add shapes decompression test

LICENSE

@@ -1,3 +1,7 @@
+Some of the data contained in tests/data and benches/data is
+Copyright © Bungie Software. I do not own them, but am permitted to
+redistribute them. Everything else is:
+
 To the extent possible under law, I, Alison Sanderson, have waived all
 copyright and related or neighboring rights to this Document as described by
 the Creative Commons Zero license as follows:

tests/defl.rs

@@ -22,6 +22,16 @@ fn defl_alice()
    assert_eq!(defl::load_deflate(b).unwrap().1, OUT.to_vec());
 }
 
+#[test]
+fn defl_shapes()
+{
+   const INPUT:  &[u8] = include_bytes!("data/Shapes.in");
+   const OUTPUT: &[u8] = include_bytes!("data/Shapes.out");
+
+   let b = &INPUT[defl::load_gzip_header(INPUT).unwrap()..];
+   assert_eq!(defl::load_deflate(b).unwrap().1, OUTPUT.to_vec());
+}
+
 #[test]
 fn defl_must_succeed()
 {