'use strict';

const common = require('../common');

common.skipIfInspectorDisabled();

const assert = require('assert');

const fixtures = require('../common/fixtures');

const spawn = require('child_process').spawn;

const proc = spawn(process.execPath, [

'inspect', fixtures.path('debugger', 'alive.js'),

]);

proc.stdout.setEncoding('utf8');

const TIMEOUT = common.platformTimeout(10_000);

let output = '';

let promptSeen = false;

(async () => {

await new Promise((resolve, reject) => {

const timer = setTimeout(() => {

proc.kill();

reject(new Error(`Timed out waiting for the debugger prompt; output: ${output}`));

}, TIMEOUT);

proc.stdout.on('data', (data) => {

output += data;

if (output.includes('debug> ') && !promptSeen) {

promptSeen = true;

proc.stdin.end('.exit\n');

}

});

proc.once('error', reject);

proc.once('close', common.mustCall((code, signal) => {

clearTimeout(timer);

if (!promptSeen) {

reject(new Error(

`Debugger exited before showing the prompt (code ${code}, signal ${signal}); ` +

`output: ${output}`));

return;

}

assert.strictEqual(code, 0);

resolve();

}));

});

})().then(common.mustCall());