Network connection throtling with Selenium - Java

Question

I have been trying to implement network throttling with Selenium-WebDriver based on the snippet available here in this post. https://stackoverflow.com/a/56526094/2122388

Re-posting the code from above link:

protected void networkThrotting() throws IOException {
  Map map = new HashMap();
  map.put("offline", false);
  map.put("latency", 5);
  map.put("download_throughput", 500);
  map.put("upload_throughput", 1024);

  CommandExecutor executor = ((ChromeDriver)driver).getCommandExecutor();
  Response response = executor.execute(
        new Command(((ChromeDriver)driver).getSessionId(), "setNetworkConditions", ImmutableMap.of("network_conditions", ImmutableMap.copyOf(map)))
  );
}

It throws as exception like org.openqa.selenium.UnsupportedCommandException: setNetworkConditions. With my debugging, found like there is no definition for setNetworkConditions in AbstractHttpCommandCodec but found setNetworkConnection. SO tried changing this as below:

protected void networkThrotting() throws IOException {
      Map map = new HashMap();
      map.put("offline", false);
      map.put("latency", 5);
      map.put("download_throughput", 500);
      map.put("upload_throughput", 1024);
    
      CommandExecutor executor = ((ChromeDriver)driver).getCommandExecutor();
      Response response = executor.execute(
            new Command(((ChromeDriver)driver).getSessionId(), "setNetworkConnection", ImmutableMap.of("network_connection", ImmutableMap.copyOf(map)))
      );
    }

It does not throw any exception and let the test pass, but there is no change in the network speed as intended. I am using Selenium 3.x and Chrome 100.x.

So any input here is much appreciated.

Answer 1

If anyone else is here because of same issue, then here is the solutions (alternate) I figured out at the end:

1. Upgrade to Selenium-4.x and use DevTools can make things much easier and straightforward
2. Use BrowserMob-Proxy and play around

I chose Option-2 for implementing the network throttling, since I had some limitations in upgrading my Selenium version to 4.x (but upgrading the Selenium version is much simple and easy solution).