diff --git a/tests/macbin.in b/tests/macbin.in
new file mode 100644
index 0000000..748a709
Binary files /dev/null and b/tests/macbin.in differ
diff --git a/tests/machdr.rs b/tests/machdr.rs
new file mode 100644
index 0000000..bd8ed5e
--- /dev/null
+++ b/tests/machdr.rs
@@ -0,0 +1,14 @@
+use maraiah::marathon::machdr::*;
+
+// TODO: missing test data for applesingle
+
+#[test]
+fn macbin_must_process_this()
+{
+   assert_eq!(  check_macbin(INPUT_MACBIN), Some(128));
+   assert_eq!(try_mac_header(INPUT_MACBIN), 128);
+}
+
+const INPUT_MACBIN: &'static [u8] = include_bytes!("macbin.in");
+
+// EOF