diff --git a/kclvm/driver/src/kpm_update.rs b/kclvm/driver/src/kpm_update.rs
index 56e673f0c..5fb384a42 100644
--- a/kclvm/driver/src/kpm_update.rs
+++ b/kclvm/driver/src/kpm_update.rs
@@ -1,6 +1,6 @@
+use crate::kpm_metadata::get_path_for_executable;
 use anyhow::{bail, Result};
 use std::{path::PathBuf, process::Command};
-use crate::kpm_metadata::get_path_for_executable;
 
 const MANIFEST_FILE: &str = "kcl.mod";
 
@@ -26,7 +26,7 @@ pub(crate) fn update_kcl_module(manifest_path: PathBuf) -> Result<()> {
             }
         }
         None => bail!(
-            "Manifest file '{}' not found in directory hierarchy", 
+            "Manifest file '{}' not found in directory hierarchy",
             MANIFEST_FILE
         ),
     }
@@ -54,4 +54,4 @@ pub(crate) fn lookup_the_nearest_file_dir(
             None => return None,
         }
     }
-}
\ No newline at end of file
+}
diff --git a/kclvm/driver/src/tests.rs b/kclvm/driver/src/tests.rs
index fe08f347f..7aa14acdf 100644
--- a/kclvm/driver/src/tests.rs
+++ b/kclvm/driver/src/tests.rs
@@ -9,8 +9,8 @@ use walkdir::WalkDir;
 
 use crate::arguments::parse_key_value_pair;
 use crate::kpm_metadata::{fetch_metadata, fill_pkg_maps_for_k_file, lookup_the_nearest_file_dir};
-use crate::{canonicalize_input_files, expand_input_files, get_pkg_list};
 use crate::kpm_update::update_kcl_module;
+use crate::{canonicalize_input_files, expand_input_files, get_pkg_list};
 
 #[test]
 fn test_canonicalize_input_files() {
@@ -384,31 +384,33 @@ fn test_get_pkg_list() {
 
 #[cfg(test)]
 // Define a mock structure to simulate the behavior of Command::output
- struct MockCommand {
-     output: Result<MockCommandOutput, std::io::Error>,
+struct MockCommand {
+    output: Result<MockCommandOutput, std::io::Error>,
 }
 // Define a mock structure to represent the output of Command::output
 struct MockCommandOutput {
-     status: std::process::ExitStatus,
-     stderr: Vec<u8>,
- }
+    status: std::process::ExitStatus,
+    stderr: Vec<u8>,
+}
 
 #[test]
 fn test_update_kcl_module_success() {
     let manifest_path = PathBuf::from("path/to/manifest");
-    let result = update_kcl_module( manifest_path);
-    assert!(result.is_ok()
-    );
+    let result = update_kcl_module(manifest_path);
+    assert!(result.is_ok());
 }
 
 #[test]
 fn test_update_kcl_module_failure() {
     let manifest_path = PathBuf::from("path/to/manifest");
     fn mock_command_new_failing(_command: &str) -> MockCommand {
-            MockCommand {
-                output: Err(std::io::Error::new(std::io::ErrorKind::Other, "Command failed")),
-            }
+        MockCommand {
+            output: Err(std::io::Error::new(
+                std::io::ErrorKind::Other,
+                "Command failed",
+            )),
         }
-    let result = update_kcl_module( manifest_path);
+    }
+    let result = update_kcl_module(manifest_path);
     assert!(result.is_err());
-}
\ No newline at end of file
+}