From 3ec55597d4168493897a48bd450eccf677996e48 Mon Sep 17 00:00:00 2001
From: widberg <widberg@widberg.me>
Date: Sun, 5 Jul 2026 18:13:41 -0400
Subject: [PATCH] Byte perfect Ubisoft CPS

---
 bff/src/tsc/mqfel_settings_bin.rs             |  3 +++
 bff/tests/cps.rs                              | 19 +++++++------------
 ...ead_write_read.yaml => cps_roundtrip.yaml} |  0
 3 files changed, 10 insertions(+), 12 deletions(-)
 rename bff/tests/datasets/{cps_read_write_read.yaml => cps_roundtrip.yaml} (100%)

diff --git a/bff/src/tsc/mqfel_settings_bin.rs b/bff/src/tsc/mqfel_settings_bin.rs
index 3b74d62..5d3024b 100644
--- a/bff/src/tsc/mqfel_settings_bin.rs
+++ b/bff/src/tsc/mqfel_settings_bin.rs
@@ -140,6 +140,9 @@ fn compress_and_encrypt<W: Write>(decompressed_data: &[u8], writer: &mut W) -> B
     let decompressed_size = u32::try_from(decompressed_data.len()).unwrap();
 
     let mut compressed_data = Cursor::new(Vec::new());
+
+    // Won't match the original byte-for-byte
+    // It uses a different version or config than everything else
     lzo_compress(decompressed_data, &mut compressed_data)?;
 
     let mut payload_cursor = Cursor::new(compressed_data.into_inner());
diff --git a/bff/tests/cps.rs b/bff/tests/cps.rs
index 27f6ac7..fb63042 100644
--- a/bff/tests/cps.rs
+++ b/bff/tests/cps.rs
@@ -1,30 +1,25 @@
-use std::fs::File;
+use std::fs;
 use std::io::Cursor;
 
 use bff::Endian;
 use bff::names::{NameContext, NameType};
 use bff::tsc::{Cps, read_default_cps_names};
-use binrw::io::BufReader;
 
 use crate::path_helpers::resolve_repo_data_path;
 
-#[datatest::data("tests/datasets/cps_read_write_read.yaml")]
+#[datatest::data("tests/datasets/cps_roundtrip.yaml")]
 #[test]
-fn read_write_read(cps_path_str: String) {
+fn roundtrip(cps_path_str: String) {
     let cps_path = resolve_repo_data_path(&cps_path_str);
-    let f = File::open(cps_path).unwrap();
-    let mut reader = BufReader::new(f);
+    let data = fs::read(cps_path).unwrap();
+    let mut reader = Cursor::new(&data);
     let mut name_context = NameContext::new(NameType::BlackSheep32);
     read_default_cps_names(&mut name_context).unwrap();
     let cps = Cps::read(&mut reader, Endian::Little, &name_context).unwrap();
+
     let mut writer = Cursor::new(Vec::new());
     cps.write(&mut writer, Endian::Little, false, &mut name_context)
         .unwrap();
 
-    let mut reader = Cursor::new(writer.into_inner());
-    let mut name_context = NameContext::new(NameType::BlackSheep32);
-    read_default_cps_names(&mut name_context).unwrap();
-    let cps2 = Cps::read(&mut reader, Endian::Little, &name_context).unwrap();
-
-    assert!(cps == cps2);
+    assert!(data == writer.into_inner());
 }
diff --git a/bff/tests/datasets/cps_read_write_read.yaml b/bff/tests/datasets/cps_roundtrip.yaml
similarity index 100%
rename from bff/tests/datasets/cps_read_write_read.yaml
rename to bff/tests/datasets/cps_roundtrip.yaml