Change MessageId to u32 instead of String.

src/client.rs

@@ -69,7 +69,7 @@ pub enum Request {
     GetPitch,
     SetVolume(ClientScope, i8),
     GetVolume,
-    SetPauseContext(ClientScope, u16),
+    SetPauseContext(ClientScope, u32),
     SetNotification(NotificationType, bool),
     // Blocks
     Begin,
@@ -305,6 +305,7 @@ impl<S: Read + Write + Source> Client<S> {
             Request::HistoryCursorGet => panic!("not implemented"),
             Request::HistoryCursorSet(_scope, _pos) => panic!("not implemented"),
             Request::HistoryCursorMove(_direction) => panic!("not implemented"),
+            Request::HistorySpeak(_id) => panic!("not implemented"),
             Request::HistorySort(_direction, _key) => panic!("not implemented"),
             Request::HistorySetShortMsgLength(_length) => panic!("not implemented"),
             Request::HistorySetMsgTypeOrdering(_ordering) => panic!("not implemented"),

src/types.rs

@@ -18,7 +18,7 @@ use strum_macros::Display as StrumDisplay;
 pub type ReturnCode = u16;
 
 /// Message identifier
-pub type MessageId = String;
+pub type MessageId = u32;
 
 /// Client identifier
 pub type ClientId = String;
@@ -549,9 +549,6 @@ mod tests {
     fn format_message_scope() {
         assert_eq!("self", format!("{}", MessageScope::Last).as_str());
         assert_eq!("all", format!("{}", MessageScope::All).as_str());
-        assert_eq!(
-            "123",
-            format!("{}", MessageScope::Message("123".to_string())).as_str()
-        );
+        assert_eq!("123", format!("{}", MessageScope::Message(123)).as_str());
     }
 }

tests/fifo_sync_tests.rs

@@ -81,7 +81,7 @@ fn say_one_line() -> ClientResult<()> {
         ],
         |client| {
             assert_eq!(
-                "21",
+                21,
                 client
                     .speak()
                     .unwrap()
@@ -374,7 +374,7 @@ fn receive_notification() -> ClientResult<()> {
         ],
         |client| {
             assert_eq!(
-                "21",
+                21,
                 client
                     .speak()
                     .unwrap()