'use strict'; const common = require('../common'); const assert = require('assert'); const http = require('http'); const server = http.createServer(common.mustCall(function(req, res) { res.end('testing ended state', common.mustCall()); res.end(common.mustCall()); res.on('finish', common.mustCall(() => { res.end(common.mustCall((err) => { assert.strictEqual(err.code, 'ERR_STREAM_ALREADY_FINISHED'); server.close(); })); })); })); server.listen(0); server.on('listening', common.mustCall(function() { http .request({ port: server.address().port, method: 'GET', path: '/' }) .end(); }));