diff --git a/src/parser/mod.rs b/src/parser/mod.rs
index 45332a6..ef221dc 100644
--- a/src/parser/mod.rs
+++ b/src/parser/mod.rs
@@ -41,7 +41,11 @@ impl NumberParser {
         }
     }
 
-    pub async fn save_file(&self, numbers: Vec<textsender_models::contact::Contact>, filename: &str) {
+    pub async fn save_file(
+        &self,
+        numbers: Vec<textsender_models::contact::Contact>,
+        filename: &str,
+    ) {
         // let filename = String::from("numbers.json");
         match serde_json::to_string(&numbers) {
             Ok(json_string) => match std::fs::write(&filename, json_string) {
@@ -167,6 +171,7 @@ impl NumberParser {
     }
 }
 
+#[cfg(test)]
 mod tests {
     use textsender_models::contact::Contact;
 
@@ -174,14 +179,14 @@ mod tests {
 
     #[test]
     fn test_file_dump() {
-        let filename = String::from(TEST_NUMBERS_0);
         let file_exists = {
-            let path = std::path::Path::new(filename.as_str());
+            let path = std::path::Path::new(TEST_NUMBERS_0);
             path.exists()
         };
 
-        assert_eq!(true, file_exists, "File does not exists {filename:?}");
+        assert_eq!(true, file_exists, "File does not exists {TEST_NUMBERS_0:?}");
 
+        let filename = String::from(TEST_NUMBERS_0);
         let prsr = super::NumberParser { filepath: filename };
         let original: Vec<Contact> = vec![
             Contact {
@@ -222,8 +227,10 @@ mod tests {
             Ok(contacts) => {
                 assert!((contacts.len() > 0), "No contacts has been parsed");
 
-                let phone_numbers_1: std::collections::HashSet<_> = contacts.iter().map(|p| p.phone_number.clone()).collect();
-                let phone_numbers_2: std::collections::HashSet<_> = original.iter().map(|p| p.phone_number.clone()).collect();
+                let phone_numbers_1: std::collections::HashSet<_> =
+                    contacts.iter().map(|p| p.phone_number.clone()).collect();
+                let phone_numbers_2: std::collections::HashSet<_> =
+                    original.iter().map(|p| p.phone_number.clone()).collect();
                 assert_eq!(phone_numbers_1, phone_numbers_2, "No match");
             }
             Err(err) => {
@@ -234,9 +241,9 @@ mod tests {
 
     #[test]
     fn test_save_file() {
-        let filename = String::from(TEST_NUMBERS_0);
-
-        let prsr = super::NumberParser { filepath: filename };
+        let prsr = super::NumberParser {
+            filepath: String::from(TEST_NUMBERS_0),
+        };
         let results = async_std::task::block_on(prsr.file_dump());
         assert!(results.is_ok(), "File dump not successful");
         let test_output_file: &str = "test-numbers.json";
@@ -244,7 +251,7 @@ mod tests {
         let contacts = results.unwrap();
         async_std::task::block_on(prsr.save_file(contacts, test_output_file));
         let file_exists = {
-            let path = std::path::Path::new("numbers.json");
+            let path = std::path::Path::new(test_output_file);
             path.exists()
         };