Add unit tests for role middleware

node_modules/formidable/src/plugins/octetstream.js

@@ -0,0 +1,84 @@
+/* eslint-disable no-underscore-dangle */
+
+import OctetStreamParser from '../parsers/OctetStream.js';
+
+export const octetStreamType = 'octet-stream';
+// the `options` is also available through the `options` / `formidable.options`
+export default async function plugin(formidable, options) {
+  // the `this` context is always formidable, as the first argument of a plugin
+  // but this allows us to customize/test each plugin
+
+  /* istanbul ignore next */
+  const self = this || formidable;
+
+  if (/octet-stream/i.test(self.headers['content-type'])) {
+    await init.call(self, self, options);
+  }
+  return self;
+}
+
+// Note that it's a good practice (but it's up to you) to use the `this.options` instead
+// of the passed `options` (second) param, because when you decide
+// to test the plugin you can pass custom `this` context to it (and so `this.options`)
+async function init(_self, _opts) {
+  this.type = octetStreamType;
+  const originalFilename = this.headers['x-file-name'];
+  const mimetype = this.headers['content-type'];
+
+  const thisPart = {
+    originalFilename,
+    mimetype,
+  };
+  const newFilename = this._getNewName(thisPart);
+  const filepath = this._joinDirectoryName(newFilename);
+  const file = await this._newFile({
+    newFilename,
+    filepath,
+    originalFilename,
+    mimetype,
+  });
+
+  this.emit('fileBegin', originalFilename, file);
+  file.open();
+  this.openedFiles.push(file);
+  this._flushing += 1;
+
+  this._parser = new OctetStreamParser(this.options);
+
+  // Keep track of writes that haven't finished so we don't emit the file before it's done being written
+  let outstandingWrites = 0;
+
+  this._parser.on('data', (buffer) => {
+    this.pause();
+    outstandingWrites += 1;
+
+    file.write(buffer, () => {
+      outstandingWrites -= 1;
+      this.resume();
+
+      if (this.ended) {
+        this._parser.emit('doneWritingFile');
+      }
+    });
+  });
+
+  this._parser.on('end', () => {
+    this._flushing -= 1;
+    this.ended = true;
+
+    const done = () => {
+      file.end(() => {
+        this.emit('file', 'file', file);
+        this._maybeEnd();
+      });
+    };
+
+    if (outstandingWrites === 0) {
+      done();
+    } else {
+      this._parser.once('doneWritingFile', done);
+    }
+  });
+
+  return this;
+}