1 files changed, 16 insertions, 4 deletions
diff --git a/src/test/txvalidationcache_tests.cpp b/src/test/txvalidationcache_tests.cpp
index 6b0775a73a..fe30d5f3a7 100644
--- a/src/test/txvalidationcache_tests.cpp
+++ b/src/test/txvalidationcache_tests.cpp
@@ -66,18 +66,27 @@ BOOST_FIXTURE_TEST_CASE(tx_mempool_block_doublespend, TestChain100Setup)
 
     // Test 1: block with both of those transactions should be rejected.
     block = CreateAndProcessBlock(spends, scriptPubKey);
-    BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() != block.GetHash());
+    {
+        LOCK(cs_main);
+        BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() != block.GetHash());
+    }
 
     // Test 2: ... and should be rejected if spend1 is in the memory pool
     BOOST_CHECK(ToMemPool(spends[0]));
     block = CreateAndProcessBlock(spends, scriptPubKey);
-    BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() != block.GetHash());
+    {
+        LOCK(cs_main);
+        BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() != block.GetHash());
+    }
     mempool.clear();
 
     // Test 3: ... and should be rejected if spend2 is in the memory pool
     BOOST_CHECK(ToMemPool(spends[1]));
     block = CreateAndProcessBlock(spends, scriptPubKey);
-    BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() != block.GetHash());
+    {
+        LOCK(cs_main);
+        BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() != block.GetHash());
+    }
     mempool.clear();
 
     // Final sanity test: first spend in mempool, second in block, that's OK:
@@ -85,7 +94,10 @@ BOOST_FIXTURE_TEST_CASE(tx_mempool_block_doublespend, TestChain100Setup)
     oneSpend.push_back(spends[0]);
     BOOST_CHECK(ToMemPool(spends[1]));
     block = CreateAndProcessBlock(oneSpend, scriptPubKey);
-    BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() == block.GetHash());
+    {
+        LOCK(cs_main);
+        BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() == block.GetHash());
+    }
     // spends[1] should have been removed from the mempool when the
     // block with spends[0] is accepted:
     BOOST_CHECK_EQUAL(mempool.size(), 0U);