Function load_rejects_wrong_magic

native/shared/src/sdf_cache.rs:262–273

()

    #[test]
    fn load_rejects_wrong_magic() {
        let Some(dir) = cache_dir() else { return; };
        let _ = fs::create_dir_all(&dir);
        let h = MeshHash(0xbad_0_bad_1);
        let p = dir.join(h.to_filename());
        // Hand-write a file with the wrong magic.
        let mut bad = vec![0u8; 16 + VOXEL_BYTES];
        bad[..6].copy_from_slice(b"NOTBLM");
        std::fs::write(&p, &bad).unwrap();
        assert!(load(h).is_none());
        let _ = fs::remove_file(p);
    }
}