diff --git a/test/data/unspends.json b/test/data/unspent.json
similarity index 100%
rename from test/data/unspends.json
rename to test/data/unspent.json
diff --git a/test/data/unspentSign.json b/test/data/unspentSign.json
new file mode 100644
index 000000000..ce2fa6971
--- /dev/null
+++ b/test/data/unspentSign.json
@@ -0,0 +1,34 @@
+{ 
+  "unspent": [
+    {
+      "address": "n4g2TFaQo8UgedwpkYdcQFF6xE2Ei9Czvy",
+      "txid": "2ac165fa7a3a2b535d106a0041c7568d03b531e58aeccdd3199d7289ab12cfc1",
+      "scriptPubKey": "76a9146ce4e1163eb18939b1440c42844d5f0261c0338288ac",
+      "vout": 1,
+      "amount": 1.01,
+      "confirmations":7
+    },
+    {
+      "address": "mhNCT9TwZAGF1tLPpZdqfkTmtBkY282YDW",
+      "txid": "2ac165fa7a3a2b535d106a0041c7568d03b531e58aeccdd3199d7289ab12cfc2",
+      "scriptPubKey": "76a9146ce4e1163eb18939b1440c42844d5f0261c0338288ad",
+      "vout": 0,
+      "confirmations": 1,
+      "amount": 10
+    },
+    {
+      "address": "n44hn28zAooZpn8mpWKzATbabqaHDK9oNJ",
+      "txid": "2ac165fa7a3a2b535d106a0041c7568d03b531e58aeccdd3199d7289ab12cfc3",
+      "scriptPubKey": "76a9146ce4e1163eb18939b1440c42844d5f0261c0338288ae",
+      "vout": 3,
+      "confirmations": 0,
+      "amount": 5
+    }
+  ],
+  "keyStrings": [
+    "cSq7yo4fvsbMyWVN945VUGUWMaSazZPWqBVJZyoGsHmNq6W4HVBV",
+    "cPa87VgwZfowGZYaEenoQeJgRfKW6PhZ1R65EHTkN1K19cSvc92G",
+    "cPQ9DSbBRLva9av5nqeF5AGrh3dsdW8p2E5jS4P8bDWZAoQTeeKB"
+  ]
+}
+
diff --git a/test/test.Transaction.js b/test/test.Transaction.js
index 835b918bb..926bf1a74 100644
--- a/test/test.Transaction.js
+++ b/test/test.Transaction.js
@@ -35,17 +35,17 @@ describe('Transaction', function() {
 
 
   it('#_selectUnspent should be able to select utxos', function() {
-    var u = Transaction._selectUnspent(testdata.dataUnspends,1.0);
+    var u = Transaction._selectUnspent(testdata.dataUnspent,1.0);
     u.length.should.equal(3);
-    u = Transaction._selectUnspent(testdata.dataUnspends,0.5);
+    u = Transaction._selectUnspent(testdata.dataUnspent,0.5);
     u.length.should.equal(3);
-    u = Transaction._selectUnspent(testdata.dataUnspends,0.1);
+    u = Transaction._selectUnspent(testdata.dataUnspent,0.1);
     u.length.should.equal(2);
-    u = Transaction._selectUnspent(testdata.dataUnspends,0.05);
+    u = Transaction._selectUnspent(testdata.dataUnspent,0.05);
     u.length.should.equal(2);
-    u = Transaction._selectUnspent(testdata.dataUnspends,0.015);
+    u = Transaction._selectUnspent(testdata.dataUnspent,0.015);
     u.length.should.equal(2);
-    u = Transaction._selectUnspent(testdata.dataUnspends,0.01);
+    u = Transaction._selectUnspent(testdata.dataUnspent,0.01);
     u.length.should.equal(1);
     should.exist(u[0].amount);
     should.exist(u[0].txid);
@@ -54,27 +54,27 @@ describe('Transaction', function() {
   });
 
   it('#selectUnspent should return null if not enough utxos', function() {
-    var u = Transaction.selectUnspent(testdata.dataUnspends,1.12);
+    var u = Transaction.selectUnspent(testdata.dataUnspent,1.12);
     u.length.should.equal(0);
   });
 
 
   it('#selectUnspent should check confirmations', function() {
-    var u = Transaction.selectUnspent(testdata.dataUnspends,0.9);
+    var u = Transaction.selectUnspent(testdata.dataUnspent,0.9);
     u.length.should.equal(0);
-    var u = Transaction.selectUnspent(testdata.dataUnspends,0.9,true);
+    var u = Transaction.selectUnspent(testdata.dataUnspent,0.9,true);
     u.length.should.equal(3);
 
-    var u = Transaction.selectUnspent(testdata.dataUnspends,0.11);
+    var u = Transaction.selectUnspent(testdata.dataUnspent,0.11);
     u.length.should.equal(2);
-    var u = Transaction.selectUnspent(testdata.dataUnspends,0.111);
+    var u = Transaction.selectUnspent(testdata.dataUnspent,0.111);
     u.length.should.equal(0);
   });
 
 
   var opts = {remainderAddress: 'mwZabyZXg8JzUtFX1pkGygsMJjnuqiNhgd'};
   it('#create should be able to create instance', function() {
-    var utxos = Transaction.selectUnspent(testdata.dataUnspends,0.1);
+    var utxos = Transaction.selectUnspent(testdata.dataUnspent,0.1);
     var outs = [{address:'mrPnbY1yKDBsdgbHbS7kJ8GVm8F66hWHLE', amount:0.08}];
     var tx = Transaction.create(utxos, outs, opts);
     should.exist(tx);
@@ -83,13 +83,13 @@ describe('Transaction', function() {
     tx.ins.length.should.equal(2);
     tx.outs.length.should.equal(2);
     util.valueToBigInt(tx.outs[0].v).cmp(8000000).should.equal(0);
-    // remainder is 0.0299 here because unspend select utxos in order
+    // remainder is 0.0299 here because unspent select utxos in order
     util.valueToBigInt(tx.outs[1].v).cmp(2990000).should.equal(0);
   });
 
 
   it('#create should fail if not enough inputs ', function() {
-    var utxos = Transaction.selectUnspent(testdata.dataUnspends,1);
+    var utxos = Transaction.selectUnspent(testdata.dataUnspent,1);
     var outs = [{address:'mrPnbY1yKDBsdgbHbS7kJ8GVm8F66hWHLE', amount:0.08}];
     Transaction
       .create
@@ -99,7 +99,7 @@ describe('Transaction', function() {
 
 
   it('#create should create same output as bitcoind createrawtransaction ', function() {
-    var utxos = Transaction.selectUnspent(testdata.dataUnspends,0.1);
+    var utxos = Transaction.selectUnspent(testdata.dataUnspent,0.1);
     var outs = [{address:'mrPnbY1yKDBsdgbHbS7kJ8GVm8F66hWHLE', amount:0.08}];
     var tx = Transaction.create(utxos, outs, opts); 
 
@@ -117,7 +117,7 @@ describe('Transaction', function() {
   });
  
   it.skip('#sign should sign a tx', function() {
-    var utxos = Transaction.selectUnspent(testdata.dataUnspends,0.1);
+    var utxos = Transaction.selectUnspent(testdata.dataUnspentign.unspent,0.1);
     var outs = [{address:'mrPnbY1yKDBsdgbHbS7kJ8GVm8F66hWHLE', amount:0.08}];
     var tx = Transaction.create(utxos, outs, opts); 
   });
diff --git a/test/testdata.js b/test/testdata.js
index 6eef35a58..6460c235e 100644
--- a/test/testdata.js
+++ b/test/testdata.js
@@ -7,7 +7,8 @@ var dataTxValid = JSON.parse(fs.readFileSync('test/data/tx_valid.json'));
 var dataTxInvalid = JSON.parse(fs.readFileSync('test/data/tx_invalid.json'));
 var dataScriptValid = JSON.parse(fs.readFileSync('test/data/script_valid.json'));
 var dataScriptInvalid = JSON.parse(fs.readFileSync('test/data/script_invalid.json'));
-var dataUnspends = JSON.parse(fs.readFileSync('test/data/unspends.json'));
+var dataUnspent = JSON.parse(fs.readFileSync('test/data/unspent.json'));
+var dataUnspentSign = JSON.parse(fs.readFileSync('test/data/unspentSign.json'));
  
 
 module.exports.dataValid = dataValid;
@@ -18,4 +19,5 @@ module.exports.dataTxInvalid = dataTxInvalid;
 module.exports.dataScriptValid = dataScriptValid;
 module.exports.dataScriptInvalid = dataScriptInvalid;
 module.exports.dataScriptAll = dataScriptValid.concat(dataScriptInvalid);
-module.exports.dataUnspends = dataUnspends;
+module.exports.dataUnspent = dataUnspent;
+module.exports.dataUnspentSign = dataUnspentSign;