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-rw-r--r--src/test/coins_tests.cpp25
1 files changed, 21 insertions, 4 deletions
diff --git a/src/test/coins_tests.cpp b/src/test/coins_tests.cpp
index 436c1bffa0..c91621e227 100644
--- a/src/test/coins_tests.cpp
+++ b/src/test/coins_tests.cpp
@@ -8,6 +8,7 @@
#include <script/standard.h>
#include <streams.h>
#include <test/util/setup_common.h>
+#include <txdb.h>
#include <uint256.h>
#include <undo.h>
#include <util/strencodings.h>
@@ -109,7 +110,12 @@ static const unsigned int NUM_SIMULATION_ITERATIONS = 40000;
//
// During the process, booleans are kept to make sure that the randomized
// operation hits all branches.
-BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
+//
+// If fake_best_block is true, assign a random uint256 to mock the recording
+// of best block on flush. This is necessary when using CCoinsViewDB as the base,
+// otherwise we'll hit an assertion in BatchWrite.
+//
+void SimulationTest(CCoinsView* base, bool fake_best_block)
{
// Various coverage trackers.
bool removed_all_caches = false;
@@ -126,9 +132,8 @@ BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
std::map<COutPoint, Coin> result;
// The cache stack.
- CCoinsViewTest base; // A CCoinsViewTest at the bottom.
std::vector<CCoinsViewCacheTest*> stack; // A stack of CCoinsViewCaches on top.
- stack.push_back(new CCoinsViewCacheTest(&base)); // Start with one cache.
+ stack.push_back(new CCoinsViewCacheTest(base)); // Start with one cache.
// Use a limited set of random transaction ids, so we do test overwriting entries.
std::vector<uint256> txids;
@@ -211,6 +216,7 @@ BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
// Every 100 iterations, flush an intermediate cache
if (stack.size() > 1 && InsecureRandBool() == 0) {
unsigned int flushIndex = InsecureRandRange(stack.size() - 1);
+ if (fake_best_block) stack[flushIndex]->SetBestBlock(InsecureRand256());
BOOST_CHECK(stack[flushIndex]->Flush());
}
}
@@ -218,13 +224,14 @@ BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
// Every 100 iterations, change the cache stack.
if (stack.size() > 0 && InsecureRandBool() == 0) {
//Remove the top cache
+ if (fake_best_block) stack.back()->SetBestBlock(InsecureRand256());
BOOST_CHECK(stack.back()->Flush());
delete stack.back();
stack.pop_back();
}
if (stack.size() == 0 || (stack.size() < 4 && InsecureRandBool())) {
//Add a new cache
- CCoinsView* tip = &base;
+ CCoinsView* tip = base;
if (stack.size() > 0) {
tip = stack.back();
} else {
@@ -256,6 +263,16 @@ BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
BOOST_CHECK(uncached_an_entry);
}
+// Run the above simulation for multiple base types.
+BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
+{
+ CCoinsViewTest base;
+ SimulationTest(&base, false);
+
+ CCoinsViewDB db_base{"test", /*nCacheSize*/ 1 << 23, /*fMemory*/ true, /*fWipe*/ false};
+ SimulationTest(&db_base, true);
+}
+
// Store of all necessary tx and undo data for next test
typedef std::map<COutPoint, std::tuple<CTransaction,CTxUndo,Coin>> UtxoData;
UtxoData utxoData;