diff --git a/kclvm/cmd/src/tests.rs b/kclvm/cmd/src/tests.rs
index 656bf0648..a07bf355d 100644
--- a/kclvm/cmd/src/tests.rs
+++ b/kclvm/cmd/src/tests.rs
@@ -64,7 +64,6 @@ fn test_fmt_cmd() {
     assert!(fmt_command(&matches).is_ok())
 }
 
-#[test]
 fn test_vet_cmd() {
     let test_path = std::path::Path::new(".")
         .join("src")
@@ -188,8 +187,9 @@ fn test_external_cmd_invalid() {
 }
 
 #[test]
-//
+// All the unit test cases in [`test_run_command`] can not be executed concurrently.
 fn test_run_command() {
+    test_vet_cmd();
     test_run_command_with_import();
     test_run_command_with_konfig();
 }
diff --git a/kclvm/parser/src/lib.rs b/kclvm/parser/src/lib.rs
index ef303f759..481d16004 100644
--- a/kclvm/parser/src/lib.rs
+++ b/kclvm/parser/src/lib.rs
@@ -571,24 +571,6 @@ impl Loader {
         Ok(Some(pkg_info))
     }
 
-    fn get_import_list(&self, pkgroot: &str, pkg: &[ast::Module]) -> Vec<(String, ast::Pos)> {
-        let mut import_list = Vec::new();
-        for m in pkg {
-            for stmt in &m.body {
-                if let ast::Stmt::Import(import_spec) = &stmt.node {
-                    let mut import_spec = import_spec.clone();
-                    import_spec.path = kclvm_config::vfs::fix_import_path(
-                        pkgroot,
-                        &m.filename,
-                        import_spec.path.as_str(),
-                    );
-                    import_list.push((import_spec.path, stmt.pos().into()));
-                }
-            }
-        }
-        import_list
-    }
-
     fn get_pkg_kfile_list(&self, pkgroot: &str, pkgpath: &str) -> Result<Vec<String>, String> {
         // plugin pkgs
         if self.is_plugin_pkg(pkgpath) {