fixed bugs, added more tests

dist/spritz.js

@@ -84,7 +84,7 @@ spritz._absorbByte = function _absorbByte(b, state) {
 
 spritz._absorbNibble = function _absorbNibble(x, state) {
     if (state.a === N_OVER_TWO_FLOOR){
-        spritz.shuffle(state);
+        spritz._shuffle(state);
     }
 
     util.swap(state.S, state.a, util.madd(N_OVER_TWO_FLOOR, x));

src/spritz.js

@@ -46,7 +46,7 @@ spritz._absorbByte = function _absorbByte(b, state) {
 
 spritz._absorbNibble = function _absorbNibble(x, state) {
     if (state.a === N_OVER_TWO_FLOOR){
-        spritz.shuffle(state);
+        spritz._shuffle(state);
     }
 
     util.swap(state.S, state.a, util.madd(N_OVER_TWO_FLOOR, x));
@@ -150,6 +150,9 @@ spritz.utf8ByteArrayToString = function utf8ByteArrayToString(utf8Array){
 };
 
 spritz.hash = function hash(M, r){
+    if(r > 255){
+        throw "cannot hash into more than 255 bytes";
+    }
     if(typeof M == 'string'){
         return spritz.hash(spritz.stringToUtf8ByteArray(M), r);
     }

test/utilSpec.js

@@ -43,6 +43,33 @@ describe('the hash function', function(){
         var expt = [2,143,162,180,139,147,74,24,98,184,105,16,81,58,71,103,124,28,45,149,236,62,117,112,120,111,28,50,139,189,74,71];
         assert.deepEqual(spritz.hash(M, r), expt);
     });
+
+    it('should be able to hash into big outputs', function(){
+        var M = 'key';
+        var r = 128;
+        var expt = [161,146,113,209,92,234,84,76,1,178];
+        assert.deepEqual(spritz.hash(M, r).splice(0, 10), expt);
+
+        r = 196;
+        expt = [70,186,211,241,183,79,116,6,36,178,244,78,18,13,72,203,248,160,165,201,59];
+        assert.deepEqual(spritz.hash(M, r).splice(0, expt.length), expt);
+
+
+    });
+
+    it('should be able to hash a big chunck of text', function(){
+        var message = "";
+        for(var i = 0; i < 1000; i++){
+            message += "key";
+        }
+        r = 196;
+        expt = [53,4,194,202,251,2,132,3,208,1,176,128,17,208,30,26,47,86,68,211,170];
+        assert.deepEqual(spritz.hash(message, r).splice(0, expt.length), expt);
+
+        r = 255;
+        expt = [148,179,139,174,155,47,98,51,153,231,105,247,132,230,146];
+        assert.deepEqual(spritz.hash(message, r).splice(0, expt.length), expt);
+    });
 });
 
 describe('the encrypt/decrypt function', function(){