Enable fastresume in tests

crates/librqbit/src/session_persistence/json.rs

@@ -221,6 +221,7 @@ impl BitVFactory for JsonSessionPersistenceStore {
             .write(true)
             .open(&filename)
             .with_context(|| format!("error opening {filename:?}"))?;
+        trace!(?filename, "stored initial check bitfield");
         Ok(MmapBitV::new(f)
             .with_context(|| format!("error constructing MmapBitV from file {filename:?}"))?
             .into_dyn())

crates/librqbit/src/tests/e2e.rs

@@ -191,6 +191,7 @@ async fn _test_e2e_download() {
                 persistence: Some(SessionPersistenceConfig::Json {
                     folder: Some(session_persistence),
                 }),
+                fastresume: true,
                 listen_port_range: None,
                 enable_upnp_port_forwarding: false,
                 root_span: Some(error_span!("client")),