckProofOfWork (soroosh-sdi)

Pull request description:

  following situations are covered:
  - negative target
  - overflow target
  - target easier then powLimit
  - invalid hash (hash > target)

  Signed-off-by: soroosh-sdi <soroosh.sardari@gmail.com>

ACKs for top commit:
  promag:
    ACK 0cc7dd74e0, just read the code.
  laanwj:
    ACK 0cc7dd74e0

Tree-SHA512: 9f9ee952ebb211202939450aa3d61b3c2fae992dcfcab085e877507d78e02ea39a51ccacfc4852a0555f3cba07504ee132abd5cbfed75489553bee45c760bc7e
This commit is contained in:
Wladimir J. van der Laan 2019-09-30 11:36:51 +02:00
commit b658ca71b3
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1 changed files with 54 additions and 0 deletions
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54
src/test/pow_tests.cpp
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@ -60,6 +60,60 @@ BOOST_AUTO_TEST_CASE(get_next_work_upper_limit_actual)
BOOST_CHECK_EQUAL(CalculateNextWorkRequired(&pindexLast, nLastRetargetTime, chainParams->GetConsensus()), 0x1d00e1fdU);
}
BOOST_AUTO_TEST_CASE(CheckProofOfWork_test_negative_target)
{
const auto consensus = CreateChainParams(CBaseChainParams::MAIN)->GetConsensus();
uint256 hash;
unsigned int nBits;
nBits = UintToArith256(consensus.powLimit).GetCompact(true);
hash.SetHex("0x1");
BOOST_CHECK(!CheckProofOfWork(hash, nBits, consensus));
}
BOOST_AUTO_TEST_CASE(CheckProofOfWork_test_overflow_target)
{
const auto consensus = CreateChainParams(CBaseChainParams::MAIN)->GetConsensus();
uint256 hash;
unsigned int nBits = ~0x00800000;
hash.SetHex("0x1");
BOOST_CHECK(!CheckProofOfWork(hash, nBits, consensus));
}
BOOST_AUTO_TEST_CASE(CheckProofOfWork_test_too_easy_target)
{
const auto consensus = CreateChainParams(CBaseChainParams::MAIN)->GetConsensus();
uint256 hash;
unsigned int nBits;
arith_uint256 nBits_arith = UintToArith256(consensus.powLimit);
nBits_arith *= 2;
nBits = nBits_arith.GetCompact();
hash.SetHex("0x1");
BOOST_CHECK(!CheckProofOfWork(hash, nBits, consensus));
}
BOOST_AUTO_TEST_CASE(CheckProofOfWork_test_biger_hash_than_target)
{
const auto consensus = CreateChainParams(CBaseChainParams::MAIN)->GetConsensus();
uint256 hash;
unsigned int nBits;
arith_uint256 hash_arith = UintToArith256(consensus.powLimit);
nBits = hash_arith.GetCompact();
hash_arith *= 2; // hash > nBits
hash = ArithToUint256(hash_arith);
BOOST_CHECK(!CheckProofOfWork(hash, nBits, consensus));
}
BOOST_AUTO_TEST_CASE(CheckProofOfWork_test_zero_target)
{
const auto consensus = CreateChainParams(CBaseChainParams::MAIN)->GetConsensus();
uint256 hash;
unsigned int nBits;
arith_uint256 hash_arith{0};
nBits = hash_arith.GetCompact();
hash = ArithToUint256(hash_arith);
BOOST_CHECK(!CheckProofOfWork(hash, nBits, consensus));
}
BOOST_AUTO_TEST_CASE(GetBlockProofEquivalentTime_test)
{
const auto chainParams = CreateChainParams(CBaseChainParams::MAIN);