From 0cc7dd74e0af735dddf7e786f4ed136c382a4ad5 Mon Sep 17 00:00:00 2001 From: soroosh-sdi Date: Sat, 21 Sep 2019 22:33:17 +0430 Subject: test: add unittests for CheckProofOfWork following situations are covered: - negative target - overflow target - target easier then powLimit - invalid hash (hash > target) - zero target Signed-off-by: soroosh-sdi --- src/test/pow_tests.cpp | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) diff --git a/src/test/pow_tests.cpp b/src/test/pow_tests.cpp index 1123d4202c..deac349867 100644 --- a/src/test/pow_tests.cpp +++ b/src/test/pow_tests.cpp @@ -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); -- cgit v1.2.3