fix: actor error trait tests

Author: tqwewe

src/actor.rs

@@ -66,15 +66,16 @@ pub use spawn::*;
 ///
 /// ```
 /// use kameo::actor::{Actor, ActorRef, WeakActorRef};
-/// use kameo::error::{ActorStopReason, BoxError};
+/// use kameo::error::{ActorStopReason, Infallible};
 /// use kameo::mailbox::unbounded::UnboundedMailbox;
 ///
 /// struct MyActor;
 ///
 /// impl Actor for MyActor {
 ///     type Mailbox = UnboundedMailbox<Self>;
+///     type Error = Infallible;
 ///
-///     async fn on_start(&mut self, actor_ref: ActorRef<Self>) -> Result<(), BoxError> {
+///     async fn on_start(&mut self, actor_ref: ActorRef<Self>) -> Result<(), Infallible> {
 ///         println!("actor started");
 ///         Ok(())
 ///     }
@@ -83,7 +84,7 @@ pub use spawn::*;
 ///         &mut self,
 ///         actor_ref: WeakActorRef<Self>,
 ///         reason: ActorStopReason,
-///     ) -> Result<(), BoxError> {
+///     ) -> Result<(), Infallible> {
 ///         println!("actor stopped");
 ///         Ok(())
 ///     }

src/actor/actor_ref.rs

@@ -177,16 +177,17 @@ where
     /// use std::time::Duration;
     ///
     /// use kameo::actor::{Actor, ActorRef};
-    /// use kameo::error::BoxError;
+    /// use kameo::error::Infallible;
     /// use kameo::mailbox::unbounded::UnboundedMailbox;
     /// use tokio::time::sleep;
     ///
     /// struct MyActor;
     ///
     /// impl Actor for MyActor {
     ///     type Mailbox = UnboundedMailbox<Self>;
+    ///     type Error = Infallible;
     ///
-    ///     async fn on_start(&mut self, actor_ref: ActorRef<Self>) -> Result<(), BoxError> {
+    ///     async fn on_start(&mut self, actor_ref: ActorRef<Self>) -> Result<(), Infallible> {
     ///         sleep(Duration::from_secs(2)).await; // Some io operation
     ///         Ok(())
     ///     }