Test in Chrome (--headless) with puppeteer

[bakhirev]

Task: run the tests locally, without installing browser. Config:

const puppeteer = require('puppeteer');
const pathChrome = puppeteer.executablePath();

module.exports = {
    rootUrl: 'http://localhost:3001/',
    gridUrl: 'http://127.0.0.1:4444/wd/hub',

    browsers: {
        chrome: {
            desiredCapabilities: {
                browserName: 'chrome',
                chromeOptions: {
                    args: ['--headless'],
                    binary: pathChrome,
                },
            },
        },
    },

    sets: {
        chrome: {
            files: [
                './tests'
            ],
            browsers: [
                'chrome',
            ],
        }
    },

    system: {
        exclude: [
            '**/stand/**/*.js',
            '**/reports/*.js',
        ],
        plugins: {
            'html-reporter': {
                enabled: true,
                path: '../reports',
                errorsOnly: true
            },
            ...
        },
        projectRoot: '.'
    }
}

Error in selenium:

INFO - To downstream: {"sessionId":"0af5e47f170acadc87d5322eedf145b4","status":13,"value":{"message":"unknown error: call function result missing 'value'\n  (Session info: headless chrome=65.0.3312.0)\n  (Driver info: chromedriver=2.33.506120 (e3e53437346286c0bc2d2dc9aa4915ba81d9023f),platform=Windows NT 10.0.16299 x86_64)"}}

In the report instead of screenshots be text:

Error: [execute("(function e(t,n,r)... {},[1]);\n")] Error response status: 13, ,
UnknownError - An unknown server-side error occurred while processing the command.
Selenium error: unknown error: call function result missing 'value'
  (Session info: headless chrome=65.0.3312.0)
  (Driver info: chromedriver=2.33.506120 (e3e53437346286c0bc2d2dc9aa4915ba81d9023f),platform=Windows NT 10.0.16299 x86_64)
    at exports.newError (C:\work\pleeco-fluent-kelp-autotests\test\node_modules\wd\lib\utils.js:139:13)
    at C:\work\pleeco-fluent-kelp-autotests\test\node_modules\wd\lib\callbacks.js:75:19
    at C:\work\pleeco-fluent-kelp-autotests\test\node_modules\wd\lib\webdriver.js:192:5
    at Request._callback (C:\work\pleeco-fluent-kelp-autotests\test\node_modules\wd\lib\http-utils.js:87:7)
    at Request.self.callback (C:\work\pleeco-fluent-kelp-autotests\test\node_modules\wd\node_modules\request\request.js:368:22)
    at emitTwo (events.js:126:13)
    at Request.emit (events.js:214:7)
    at Request.<anonymous> (C:\work\pleeco-fluent-kelp-autotests\test\node_modules\wd\node_modules\request\request.js:1219:14)
    at emitOne (events.js:121:20)
    at Request.emit (events.js:211:7)
    at IncomingMessage.<anonymous> (C:\work\pleeco-fluent-kelp-autotests\test\node_modules\wd\node_modules\request\request.js:1167:12)
    at emitNone (events.js:111:20)
    at IncomingMessage.emit (events.js:208:7)
    at endReadableNT (_stream_readable.js:1056:12)
    at _combinedTickCallback (internal/process/next_tick.js:138:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)

I think, this is after the call scripts:

C:\work\pleeco-fluent-kelp-autotests\test\node_modules\gemini\lib\browser\client-scripts\gemini.js

If I change this request in wd:

\node_modules\wd\lib\webdriver.js line: 185
let temp = JSON.parse(data);
temp.status = 0
data = JSON.stringify(temp);

The test will pass successfully. Screenshots will appear.

If I change path for full Chrome

module.exports = {
    rootUrl: 'http://localhost:3001/',
    gridUrl: 'http://127.0.0.1:4444/wd/hub',

    browsers: {
        chrome: {
            desiredCapabilities: {
                browserName: 'chrome',
                chromeOptions: {
                    args: ['--headless'],
                    binary: 'C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe',
                },

The test will pass successfully. Screenshots will appear.