Parallel execution of tests using Selenoid and Python

by discus12

Instruction for quickly start cluster for Selenium-tests using Docker and Selenoid. Selenoid – Selenium WebDriver protocol implementation, launching browsers in isolated Docker containers. The main application for automated testing web-application in a real browsers.

Selenoid source code and documentation: Selenoid

Used:

Selenoid Docker Python

There must be:
– Install Docker on MacOs;
– Upload Selenoid – Configuration Manager;
– Start web-UI and Hub;
– Run Python tests in parallel;

Install and configure Docker were described: HERE. In short, create a profile on Docker Hub, upload and install application: Docker Desktop, login through the terminal.

After Docker install and setup, will be upload utility Configuration Manager.

curl -s https://aerokube.com/cm/bash | bash

On Linux and Mac OS
./cm selenoid start --vnc

To override Selenoid listen port add --port flag:
./cm selenoid start --port 4445
Selenoid help / stop
./cm selenoid --help
./cm selenoid stop
$ ./cm selenoid stop
Using Docker
- Your Docker API version is 1.39
Stopping Selenoid...
Successfully stopped Selenoid
$ ./cm selenoid-ui stop
Using Docker
- Your Docker API version is 1.39
Stopping Selenoid UI...
Successfully stopped Selenoid UI
docker --version
docker image ls
docker ps -a
ipconfig getifaddr en0

ls – command list, return all Dockers tom
ps -a – show Docker containers that are currently running
ipconfig – command shows IP address on MacOs

Selenoid Web version, default: http://127.0.0.1:8080/#/

./cm selenoid-ui start

Test code example:

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
 
capabilities = {
    "browserName": "chrome",
    "version": "90.0",
    "platform": "LINUX"
}
 
driver = webdriver.Remote(
    command_executor='http://localhost:4444/wd/hub',
    desired_capabilities=capabilities
)
 
try:
print 'Session ID is: %s' % driver.session_id
print 'Opening the page...'
 driver.get("http://www.python.org")
 
 assert "Python" in driver.title
 elem = driver.find_element_by_name("q")
 elem.clear()
 elem.send_keys("pycon")
 elem.send_keys(Keys.RETURN)
 assert "No results found." not in driver.page_source
print 'Taking screenshot...'
driver.get_screenshot_as_file(driver.session_id + '.png')
finally:
    driver.quit()
python test_selenide.py

To add or change browser versions, you need to edit the browsers.json configuration file (PATH: .aerokube / selenoid)

{
    "chrome": {
        "default": "91.0",
        "versions": {
            "90.0": {
                "image": "selenoid/chrome:90.0",
                "port": "4444",
                "path": "/"
            },
            "91.0": {
                "image": "selenoid/chrome:91.0",
                "port": "4444",
                "path": "/"
            }
        }
    },
    "firefox": {
        "default": "89.0",
        "versions": {
            "88.0": {
                "image": "selenoid/firefox:88.0",
                "port": "4444",
                "path": "/wd/hub"
            },
            "89.0": {
                "image": "selenoid/firefox:89.0",
                "port": "4444",
                "path": "/wd/hub"
            }
        }
    },
    "opera": {
        "default": "76.0",
        "versions": {
            "75.0": {
                "image": "selenoid/opera:75.0",
                "port": "4444",
                "path": "/"
            },
            "76.0": {
                "image": "selenoid/opera:76.0",
                "port": "4444",
                "path": "/"
            }
        }
    },
    "safari": {
        "default": "14.0",
        "versions": {
            "14.0": {
                "image": "browsers/safari:14.0",
                "port": "4444",
                "path": "/"
            }
        }
    }
}

Also upload new browser image:

docker pull browsers/safari:13.0
docker pull browsers/safari:14.0
 % docker image ls                 
REPOSITORY                TAG              IMAGE ID       CREATED         SIZE
selenoid/firefox          89.0             aa32a7fb78d4   8 days ago      1.1GB
selenoid/chrome           91.0             8f9abf8b7783   2 weeks ago     1.09GB
selenoid/opera            76.0             0d581d76417b   5 weeks ago     1.06GB
selenoid/firefox          88.0             76d9488c8ee8   7 weeks ago     1.1GB
selenoid/chrome           90.0             0e14eff7be65   2 months ago    1.07GB
browsers/safari           14.0             4052e42b4cef   2 months ago    918MB
selenoid/opera            75.0             4a7ec014e6c0   2 months ago    1.06GB
aerokube/selenoid         1.10.3           cb9dc8b9ed2c   2 months ago    16.5MB
aerokube/selenoid-ui      1.10.3           8dfa15d6e0d4   3 months ago    17.5MB
browsers/edge             89.0             093b827792ac   5 months ago    972MB
browsers/edge             88.0             739f028bfc9c   6 months ago    1.62GB
browsers/safari           13.0             fec2bd5eda07   11 months ago   753MB
selenoid/video-recorder   latest-release   b7300761e77e   14 months ago   27.4MB

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