Selenium 4 beta 2 - C# - Am I using Network correctly or is this a bug only capturing 1st response

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Chris Bloom

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May 14, 2021, 10:15:57 AM5/14/21

to Selenium Users

Hi,

Sample code below for a quick test turning on Network adapter and adding an event listening to ResponseReceived and navigating to 2 webpages. The event handler is only called once though.

Side note I do the same for console logs and the event listener gets called for every log as expected so I'm not sure if this is a bug or my usage is wrong as I haven't seen the proper usage documented for the Selenium 4 beta version yet.

using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using OpenQA.Selenium.Chrome;
using OpenQA.Selenium.DevTools;
using OpenQA.Selenium.DevTools.V89.Network;

namespace Selenium_Network_Test
{
    [TestClass]
    public class UnitTest1
    {
        List<string> headers = new List<string>();

        [TestMethod]
        public void TestMethod1()
        {

            ChromeOptions options = new ChromeOptions();

            ChromeDriver driver = new ChromeDriver(ChromeDriverService.CreateDefaultService(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location)), options);

            DevToolsSession session = driver.GetDevToolsSession();

            NetworkAdapter networkAdapter = new NetworkAdapter(session);

            networkAdapter.Enable(new EnableCommandSettings()).GetAwaiter().GetResult();

            networkAdapter.ResponseReceived += NetworkAdapter_ResponseReceived;

            driver.Navigate().GoToUrl("https://google.com");

            System.Threading.Thread.Sleep(2000);

            driver.Navigate().GoToUrl("https://www.selenium.dev/documentation/en/support_packages/chrome_devtools/");

            System.Threading.Thread.Sleep(2000);

            driver.Close();

            Assert.IsTrue(headers.Count > 1);

        }

        private void NetworkAdapter_ResponseReceived(object sender, ResponseReceivedEventArgs e)
        {
            headers.Add(e.Response.HeadersText);
        }
    }
}

Chris Bloom

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May 14, 2021, 1:17:34 PM5/14/21

to Selenium Users

I was actually able to get this working making use of the Fetch ( using OpenQA.Selenium.DevTools.V89.Fetch) not Network domain. Little surprised as Fetch domain is listed as experimental in the Chrome Dev Tools protocol, guess the Selenium implementation is built around it