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-rw-r--r--src/test/coins_tests.cpp364
1 files changed, 364 insertions, 0 deletions
diff --git a/src/test/coins_tests.cpp b/src/test/coins_tests.cpp
index 79dea00e46..f0e74a55d2 100644
--- a/src/test/coins_tests.cpp
+++ b/src/test/coins_tests.cpp
@@ -80,6 +80,8 @@ public:
BOOST_CHECK_EQUAL(DynamicMemoryUsage(), ret);
}
+ CCoinsMap& map() { return cacheCoins; }
+ size_t& usage() { return cachedCoinsUsage; }
};
}
@@ -415,4 +417,366 @@ BOOST_AUTO_TEST_CASE(ccoins_serialization)
}
}
+const static uint256 TXID;
+const static CAmount PRUNED = -1;
+const static CAmount ABSENT = -2;
+const static CAmount VALUE1 = 100;
+const static CAmount VALUE2 = 200;
+const static CAmount VALUE3 = 300;
+const static char DIRTY = CCoinsCacheEntry::DIRTY;
+const static char FRESH = CCoinsCacheEntry::FRESH;
+const static char NO_ENTRY = -1;
+
+const static auto FLAGS = {char(0), FRESH, DIRTY, char(DIRTY | FRESH)};
+const static auto CLEAN_FLAGS = {char(0), FRESH};
+const static auto DIRTY_FLAGS = {DIRTY, char(DIRTY | FRESH)};
+const static auto ABSENT_FLAGS = {NO_ENTRY};
+
+void SetCoinsValue(CAmount value, CCoins& coins)
+{
+ assert(value != ABSENT);
+ coins.Clear();
+ assert(coins.IsPruned());
+ if (value != PRUNED) {
+ coins.vout.emplace_back();
+ coins.vout.back().nValue = value;
+ assert(!coins.IsPruned());
+ }
+}
+
+size_t InsertCoinsMapEntry(CCoinsMap& map, CAmount value, char flags)
+{
+ if (value == ABSENT) {
+ assert(flags == NO_ENTRY);
+ return 0;
+ }
+ assert(flags != NO_ENTRY);
+ CCoinsCacheEntry entry;
+ entry.flags = flags;
+ SetCoinsValue(value, entry.coins);
+ auto inserted = map.emplace(TXID, std::move(entry));
+ assert(inserted.second);
+ return inserted.first->second.coins.DynamicMemoryUsage();
+}
+
+void GetCoinsMapEntry(const CCoinsMap& map, CAmount& value, char& flags)
+{
+ auto it = map.find(TXID);
+ if (it == map.end()) {
+ value = ABSENT;
+ flags = NO_ENTRY;
+ } else {
+ if (it->second.coins.IsPruned()) {
+ assert(it->second.coins.vout.size() == 0);
+ value = PRUNED;
+ } else {
+ assert(it->second.coins.vout.size() == 1);
+ value = it->second.coins.vout[0].nValue;
+ }
+ flags = it->second.flags;
+ assert(flags != NO_ENTRY);
+ }
+}
+
+void WriteCoinsViewEntry(CCoinsView& view, CAmount value, char flags)
+{
+ CCoinsMap map;
+ InsertCoinsMapEntry(map, value, flags);
+ view.BatchWrite(map, {});
+}
+
+class SingleEntryCacheTest
+{
+public:
+ SingleEntryCacheTest(CAmount base_value, CAmount cache_value, char cache_flags)
+ {
+ WriteCoinsViewEntry(base, base_value, base_value == ABSENT ? NO_ENTRY : DIRTY);
+ cache.usage() += InsertCoinsMapEntry(cache.map(), cache_value, cache_flags);
+ }
+
+ CCoinsView root;
+ CCoinsViewCacheTest base{&root};
+ CCoinsViewCacheTest cache{&base};
+};
+
+void CheckAccessCoins(CAmount base_value, CAmount cache_value, CAmount expected_value, char cache_flags, char expected_flags)
+{
+ SingleEntryCacheTest test(base_value, cache_value, cache_flags);
+ test.cache.AccessCoins(TXID);
+ test.cache.SelfTest();
+
+ CAmount result_value;
+ char result_flags;
+ GetCoinsMapEntry(test.cache.map(), result_value, result_flags);
+ BOOST_CHECK_EQUAL(result_value, expected_value);
+ BOOST_CHECK_EQUAL(result_flags, expected_flags);
+}
+
+BOOST_AUTO_TEST_CASE(ccoins_access)
+{
+ /* Check AccessCoin behavior, requesting a coin from a cache view layered on
+ * top of a base view, and checking the resulting entry in the cache after
+ * the access.
+ *
+ * Base Cache Result Cache Result
+ * Value Value Value Flags Flags
+ */
+ CheckAccessCoins(ABSENT, ABSENT, ABSENT, NO_ENTRY , NO_ENTRY );
+ CheckAccessCoins(ABSENT, PRUNED, PRUNED, 0 , 0 );
+ CheckAccessCoins(ABSENT, PRUNED, PRUNED, FRESH , FRESH );
+ CheckAccessCoins(ABSENT, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckAccessCoins(ABSENT, PRUNED, PRUNED, DIRTY|FRESH, DIRTY|FRESH);
+ CheckAccessCoins(ABSENT, VALUE2, VALUE2, 0 , 0 );
+ CheckAccessCoins(ABSENT, VALUE2, VALUE2, FRESH , FRESH );
+ CheckAccessCoins(ABSENT, VALUE2, VALUE2, DIRTY , DIRTY );
+ CheckAccessCoins(ABSENT, VALUE2, VALUE2, DIRTY|FRESH, DIRTY|FRESH);
+ CheckAccessCoins(PRUNED, ABSENT, PRUNED, NO_ENTRY , FRESH );
+ CheckAccessCoins(PRUNED, PRUNED, PRUNED, 0 , 0 );
+ CheckAccessCoins(PRUNED, PRUNED, PRUNED, FRESH , FRESH );
+ CheckAccessCoins(PRUNED, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckAccessCoins(PRUNED, PRUNED, PRUNED, DIRTY|FRESH, DIRTY|FRESH);
+ CheckAccessCoins(PRUNED, VALUE2, VALUE2, 0 , 0 );
+ CheckAccessCoins(PRUNED, VALUE2, VALUE2, FRESH , FRESH );
+ CheckAccessCoins(PRUNED, VALUE2, VALUE2, DIRTY , DIRTY );
+ CheckAccessCoins(PRUNED, VALUE2, VALUE2, DIRTY|FRESH, DIRTY|FRESH);
+ CheckAccessCoins(VALUE1, ABSENT, VALUE1, NO_ENTRY , 0 );
+ CheckAccessCoins(VALUE1, PRUNED, PRUNED, 0 , 0 );
+ CheckAccessCoins(VALUE1, PRUNED, PRUNED, FRESH , FRESH );
+ CheckAccessCoins(VALUE1, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckAccessCoins(VALUE1, PRUNED, PRUNED, DIRTY|FRESH, DIRTY|FRESH);
+ CheckAccessCoins(VALUE1, VALUE2, VALUE2, 0 , 0 );
+ CheckAccessCoins(VALUE1, VALUE2, VALUE2, FRESH , FRESH );
+ CheckAccessCoins(VALUE1, VALUE2, VALUE2, DIRTY , DIRTY );
+ CheckAccessCoins(VALUE1, VALUE2, VALUE2, DIRTY|FRESH, DIRTY|FRESH);
+}
+
+void CheckModifyCoins(CAmount base_value, CAmount cache_value, CAmount modify_value, CAmount expected_value, char cache_flags, char expected_flags)
+{
+ SingleEntryCacheTest test(base_value, cache_value, cache_flags);
+ SetCoinsValue(modify_value, *test.cache.ModifyCoins(TXID));
+ test.cache.SelfTest();
+
+ CAmount result_value;
+ char result_flags;
+ GetCoinsMapEntry(test.cache.map(), result_value, result_flags);
+ BOOST_CHECK_EQUAL(result_value, expected_value);
+ BOOST_CHECK_EQUAL(result_flags, expected_flags);
+};
+
+BOOST_AUTO_TEST_CASE(ccoins_modify)
+{
+ /* Check ModifyCoin behavior, requesting a coin from a cache view layered on
+ * top of a base view, writing a modification to the coin, and then checking
+ * the resulting entry in the cache after the modification.
+ *
+ * Base Cache Write Result Cache Result
+ * Value Value Value Value Flags Flags
+ */
+ CheckModifyCoins(ABSENT, ABSENT, PRUNED, ABSENT, NO_ENTRY , NO_ENTRY );
+ CheckModifyCoins(ABSENT, ABSENT, VALUE3, VALUE3, NO_ENTRY , DIRTY|FRESH);
+ CheckModifyCoins(ABSENT, PRUNED, PRUNED, PRUNED, 0 , DIRTY );
+ CheckModifyCoins(ABSENT, PRUNED, PRUNED, ABSENT, FRESH , NO_ENTRY );
+ CheckModifyCoins(ABSENT, PRUNED, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckModifyCoins(ABSENT, PRUNED, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
+ CheckModifyCoins(ABSENT, PRUNED, VALUE3, VALUE3, 0 , DIRTY );
+ CheckModifyCoins(ABSENT, PRUNED, VALUE3, VALUE3, FRESH , DIRTY|FRESH);
+ CheckModifyCoins(ABSENT, PRUNED, VALUE3, VALUE3, DIRTY , DIRTY );
+ CheckModifyCoins(ABSENT, PRUNED, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH);
+ CheckModifyCoins(ABSENT, VALUE2, PRUNED, PRUNED, 0 , DIRTY );
+ CheckModifyCoins(ABSENT, VALUE2, PRUNED, ABSENT, FRESH , NO_ENTRY );
+ CheckModifyCoins(ABSENT, VALUE2, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckModifyCoins(ABSENT, VALUE2, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
+ CheckModifyCoins(ABSENT, VALUE2, VALUE3, VALUE3, 0 , DIRTY );
+ CheckModifyCoins(ABSENT, VALUE2, VALUE3, VALUE3, FRESH , DIRTY|FRESH);
+ CheckModifyCoins(ABSENT, VALUE2, VALUE3, VALUE3, DIRTY , DIRTY );
+ CheckModifyCoins(ABSENT, VALUE2, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH);
+ CheckModifyCoins(PRUNED, ABSENT, PRUNED, ABSENT, NO_ENTRY , NO_ENTRY );
+ CheckModifyCoins(PRUNED, ABSENT, VALUE3, VALUE3, NO_ENTRY , DIRTY|FRESH);
+ CheckModifyCoins(PRUNED, PRUNED, PRUNED, PRUNED, 0 , DIRTY );
+ CheckModifyCoins(PRUNED, PRUNED, PRUNED, ABSENT, FRESH , NO_ENTRY );
+ CheckModifyCoins(PRUNED, PRUNED, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckModifyCoins(PRUNED, PRUNED, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
+ CheckModifyCoins(PRUNED, PRUNED, VALUE3, VALUE3, 0 , DIRTY );
+ CheckModifyCoins(PRUNED, PRUNED, VALUE3, VALUE3, FRESH , DIRTY|FRESH);
+ CheckModifyCoins(PRUNED, PRUNED, VALUE3, VALUE3, DIRTY , DIRTY );
+ CheckModifyCoins(PRUNED, PRUNED, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH);
+ CheckModifyCoins(PRUNED, VALUE2, PRUNED, PRUNED, 0 , DIRTY );
+ CheckModifyCoins(PRUNED, VALUE2, PRUNED, ABSENT, FRESH , NO_ENTRY );
+ CheckModifyCoins(PRUNED, VALUE2, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckModifyCoins(PRUNED, VALUE2, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
+ CheckModifyCoins(PRUNED, VALUE2, VALUE3, VALUE3, 0 , DIRTY );
+ CheckModifyCoins(PRUNED, VALUE2, VALUE3, VALUE3, FRESH , DIRTY|FRESH);
+ CheckModifyCoins(PRUNED, VALUE2, VALUE3, VALUE3, DIRTY , DIRTY );
+ CheckModifyCoins(PRUNED, VALUE2, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH);
+ CheckModifyCoins(VALUE1, ABSENT, PRUNED, PRUNED, NO_ENTRY , DIRTY );
+ CheckModifyCoins(VALUE1, ABSENT, VALUE3, VALUE3, NO_ENTRY , DIRTY );
+ CheckModifyCoins(VALUE1, PRUNED, PRUNED, PRUNED, 0 , DIRTY );
+ CheckModifyCoins(VALUE1, PRUNED, PRUNED, ABSENT, FRESH , NO_ENTRY );
+ CheckModifyCoins(VALUE1, PRUNED, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckModifyCoins(VALUE1, PRUNED, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
+ CheckModifyCoins(VALUE1, PRUNED, VALUE3, VALUE3, 0 , DIRTY );
+ CheckModifyCoins(VALUE1, PRUNED, VALUE3, VALUE3, FRESH , DIRTY|FRESH);
+ CheckModifyCoins(VALUE1, PRUNED, VALUE3, VALUE3, DIRTY , DIRTY );
+ CheckModifyCoins(VALUE1, PRUNED, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH);
+ CheckModifyCoins(VALUE1, VALUE2, PRUNED, PRUNED, 0 , DIRTY );
+ CheckModifyCoins(VALUE1, VALUE2, PRUNED, ABSENT, FRESH , NO_ENTRY );
+ CheckModifyCoins(VALUE1, VALUE2, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckModifyCoins(VALUE1, VALUE2, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
+ CheckModifyCoins(VALUE1, VALUE2, VALUE3, VALUE3, 0 , DIRTY );
+ CheckModifyCoins(VALUE1, VALUE2, VALUE3, VALUE3, FRESH , DIRTY|FRESH);
+ CheckModifyCoins(VALUE1, VALUE2, VALUE3, VALUE3, DIRTY , DIRTY );
+ CheckModifyCoins(VALUE1, VALUE2, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH);
+}
+
+void CheckModifyNewCoinsBase(CAmount base_value, CAmount cache_value, CAmount modify_value, CAmount expected_value, char cache_flags, char expected_flags, bool coinbase)
+{
+ SingleEntryCacheTest test(base_value, cache_value, cache_flags);
+ SetCoinsValue(modify_value, *test.cache.ModifyNewCoins(TXID, coinbase));
+
+ CAmount result_value;
+ char result_flags;
+ GetCoinsMapEntry(test.cache.map(), result_value, result_flags);
+ BOOST_CHECK_EQUAL(result_value, expected_value);
+ BOOST_CHECK_EQUAL(result_flags, expected_flags);
+}
+
+// Simple wrapper for CheckModifyNewCoinsBase function above that loops through
+// different possible base_values, making sure each one gives the same results.
+// This wrapper lets the modify_new test below be shorter and less repetitive,
+// while still verifying that the CoinsViewCache::ModifyNewCoins implementation
+// ignores base values.
+template <typename... Args>
+void CheckModifyNewCoins(Args&&... args)
+{
+ for (CAmount base_value : {ABSENT, PRUNED, VALUE1})
+ CheckModifyNewCoinsBase(base_value, std::forward<Args>(args)...);
+}
+
+BOOST_AUTO_TEST_CASE(ccoins_modify_new)
+{
+ /* Check ModifyNewCoin behavior, requesting a new coin from a cache view,
+ * writing a modification to the coin, and then checking the resulting
+ * entry in the cache after the modification. Verify behavior with the
+ * with the ModifyNewCoin coinbase argument set to false, and to true.
+ *
+ * Cache Write Result Cache Result Coinbase
+ * Value Value Value Flags Flags
+ */
+ CheckModifyNewCoins(ABSENT, PRUNED, ABSENT, NO_ENTRY , NO_ENTRY , false);
+ CheckModifyNewCoins(ABSENT, PRUNED, PRUNED, NO_ENTRY , DIRTY , true );
+ CheckModifyNewCoins(ABSENT, VALUE3, VALUE3, NO_ENTRY , DIRTY|FRESH, false);
+ CheckModifyNewCoins(ABSENT, VALUE3, VALUE3, NO_ENTRY , DIRTY , true );
+ CheckModifyNewCoins(PRUNED, PRUNED, ABSENT, 0 , NO_ENTRY , false);
+ CheckModifyNewCoins(PRUNED, PRUNED, PRUNED, 0 , DIRTY , true );
+ CheckModifyNewCoins(PRUNED, PRUNED, ABSENT, FRESH , NO_ENTRY , false);
+ CheckModifyNewCoins(PRUNED, PRUNED, ABSENT, FRESH , NO_ENTRY , true );
+ CheckModifyNewCoins(PRUNED, PRUNED, ABSENT, DIRTY , NO_ENTRY , false);
+ CheckModifyNewCoins(PRUNED, PRUNED, PRUNED, DIRTY , DIRTY , true );
+ CheckModifyNewCoins(PRUNED, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY , false);
+ CheckModifyNewCoins(PRUNED, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY , true );
+ CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, 0 , DIRTY|FRESH, false);
+ CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, 0 , DIRTY , true );
+ CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, FRESH , DIRTY|FRESH, false);
+ CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, FRESH , DIRTY|FRESH, true );
+ CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, DIRTY , DIRTY|FRESH, false);
+ CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, DIRTY , DIRTY , true );
+ CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH, false);
+ CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH, true );
+ CheckModifyNewCoins(VALUE2, PRUNED, ABSENT, 0 , NO_ENTRY , false);
+ CheckModifyNewCoins(VALUE2, PRUNED, PRUNED, 0 , DIRTY , true );
+ CheckModifyNewCoins(VALUE2, PRUNED, ABSENT, FRESH , NO_ENTRY , false);
+ CheckModifyNewCoins(VALUE2, PRUNED, ABSENT, FRESH , NO_ENTRY , true );
+ CheckModifyNewCoins(VALUE2, PRUNED, ABSENT, DIRTY , NO_ENTRY , false);
+ CheckModifyNewCoins(VALUE2, PRUNED, PRUNED, DIRTY , DIRTY , true );
+ CheckModifyNewCoins(VALUE2, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY , false);
+ CheckModifyNewCoins(VALUE2, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY , true );
+ CheckModifyNewCoins(VALUE2, VALUE3, VALUE3, 0 , DIRTY|FRESH, false);
+ CheckModifyNewCoins(VALUE2, VALUE3, VALUE3, 0 , DIRTY , true );
+ CheckModifyNewCoins(VALUE2, VALUE3, VALUE3, FRESH , DIRTY|FRESH, false);
+ CheckModifyNewCoins(VALUE2, VALUE3, VALUE3, FRESH , DIRTY|FRESH, true );
+ CheckModifyNewCoins(VALUE2, VALUE3, VALUE3, DIRTY , DIRTY|FRESH, false);
+ CheckModifyNewCoins(VALUE2, VALUE3, VALUE3, DIRTY , DIRTY , true );
+ CheckModifyNewCoins(VALUE2, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH, false);
+ CheckModifyNewCoins(VALUE2, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH, true );
+}
+
+void CheckWriteCoins(CAmount parent_value, CAmount child_value, CAmount expected_value, char parent_flags, char child_flags, char expected_flags)
+{
+ SingleEntryCacheTest test(ABSENT, parent_value, parent_flags);
+ WriteCoinsViewEntry(test.cache, child_value, child_flags);
+ test.cache.SelfTest();
+
+ CAmount result_value;
+ char result_flags;
+ GetCoinsMapEntry(test.cache.map(), result_value, result_flags);
+ BOOST_CHECK_EQUAL(result_value, expected_value);
+ BOOST_CHECK_EQUAL(result_flags, expected_flags);
+}
+
+BOOST_AUTO_TEST_CASE(ccoins_write)
+{
+ /* Check BatchWrite behavior, flushing one entry from a child cache to a
+ * parent cache, and checking the resulting entry in the parent cache
+ * after the write.
+ *
+ * Parent Child Result Parent Child Result
+ * Value Value Value Flags Flags Flags
+ */
+ CheckWriteCoins(ABSENT, ABSENT, ABSENT, NO_ENTRY , NO_ENTRY , NO_ENTRY );
+ CheckWriteCoins(ABSENT, PRUNED, PRUNED, NO_ENTRY , DIRTY , DIRTY );
+ CheckWriteCoins(ABSENT, PRUNED, ABSENT, NO_ENTRY , DIRTY|FRESH, NO_ENTRY );
+ CheckWriteCoins(ABSENT, VALUE2, VALUE2, NO_ENTRY , DIRTY , DIRTY );
+ CheckWriteCoins(ABSENT, VALUE2, VALUE2, NO_ENTRY , DIRTY|FRESH, DIRTY|FRESH);
+ CheckWriteCoins(PRUNED, ABSENT, PRUNED, 0 , NO_ENTRY , 0 );
+ CheckWriteCoins(PRUNED, ABSENT, PRUNED, FRESH , NO_ENTRY , FRESH );
+ CheckWriteCoins(PRUNED, ABSENT, PRUNED, DIRTY , NO_ENTRY , DIRTY );
+ CheckWriteCoins(PRUNED, ABSENT, PRUNED, DIRTY|FRESH, NO_ENTRY , DIRTY|FRESH);
+ CheckWriteCoins(PRUNED, PRUNED, PRUNED, 0 , DIRTY , DIRTY );
+ CheckWriteCoins(PRUNED, PRUNED, PRUNED, 0 , DIRTY|FRESH, DIRTY );
+ CheckWriteCoins(PRUNED, PRUNED, ABSENT, FRESH , DIRTY , NO_ENTRY );
+ CheckWriteCoins(PRUNED, PRUNED, ABSENT, FRESH , DIRTY|FRESH, NO_ENTRY );
+ CheckWriteCoins(PRUNED, PRUNED, PRUNED, DIRTY , DIRTY , DIRTY );
+ CheckWriteCoins(PRUNED, PRUNED, PRUNED, DIRTY , DIRTY|FRESH, DIRTY );
+ CheckWriteCoins(PRUNED, PRUNED, ABSENT, DIRTY|FRESH, DIRTY , NO_ENTRY );
+ CheckWriteCoins(PRUNED, PRUNED, ABSENT, DIRTY|FRESH, DIRTY|FRESH, NO_ENTRY );
+ CheckWriteCoins(PRUNED, VALUE2, VALUE2, 0 , DIRTY , DIRTY );
+ CheckWriteCoins(PRUNED, VALUE2, VALUE2, 0 , DIRTY|FRESH, DIRTY );
+ CheckWriteCoins(PRUNED, VALUE2, VALUE2, FRESH , DIRTY , DIRTY|FRESH);
+ CheckWriteCoins(PRUNED, VALUE2, VALUE2, FRESH , DIRTY|FRESH, DIRTY|FRESH);
+ CheckWriteCoins(PRUNED, VALUE2, VALUE2, DIRTY , DIRTY , DIRTY );
+ CheckWriteCoins(PRUNED, VALUE2, VALUE2, DIRTY , DIRTY|FRESH, DIRTY );
+ CheckWriteCoins(PRUNED, VALUE2, VALUE2, DIRTY|FRESH, DIRTY , DIRTY|FRESH);
+ CheckWriteCoins(PRUNED, VALUE2, VALUE2, DIRTY|FRESH, DIRTY|FRESH, DIRTY|FRESH);
+ CheckWriteCoins(VALUE1, ABSENT, VALUE1, 0 , NO_ENTRY , 0 );
+ CheckWriteCoins(VALUE1, ABSENT, VALUE1, FRESH , NO_ENTRY , FRESH );
+ CheckWriteCoins(VALUE1, ABSENT, VALUE1, DIRTY , NO_ENTRY , DIRTY );
+ CheckWriteCoins(VALUE1, ABSENT, VALUE1, DIRTY|FRESH, NO_ENTRY , DIRTY|FRESH);
+ CheckWriteCoins(VALUE1, PRUNED, PRUNED, 0 , DIRTY , DIRTY );
+ CheckWriteCoins(VALUE1, PRUNED, PRUNED, 0 , DIRTY|FRESH, DIRTY );
+ CheckWriteCoins(VALUE1, PRUNED, ABSENT, FRESH , DIRTY , NO_ENTRY );
+ CheckWriteCoins(VALUE1, PRUNED, ABSENT, FRESH , DIRTY|FRESH, NO_ENTRY );
+ CheckWriteCoins(VALUE1, PRUNED, PRUNED, DIRTY , DIRTY , DIRTY );
+ CheckWriteCoins(VALUE1, PRUNED, PRUNED, DIRTY , DIRTY|FRESH, DIRTY );
+ CheckWriteCoins(VALUE1, PRUNED, ABSENT, DIRTY|FRESH, DIRTY , NO_ENTRY );
+ CheckWriteCoins(VALUE1, PRUNED, ABSENT, DIRTY|FRESH, DIRTY|FRESH, NO_ENTRY );
+ CheckWriteCoins(VALUE1, VALUE2, VALUE2, 0 , DIRTY , DIRTY );
+ CheckWriteCoins(VALUE1, VALUE2, VALUE2, 0 , DIRTY|FRESH, DIRTY );
+ CheckWriteCoins(VALUE1, VALUE2, VALUE2, FRESH , DIRTY , DIRTY|FRESH);
+ CheckWriteCoins(VALUE1, VALUE2, VALUE2, FRESH , DIRTY|FRESH, DIRTY|FRESH);
+ CheckWriteCoins(VALUE1, VALUE2, VALUE2, DIRTY , DIRTY , DIRTY );
+ CheckWriteCoins(VALUE1, VALUE2, VALUE2, DIRTY , DIRTY|FRESH, DIRTY );
+ CheckWriteCoins(VALUE1, VALUE2, VALUE2, DIRTY|FRESH, DIRTY , DIRTY|FRESH);
+ CheckWriteCoins(VALUE1, VALUE2, VALUE2, DIRTY|FRESH, DIRTY|FRESH, DIRTY|FRESH);
+
+ // The checks above omit cases where the child flags are not DIRTY, since
+ // they would be too repetitive (the parent cache is never updated in these
+ // cases). The loop below covers these cases and makes sure the parent cache
+ // is always left unchanged.
+ for (CAmount parent_value : {ABSENT, PRUNED, VALUE1})
+ for (CAmount child_value : {ABSENT, PRUNED, VALUE2})
+ for (char parent_flags : parent_value == ABSENT ? ABSENT_FLAGS : FLAGS)
+ for (char child_flags : child_value == ABSENT ? ABSENT_FLAGS : CLEAN_FLAGS)
+ CheckWriteCoins(parent_value, child_value, parent_value, parent_flags, child_flags, parent_flags);
+}
+
BOOST_AUTO_TEST_SUITE_END()