// Copyright 2019 Google LLC

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

// http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

'use strict';

const execa = require('execa');

const {describe, it} = require('mocha');

describe('trace samples', () => {

it('should run the quickstart', done => {

// select a random port between 49152 and 65535

const PORT = Math.floor(Math.random() * (65535 - 49152)) + 49152;

const proc = execa('node', ['app.js'], {

env: {

PORT,

},

});

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

// Listen to stdout and look for messages. If we get a `Press CTRL+...`

// assume the process started. Wait a second to make sure there

// is no stderr output signifying something may have gone wrong.

message = message.toString('utf8');

if (/Press Ctrl/.test(message)) {

setTimeout(() => {

proc.kill();

done();

}, 1000);

}

});

proc.stderr.on('data', message => {

// if anything comes through stderr, assume a bug

done(new Error(message.toString('utf8')));

});

});

});