test(lib_core): it saves and return tasks

refs: #5

lib_sync_core/src/tasks.rs

@@ -1,5 +1,4 @@
 use chrono::Utc;
-use futures::StreamExt;
 use serde::de::DeserializeOwned;
 use serde::Serialize;
 use std::fmt::Display;
@@ -35,15 +34,11 @@ impl Display for TaskStatus {
     }
 }
 
-pub trait TaskPayloadKey {
-    fn get_key(&self) -> String;
-}
-
 pub trait TaskPayload:
-    Serialize + DeserializeOwned + Send + Unpin + 'static + Display + TaskPayloadKey
+    Serialize + DeserializeOwned + Send + Unpin + 'static
 {
 }
-impl<T: Serialize + DeserializeOwned + Send + Unpin + 'static + Display + TaskPayloadKey>
+impl<T: Serialize + DeserializeOwned + Send + Unpin + 'static>
     TaskPayload for T
 {
 }
@@ -64,6 +59,19 @@ pub struct Task<T: TaskPayload> {
     updated_at: Option<chrono::DateTime<Utc>>,
 }
 
+impl<T: TaskPayload> Task<T> {
+    pub fn new(payload_key: String, payload: T, status: TaskStatus) -> Self {
+       Self {
+           id: 0,
+           payload_key,
+           payload,
+           status,
+           created_at: Default::default(),
+           updated_at: None,
+       }
+    }
+}
+
 impl<T: TaskPayload> Task<T> {
     pub fn payload(&self) -> &T {
         &self.payload