[Tests] use safer-buffer instead of Buffer constructor

https://github.com/ChALkeR/safer-buffer/blob/master/Porting-Buffer.md#variant-2 / nodejs/node#19079

package.json

@@ -24,16 +24,18 @@
   },
   "dependencies": {},
   "devDependencies": {
+    "@ljharb/eslint-config": "^6.0.0",
     "browserify": "^13.0.1",
-    "tape": "^4.6.0",
     "covert": "^1.1.0",
-    "mkdirp": "^0.5.1",
     "eslint": "^3.1.0",
-    "@ljharb/eslint-config": "^6.0.0",
-    "parallelshell": "^2.0.0",
+    "evalmd": "^0.0.17",
     "iconv-lite": "^0.4.13",
-    "qs-iconv": "^1.0.3",
-    "evalmd": "^0.0.17"
+    "mkdirp": "^0.5.1",
+    "parallelshell": "^2.0.0",
+    "qs-iconv": "^1.0.4",
+    "safe-publish-latest": "^1.1.1",
+    "safer-buffer": "^2.0.2",
+    "tape": "^4.6.3"
   },
   "scripts": {
     "pretest": "npm run --silent readme && npm run --silent lint",

test/parse.js

@@ -3,6 +3,7 @@
 var test = require('tape');
 var qs = require('../');
 var iconv = require('iconv-lite');
+var SaferBuffer = require('safer-buffer').Buffer;
 
 test('parse()', function (t) {
     t.test('parses a simple string', function (st) {
@@ -221,7 +222,7 @@ test('parse()', function (t) {
     });
 
     t.test('parses buffers correctly', function (st) {
-        var b = new Buffer('test');
+        var b = SaferBuffer.from('test');
         st.deepEqual(qs.parse({ a: b }), { a: b });
         st.end();
     });
@@ -501,7 +502,7 @@ test('parse()', function (t) {
                     result.push(parseInt(parts[1], 16));
                     last = parts.index + parts[0].length;
                 }
-                return iconv.decode(new Buffer(result), 'shift_jis').toString();
+                return iconv.decode(SaferBuffer.from(result), 'shift_jis').toString();
             }
         }), { 県: '大阪府' });
         st.end();

test/stringify.js

@@ -3,6 +3,7 @@
 var test = require('tape');
 var qs = require('../');
 var iconv = require('iconv-lite');
+var SaferBuffer = require('safer-buffer').Buffer;
 
 test('stringify()', function (t) {
     t.test('stringifies a querystring object', function (st) {
@@ -193,8 +194,8 @@ test('stringify()', function (t) {
     });
 
     t.test('stringifies buffer values', function (st) {
-        st.equal(qs.stringify({ a: new Buffer('test') }), 'a=test');
-        st.equal(qs.stringify({ a: { b: new Buffer('test') } }), 'a%5Bb%5D=test');
+        st.equal(qs.stringify({ a: SaferBuffer.from('test') }), 'a=test');
+        st.equal(qs.stringify({ a: { b: SaferBuffer.from('test') } }), 'a%5Bb%5D=test');
         st.end();
     });
 
@@ -288,10 +289,8 @@ test('stringify()', function (t) {
         st.end();
     });
 
-    t.test('can use custom encoder for a buffer object', {
-        skip: typeof Buffer === 'undefined'
-    }, function (st) {
-        st.equal(qs.stringify({ a: new Buffer([1]) }, {
+    t.test('can use custom encoder for a buffer object', { skip: typeof Buffer === 'undefined' }, function (st) {
+        st.equal(qs.stringify({ a: SaferBuffer.from([1]) }, {
             encoder: function (buffer) {
                 if (typeof buffer === 'string') {
                     return buffer;