'use strict'; const common = require('../common'); const fs = require('fs'); common.expectWarning( 'DeprecationWarning', 'ReadStream.prototype.open() is deprecated', 'DEP0135'); const s = fs.createReadStream('asd') // We don't care about errors in this test. .on('error', () => {}); s.open(); process.nextTick(() => { // Allow overriding open(). fs.ReadStream.prototype.open = common.mustCall(); fs.createReadStream('asd'); });