diff --git a/src/history/add.rs b/src/history/add.rs
index 9d4fd24..45a13b1 100644
--- a/src/history/add.rs
+++ b/src/history/add.rs
@@ -40,14 +40,14 @@ mod tests {
         println!("about to add");
         add(
             &link,
-            &file_name,
+            file_name,
             &FileEnv::create(dir.path().to_string_lossy().to_string()),
         )?;
         println!("called add");
 
         //then
         println!("about to read file contents");
-        let content: Vec<String> = read_text_file(&dir.path(), &file_name)?;
+        let content: Vec<String> = read_text_file(dir.path(), file_name)?;
         println!("read file contents");
         drop(dir);
 
@@ -79,7 +79,7 @@ mod tests {
         )?;
 
         //then
-        let content: Vec<String> = read_text_file(&dir.path(), &file_name)?;
+        let content: Vec<String> = read_text_file(dir.path(), file_name)?;
         drop(dir);
 
         let expected = vec![
diff --git a/src/lib.rs b/src/lib.rs
index 937efe5..67ceced 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -87,18 +87,14 @@ mod tests {
                 open: mock_file_open(HashMap::from([
                     (
                         subs_file_name.to_string(),
-                        format!(
-                            "{}/{}",
-                            subs_dir.path().to_string_lossy(),
-                            subs_file_name.to_string()
-                        ),
+                        format!("{}/{}", subs_dir.path().to_string_lossy(), subs_file_name),
                     ),
                     (
                         history_file_name.to_string(),
                         format!(
                             "{}/{}",
                             history_dir.path().to_string_lossy(),
-                            history_file_name.to_string()
+                            history_file_name
                         ),
                     ),
                 ])),
@@ -107,7 +103,7 @@ mod tests {
         };
 
         //when
-        run(&subs_file_name, &history_file_name, site, env)?;
+        run(subs_file_name, history_file_name, site, env)?;
         //then
         drop(subs_dir);
         drop(history_dir);
diff --git a/src/test_utils.rs b/src/test_utils.rs
index a4e2b49..13569fd 100644
--- a/src/test_utils.rs
+++ b/src/test_utils.rs
@@ -20,7 +20,7 @@ pub fn create_text_file(name: &str, data: &[u8]) -> Result<TempDir> {
     let data = from_utf8(data)?;
     let dir = tempdir()?;
     let filename = format!("{}", &dir.path().join(name).display());
-    let file = File::create(&filename)?;
+    let file = File::create(filename)?;
     write!(&file, "{data}")?;
     Ok(dir)
 }