diff --git a/kclvm/tools/src/LSP/src/hover.rs b/kclvm/tools/src/LSP/src/hover.rs
index c4e90e926..a54ea2bac 100644
--- a/kclvm/tools/src/LSP/src/hover.rs
+++ b/kclvm/tools/src/LSP/src/hover.rs
@@ -64,7 +64,7 @@ pub(crate) fn hover(
                                 ));
                             }
                         }
-                        
+
                         let merged_doc = if !attrs.is_empty() {
                             format!("{}\n{}", rest_sign.clone(), attrs.join("\n"))
                         } else {
@@ -409,7 +409,10 @@ mod tests {
                     assert_eq!(s, "fn encode(value: str, encoding: str) -> str");
                 }
                 if let MarkedString::String(s) = vec[1].clone() {
-                    assert_eq!(s, "Encode the string `value` using the codec registered for encoding.");
+                    assert_eq!(
+                        s,
+                        "Encode the string `value` using the codec registered for encoding."
+                    );
                 }
             }
             _ => unreachable!("test error"),