use to_string method for ChunkId instead of format! macro

3 files changed, 6 insertions, 6 deletions

diff --git a/src/bin/obnam-server.rs b/src/bin/obnam-server.rs
index 40ea400..3adf2eb 100644
--- a/src/bin/obnam-server.rs
+++ b/src/bin/obnam-server.rs
@@ -174,7 +174,7 @@ impl warp::Reply for ChunkResult {
         match self {
             ChunkResult::Created(id) => {
                 let body = CreatedBody {
-                    chunk_id: format!("{}", id),
+                    chunk_id: id.to_string(),
                 };
                 let body = serde_json::to_string(&body).unwrap();
                 let mut r = warp::reply::Response::new(body.into());
diff --git a/src/chunkid.rs b/src/chunkid.rs
index ba301a1..44a76d6 100644
--- a/src/chunkid.rs
+++ b/src/chunkid.rs
@@ -57,9 +57,9 @@ mod test {
     use super::ChunkId;
 
     #[test]
-    fn displayable() {
+    fn to_string() {
         let id = ChunkId::new();
-        assert_ne!(format!("{}", id), "")
+        assert_ne!(id.to_string(), "")
     }
 
     #[test]
@@ -73,13 +73,13 @@ mod test {
     fn recreatable() {
         let id_str = "xyzzy"; // it doesn't matter what the string representation is
         let id: ChunkId = id_str.parse().unwrap();
-        assert_eq!(format!("{}", id), id_str);
+        assert_eq!(id.to_string(), id_str);
     }
 
     #[test]
     fn survives_round_trip() {
         let id = ChunkId::new();
-        let id_str = format!("{}", id);
+        let id_str = id.to_string();
         assert_eq!(id, id_str.parse().unwrap());
     }
 }
diff --git a/src/server.rs b/src/server.rs
index 7498050..8d1eed0 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -47,7 +47,7 @@ pub struct SearchHits {
 
 impl SearchHits {
     pub fn insert(&mut self, id: ChunkId, meta: ChunkMeta) {
-        self.map.insert(format!("{}", id), meta);
+        self.map.insert(id.to_string(), meta);
     }
 
     pub fn from_json(s: &str) -> anyhow::Result<Self> {