feat: add sync_once function

Author: jianggang

src/feature_probe.rs

@@ -446,7 +446,7 @@ mod tests {
 
 #[cfg(test)]
 mod server_sdk_contract_tests {
-    use crate::{FPDetail, FPError, FPUser, FeatureProbe, Repository, SyncType};
+    use crate::{FPDetail, FPError, FPUser, FeatureProbe, Repository};
     use serde::{Deserialize, Serialize};
     use serde_json::Value;
     use std::fmt::Debug;
@@ -521,7 +521,7 @@ mod server_sdk_contract_tests {
             println!("scenario: {}", scenario.scenario);
             assert!(!scenario.cases.is_empty());
             let fp = FeatureProbe::new_with("secret key".to_string(), scenario.fixture);
-            fp.sync_now(SyncType::Polling);
+
             for case in scenario.cases {
                 println!("  case: {}", case.name);
 

tests/integration_test.rs

@@ -35,7 +35,8 @@ async fn integration_test() {
     };
 
     let mut fp = FeatureProbe::new(config);
-
+    #[cfg(all(feature = "use_tokio", feature = "realtime"))]
+    fp.sync_now(SyncType::Polling);
     let did_update = {
         let did_update = Arc::new(Mutex::new((false, false)));
         let did_update_clone = did_update.clone();