From 760d30c270d33ce414d3e3be3ade15b836e8407c Mon Sep 17 00:00:00 2001
From: Nicolas Di Prima <nicolas.diprima@iohk.io>
Date: Wed, 31 Oct 2018 15:20:21 +0000
Subject: [PATCH 1/2] add test to show what is happening with issue #39

---
 js/tests/from-seed.js | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 js/tests/from-seed.js

diff --git a/js/tests/from-seed.js b/js/tests/from-seed.js
new file mode 100644
index 0000000..2b5e6f7
--- /dev/null
+++ b/js/tests/from-seed.js
@@ -0,0 +1,24 @@
+const expect = require('chai').expect;
+const CardanoCrypto = require('../../dist/index.js');
+
+const SEED = Array(32).fill(0);
+
+describe('Wallet FromSeed', async function() {
+    let xprv = null;
+    let wallet = null;
+    let account = null;
+
+    before(async () => {
+        await CardanoCrypto.loadRustModule()
+    });
+
+    it("check seed size", function() {
+        expect(SEED.length).equals(CardanoCrypto.HdWallet.SEED_SIZE);
+    });
+    it("create a wallet", function() {
+        const result  = CardanoCrypto.Wallet.fromSeed(SEED);
+        console.log(result);
+        expect(result.failed).equals(false);
+        wallet = result.result;
+    });
+});

From 5d4528d79556cb25782effa72e8be93a60f309ca Mon Sep 17 00:00:00 2001
From: Nicolas Di Prima <nicolas.diprima@iohk.io>
Date: Wed, 31 Oct 2018 15:19:39 +0000
Subject: [PATCH 2/2] fix the issue where we compare the SEED.length to
 undefined

fix #39
---
 js/HdWallet.js | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/js/HdWallet.js b/js/HdWallet.js
index 838a877..e5e3437 100644
--- a/js/HdWallet.js
+++ b/js/HdWallet.js
@@ -3,10 +3,10 @@ import RustModule from './RustModule';
 import { newArray, newArray0, copyArray } from './utils/arrays';
 import { apply } from './utils/functions';
 
-const SEED_SIZE = 32;
-const XPRV_SIZE = 96;
-const XPUB_SIZE = 64;
-const SIGNATURE_SIZE = 64;
+export const SEED_SIZE = 32;
+export const XPRV_SIZE = 96;
+export const XPUB_SIZE = 64;
+export const SIGNATURE_SIZE = 64;
 
 
 /**
@@ -167,5 +167,9 @@ export default {
   derivePublic: apply(derivePublic, RustModule),
   sign: apply(sign, RustModule),
   publicKeyToAddress: apply(publicKeyToAddress, RustModule),
-  addressGetPayload: apply(addressGetPayload, RustModule)
+  addressGetPayload: apply(addressGetPayload, RustModule),
+  SEED_SIZE: SEED_SIZE,
+  XPRV_SIZE: XPRV_SIZE,
+  XPUB_SIZE: XPUB_SIZE,
+  SIGNATURE_SIZE: SIGNATURE_SIZE,
 };