Added vulcanize under third_party/npm_modules

node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/graceful-fs/test/write-then-read.js

Index: node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/graceful-fs/test/write-then-read.js
diff --git a/node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/graceful-fs/test/write-then-read.js b/node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/graceful-fs/test/write-then-read.js
new file mode 100644
index 0000000000000000000000000000000000000000..3a3db54b0c8ce4a15e4694c9498b388630f081ef
--- /dev/null
+++ b/node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/graceful-fs/test/write-then-read.js
@@ -0,0 +1,45 @@
+var fs = require('../');
+var rimraf = require('rimraf');
+var mkdirp = require('mkdirp');
+var test = require('tap').test;
+var p = require('path').resolve(__dirname, 'files');
+
+// Make sure to reserve the stderr fd
+process.stderr.write('');
+
+var num = 4097;
+var paths = new Array(num);
+
+test('make files', function (t) {
+  rimraf.sync(p);
+  mkdirp.sync(p);
+
+  for (var i = 0; i < num; ++i) {
+    paths[i] = 'files/file-' + i;
+    fs.writeFileSync(paths[i], 'content');
+  }
+
+  t.end();
+})
+
+test('read files', function (t) {
+  // now read them
+  var done = 0;
+  for (var i = 0; i < num; ++i) {
+    fs.readFile(paths[i], function(err, data) {
+      if (err)
+        throw err;
+
+      ++done;
+      if (done === num) {
+        t.pass('success');
+        t.end()
+      }
+    });
+  }
+});
+
+test('cleanup', function (t) {
+  rimraf.sync(p);
+  t.end();
+});