More test for autopartitionin of topics (#10613)

Author: nshestakov

ydb/core/persqueue/ut/ut_with_sdk/autoscaling_ut.cpp

@@ -929,9 +929,63 @@ Y_UNIT_TEST_SUITE(TopicAutoscaling) {
         UNIT_ASSERT_VALUES_EQUAL_C(result.GetStatus(), NYdb::EStatus::SUCCESS, result.GetIssues().ToString());
     }
 
+    ui64 GetBalancerTabletId(TTopicSdkTestSetup& setup, const TString& topicPath) {
+        auto pathDescr = setup.GetServer().AnnoyingClient->Ls(topicPath)->Record.GetPathDescription().GetSelf();
+        auto balancerTabletId = pathDescr.GetBalancerTabletID();
+        Cerr << ">>>>> BalancerTabletID=" << balancerTabletId << Endl << Flush;
+        UNIT_ASSERT(balancerTabletId);
+        return balancerTabletId;
+    }
+
+    void SplitPartition(TTopicSdkTestSetup& setup, const TString& topicPath, ui32 partitionId) {
+        auto balancerTabletId = GetBalancerTabletId(setup, topicPath);
+        auto edge = setup.GetRuntime().AllocateEdgeActor();
+        setup.GetRuntime().SendToPipe(balancerTabletId, edge, new TEvPQ::TEvPartitionScaleStatusChanged(partitionId, NKikimrPQ::EScaleStatus::NEED_SPLIT));
+    }
+
+    void AssertPartitionCount(TTopicSdkTestSetup& setup, const TString& topicPath, size_t expectedCount) {
+        auto client = setup.MakeClient();
+        auto describe = client.DescribeTopic(topicPath).GetValueSync();
+        UNIT_ASSERT_VALUES_EQUAL(describe.GetTopicDescription().GetPartitions().size(), expectedCount);
+    }
+
+    void WaitAndAssertPartitionCount(TTopicSdkTestSetup& setup, const TString& topicPath, size_t expectedCount) {
+        auto client = setup.MakeClient();
+        size_t partitionCount = 0;
+        for (size_t i = 0; i < 10; ++i) {
+            Sleep(TDuration::Seconds(1));
+            auto describe = client.DescribeTopic(topicPath).GetValueSync();
+            partitionCount = describe.GetTopicDescription().GetPartitions().size();
+            if (partitionCount == expectedCount) {
+                break;
+            }
+        }
+        UNIT_ASSERT_VALUES_EQUAL(partitionCount, expectedCount);
+    }
+
+    Y_UNIT_TEST(WithDir_PartitionSplit_AutosplitByLoad) {
+        TTopicSdkTestSetup setup = CreateSetup();
+        auto tableClient = setup.MakeTableClient();
+        auto session = tableClient.CreateSession().GetValueSync().GetSession();
+
+        setup.GetServer().AnnoyingClient->MkDir("/Root", "dir");
+
+        ExecuteQuery(session, R"(
+            --!syntax_v1
+            CREATE TOPIC `/Root/dir/origin`
+                WITH (
+                    AUTO_PARTITIONING_STRATEGY = 'SCALE_UP',
+                    MAX_ACTIVE_PARTITIONS = 50
+                );
+        )");
+
+        AssertPartitionCount(setup, "/Root/dir/origin", 1);
+        SplitPartition(setup, "/Root/dir/origin", 0);
+        WaitAndAssertPartitionCount(setup, "/Root/dir/origin", 3);
+    }
+
     Y_UNIT_TEST(CDC_PartitionSplit_AutosplitByLoad) {
         TTopicSdkTestSetup setup = CreateSetup();
-        auto client = setup.MakeClient();
         auto tableClient = setup.MakeTableClient();
         auto session = tableClient.CreateSession().GetValueSync().GetSession();
 
@@ -954,36 +1008,9 @@ Y_UNIT_TEST_SUITE(TopicAutoscaling) {
                 );
         )");
 
-        {
-            auto describe = client.DescribeTopic("/Root/origin/feed").GetValueSync();
-            UNIT_ASSERT_VALUES_EQUAL(describe.GetTopicDescription().GetPartitions().size(), 1);
-        }
-
-        ui64 balancerTabletId;
-        {
-            auto pathDescr = setup.GetServer().AnnoyingClient->Ls("/Root/origin/feed/streamImpl")->Record.GetPathDescription().GetSelf();
-            balancerTabletId = pathDescr.GetBalancerTabletID();
-            Cerr << ">>>>> BalancerTabletID=" << balancerTabletId << Endl << Flush;
-            UNIT_ASSERT(balancerTabletId);
-        }
-
-        {
-            const auto edge = setup.GetRuntime().AllocateEdgeActor();
-            setup.GetRuntime().SendToPipe(balancerTabletId, edge, new TEvPQ::TEvPartitionScaleStatusChanged(0, NKikimrPQ::EScaleStatus::NEED_SPLIT));
-        }
-
-        {
-            size_t partitionCount = 0;
-            for (size_t i = 0; i < 10; ++i) {
-                Sleep(TDuration::Seconds(1));
-                auto describe = client.DescribeTopic("/Root/origin/feed").GetValueSync();
-                partitionCount = describe.GetTopicDescription().GetPartitions().size();
-                if (partitionCount == 3) {
-                    break;
-                }
-            }
-            UNIT_ASSERT_VALUES_EQUAL(partitionCount, 3);
-        }
+        AssertPartitionCount(setup, "/Root/origin/feed", 1);
+        SplitPartition(setup, "/Root/origin/feed/streamImpl", 0);
+        WaitAndAssertPartitionCount(setup, "/Root/origin/feed", 3);
     }
 
     Y_UNIT_TEST(MidOfRange) {