s3Select: add unit test case

Signed-off-by: junxiang Mu <1948535941@qq.com>

crates/s3select-query/src/lib.rs

@@ -20,6 +20,9 @@ pub mod instance;
 pub mod metadata;
 pub mod sql;
 
+#[cfg(test)]
+mod test;
+
 use rustfs_s3select_api::{QueryResult, server::dbms::DatabaseManagerSystem};
 use s3s::dto::SelectObjectContentInput;
 use std::sync::{Arc, LazyLock};
@@ -75,10 +78,25 @@ pub async fn get_global_db(
 }
 
 /// Create a fresh database instance without using cached components (for testing)
-pub async fn create_fresh_db(
-    input: SelectObjectContentInput,
-    enable_debug: bool,
-) -> QueryResult<Arc<dyn DatabaseManagerSystem + Send + Sync>> {
-    let db = crate::instance::make_rustfsms(Arc::new(input), enable_debug).await?;
+pub async fn create_fresh_db() -> QueryResult<Arc<dyn DatabaseManagerSystem + Send + Sync>> {
+    // Create a default test input for fresh database creation
+    let default_input = SelectObjectContentInput {
+        bucket: "test-bucket".to_string(),
+        expected_bucket_owner: None,
+        key: "test.csv".to_string(),
+        sse_customer_algorithm: None,
+        sse_customer_key: None,
+        sse_customer_key_md5: None,
+        request: s3s::dto::SelectObjectContentRequest {
+            expression: "SELECT * FROM S3Object".to_string(),
+            expression_type: s3s::dto::ExpressionType::from_static("SQL"),
+            input_serialization: s3s::dto::InputSerialization::default(),
+            output_serialization: s3s::dto::OutputSerialization::default(),
+            request_progress: None,
+            scan_range: None,
+        },
+    };
+
+    let db = crate::instance::make_rustfsms(Arc::new(default_input), true).await?;
     Ok(Arc::new(db) as Arc<dyn DatabaseManagerSystem + Send + Sync>)
 }