getUnspentOutputs excludes spent outputs

src/wallet.js

@@ -64,7 +64,8 @@ var Wallet = function (seed, options) {
       var utxo = []
 
       for(var key in this.outputs){
-        utxo.push(outputToUnspentOutput(this.outputs[key]))
+        var output = this.outputs[key]
+        if(!output.spend) utxo.push(outputToUnspentOutput(output))
       }
 
       return utxo

test/wallet.js

@@ -171,16 +171,23 @@ describe('Wallet', function() {
     })
 
     describe('getUnspentOutputs', function(){
-      it('parses wallet outputs to the expect format', function(){
+      beforeEach(function(){
         wallet.outputs[expectedOutputKey] = {
           receive: expectedOutputKey,
           scriptPubKey: expectedUtxo[0].scriptPubKey,
           address: expectedUtxo[0].address,
           value: expectedUtxo[0].value
         }
+      })
 
+      it('parses wallet outputs to the expect format', function(){
         assert.deepEqual(wallet.getUnspentOutputs(), expectedUtxo)
       })
+
+      it('excludes spent outputs', function(){
+        wallet.outputs[expectedOutputKey].spend = "sometxn:m"
+        assert.deepEqual(wallet.getUnspentOutputs(), [])
+      })
     })
 
     describe('setUnspentOutputs', function(){