1'use strict'; 2const common = require('../common'); 3const assert = require('assert'); 4const http = require('http'); 5 6const server = http.createServer(); 7 8assert.strictEqual(server.listening, false); 9 10server.listen(0, common.mustCall(() => { 11 assert.strictEqual(server.listening, true); 12 13 server.close(common.mustCall(() => { 14 assert.strictEqual(server.listening, false); 15 })); 16})); 17