add test imported from treasure

test/test.Script.js

@@ -107,4 +107,27 @@ describe('Script', function() {
     });
   });
 
+  // Original test from https://github.com/ryanxcharles/treasure
+  var testPubKeysHex = [
+    '02c525d65d18be8fb36ab50a21bee02ac9fdc2c176fa18791ac664ea4b95572ae0',
+    '02b937d54b550a3afdc2819772822d25869495f9e588b56a0205617d80514f0758',
+    '0266dd7664e65958f3cc67bf92ad6243bc495df5ab56691719263977104b635bea',
+    '02ee91377073b04d1d9d19597b81a7be3db6554bd7d16151cb5599a6107a589e70',
+    '02c8f63ad4822ef360b5c300f08488fa0fa24af2b2bebb6d6b602ca938ee5af793'
+    ];
+
+  describe('#_sortKeys', function() {
+    it('should get the pubkeys in properly sorted order', function() {
+      var pubs = testPubKeysHex.map( function(hex) { 
+        return new Buffer(hex,'hex');
+      });
+      var sorted = Script._sortKeys(pubs);
+      sorted[0].toString('hex').should.equal(testPubKeysHex[2]);
+      sorted[1].toString('hex').should.equal(testPubKeysHex[1]);
+      sorted[2].toString('hex').should.equal(testPubKeysHex[0]);
+      sorted[3].toString('hex').should.equal(testPubKeysHex[4]);
+      sorted[4].toString('hex').should.equal(testPubKeysHex[3]);
+    });
+  });
+
 });