approximate round trip test

src/main.rs

@@ -10,7 +10,7 @@ enum Error{
 	Io(std::io::Error),
 	BotFile{
 		path:PathBuf,
-		err:v0::Error
+		err:RoundTripError,
 	},
 	Join(tokio::task::JoinError),
 }
@@ -24,6 +24,14 @@ impl From<tokio::task::JoinError> for Error{
 		Self::Join(value)
 	}
 }
+#[expect(dead_code)]
+#[derive(Debug)]
+enum RoundTripError{
+	Decode(v0::Error),
+	Encode(strafesnet_roblox_bot_file::BinrwError),
+	RoundTripDecode(v0::Error),
+	NotEqual,
+}
 #[tokio::main]
 async fn main()->Result<(),Error>{
     const PREFETCH_QUEUE:usize=64;
@@ -82,7 +90,25 @@ async fn main()->Result<(),Error>{
 	.buffer_unordered(PREFETCH_QUEUE)
 	.map(|result:Result<_,Error>|async move{
 		let (path,file)=result?;
-		let result=tokio::task::spawn_blocking(||v0::read_all_to_block(std::io::Cursor::new(file))).await?;
+		let result=tokio::task::spawn_blocking(move||{
+			let block=v0::read_all_to_block(std::io::Cursor::new(file.as_slice())).map_err(RoundTripError::Decode)?;
+			let mut data=Vec::with_capacity(file.len()+1024);
+			v0::serialize(&block,&mut std::io::Cursor::new(&mut data)).map_err(RoundTripError::Encode)?;
+			let block_rt=v0::read_all_to_block(std::io::Cursor::new(data)).map_err(RoundTripError::RoundTripDecode)?;
+			if !(
+				block_rt.input_events.len()==block.input_events.len()&&
+				block_rt.output_events.len()==block.output_events.len()&&
+				block_rt.sound_events.len()==block.sound_events.len()&&
+				block_rt.world_events.len()==block.world_events.len()&&
+				block_rt.gravity_events.len()==block.gravity_events.len()&&
+				block_rt.run_events.len()==block.run_events.len()&&
+				block_rt.camera_events.len()==block.camera_events.len()&&
+				block_rt.setting_events.len()==block.setting_events.len()
+			){
+				return Err(RoundTripError::NotEqual);
+			}
+			Ok(block)
+		}).await?;
 		match result{
 			Err(err)=>Err(Error::BotFile{path,err}),
 			Ok(block)=>Ok((path,block)),