Get help with testing, discuss unit testing strategies etc.

Post by stenjo »

Have been trying to find if anyone else has had the same issue, but have had no luck so far.
I'm running unittests in a docker container using a ubuntu image.
Siesta 5.5.1 is installed and seems to be running.

Trying to run tests gives this result:

2021-04-13_15-50-00.png (14.32 KiB) Viewed 764 times

That is, running:

root@5f633c56c5e8:/home/pp/wellcom-mono/ProjectPlannerUI# ../sdk/siesta/bin/webdriver localhost/tests/unittests-no-ui.html?onserver=1 --browser chrome --pause 0 --headless


[ERROR] Setup failed: Error: Can't create first page, runner: a Siesta.Launcher.Runner.WebDriverNodeJS, exception: WebDriverError: unknown error: Chrome failed to start: exited abnormally.
  (unknown error: DevToolsActivePort file doesn't exist)
  (The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)

I know google-chrome is available and runnable - but later changes to chrome does not allow for running headless from root. May this be the cause, or are there other options?

Chrome is installed and available in path;

whereis google-chrome
google-chrome: /usr/bin/google-chrome
google-chrome --headless
[0413/] Running as root without --no-sandbox is not supported. See
google-chrome --headless --no-sandbox
[0413/] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
[0413/] Cannot create Pref Service with no user data dir.

Post by nickolay »


It might be possible that there's a mismatch between the installed Chrome and ChromeDriver version. Those versions need to match. Please try downloading the matching version of ChromeDriver from and place the binaries to the /siesta/bin/binary/chromedriver

Post by nickolay »

You can check the ChromeDriver version with siesta/bin/binary/chromedriver/linux64/chromedriver --version

Post by stenjo »

root@5f633c56c5e8:/home/pp/wellcom-mono/ProjectPlannerUI# google-chrome --version
Google Chrome 89.0.4389.114 
root@5f633c56c5e8:/home/pp/wellcom-mono/ProjectPlannerUI# ../sdk/siesta/bin/binary/chromedriver/linux64/chromedriver --version
ChromeDriver 89.0.4389.23 (61b08ee2c50024bab004e48d2b1b083cdbdac579-refs/branch-heads/4389@{#294})

Sufficiently equal? Still failing the same way

Post by nickolay »

Yes, should be sufficiently equal.

Can you try with puppeteer launcher? If Chrome really fails to start in the container it should also fail..

Perhaps this line is the rootcause:

[0413/] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory

May be no dbus package in the container?

Post by stenjo »

Created a test file test.js containing:

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto('localhost/tests');
  await page.screenshot({ path: 'example.png' });

  await browser.close();
root@5f633c56c5e8:/home/pp/wellcom-mono/ProjectPlannerUI# node test.js 
(node:260) UnhandledPromiseRejectionWarning: Error: Failed to launch the browser process!
[0413/] Running as root without --no-sandbox is not supported. See


at onClose (/home/pp/wellcom-mono/ProjectPlannerUI/node_modules/puppeteer/lib/cjs/puppeteer/node/BrowserRunner.js:193:20)
at Interface.helper_js_1.helper.addEventListener (/home/pp/wellcom-mono/ProjectPlannerUI/node_modules/puppeteer/lib/cjs/puppeteer/node/BrowserRunner.js:183:68)
at Interface.emit (events.js:203:15)
at Interface.close (readline.js:397:8)
at Socket.onend (readline.js:173:10)
at Socket.emit (events.js:203:15)
at endReadableNT (_stream_readable.js:1145:12)
at process._tickCallback (internal/process/next_tick.js:63:19)
(node:260) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:260) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Post by nickolay »

Yup, something with the Chrome prerequisites I guess

Post by stenjo »

In spite of heavy googling, I have not been successful in solving the issue with dbus. Might be some chrome prerequisites, but really difficult to debug (that is: have had no success).
Your suggestion on running puppeteer inspired me to try that path as well:
Running in github actions:

##[debug]Loading env
Run chmod a+x ../sdk/siesta/bin/puppeteer
  chmod a+x ../sdk/siesta/bin/puppeteer
  chmod a+x ../sdk/siesta/bin/binary/nodejs/linux64/node
  # ../sdk/siesta/bin/puppeteer --browser chrome --pause 0 --headless
  shell: /usr/bin/bash -e {0}
    _JAVA_OPTIONS: -Xms512m -Xmx1512m -XX:-UseGCOverheadLimit
    JAVA_HOME: /opt/hostedtoolcache/Java_Zulu_jdk/12.0.2-3/x64
##[debug]Overwrite 'working-directory' base on job defaults.
##[debug]/usr/bin/bash -e /home/runner/work/_temp/

[ERROR] The project page you are targeting contains Siesta Lite distribution. To use automation facilities, 
make sure project page uses `siesta-all.js` from Standard or Trial packages
[ERROR] Setup failed: Error: Error while opening project page: 5
Error: Process completed with exit code 5.
##[debug]Finishing: Run tests on SchedulerUI

Have tried to find out of this error - what does it mean?

Post by nickolay »

Hm.. Perhaps you could start with some docker container that already has Chrome? May be there's "official" container for Chrome?

Anyway, this error means that the project web page contains a Siesta version w/o the automation package (Siesta Lite). Need to make sure the project web page and the launcher binary uses the same Siesta package.

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