From a4c02cc75901b5d5d482d1384003f445e3be83dc Mon Sep 17 00:00:00 2001
From: Michael Hamburg <mike@shiftleft.org>
Date: Tue, 23 May 2017 16:10:44 -0700
Subject: [PATCH] better test

---
 test/test_decaf.cxx | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/test/test_decaf.cxx b/test/test_decaf.cxx
index 99a827a..dd3a16e 100644
--- a/test/test_decaf.cxx
+++ b/test/test_decaf.cxx
@@ -600,12 +600,18 @@ static void run() {
 }; /* template<GroupId GROUP> struct Tests */
 
 static void test_xof() {
+    /* TODO: more testing of XOFs */
     Test test("XOF");
+    SpongeRng rng(Block("test_xof"),SpongeRng::DETERMINISTIC);
     
-    FixedArrayBuffer<1024> a,b;
+    FixedArrayBuffer<1024> a,b,c;
+    rng.read(c);
     
     SHAKE<128> s1, s2;
     unsigned i;
+    for (i=0; i<c.size(); i++) s1.update(c.slice(i,1));
+    s2.update(c);
+    
     for (i=0; i<a.size(); i++) s1.output(a.slice(i,1));
     s2.output(b);