Merge pull request #5918

f7303f9 Use equivalent PoW for non-main-chain requests (Pieter Wuille)

1 files changed, 24 insertions, 0 deletions

diff --git a/src/test/pow_tests.cpp b/src/test/pow_tests.cpp
index 4ce1591c35..a436749287 100644
--- a/src/test/pow_tests.cpp
+++ b/src/test/pow_tests.cpp
@@ -69,4 +69,28 @@ BOOST_AUTO_TEST_CASE(get_next_work_upper_limit_actual)
     BOOST_CHECK_EQUAL(CalculateNextWorkRequired(&pindexLast, nLastRetargetTime, params), 0x1d00e1fd);
 }
 
+BOOST_AUTO_TEST_CASE(GetBlockProofEquivalentTime_test)
+{
+    SelectParams(CBaseChainParams::MAIN);
+    const Consensus::Params& params = Params().GetConsensus();
+
+    std::vector<CBlockIndex> blocks(10000);
+    for (int i = 0; i < 10000; i++) {
+        blocks[i].pprev = i ? &blocks[i - 1] : NULL;
+        blocks[i].nHeight = i;
+        blocks[i].nTime = 1269211443 + i * params.nPowTargetSpacing;
+        blocks[i].nBits = 0x207fffff; /* target 0x7fffff000... */
+        blocks[i].nChainWork = i ? blocks[i - 1].nChainWork + GetBlockProof(blocks[i - 1]) : arith_uint256(0);
+    }
+
+    for (int j = 0; j < 1000; j++) {
+        CBlockIndex *p1 = &blocks[GetRand(10000)];
+        CBlockIndex *p2 = &blocks[GetRand(10000)];
+        CBlockIndex *p3 = &blocks[GetRand(10000)];
+
+        int64_t tdiff = GetBlockProofEquivalentTime(*p1, *p2, *p3, params);
+        BOOST_CHECK_EQUAL(tdiff, p1->GetBlockTime() - p2->GetBlockTime());
+    }
+}
+
 BOOST_AUTO_TEST_SUITE_END()