added redeem script test

refactored the previous multi-sig address test a bit and added a test
to validate the # of signatures required and possible addresses
included in the redeemscript

test/script.js

@@ -25,30 +25,43 @@ describe('Script', function() {
   })
   
   describe('2-of-3 Multi-Signature', function() {
-    var compressedPubKeys = []
-    var numSigs
+    var compressedPubKeys = [];
+    var numSigs, script, multisig, network
 
     beforeEach(function() {
       compressedPubKeys = ['02ea1297665dd733d444f31ec2581020004892cdaaf3dd6c0107c615afb839785f',
                            '02fab2dea1458990793f56f42e4a47dbf35a12a351f26fa5d7e0cc7447eaafa21f',
                            '036c6802ce7e8113723dd92cdb852e492ebb157a871ca532c3cb9ed08248ff0e19']
                            
-      numSigs = 2;
+      numSigs = 2
     })
 
     it('should create valid multi-sig address', function() {
-      var network = 0x05 //mainnet
-      var script = Script.createMultiSigOutputScript(numSigs,compressedPubKeys.map(hexToBytes))
-      var multisig = sha256ripe160(script.buffer)
+      network = 0x05 //mainnet
+      script = Script.createMultiSigOutputScript(numSigs,compressedPubKeys.map(hexToBytes))
+      multisig = sha256ripe160(script.buffer)
       var multiSigAddress = Address(multisig,network).toString()
-      var redeemScript = bytesToHex(script.buffer)
      
       assert.ok(Address.validate(multiSigAddress))
       assert.equal(Address.getVersion(multiSigAddress),'0x05')
       assert.equal(multiSigAddress,'32vYjxBb7pHJJyXgNk8UoK3BdRDxBzny2v')
-      assert.equal(Address(sha256ripe160(hexToBytes(redeemScript)),network).toString(),
-        multiSigAddress)     
     })
-
+  
+    it('should create valid redeemScript', function() {
+      var redeemScript = script.buffer
+      var deserialized = new Script(redeemScript)
+      var numOfSignatures = deserialized.chunks[deserialized.chunks.length-2]-80
+      var signaturesRequired = deserialized.chunks[0]-80
+      var sigs = [bytesToHex(deserialized.chunks[1]), bytesToHex(deserialized.chunks[2]), 
+                  bytesToHex(deserialized.chunks[3])]
+      
+      assert.equal(numOfSignatures,3)
+      assert.equal(signaturesRequired,2)
+      assert.equal(sigs[0],'02ea1297665dd733d444f31ec2581020004892cdaaf3dd6c0107c615afb839785f')
+      assert.equal(sigs[1],'02fab2dea1458990793f56f42e4a47dbf35a12a351f26fa5d7e0cc7447eaafa21f')
+      assert.equal(sigs[2],'036c6802ce7e8113723dd92cdb852e492ebb157a871ca532c3cb9ed08248ff0e19')
+      assert.equal(Address(sha256ripe160(redeemScript),network).toString(),
+        '32vYjxBb7pHJJyXgNk8UoK3BdRDxBzny2v')
+    })
   })
 })