1 files changed, 45 insertions, 2 deletions
diff --git a/azalea-nbt/tests/decode.rs b/azalea-nbt/tests/decode.rs
index f4060512..2c69745b 100644
--- a/azalea-nbt/tests/decode.rs
+++ b/azalea-nbt/tests/decode.rs
@@ -1,8 +1,15 @@
 use azalea_nbt::Tag;
-use std::collections::HashMap;
+use flate2::{
+    read::{GzDecoder, ZlibDecoder},
+    write::{GzEncoder, ZlibEncoder},
+};
+use std::{
+    collections::HashMap,
+    io::{Cursor, Read},
+};
 
 #[test]
-fn test_hello_world() {
+fn test_decode_hello_world() {
     // read hello_world.nbt
     let mut file = std::fs::File::open("tests/hello_world.nbt").unwrap();
     let tag = Tag::read(&mut file).unwrap();
@@ -17,3 +24,39 @@ fn test_hello_world() {
         )]))
     );
 }
+
+#[test]
+fn test_roundtrip_hello_world() {
+    let mut file = std::fs::File::open("tests/hello_world.nbt").unwrap();
+    let mut original = Vec::new();
+    file.read_to_end(&mut original).unwrap();
+
+    let mut original_stream = Cursor::new(original.clone());
+    let tag = Tag::read(&mut original_stream).unwrap();
+
+    println!("ok read {:?}", tag);
+
+    // write hello_world.nbt
+    let mut result = Cursor::new(Vec::new());
+    tag.write(&mut result).unwrap();
+
+    assert_eq!(result.into_inner(), original);
+}
+
+#[test]
+fn test_bigtest() {
+    // read bigtest.nbt
+    let mut file = std::fs::File::open("tests/bigtest.nbt").unwrap();
+    let mut original = Vec::new();
+    file.read_to_end(&mut original).unwrap();
+
+    let mut original_stream = Cursor::new(original.clone());
+    let original_tag = Tag::read_gzip(&mut original_stream).unwrap();
+
+    let mut result = Vec::new();
+    original_tag.write(&mut result).unwrap();
+
+    let decoded_tag = Tag::read(&mut Cursor::new(result)).unwrap();
+
+    assert_eq!(decoded_tag, original_tag);
+}