improved error msg for ActorSpawnHandle::await_unwrap

src/actor/actor.rs

@@ -314,6 +314,11 @@ impl ActorSpawnHandle {
     /// spawn_handle.await_ready().unwrap()
     /// ```
     pub fn await_unwrap(&self) -> ActorAddress {
+        let res = self.await_ready();
+        // If there is an error, panic with a descriptive message of what went wrong
+        if let Err(e) = res {
+            panic!("Failed while waiting for actor spawn: {}", e);
+        }
         self.await_ready().unwrap()
     }
 }

src/error.rs

@@ -1,3 +1,5 @@
+use std::fmt::Display;
+
 /// Error type for all errors originating from library actions
 #[derive(Debug)]
 pub enum BusanError {
@@ -6,3 +8,11 @@ pub enum BusanError {
     /// a user focused explanation of the specific error cause.
     UnassignableActor(String),
 }
+
+impl Display for BusanError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            BusanError::UnassignableActor(s) => write!(f, "Actor is unassignable: {}", s),
+        }
+    }
+}