'use strict'; const common = require('../common'); const fs = require('fs'); { const s = fs.createReadStream(__filename); s.close(common.mustCall()); s.close(common.mustCall()); } { const s = fs.createReadStream(__filename); // this is a private API, but it is worth esting. close calls this s.destroy(null, common.mustCall()); s.destroy(null, common.mustCall()); }