Merge pull request input-output-hk#40 from input-output-hk/fix-issue-39

fix bug regarding `Wallet.fromSeed` where the seed length was not tested properly

Author: NicolasDP

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,
 };

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;
+    });
+});