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'use strict'; require('../common'); const assert = require('assert'); const spawn = require('child_process').spawn; const child = spawn(process.execPath, [ '-i' ], { stdio: [null, null, 2] }); let stdout = ''; child.stdout.setEncoding('utf8'); child.stdout.on('data', function(c) { process.stdout.write(c); stdout += c; if (stdout.includes('> THROW 2')) child.stdin.end(); }); child.stdin.write = function(original) { return function(c) { process.stderr.write(c); return original.call(child.stdin, c); }; }(child.stdin.write); child.stdout.once('data', function() { child.stdin.write('let throws = 0;'); child.stdin.write('process.on("exit",function(){console.log(throws)});'); child.stdin.write('function thrower(){console.log("THROW",throws++);XXX};'); child.stdin.write('setTimeout(thrower);""\n'); setTimeout(fsTest, 50); function fsTest() { const f = JSON.stringify(__filename); child.stdin.write(`fs.readFile(${f}, thrower);\n`); setTimeout(eeTest, 50); } function eeTest() { child.stdin.write('setTimeout(function() {\n' + ' const events = require("events");\n' + ' let e = new events.EventEmitter;\n' + ' process.nextTick(function() {\n' + ' e.on("x", thrower);\n' + ' setTimeout(function() {\n' + ' e.emit("x");\n' + ' });\n' + ' });\n' + '});"";\n'); } }); child.on('close', function(c) { assert.strictEqual(c, 0); // Make sure we got 3 throws, in the end. const lastLine = stdout.trim().split(/\r?\n/).pop(); assert.strictEqual(lastLine, '> 3'); });