fix build & tests

Author: kungasc

ydb/core/tablet_flat/flat_stat_part_group_iter_create.cpp

@@ -4,7 +4,7 @@
 
 namespace NKikimr::NTable {
 
-THolder<IStatsPartGroupIterator> CreateStatsPartGroupIter(const TPart* part, IPages* env, NPage::TGroupId groupId)
+THolder<IStatsPartGroupIterator> CreateStatsPartGroupIterator(const TPart* part, IPages* env, NPage::TGroupId groupId)
 {
     if (groupId.Index < (groupId.IsHistoric() ? part->IndexPages.BTreeHistoric : part->IndexPages.BTreeGroups).size()) {
         return MakeHolder<TStatsPartGroupBtreeIndexIterator>(part, env, groupId);

ydb/core/tablet_flat/ut/ut_stat.cpp

@@ -13,8 +13,9 @@ namespace {
     struct TTouchEnv : public NTest::TTestEnv {
         const TSharedData* TryGetPage(const TPart *part, TPageId id, TGroupId groupId) override
         {
-            UNIT_ASSERT_C(part->GetPageType(id) == EPage::Index, "Shouldn't request non-index pages");
-            if (!Touched[groupId].insert(id).second) {
+            UNIT_ASSERT_C(part->GetPageType(id) == EPage::Index || part->GetPageType(id) == EPage::BTreeIndex, "Shouldn't request non-index pages");
+            // TODO: charge b-tree index
+            if (!Touched[groupId].insert(id).second || part->GetPageType(id) == EPage::BTreeIndex) {
                 return NTest::TTestEnv::TryGetPage(part, id, groupId);
             }
             return nullptr;