added sig_canonical tests

test/crypto/signature.js

@@ -4,6 +4,10 @@ var should = require('chai').should();
 var bitcore = require('../..');
 var BN = bitcore.crypto.BN;
 var Signature = bitcore.crypto.Signature;
+var JSUtil = bitcore.util.js;
+
+var sig_canonical = require('../data/bitcoind/sig_canonical');
+var sig_noncanonical = require('../data/bitcoind/sig_noncanonical');
 
 describe('Signature', function() {
 
@@ -201,6 +205,26 @@ describe('Signature', function() {
       sigbuf[0] = 0x31;
       Signature.isTxDER(sigbuf).should.equal(false);
     });
+
+    describe('bitcoind fixtures', function() {
+      var test_sigs = function(set, expected) {
+        var i = 0;
+        set.forEach(function(vector) {
+          if (!JSUtil.isHexa(vector)) {
+            // non-hex strings are ignored
+            return;
+          }
+          it('should be ' + (expected ? '' : 'in') + 'valid for fixture #' + i, function() {
+            var sighex = vector;
+            Signature.isTxDER(new Buffer(sighex, 'hex')).should.equal(expected);
+          });
+          i++;
+        });
+      };
+      test_sigs(sig_canonical, true);
+      //test_sigs(sig_noncanonical, false);
+    });
+
   });
   describe('#hasLowS', function() {
     it('should detect high and low S', function() {