Using TrifleJs for Headless Browser Testing with Selenium

Other Questions Headless Browser
1

I have several UI test cases that I execute through an Azure DevOps release pipeline, and they function correctly in Chrome and Firefox with headless mode enabled. I’m now looking to activate headless mode for Internet Explorer (IE11). My research suggests that this is possible with TrifleJs. Could someone guide me on how to set up TrifleJs in Visual Studio 2019? I would appreciate some sample C# code for reference.

Browser: IE11,
Server: Windows Server 2019 Datacenter.

2

To run headless browser testing for Internet Explorer using TrifleJs in Visual Studio 2019, you can follow these steps. TrifleJs is a headless browser that utilizes the IE rendering engine, suitable for your requirement. Here's how you can get started:

1. Setting Up TrifleJs

  1. First, download and extract TrifleJs from its GitHub repository.
  2. Place the extracted files in a known directory on your server where your Visual Studio project can reference them.

2. Configuring Your Visual Studio Project

  1. Open Visual Studio 2019 and create a new C# Console App project.
  2. Include the TrifleJs library in your project by adding a reference to the trifle.js file. This can typically be done through the "Add Reference" dialog in Visual Studio.

3. Example C# Code

Here's a simple code snippet to get you started with running a headless IE browser using TrifleJs:


using System;
using Trifle;

class Program
{
    static void Main()
    {
        var browser = new Browser();
        browser.Navigate("http://example.com"); // Replace with your URL

        Console.WriteLine("Page Title: " + browser.PageTitle);
        Console.WriteLine("Is Headless: " + browser.Execute("return Trifle.isHeadless();"));

        browser.Close();
    }
}

In this example, the browser is navigated to a specified URL, and you can fetch and print the page title to check if everything is set up correctly.

4. Running the Application

  1. Compile and run your C# project.
  2. The output should show the page title, confirming that the headless test is working correctly.

Note that TrifleJs runs in a very unique headless manner specific to IE, so this setup might require some additional debugging depending on your specific use cases and environment.

3

To set up TrifleJs for your headless browser testing on IE11 using Visual Studio 2019, follow these steps:

1. Install TrifleJs

  • Download TrifleJs from its GitHub repository and extract it.
  • Place the files in a local directory accessible by your project.

2. Set Up Your Project

  • Create a new C# Console App in Visual Studio 2019.
  • Add a reference to the trifle.js file. Use "Add Reference" in Visual Studio.

3. Example C# Code


using System;
using Trifle;

class Program

{

static void Main()

{

var browser = new Browser();

browser.Navigate(“http://example.com”); // Replace with your URL


    Console.WriteLine("Page Title: " + browser.PageTitle);
    Console.WriteLine("Is Headless: " + browser.Execute("return Trifle.isHeadless();"));

    browser.Close();
}



}

This code navigates to a URL and prints the page title, verifying the setup works.

4. Run Your Application

  • Build and run the project to execute your headless IE tests.
  • Check the console output for the page title to confirm success.
4

Setting up TrifleJs for headless browser testing in IE11 via Visual Studio 2019 involves a few straightforward steps. Here's a concise guide to get you started:

1. Download and Prepare TrifleJs

2. Configure Visual Studio Project

  • Create a new C# Console Application in Visual Studio 2019.
  • Include the TrifleJs library by adding a reference to the trifle.js file using the "Add Reference" functionality.

3. Implement Sample C# Code


using System;
using Trifle;

class Program

{

static void Main()

{

var browser = new Browser();

browser.Navigate(“http://example.com”); // Replace with your actual URL


    Console.WriteLine("Page Title: " + browser.PageTitle);
    Console.WriteLine("Is Headless: " + browser.Execute("return Trifle.isHeadless();"));

    browser.Close();
}



}

This script demonstrates basic navigation and headless status verification.

4. Execute Your Application

  • Build the solution in Visual Studio.
  • Run the application to ensure the console outputs the page title, confirming successful execution in headless mode.

This setup should meet your requirements for running headless tests on IE11. Adjust the code and configuration based on your specific testing needs.