Code refactoring

src/lib.rs

@@ -56,11 +56,13 @@ pub mod test_util {
         pub fn get_filename(track: i32) -> String {
             const FLAC_EXTENSION: &str = ".flac";
 
-            if track < 10 {
-                format!("track0{track}{FLAC_EXTENSION}")
+            let filename = if track < 10 {
+                format!("track0{}{}", track, FLAC_EXTENSION)
             } else {
-                format!("track{track}{FLAC_EXTENSION}")
-            }
+                format!("track{}{}", track, FLAC_EXTENSION)
+            };
+
+            filename
         }
     }
 }

src/meta.rs

@@ -275,6 +275,9 @@ pub mod metadata {
 
 #[cfg(test)]
 mod tests {
+
+    // use super::*;
+
     mod get {
         use super::super::metadata::get_meta;
         use crate::test_util::util;

src/properties.rs

@@ -1,5 +1,10 @@
 use lofty::file::AudioFile;
 
+#[derive(Debug, Default, Clone)]
+pub struct Duration {
+    pub val: i32,
+}
+
 pub fn get_duration(song_path: &String) -> Result<std::time::Duration, std::io::Error> {
     match std::fs::File::open(song_path) {
         Ok(mut content) => {

src/types.rs

@@ -32,6 +32,11 @@ impl MetadataType {
     }
 }
 
+#[derive(Debug)]
+pub enum Properties {
+    Duration,
+}
+
 pub fn all_metadata_types() -> Vec<Type> {
     vec![
         Type::Album,