test: add missing tests

1 files changed, 115 insertions, 0 deletions

diff --git a/src/keys.rs b/src/keys.rs
index 6c25681..10c9697 100644
--- a/src/keys.rs
+++ b/src/keys.rs
@@ -21,6 +21,7 @@ pub struct KeyPair {
 #[derive(Debug, Serialize)]
 pub struct JwkKey {
     pub kty: String,
+    #[serde(rename = "use")]
     pub use_: String,
     pub kid: String,
     pub alg: String,
@@ -152,3 +153,117 @@ impl KeyManager {
         });
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_key_manager_creation() {
+        let manager = KeyManager::new().expect("Failed to create key manager");
+        assert!(manager.get_current_key().is_some());
+        assert_eq!(manager.keys.len(), 1);
+    }
+
+    #[test]
+    fn test_key_generation() {
+        let mut manager = KeyManager::new().expect("Failed to create key manager");
+        let initial_key_count = manager.keys.len();
+        
+        let new_kid = manager.generate_new_key().expect("Failed to generate new key");
+        assert_eq!(manager.keys.len(), initial_key_count + 1);
+        assert_eq!(manager.current_key_id, Some(new_kid.clone()));
+        assert!(manager.get_key(&new_kid).is_some());
+    }
+
+    #[test]
+    fn test_jwks_generation() {
+        let manager = KeyManager::new().expect("Failed to create key manager");
+        let jwks = manager.get_jwks().expect("Failed to get JWKS");
+        
+        assert_eq!(jwks.keys.len(), 1);
+        let key = &jwks.keys[0];
+        assert_eq!(key.kty, "RSA");
+        assert_eq!(key.use_, "sig");
+        assert_eq!(key.alg, "RS256");
+        assert!(!key.n.is_empty());
+        assert!(!key.e.is_empty());
+        assert!(!key.kid.is_empty());
+    }
+
+    #[test]
+    fn test_key_rotation() {
+        let mut manager = KeyManager::new().expect("Failed to create key manager");
+        let original_kid = manager.current_key_id.clone().unwrap();
+        
+        manager.rotate_keys().expect("Failed to rotate keys");
+        
+        let new_kid = manager.current_key_id.clone().unwrap();
+        assert_ne!(original_kid, new_kid);
+        assert_eq!(manager.keys.len(), 2); // Should have both old and new keys
+        assert!(manager.get_key(&original_kid).is_some());
+        assert!(manager.get_key(&new_kid).is_some());
+    }
+
+    #[test]
+    fn test_should_rotate_new_key() {
+        let manager = KeyManager::new().expect("Failed to create key manager");
+        // New key should not need rotation
+        assert!(!manager.should_rotate());
+    }
+
+    #[test]
+    fn test_should_rotate_old_key() {
+        let mut manager = KeyManager::new().expect("Failed to create key manager");
+        
+        // Manually modify the current key's creation time to be old
+        if let Some(current_kid) = manager.current_key_id.clone() {
+            if let Some(key_pair) = manager.keys.get_mut(&current_kid) {
+                let old_time = SystemTime::now()
+                    .duration_since(UNIX_EPOCH)
+                    .unwrap()
+                    .as_secs() - 86401; // 1 day + 1 second ago
+                    
+                // We need to recreate the key pair with the old timestamp
+                let mut old_key_pair = key_pair.clone();
+                old_key_pair.created_at = old_time;
+                manager.keys.insert(current_kid, old_key_pair);
+            }
+        }
+        
+        // Should need rotation since key is older than rotation interval
+        assert!(manager.should_rotate());
+    }
+
+    #[test]
+    fn test_cleanup_old_keys() {
+        let mut manager = KeyManager::new().expect("Failed to create key manager");
+        let original_kid = manager.current_key_id.clone().unwrap();
+        
+        // Generate a new key (so we have 2 keys)
+        manager.rotate_keys().expect("Failed to rotate keys");
+        assert_eq!(manager.keys.len(), 2);
+        
+        // Cleanup with max_age 0 should remove old keys but keep current
+        manager.cleanup_old_keys(0);
+        assert_eq!(manager.keys.len(), 1);
+        assert!(manager.get_key(&original_kid).is_none());
+        assert!(manager.get_current_key().is_some());
+    }
+
+    #[test]
+    fn test_multiple_key_jwks() {
+        let mut manager = KeyManager::new().expect("Failed to create key manager");
+        manager.rotate_keys().expect("Failed to rotate keys");
+        manager.rotate_keys().expect("Failed to rotate keys");
+        
+        let jwks = manager.get_jwks().expect("Failed to get JWKS");
+        assert_eq!(jwks.keys.len(), 3); // Should have 3 keys
+        
+        // All keys should have unique key IDs
+        let mut kids: Vec<String> = jwks.keys.iter().map(|k| k.kid.clone()).collect();
+        kids.sort();
+        kids.dedup();
+        assert_eq!(kids.len(), 3); // All should be unique
+    }
+}