wallet: do not delete pending incoming tx from outputs

src/wallet.js

@@ -175,7 +175,13 @@ function Wallet(seed, network) {
 
       var output = txinId + ':' + txIn.index
 
-      if(me.outputs[output]) delete me.outputs[output]
+      if (!(output in me.outputs)) return
+
+      if (isPending) {
+        return me.outputs[output].pending = true
+      }
+
+      delete me.outputs[output]
     })
   }
 

test/wallet.js

@@ -264,12 +264,35 @@ describe('Wallet', function() {
     })
 
     describe("processPendingTx", function(){
-      it("sets the pending flag on output", function(){
+      it("incoming: sets the pending flag on output", function(){
         wallet.addresses = [addresses[0]]
         wallet.processPendingTx(tx)
 
         verifyOutputAdded(0, true)
       })
+
+      describe("when tx ins outpoint contains a known txhash:i", function(){
+        var spendTx
+        beforeEach(function(){
+          wallet.addresses = [addresses[0]]
+          wallet.processConfirmedTx(tx)
+
+          spendTx = Transaction.fromHex(fixtureTx2Hex)
+        })
+
+        it("outgoing: sets the pending flag on output instead of deleting it", function(){
+          var txIn = spendTx.ins[0]
+          var txInId = new Buffer(txIn.hash)
+          Array.prototype.reverse.call(txInId)
+          txInId = txInId.toString('hex')
+
+          var key = txInId + ':' + txIn.index
+          assert(!wallet.outputs[key].pending)
+
+          wallet.processPendingTx(spendTx)
+          assert(wallet.outputs[key].pending)
+        })
+      })
     })
 
     describe('processConfirmedTx', function(){