Watir - Headless Testing

Syntax

Browser = Watir::Browser.new :chrome, headless: true

The test page that we are going to test is shown here −

<html>
   <head>
      <title>Testing UI using Watir</title>
   </head>
   
   <body>
      <script type = "text/javascript">
         function wsentered() {
            console.log("inside wsentered");
            var firstname = document.getElementById("firstname");
            
            if (firstname.value != "") {
               document.getElementById("displayfirstname").innerHTML = 
                  "The name entered is : " + firstname.value;
               
               document.getElementById("displayfirstname").style.display = "";
            }
         }
      </script>
      
      <div id = "divfirstname">
         Enter First Name : <input type = "text" id = "firstname" name = "firstname" onchange = "wsentered()" />
      </div>
      <br/>
      <br/>
      <div style = "display:none;" id = "displayfirstname"></div>
   </body>
</html>

Output

Watir code

require 'watir'
b = Watir::Browser.new :chrome, headless: true
b.goto('http://localhost/uitesting/textbox.html')
t = b.text_field(name: 'firstname')
t.exists?
t.set 'Riya Kapoor'
t.value
t.fire_event('onchange')
b.screenshot.save 'headless.png'

We have added the option headless : true to the Watir chrome browser. When you execute the Ruby program, it will not open the browser, everything will get executed in the command line −

DevTools listening on ws://127.0.0.1:53973/devtools/browser/b4127866-afb8-4c74-b967-5bacb3354b19
[0505/144843.905:INFO:CONSOLE(8)] "inside wsentered", source: http://localhost/uitesting/textbox.html (8)

We have added console.log message and the same in printed in command line.

The screenshot of headless.png is shown below −

In Firefox

The watir code for Firefox is shown here −

require 'watir'
b = Watir::Browser.new :firefox, headless: true
b.goto('http://localhost/uitesting/textbox.html')
t = b.text_field(name: 'firstname')
t.exists?
t.set 'Riya Kapoor'
t.value
t.fire_event('onchange')
b.screenshot.save 'headlessfirefox.png'

The screenshot for headlessfirefox.png is shown here −

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