tests: Remove needless vec

taiki-e · Jan 30, 2025 · 8174770 · 8174770
1 parent fb528c9
commit 8174770
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/tests/auxiliary/mod.rs b/tests/auxiliary/mod.rs
@@ -184,11 +184,11 @@ const INSTR_PROF_RAW_MAGIC_64: u64 = (255_u64 << 56)
     | 129_u64;
 
 fn perturb_header(path: &Path) {
-    let mut file = fs::OpenOptions::new().read(true).write(true).open(path).unwrap();
+    let mut file = fs::OpenOptions::new().read(true).write(true).open(path).unwrap(); // Not buffered because it is read and written only once each.
     let mut magic = {
-        let mut buf = vec![0_u8; mem::size_of::<u64>()];
+        let mut buf = [0_u8; mem::size_of::<u64>()];
         file.read_exact(&mut buf).unwrap();
-        u64::from_ne_bytes(buf.try_into().unwrap())
+        u64::from_ne_bytes(buf)
     };
     assert_eq!(magic, INSTR_PROF_RAW_MAGIC_64);
     magic += 1;