can i use selenium grid on single machine

Question

I don't have multiple machines at my job. I have one window and one mac for script execution. I was wondering if i can use selenium grid for script execution on single machine.I never used selenium grid. Any article, links or suggestion is highly appreciated.

Answer 1

Yes, you can start a selenium gird with multiple node on single machine, but RAM should be at least 8GB because it will running test suites with more than 4 browser instance it need more RAM if not browser gets closed. http://selenium-release.storage.googleapis.com/index.html Download standalone jar.

java -jar selenium-server-standalone-2.45.0.jar -role hub 

It will start hub .

To start nodes open different cmd and type following command to start 'n' number nodes. The command is below:

java -jar lib/selenium-server-standalone-2.43.1.jar -role node  -hub http://localhost:4444/grid/register -port 5555

java -jar lib/selenium-server-standalone-2.43.1.jar -role node  -hub http://localhost:4444/grid/register -port 6666

java -jar lib/selenium-server-standalone-2.43.1.jar -role node  -hub http://localhost:4444/grid/register -port 7777

If you want to run same test case in different browser download the browser drivers here

Run the following command to start different browsers: For example:

java -jar selenium-server-standalone-2.45.0.jar -role webdriver -hub http://localhost:4444/grid/register -Dwebdriver.chrome.driver=C:\Users\xyz\Desktop\chromedriver.exe

java -jar selenium-server-standalone-2.45.0.jar -role webdriver -hub http://localhost:4444/grid/register -port 6666 -Dwebdriver.chrome.driver=C:\Users\xyz\Desktop\chromedriver.exe.

This will start chrome browser and node.