Robot Framework calling add_argument with spaces

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In order to set a custom user-agent of browser used by robot framework, I've found every where that you can set that like that :

    ${options}=                         Evaluate
    ...                                 sys.modules['selenium.webdriver'].ChromeOptions()
    ...                                 sys, selenium.webdriver
    Call Method                         ${options}
    ...                                 add_argument                            --user-agent\=User agent with spaces

    Create WebDriver                    Chrome                                  chrome_options=${options}

    Go To                               https://www.whatismybrowser.com/detect/what-is-my-user-agent

But the value of the add_argument User agent with spaces is not escaped and it adds unwanted wrong tabs in the browser : enter image description here

The user agent detected by whatismybrowser.com is User.

My question is pretty simple, how do I pass argument values that have spaces ?

I've tried :

  • User agent with spaces
  • User\ agent\ with\ spaces
  • User\\ agent\\ with\\ spaces
  • User${SPACE}agent${SPACE}with${SPACE}spaces
  • User\${SPACE}agent\${SPACE}with\${SPACE}spaces
  • "User agent with spaces"
  • 'User agent with spaces'

None of these works...

robotframework selenium-webdriver user-agent
1 Answers

I've found the root cause of my problem.

While searching deeper about my problem, I've found that question that is exactly the problem I had too : add_argument for user agent cuts off at first space

I'm using a robot-framework docker image here : https://github.com/ppodgorsek/docker-robot-framework

The binary launcher bin/chromium-browser.sh contains the bash positional argument operator unquoted :

#!/bin/sh

exec /usr/lib/chromium/chrome-original --disable-gpu --no-sandbox $@

Replacing that with a quoted positional argument operator solve the problem and I can set a custom user-agent of the controlled browser.

#!/bin/sh

exec /usr/lib/chromium/chrome-original --disable-gpu --no-sandbox "$@"
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