Wire iOS media downloads through session bridge

crates/tele-core/src/session.rs

@@ -942,7 +942,8 @@ mod tests {
             .build();
         let client = FakeTdClient::new()
             .with_message(chat_id.as_i64(), message)
-            .with_downloaded_file(77, "/tmp/photo.jpg");
+            .with_downloaded_file(77, "/tmp/photo.jpg")
+            .with_downloaded_file(88, "/tmp/voice.ogg");
         let mut session = CoreSession::new(client);
 
         session
@@ -960,8 +961,10 @@ mod tests {
             .await
             .unwrap();
         let downloaded = session.download_photo(77).await.unwrap();
+        let downloaded_voice = session.download_voice(88).await.unwrap();
 
         assert_eq!(downloaded.path, "/tmp/photo.jpg");
+        assert_eq!(downloaded_voice.path, "/tmp/voice.ogg");
         assert_eq!(session.client().get_forwarded_messages().len(), 1);
         assert_eq!(
             reactions,

crates/tele-core/src/test_support/fake_tdclient_impl.rs

@@ -308,7 +308,7 @@ impl FileClient for FakeTdClient {
     }
 
     async fn download_voice_note(&self, file_id: i32) -> Result<String, String> {
-        Ok(format!("/tmp/fake_voice_{}.ogg", file_id))
+        FakeTdClient::download_file(self, file_id).await
     }
 }