convenience: Stealth(payloadKeypair, scanKeypair)

lib/expmt/stealthkey.js

@@ -6,11 +6,20 @@ var Hash = require('../hash');
 var KDF = require('../kdf');
 var base58check = require('../base58check');
 
-var Stealthkey = function Stealthkey(obj) {
+var Stealthkey = function Stealthkey(payloadKeypair, scanKeypair) {
   if (!(this instanceof Stealthkey))
-    return new Stealthkey(obj);
-  if (obj)
+    return new Stealthkey(payloadKeypair, scanKeypair);
+
+  if (payloadKeypair instanceof Keypair) {
+    this.set({
+      payloadKeypair: payloadKeypair,
+      scanKeypair: scanKeypair
+    });
+  }
+  else if (payloadKeypair) {
+    var obj = payloadKeypair;
     this.set(obj);
+  }
 };
 
 Stealthkey.prototype.set = function(obj) {

test/stealthkey.js

@@ -36,6 +36,14 @@ describe('Stealthkey', function() {
     should.exist(stealthkey);
   });
 
+  it('should create a new stealthkey with both keypairs in the constructor', function() {
+    var keypair1 = Keypair();
+    var keypair2 = Keypair();
+    var stealthkey = Stealthkey(keypair1, keypair2);
+    should.exist(stealthkey.payloadKeypair);
+    should.exist(stealthkey.scanKeypair);
+  });
+
   describe('#set', function() {
 
     it('should set payload key', function() {