From 2d2171fdbc10462457dd4f6ad0a10ef4afa84607 Mon Sep 17 00:00:00 2001
From: Timo Hocker <t-hocker@web.de>
Date: Fri, 27 Mar 2020 09:15:32 +0100
Subject: [PATCH] fix mutant

---
 package.json  |  4 ++++
 test/index.js | 27 ++++++++++++++++++++++++++-
 yarn.lock     |  5 +++++
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index d1e45e5..2f8d5de 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
   "author": "Timo Hocker <t-hocker@web.de>",
   "license": "MIT",
   "devDependencies": {
+    "@scode/encoding-helper": "^1.0.10",
     "@scode/eslint-config": "^1.2.25",
     "@stryker-mutator/core": "^3.0.2",
     "@stryker-mutator/javascript-mutator": "^3.0.2",
@@ -19,5 +20,8 @@
   },
   "dependencies": {
     "argon2": "^0.26.1"
+  },
+  "engines": {
+    "node": ">=10.0.0"
   }
 }
diff --git a/test/index.js b/test/index.js
index cfcf394..f3c6761 100644
--- a/test/index.js
+++ b/test/index.js
@@ -5,18 +5,43 @@
  * Created by Timo Hocker <timo@scode.ovh>, March 2020
  */
 
+/* eslint-disable no-magic-numbers */
+
 'use strict';
 
 const helper = require ('../index');
+const argon2 = require ('argon2');
 const test = require ('ava');
+const encoding_helper = require ('@scode/encoding-helper');
+
+const required_options = {
+  hashLength: 64,
+  saltLength: 32,
+  type:       argon2.argon2id
+};
+const type_str = 'argon2id';
 
 test ('create hash', async (t) => {
   const hash = await helper.hash ('foo');
+  const regex = /\$(?<type>.*?)\$.*?\$.*?\$(?<salt>.*?)\$(?<hash>.*)/u;
+  const res = regex.exec (hash);
   t.is (typeof hash, 'string');
+  t.not (res, null);
+  t.is (res.groups.type, type_str);
+  t.is (
+    encoding_helper.to_hex (res.groups.salt, 'base64').length,
+    required_options.saltLength * 2
+  );
+  t.is (
+    encoding_helper.to_hex (res.groups.hash, 'base64').length,
+    required_options.hashLength * 2
+  );
+  t.is (await argon2.verify (hash, 'foo', required_options), true);
 });
 
 test ('validate', async (t) => {
-  const hash = await helper.hash ('foo');
+  // eslint-disable-next-line max-len
+  const hash = '$argon2id$v=19$m=4096,t=3,p=1$IxY4EsXRazKmYijrGMEKap6MWeSjVaBIKykCu2fzNwg$ffJ4aOJTITnakX5NXVTAVvQZFIrj47mKVDuqcStu6uw1Ouo0LfILHP9z3beaZscGGR5BXJZhUFlXSsdsi/4pOg';
   const valid = await helper.verify (hash, 'foo');
   t.is (valid, true);
 });
diff --git a/yarn.lock b/yarn.lock
index 139c783..ce89e4c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -257,6 +257,11 @@
   dependencies:
     safe-buffer "^5.1.2"
 
+"@scode/encoding-helper@^1.0.10":
+  version "1.0.10"
+  resolved "https://npm.scode.ovh/@scode%2fencoding-helper/-/encoding-helper-1.0.10.tgz#2a53fdf6230f86391887e06e2485a3f7e3db4fb4"
+  integrity sha512-aP4rcsnnOXty2riSz1IBTaLpZz0uCa/htbFEeAf0U+JQ6b7cHKd92YNDpImxkfHlVQAUplLWlK/Anxz7/ojupQ==
+
 "@scode/eslint-config@^1.2.25":
   version "1.2.30"
   resolved "https://npm.scode.ovh/@scode%2feslint-config/-/eslint-config-1.2.30.tgz#fa8c22dc62d3bcfa1a3e20a54f9b593e90fcec00"