How to run headless mode through terminal

Robot Framework
1

Hi
Can anyone help me with this?
I’m trying to run test cases in headless mode from the terminal, but when I use this command:
robot --variable BROWSER:headless_chrome filename.robot
it’s not working.
@damies13

2

Setting a variable is not enough, you also need to pass the variable to Open Browser keyword something like this;

Open Browser  ${URL}  browser=${BROWSER}
1 Like
3

Hi, thanks for the quick reply.

I have added like this, can you tell me where i need to update
*** Settings ***
Library SeleniumLibrary

*** Variables ***
${URL} testurl.com
${browser} Chrome

*** Test Cases ***
To test authentication pop up
Launching Browser ${url} ${browser}

*** Keywords ***
Launching Browser
[Arguments] ${url} ${browserName}
Open Browser ${url} ${browserName}
Set Selenium Implicit Wait 5
Maximize Browser Window

Close the browser
Close All Browsers

4

Hi Kavitha,

When you say:

What’s not working? did you get an error message? usually the log.html file will tell you something that will help us guide you to the right solution.

Also

  • Are you running the command on your local machine or some other machine?
  • Does the test pass when you use Chrome (not headless) on the same machine?

Dave.

5

Hi Dave,

I am running the script in my local machine.

This the script which iam trying to run in headless mode

*** Settings ***
Library SeleniumLibrary

*** Variables ***
${URL} Your Store
${browser} headlessChrome

*** Test Cases ***
To test authentication pop up
Launching Browser ${url} ${browser}

*** Keywords ***
Launching Browser
[Arguments] ${url} ${browserName}
Open Browser ${url} ${browserName}
Set Selenium Implicit Wait 5
Maximize Browser Window

When i run this on terminal using this command robot 0Testing\Test\mytest.robot , it will work fine.
However when i try to use this robot --variable BROWSER:headless_chrome filename.robot, iam getting
the error failed: File or directory to execute does not exist.

Can you please guide me how to do this

6

Hi Kavitha,

Did it say was it filename.robot it couldn’t find or some other file?

To start with while troubleshooting can we stick to the same robot file? maybe try this first:

robot --variable BROWSER:headless_chrome 0Testing\Test\mytest.robot

Also even though it shouldn’t matter, can we also keep the variables with the same case, i.e. in your robot file ${browser} is lower case, so make it the same on the command line like this:

robot --variable browser:headless_chrome 0Testing\Test\mytest.robot

Lets see if you still get the File or directory to execute does not exist. or something else?

Dave.

7

Hi Dave,
This time i tried both the way as you suggested
robot --variable browser:headless_chrome 0Testing\Test\mytest.robot,
and now i am getting ValueError: headless_chrome is not a supported browser.

8

Hi Kavitha,

Are you using Selenium or Browser Library?
SeleniumLibrary Open Browser headlesschrome
Browser Library Open Browser Doesn’t use this type of syntax, it uses a headless=True argument

So that’s probably why.

Dave.

1 Like
9

Hi Dave
Its working, thanks.
i used the command robot --variable BROWSER:headlessChrome 0Testing\Test\mytest.robot