So siehts ganz gut aus !

node_modules/js-stringify/test/index.js

@@ -0,0 +1,17 @@
+'use strict';
+
+var assert = require('assert');
+var stringify = require('../');
+
+assert(stringify('foo') === '"foo"');
+assert(stringify('foo\u2028bar\u2029baz') === '"foo\\u2028bar\\u2029baz"');
+assert(stringify(new Date('2014-12-19T03:42:00.000Z')) === 'new Date("2014-12-19T03:42:00.000Z")');
+assert(stringify({foo: 'bar'}) === '{"foo":"bar"}');
+assert(stringify(undefined) === 'undefined');
+assert(stringify(null) === 'null');
+assert(
+  stringify({val: "</script><script>alert('bad actor')</script>"}) ===
+  '{"val":"\\u003C\\u002Fscript\\u003E\\u003Cscript\\u003Ealert(\'bad actor\')\\u003C\\u002Fscript\\u003E"}'
+);
+
+console.log('tests passed');