fix: restore localized samples in tests (#749)

* fix: restore required localized examples

* style: fix formatting issues

crates/ecstore/src/erasure_coding/bitrot.rs

@@ -387,7 +387,7 @@ mod tests {
         }
         assert_eq!(n, data.len());
 
-        // 读
+        // Read
         let reader = bitrot_writer.into_inner();
         let reader = Cursor::new(reader.into_inner());
         let mut bitrot_reader = BitrotReader::new(reader, shard_size, HashAlgorithm::HighwayHash256);
@@ -433,7 +433,7 @@ mod tests {
             let res = bitrot_reader.read(&mut buf).await;
 
             if idx == count - 1 {
-                // 最后一个块，应该返回错误
+                // The last chunk should trigger an error
                 assert!(res.is_err());
                 assert_eq!(res.unwrap_err().kind(), std::io::ErrorKind::InvalidData);
                 break;

crates/ecstore/src/erasure_coding/erasure.rs

@@ -58,7 +58,7 @@ impl Clone for ReedSolomonEncoder {
         Self {
             data_shards: self.data_shards,
             parity_shards: self.parity_shards,
-            // 为新实例创建空的缓存，不共享缓存
+            // Create an empty cache for the new instance instead of sharing one
             encoder_cache: std::sync::RwLock::new(None),
             decoder_cache: std::sync::RwLock::new(None),
         }
@@ -947,7 +947,7 @@ mod tests {
             let block_size = 1024 * 1024; // 1MB block size
             let erasure = Erasure::new(data_shards, parity_shards, block_size);
 
-            // 创建2MB的测试数据，这样可以测试多个1MB块的处理
+            // Build 2 MB of test data so multiple 1 MB chunks are exercised
             let mut data = Vec::with_capacity(2 * 1024 * 1024);
             for i in 0..(2 * 1024 * 1024) {
                 data.push((i % 256) as u8);
@@ -961,7 +961,7 @@ mod tests {
                 data.len() / 1024
             );
 
-            // 编码数据
+            // Encode the data
             let start = std::time::Instant::now();
             let shards = erasure.encode_data(&data).unwrap();
             let encode_duration = start.elapsed();