it('should report IO errors', done => {
      const inputPath = path.join(__dirname, './fixtures/test.coffee');
      const inputBase = path.join(__dirname, './fixtures/');
      const expectedPath = path.join(__dirname, './out-fixtures/test.coffee');
      const expectedContents = fs.readFileSync(inputPath);
      const expectedCwd = __dirname;
      const expectedBase = path.join(__dirname, './out-fixtures');
      const expectedMode = parseInt("0722", 8);

      const expectedFile = new File({
         base: inputBase,
         cwd: __dirname,
         path: inputPath,
         contents: expectedContents,
         stat: {
            mode: expectedMode
         } as fs.Stats
      });

      fs.mkdirSync(expectedBase);
      fs.chmodSync(expectedBase, 0);

      const stream = vfs.symlink('./out-fixtures/', { cwd: __dirname });
      stream.on('error', (err: any) => {
         err.code.should.equal('EACCES');
         done();
      });
      stream.write(expectedFile);
   });

export = () => {
	return vfs.src( 'node_modules' )
		.pipe( vfs.symlink( Config.DEV_DEST ) );
};