diff --git a/server/src/chunking/mod.rs b/server/src/chunking/mod.rs
index 4896046..1cce537 100644
--- a/server/src/chunking/mod.rs
+++ b/server/src/chunking/mod.rs
@@ -90,21 +90,27 @@ mod tests {
     /// Chunks and reconstructs a file.
     #[test]
     fn test_chunking_basic() {
-        block_on(async move {
-            let test_file = get_data(32 * 1024 * 1024); // 32 MiB
-            let mut reconstructed_file = Vec::new();
+        fn case(size: usize) {
+            block_on(async move {
+                let test_file = get_data(size); // 32 MiB
+                let mut reconstructed_file = Vec::new();
 
-            let cursor = Cursor::new(&test_file);
-            let mut chunks = chunk_stream(cursor, 8 * 1024, 16 * 1024, 32 * 1024);
+                let cursor = Cursor::new(&test_file);
+                let mut chunks = chunk_stream(cursor, 8 * 1024, 16 * 1024, 32 * 1024);
 
-            while let Some(chunk) = chunks.next().await {
-                let chunk = chunk.unwrap();
-                eprintln!("Got a {}-byte chunk", chunk.len());
-                reconstructed_file.extend(chunk);
-            }
+                while let Some(chunk) = chunks.next().await {
+                    let chunk = chunk.unwrap();
+                    eprintln!("Got a {}-byte chunk", chunk.len());
+                    reconstructed_file.extend(chunk);
+                }
 
-            assert_eq!(reconstructed_file, test_file);
-        });
+                assert_eq!(reconstructed_file, test_file);
+            });
+        }
+
+        case(32 * 1024 * 1024 - 1);
+        case(32 * 1024 * 1024);
+        case(32 * 1024 * 1024 + 1);
     }
 
     /// Returns some fake data.