[ntuple] update merger test to make sure we test nRepetitions

Author: silverweed

tree/ntuple/test/ntuple_merger.cxx

@@ -1015,12 +1015,13 @@ TEST(RNTupleMerger, MergeLateModelExtension)
    {
       auto model = RNTupleModel::Create();
       auto fieldFoo = model->MakeField<std::unordered_map<std::string, int>>("foo");
-      auto fieldVfoo = model->MakeField<std::vector<int>>("vfoo");
+      auto fieldVfoo = model->MakeField<std::vector<int>[3]>("vfoo");
       auto fieldBar = model->MakeField<int>("bar");
       auto ntuple = RNTupleWriter::Recreate(std::move(model), "ntuple", fileGuard1.GetPath(), RNTupleWriteOptions());
       for (size_t i = 0; i < 10; ++i) {
          fieldFoo->insert(std::make_pair(std::to_string(i), i * 123));
-         *fieldVfoo = {(int)i * 123};
+         fieldVfoo[0] = {(int)i * 123};
+         fieldVfoo[2] = {(int)i * 345};
          *fieldBar = i * 321;
          ntuple->Fill();
       }
@@ -1031,14 +1032,15 @@ TEST(RNTupleMerger, MergeLateModelExtension)
       auto model = RNTupleModel::Create();
       auto fieldBaz = model->MakeField<int>("baz");
       auto fieldFoo = model->MakeField<std::unordered_map<std::string, int>>("foo");
-      auto fieldVfoo = model->MakeField<std::vector<int>>("vfoo");
+      auto fieldVfoo = model->MakeField<std::vector<int>[3]>("vfoo");
       auto wopts = RNTupleWriteOptions();
       wopts.SetCompression(0);
       auto ntuple = RNTupleWriter::Recreate(std::move(model), "ntuple", fileGuard2.GetPath(), wopts);
       for (size_t i = 0; i < 10; ++i) {
          *fieldBaz = i * 567;
          fieldFoo->insert(std::make_pair(std::to_string(i), i * 765));
-         *fieldVfoo = {(int)i * 765};
+         fieldVfoo[0] = {(int)i * 765};
+         fieldVfoo[2] = {(int)i * 987};
          ntuple->Fill();
       }
    }
@@ -1072,21 +1074,25 @@ TEST(RNTupleMerger, MergeLateModelExtension)
       auto ntuple = RNTupleReader::Open("ntuple", fileGuard3.GetPath());
       EXPECT_EQ(ntuple->GetNEntries(), 20);
       auto foo = ntuple->GetModel().GetDefaultEntry().GetPtr<std::unordered_map<std::string, int>>("foo");
-      auto vfoo = ntuple->GetModel().GetDefaultEntry().GetPtr<std::vector<int>>("vfoo");
+      auto vfoo = ntuple->GetModel().GetDefaultEntry().GetPtr<std::vector<int>[3]>("vfoo");
       auto bar = ntuple->GetModel().GetDefaultEntry().GetPtr<int>("bar");
       auto baz = ntuple->GetModel().GetDefaultEntry().GetPtr<int>("baz");
 
       for (int i = 0; i < 10; ++i) {
          ntuple->LoadEntry(i);
          ASSERT_EQ((*foo)[std::to_string(i)], i * 123);
-         ASSERT_EQ((*vfoo)[0], i * 123);
+         ASSERT_EQ(vfoo[0][0], i * 123);
+         ASSERT_EQ(vfoo[2][0], i * 345);
+         ASSERT_TRUE(vfoo[1].empty());
          ASSERT_EQ(*bar, i * 321);
          ASSERT_EQ(*baz, 0);
       }
       for (int i = 10; i < 20; ++i) {
          ntuple->LoadEntry(i);
          ASSERT_EQ((*foo)[std::to_string(i - 10)], (i - 10) * 765);
-         ASSERT_EQ((*vfoo)[0], (i - 10) * 765);
+         ASSERT_EQ(vfoo[0][0], (i - 10) * 765);
+         ASSERT_EQ(vfoo[2][0], (i - 10) * 987);
+         ASSERT_TRUE(vfoo[1].empty());
          ASSERT_EQ(*bar, 0);
          ASSERT_EQ(*baz, (i - 10) * 567);
       }