From f6aa01c44572ffd22245ad7cc6b7a39d77be0a2c Mon Sep 17 00:00:00 2001
From: "Ryan X. Charles" <ryan@bitpay.com>
Date: Fri, 28 Mar 2014 18:07:23 -0400
Subject: [PATCH] add basic tests for all functions in Point

---
 bitcore.js         |  1 +
 browser/build.js   |  1 +
 test/test.Point.js | 69 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 71 insertions(+)
 create mode 100644 test/test.Point.js

diff --git a/bitcore.js b/bitcore.js
index 548b3d9..2831359 100644
--- a/bitcore.js
+++ b/bitcore.js
@@ -24,6 +24,7 @@ requireWhenAccessed('VersionedData', './util/VersionedData');
 requireWhenAccessed('BinaryParser', './util/BinaryParser');
 requireWhenAccessed('Address', './Address');
 requireWhenAccessed('BIP32', './BIP32');
+requireWhenAccessed('Point', './Point');
 requireWhenAccessed('Opcode', './Opcode');
 requireWhenAccessed('Script', './Script');
 requireWhenAccessed('Transaction', './Transaction');
diff --git a/browser/build.js b/browser/build.js
index 24efa9b..3969418 100644
--- a/browser/build.js
+++ b/browser/build.js
@@ -38,6 +38,7 @@ var modules = [
   'PrivateKey',
   'RpcClient',
   'Key',
+  'Point',
   'SIN',
   'SINKey',
   'Script',
diff --git a/test/test.Point.js b/test/test.Point.js
new file mode 100644
index 0000000..f7e3163
--- /dev/null
+++ b/test/test.Point.js
@@ -0,0 +1,69 @@
+'use strict';
+
+var assert = require('assert');
+var chai = chai || require('chai');
+var bitcore = bitcore || require('../bitcore');
+var coinUtil = coinUtil || require('../util/util');
+var buffertools = require('buffertools');
+var bignum = require('bignum');
+
+var should = chai.should();
+
+var Point = bitcore.Point;
+var Key = bitcore.Key;
+
+describe('Key', function() {
+
+  it('should initialize the main object', function() {
+    should.exist(Point);
+  });
+
+  it('should be able to create instance', function() {
+    var p = new Point();
+    should.exist(p);
+  });
+
+  it('should add these two points correctly', function() {
+    //these points are from one of the BIP32 test vectors
+    var axhex = "69b154b42ff9452c31251cb341d7db01ad603dc56d64f9c5fb9e7031b89a241d";
+    var ayhex = "eeedc91342b3c8982c1e676435780fe5f9d62f3f692e8d1512485d77fab35997";
+    var a = new Point(bignum.fromBuffer((new Buffer(axhex, 'hex')), {size: 32}), bignum.fromBuffer((new Buffer(ayhex, 'hex')), {size: 32}));
+    var bxhex = "5a784662a4a20a65bf6aab9ae98a6c068a81c52e4b032c0fb5400c706cfccc56";
+    var byhex = "7f717885be239daadce76b568958305183ad616ff74ed4dc219a74c26d35f839";
+    var b = new Point(bignum.fromBuffer((new Buffer(bxhex, 'hex')), {size: 32}), bignum.fromBuffer((new Buffer(byhex, 'hex')), {size: 32}));
+    var sxhex = "501e454bf00751f24b1b489aa925215d66af2234e3891c3b21a52bedb3cd711c";
+    var syhex = "008794c1df8131b9ad1e1359965b3f3ee2feef0866be693729772be14be881ab";
+    var s = new Point(bignum.fromBuffer((new Buffer(sxhex, 'hex')), {size: 32}), bignum.fromBuffer((new Buffer(syhex, 'hex')), {size: 32}));
+    var sum = Point.add(a, b);
+    s.x.toBuffer({size: 32}).toString('hex').should.equal(sum.x.toBuffer({size: 32}).toString('hex'));
+    s.y.toBuffer({size: 32}).toString('hex').should.equal(sum.y.toBuffer({size: 32}).toString('hex'));
+  });
+
+  it('should convert a Point into the public key of a Key', function() {
+    var axhex = "69b154b42ff9452c31251cb341d7db01ad603dc56d64f9c5fb9e7031b89a241d";
+    var axbuf = new Buffer(axhex, 'hex');
+    var ayhex = "eeedc91342b3c8982c1e676435780fe5f9d62f3f692e8d1512485d77fab35997";
+    var aybuf = new Buffer(ayhex, 'hex');
+    var a = new Point(bignum.fromBuffer(axbuf, {size: 32}), bignum.fromBuffer(aybuf, {size: 32}));
+
+    var pubKeyBufCompressedHex = "0369b154b42ff9452c31251cb341d7db01ad603dc56d64f9c5fb9e7031b89a241d";
+    var key = new Key();
+    key.public = new Buffer(pubKeyBufCompressedHex, 'hex');
+
+    key.public.toString('hex').should.equal(a.toKey().public.toString('hex'));
+  });
+
+  it('should convert the public key of a Key into a Point', function() {
+    var axhex = "69b154b42ff9452c31251cb341d7db01ad603dc56d64f9c5fb9e7031b89a241d";
+    var ayhex = "eeedc91342b3c8982c1e676435780fe5f9d62f3f692e8d1512485d77fab35997";
+
+    var pubKeyBufCompressedHex = "0369b154b42ff9452c31251cb341d7db01ad603dc56d64f9c5fb9e7031b89a241d";
+    var key = new Key();
+    key.public = new Buffer(pubKeyBufCompressedHex, 'hex');
+
+    var point = Point.fromKey(key);
+    point.x.toBuffer({size: 32}).toString('hex').should.equal(axhex);
+    point.y.toBuffer({size: 32}).toString('hex').should.equal(ayhex);
+  });
+
+});