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-rw-r--r--src/test/pow_tests.cpp54
1 files changed, 54 insertions, 0 deletions
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);