Open of unknown wallet should return proper error

Signed-off-by: Darko Kulic <[email protected]>

Author: dkulic

libindy/src/services/wallet/mod.rs

@@ -265,7 +265,11 @@ impl WalletService {
 
         let mut descriptor_json = String::new();
         let descriptor: WalletDescriptor = WalletDescriptor::from_json({
-            let mut file = File::open(_wallet_descriptor_path(name))?; // FIXME: Better error!
+            let wallet_descriptor_path = _wallet_descriptor_path(name);
+            if !wallet_descriptor_path.exists() {
+                return Err(WalletError::NotFound("Wallet descriptor path does not exist.".to_string()));
+            }
+            let mut file = File::open(_wallet_descriptor_path(name))?;
             file.read_to_string(&mut descriptor_json)?;
             descriptor_json.as_str()
         })?;
@@ -914,6 +918,15 @@ mod tests {
         wallet_service.open_wallet("test_wallet", None, &_credentials()).unwrap();
     }
 
+    #[test]
+    fn wallet_service_open_unknown_wallet() {
+        _cleanup();
+
+        let wallet_service = WalletService::new();
+        let res = wallet_service.open_wallet("test_wallet_unknown", None, &_credentials());
+        assert_match!(Err(WalletError::NotFound(_)), res);
+    }
+
     #[test]
     fn wallet_service_open_wallet_without_master_key_in_credentials_returns_error() {
         _cleanup();