text: import assert from 'assert';
  import FileSender from '../../../app/fileSender';
  import Archive from '../../../app/archive';
  
  // FileSender uses a File in real life but a Blob works for testing
  const blob = new Blob(['hello world!'], { type: 'text/plain' });
  blob.name = 'text.txt';
  const archive = new Archive([blob]);
  
  describe('FileSender', function() {
    describe('upload', function() {
      it('returns an OwnedFile on success', async function() {
        const fs = new FileSender();
        const file = await fs.upload(archive);
        assert.ok(file.id);
        assert.equal(file.name, archive.name);
      });
    });
  });
  