From fa54ba4f82a7280bcd924a33de0e6952fff42b7d Mon Sep 17 00:00:00 2001
From: Daniel Cousens <github@dcousens.com>
Date: Wed, 10 Aug 2016 11:43:48 +1000
Subject: [PATCH] tests/transaction: add test for target Buffer

---
 test/transaction.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/test/transaction.js b/test/transaction.js
index d11ab29..b17dbf8 100644
--- a/test/transaction.js
+++ b/test/transaction.js
@@ -67,6 +67,24 @@ describe('Transaction', function () {
         assert.strictEqual(actual.toHex(), f.hex, actual.toHex())
       })
     })
+
+    it('accepts target Buffer and offset parameters', function () {
+      var f = fixtures.valid[0]
+      var actual = fromRaw(f.raw)
+      var byteLength = actual.byteLength()
+
+      var target = new Buffer(byteLength * 2)
+      var a = actual.toBuffer(target, 0)
+      var b = actual.toBuffer(target, byteLength)
+
+      assert.strictEqual(a.length, byteLength)
+      assert.strictEqual(b.length, byteLength)
+      assert.strictEqual(a.toString('hex'), f.hex)
+      assert.strictEqual(b.toString('hex'), f.hex)
+      assert.deepEqual(a, b)
+      assert.deepEqual(a, target.slice(0, byteLength))
+      assert.deepEqual(b, target.slice(byteLength))
+    })
   })
 
   describe('addInput', function () {