diff --git a/src/storage/src/region/tests.rs b/src/storage/src/region/tests.rs
index 0ab111b60b..59dc935a3d 100644
--- a/src/storage/src/region/tests.rs
+++ b/src/storage/src/region/tests.rs
@@ -306,7 +306,8 @@ async fn test_new_region() {
     let dir = create_temp_dir("test_new_region");
     let store_dir = dir.path().to_str().unwrap();
 
-    let store_config = config_util::new_store_config(region_name, store_dir).await;
+    let store_config =
+        config_util::new_store_config(region_name, store_dir, EngineConfig::default()).await;
     let placeholder_memtable = store_config
         .memtable_builder
         .build(metadata.schema().clone());
diff --git a/src/storage/src/region/tests/alter.rs b/src/storage/src/region/tests/alter.rs
index fa370623d3..2a4b58528c 100644
--- a/src/storage/src/region/tests/alter.rs
+++ b/src/storage/src/region/tests/alter.rs
@@ -26,6 +26,7 @@ use store_api::storage::{
     SchemaRef, Snapshot, WriteRequest, WriteResponse,
 };
 
+use crate::config::EngineConfig;
 use crate::region::tests::{self, FileTesterBase};
 use crate::region::{OpenOptions, RawRegionMetadata, RegionImpl, RegionMetadata};
 use crate::test_util;
@@ -38,7 +39,8 @@ async fn create_region_for_alter(store_dir: &str) -> RegionImpl<RaftEngineLogSto
     // Always disable version column in this test.
     let metadata = tests::new_metadata(REGION_NAME);
 
-    let store_config = config_util::new_store_config(REGION_NAME, store_dir).await;
+    let store_config =
+        config_util::new_store_config(REGION_NAME, store_dir, EngineConfig::default()).await;
 
     RegionImpl::create(metadata, store_config).await.unwrap()
 }
@@ -112,7 +114,9 @@ impl AlterTester {
         }
         self.base = None;
         // Reopen the region.
-        let store_config = config_util::new_store_config(REGION_NAME, &self.store_dir).await;
+        let store_config =
+            config_util::new_store_config(REGION_NAME, &self.store_dir, EngineConfig::default())
+                .await;
         let opts = OpenOptions::default();
         let region = RegionImpl::open(REGION_NAME.to_string(), store_config, &opts)
             .await
diff --git a/src/storage/src/region/tests/basic.rs b/src/storage/src/region/tests/basic.rs
index 04177e0d3b..c917635a7d 100644
--- a/src/storage/src/region/tests/basic.rs
+++ b/src/storage/src/region/tests/basic.rs
@@ -19,6 +19,7 @@ use common_test_util::temp_dir::create_temp_dir;
 use log_store::raft_engine::log_store::RaftEngineLogStore;
 use store_api::storage::{OpenOptions, SequenceNumber, WriteResponse};
 
+use crate::config::EngineConfig;
 use crate::error::Result;
 use crate::region::tests::{self, FileTesterBase};
 use crate::region::RegionImpl;
@@ -32,7 +33,8 @@ async fn create_region_for_basic(
     store_dir: &str,
 ) -> RegionImpl<RaftEngineLogStore> {
     let metadata = tests::new_metadata(region_name);
-    let store_config = config_util::new_store_config(region_name, store_dir).await;
+    let store_config =
+        config_util::new_store_config(region_name, store_dir, EngineConfig::default()).await;
     RegionImpl::create(metadata, store_config).await.unwrap()
 }
 
@@ -75,7 +77,12 @@ impl Tester {
 
         self.base = None;
         // Reopen the region.
-        let store_config = config_util::new_store_config(&self.region_name, &self.store_dir).await;
+        let store_config = config_util::new_store_config(
+            &self.region_name,
+            &self.store_dir,
+            EngineConfig::default(),
+        )
+        .await;
         let opts = OpenOptions::default();
         let region = RegionImpl::open(self.region_name.clone(), store_config, &opts).await?;
         match region {
diff --git a/src/storage/src/region/tests/close.rs b/src/storage/src/region/tests/close.rs
index 173ed601d2..3046a60dd9 100644
--- a/src/storage/src/region/tests/close.rs
+++ b/src/storage/src/region/tests/close.rs
@@ -22,6 +22,7 @@ use store_api::storage::{
     AlterOperation, AlterRequest, CloseContext, Region, RegionMeta, WriteResponse,
 };
 
+use crate::config::EngineConfig;
 use crate::engine;
 use crate::error::Error;
 use crate::flush::FlushStrategyRef;
@@ -44,7 +45,8 @@ async fn create_region_for_close(
 ) -> RegionImpl<RaftEngineLogStore> {
     let metadata = tests::new_metadata(REGION_NAME);
 
-    let mut store_config = config_util::new_store_config(REGION_NAME, store_dir).await;
+    let mut store_config =
+        config_util::new_store_config(REGION_NAME, store_dir, EngineConfig::default()).await;
     store_config.flush_strategy = flush_strategy;
 
     RegionImpl::create(metadata, store_config).await.unwrap()
diff --git a/src/storage/src/region/tests/compact.rs b/src/storage/src/region/tests/compact.rs
index 2c2fd5c930..c52151804b 100644
--- a/src/storage/src/region/tests/compact.rs
+++ b/src/storage/src/region/tests/compact.rs
@@ -83,6 +83,7 @@ async fn create_region_for_compaction<
         REGION_NAME,
         store_dir,
         object_store.clone(),
+        EngineConfig::default(),
     )
     .await;
     store_config.engine_config = Arc::new(engine_config);
diff --git a/src/storage/src/region/tests/flush.rs b/src/storage/src/region/tests/flush.rs
index b0901e7f50..e3d3b80230 100644
--- a/src/storage/src/region/tests/flush.rs
+++ b/src/storage/src/region/tests/flush.rs
@@ -27,6 +27,7 @@ use store_api::storage::{
     FlushContext, FlushReason, OpenOptions, Region, ScanRequest, WriteResponse,
 };
 
+use crate::config::EngineConfig;
 use crate::engine::{self, RegionMap};
 use crate::flush::{FlushStrategyRef, FlushType};
 use crate::region::tests::{self, FileTesterBase};
@@ -46,8 +47,15 @@ async fn create_region_for_flush(
 ) {
     let metadata = tests::new_metadata(REGION_NAME);
 
-    let (mut store_config, regions) =
-        config_util::new_store_config_and_region_map(REGION_NAME, store_dir).await;
+    let (mut store_config, regions) = config_util::new_store_config_and_region_map(
+        REGION_NAME,
+        store_dir,
+        EngineConfig {
+            max_files_in_l0: usize::MAX,
+            ..Default::default()
+        },
+    )
+    .await;
     store_config.flush_strategy = flush_strategy;
 
     (
@@ -84,7 +92,15 @@ impl FlushTester {
         }
         self.base = None;
         // Reopen the region.
-        let mut store_config = config_util::new_store_config(REGION_NAME, &self.store_dir).await;
+        let mut store_config = config_util::new_store_config(
+            REGION_NAME,
+            &self.store_dir,
+            EngineConfig {
+                max_files_in_l0: usize::MAX,
+                ..Default::default()
+            },
+        )
+        .await;
         store_config.flush_strategy = self.flush_strategy.clone();
         let opts = OpenOptions::default();
         let region = RegionImpl::open(REGION_NAME.to_string(), store_config, &opts)
diff --git a/src/storage/src/region/tests/projection.rs b/src/storage/src/region/tests/projection.rs
index 8256c21ee7..79d957ffb3 100644
--- a/src/storage/src/region/tests/projection.rs
+++ b/src/storage/src/region/tests/projection.rs
@@ -26,6 +26,7 @@ use store_api::storage::{
     Chunk, ChunkReader, ReadContext, Region, ScanRequest, Snapshot, WriteContext, WriteRequest,
 };
 
+use crate::config::EngineConfig;
 use crate::region::{RegionImpl, RegionMetadata};
 use crate::test_util::{self, config_util, descriptor_util, write_batch_util};
 use crate::write_batch::WriteBatch;
@@ -171,7 +172,8 @@ const REGION_NAME: &str = "region-projection-0";
 async fn new_tester(store_dir: &str) -> ProjectionTester<RaftEngineLogStore> {
     let metadata = new_metadata(REGION_NAME);
 
-    let store_config = config_util::new_store_config(REGION_NAME, store_dir).await;
+    let store_config =
+        config_util::new_store_config(REGION_NAME, store_dir, EngineConfig::default()).await;
     let region = RegionImpl::create(metadata, store_config).await.unwrap();
 
     ProjectionTester::with_region(region)
diff --git a/src/storage/src/test_util/config_util.rs b/src/storage/src/test_util/config_util.rs
index 342fe1804f..a9db4f8f2b 100644
--- a/src/storage/src/test_util/config_util.rs
+++ b/src/storage/src/test_util/config_util.rs
@@ -22,7 +22,7 @@ use object_store::ObjectStore;
 use store_api::manifest::Manifest;
 
 use crate::compaction::noop::NoopCompactionScheduler;
-use crate::config::DEFAULT_REGION_WRITE_BUFFER_SIZE;
+use crate::config::{EngineConfig, DEFAULT_REGION_WRITE_BUFFER_SIZE};
 use crate::engine::{self, RegionMap};
 use crate::file_purger::noop::NoopFilePurgeHandler;
 use crate::flush::{FlushScheduler, PickerConfig, SizeBasedStrategy};
@@ -40,12 +40,13 @@ fn log_store_dir(store_dir: &str) -> String {
 pub async fn new_store_config(
     region_name: &str,
     store_dir: &str,
+    engine_config: EngineConfig,
 ) -> StoreConfig<RaftEngineLogStore> {
     let mut builder = Fs::default();
     builder.root(store_dir);
     let object_store = ObjectStore::new(builder).unwrap().finish();
 
-    new_store_config_with_object_store(region_name, store_dir, object_store)
+    new_store_config_with_object_store(region_name, store_dir, object_store, engine_config)
         .await
         .0
 }
@@ -54,6 +55,7 @@ pub async fn new_store_config(
 pub async fn new_store_config_and_region_map(
     region_name: &str,
     store_dir: &str,
+    engine_config: EngineConfig,
 ) -> (
     StoreConfig<RaftEngineLogStore>,
     Arc<RegionMap<RaftEngineLogStore>>,
@@ -62,7 +64,7 @@ pub async fn new_store_config_and_region_map(
     builder.root(store_dir);
     let object_store = ObjectStore::new(builder).unwrap().finish();
 
-    new_store_config_with_object_store(region_name, store_dir, object_store).await
+    new_store_config_with_object_store(region_name, store_dir, object_store, engine_config).await
 }
 
 /// Create a new StoreConfig with given object store.
@@ -70,6 +72,7 @@ pub async fn new_store_config_with_object_store(
     region_name: &str,
     store_dir: &str,
     object_store: ObjectStore,
+    engine_config: EngineConfig,
 ) -> (
     StoreConfig<RaftEngineLogStore>,
     Arc<RegionMap<RaftEngineLogStore>>,
@@ -117,7 +120,7 @@ pub async fn new_store_config_with_object_store(
             flush_scheduler,
             flush_strategy: Arc::new(SizeBasedStrategy::default()),
             compaction_scheduler,
-            engine_config: Default::default(),
+            engine_config: Arc::new(engine_config),
             file_purger,
             ttl: None,
             compaction_time_window: None,