Configuring Selenium to interact with the JavaScript console in Ruby code

How can I configure Selenium with Ruby to access the JavaScript console, including messages from console.log, console.error, console.info, etc.?

I've come across various resources providing code for Java, Python, and C#, but I'm struggling to find the correct setup for Ruby.

My current attempt for Firefox looks like this:

  caps = Selenium::WebDriver::Remote::Capabilities.chrome
  caps[:loggingPref] = {:browser => :all}
  return Selenium::WebDriver.for :firefox, :desired_capabilities => caps

However, this code doesn't seem to be intercepting all the desired messages (only some logging messages, not those from console.log, console.error, etc.). It seems like there might be a small typo or incorrect syntax somewhere that's causing the issue.

In Chrome, by default, you can access messages from console.info, console.error, and console.warn, but not console.log. I assume there must be a similar method for configuring the Chrome driver to capture all messages, but I haven't been able to pinpoint the exact combination of parameters needed to achieve this.

Answer №1

In the world of Ruby, there exists a magical power known as :logging_prefs and the mysterious :browser parameter is said to possess the essence of a string.

Behold, behold! Witness the incantation below (you were nearly there!):

caps = Selenium::WebDriver::Remote::Capabilities.firefox
caps[:logging_prefs] = {:browser => "ALL"}
return Selenium::WebDriver.for :firefox, :desired_capabilities => caps

Once you have completed the ritual, you shall be able to unearth the sacred log messages by invoking driver.manage.logs.get(:browser)

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